7adp

Cryo-EM structure of human ER membrane protein complex in GDN detergent

Method: ELECTRON MICROSCOPY D_max: 191.2 Å Quality: REASONABLE

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1. Protein Identity and Related Structures Protein Identity & Related Structures

ER membrane protein complex subunit 1

Homo sapiens

State in the Current Structure

Assembly	Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Associated Components	Method and Experimental Conditions	Structure Quality
1	Protein heterocomplex Heteromer Protein × 8 PDB declaration: octameric（8） Consistent with protein copy count	Chain A； UniProt 1–993	Not recorded	ER membrane protein complex subunit 2 × 1 （Q15006） ER membrane protein complex subunit 3 × 1 （Q9P0I2） ER membrane protein complex subunit 4 × 1 （Q5J8M3） Membrane magnesium transporter 1 × 1 （Q8N4V1） ER membrane protein complex subunit 6 × 1 （Q9BV81） ER membrane protein complex subunit 8 × 1 （O43402） ER membrane protein complex subunit 10 × 1 （Q5UCC4） NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 3	ELECTRON MICROSCOPY cryo-EM buffer：pH 6；10 mM ammonium citrate pH 6.0, 100 mM sodium chloride, 0.25 mM TCEP cryo-EM vitrification conditions：Cryogen ETHANE	Resolution 3.60 Å

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

Other PDB	Difference from Current Entry 7ADP	Assembly / Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Non-polymers	Method and Experimental Conditions	Structure Quality
6WW7 Structure of the human ER membrane protein complex in a lipid nanodisc Deposited 2020-05-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 9 PDB declaration: nonameric	Chain A 1–993（993 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
6Z3W Human ER membrane protein complex Deposited 2020-05-22	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 9 PDB declaration: nonameric	Chain A 482–510（29 aa） Chain A 960–993（34 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.40 Å
7ADO Cryo-EM structure of human ER membrane protein complex in lipid nanodiscs Deposited 2020-09-15	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 10 PDB declaration: decameric	Chain A 1–993（993 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 4 PCW 1,2-DIOLEOYL-SN-GLYCERO-3-PHOSPHOCHOLINE × 5	ELECTRON MICROSCOPY cryo-EM buffer pH 6；10 mM ammonium citrate pH 6.0, 100 mM sodium chloride, 0.25 mM TCEP cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.39 Å
8EOI Structure of a human EMC:human Cav1.2 channel complex in GDN detergent Deposited 2022-10-03	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 11 PDB declaration: undecameric	Chain A 21–993（973 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 9Z9 (3beta,14beta,17beta,25R)-3-[4-methoxy-3-(methoxymethyl)butoxy]spirost-5-en × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
8J0N cryo-EM structure of human EMC Deposited 2023-04-11	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 9 PDB declaration: nonameric	Chain A 1–993（993 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.47 Å
8J0O cryo-EM structure of human EMC and VDAC Deposited 2023-04-11	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 10 PDB declaration: decameric	Chain A 1–993（993 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.32 Å
8S9S Structure of the human ER membrane protein complex (EMC) in GDN Deposited 2023-03-30	Different oligomeric state Different ligand/ion Different experimental conditions	Assembly 1 Other combination Heteromer；Protein × 9 PDB declaration: nonameric	Chain 1 1–993（993 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 PCW 1,2-DIOLEOYL-SN-GLYCERO-3-PHOSPHOCHOLINE × 6	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
9C7V Structure of the human BOS:human EMC complex in GDN Deposited 2024-06-11	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 12 PDB declaration: dodecameric	Chain 1 1–993（993 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.60 Å
9ZZ6 The ER membrane protein complex acts as a chaperone to promote voltage-gated calcium channel assembly Deposited 2026-01-06	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 11 PDB declaration: undecameric	Chain A 1–993（993 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5；pH 7.5 adjusted with KOH ( potassium hydroxide). cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.16 Å

9 other PDB entries and 9 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence

UniProt name	EMC1_HUMAN
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–993； UniProt 1–993

ER membrane protein complex subunit 2

Homo sapiens

UniProt Q15006

State in the Current Structure

Assembly	Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Associated Components	Method and Experimental Conditions	Structure Quality
1	Protein heterocomplex Heteromer Protein × 8 PDB declaration: octameric（8） Consistent with protein copy count	Chain B； UniProt 1–297	Not recorded	ER membrane protein complex subunit 1 × 1 （Q8N766） ER membrane protein complex subunit 3 × 1 （Q9P0I2） ER membrane protein complex subunit 4 × 1 （Q5J8M3） Membrane magnesium transporter 1 × 1 （Q8N4V1） ER membrane protein complex subunit 6 × 1 （Q9BV81） ER membrane protein complex subunit 8 × 1 （O43402） ER membrane protein complex subunit 10 × 1 （Q5UCC4） NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 3	ELECTRON MICROSCOPY cryo-EM buffer：pH 6；10 mM ammonium citrate pH 6.0, 100 mM sodium chloride, 0.25 mM TCEP cryo-EM vitrification conditions：Cryogen ETHANE	Resolution 3.60 Å

Other States of the Same Protein in the Database

Other PDB	Difference from Current Entry 7ADP	Assembly / Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Non-polymers	Method and Experimental Conditions	Structure Quality
6WW7 Structure of the human ER membrane protein complex in a lipid nanodisc Deposited 2020-05-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 9 PDB declaration: nonameric	Chain B 1–297（297 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
6Y4L Crystal structure of human ER membrane protein complex subunits EMC2 and EMC9 Deposited 2020-02-21	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain A 11–274（264 aa）	Not recorded	SO4 SULFATE ION × 3 EDO 1,2-ETHANEDIOL × 3 PE4 2-{2-[2-(2-{2-[2-(2-ETHOXY-ETHOXY)-ETHOXY]-ETHOXY}-ETHOXY)-ETHOXY]-ETHOXY}-ETHANOL × 1 PEG DI(HYDROXYETHYL)ETHER × 3	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8.3；293.15 K；34% PEG4000, 0.1 M Tris pH 8.3, and 0.2 M lithium sulfate (For I03 native dataset) X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8.3；293.15 K；28% PEG4000, 0.1 M Tris pH 8.3, and 0.2 M lithium sulfate (For I23 S-SAD dataset)	Resolution 2.20 Å R-free 0.250
6Z3W Human ER membrane protein complex Deposited 2020-05-22	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 9 PDB declaration: nonameric	Chain B 1–297（297 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.40 Å
7ADO Cryo-EM structure of human ER membrane protein complex in lipid nanodiscs Deposited 2020-09-15	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 10 PDB declaration: decameric	Chain B 1–297（297 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 4 PCW 1,2-DIOLEOYL-SN-GLYCERO-3-PHOSPHOCHOLINE × 5	ELECTRON MICROSCOPY cryo-EM buffer pH 6；10 mM ammonium citrate pH 6.0, 100 mM sodium chloride, 0.25 mM TCEP cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.39 Å
8EOI Structure of a human EMC:human Cav1.2 channel complex in GDN detergent Deposited 2022-10-03	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 11 PDB declaration: undecameric	Chain B 3–293（291 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 9Z9 (3beta,14beta,17beta,25R)-3-[4-methoxy-3-(methoxymethyl)butoxy]spirost-5-en × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
8J0N cryo-EM structure of human EMC Deposited 2023-04-11	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 9 PDB declaration: nonameric	Chain B 1–297（297 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.47 Å
8J0O cryo-EM structure of human EMC and VDAC Deposited 2023-04-11	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 10 PDB declaration: decameric	Chain B 1–297（297 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.32 Å
8S9S Structure of the human ER membrane protein complex (EMC) in GDN Deposited 2023-03-30	Different oligomeric state Different ligand/ion Different experimental conditions	Assembly 1 Other combination Heteromer；Protein × 9 PDB declaration: nonameric	Chain 2 1–297（297 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 PCW 1,2-DIOLEOYL-SN-GLYCERO-3-PHOSPHOCHOLINE × 6	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
9C7V Structure of the human BOS:human EMC complex in GDN Deposited 2024-06-11	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 12 PDB declaration: dodecameric	Chain 2 1–297（297 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.60 Å
9ZZ6 The ER membrane protein complex acts as a chaperone to promote voltage-gated calcium channel assembly Deposited 2026-01-06	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 11 PDB declaration: undecameric	Chain B 1–297（297 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5；pH 7.5 adjusted with KOH ( potassium hydroxide). cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.16 Å

10 other PDB entries and 10 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence

UniProt name	EMC2_HUMAN
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain B； PDBConstruct 1–297； UniProt 1–297

ER membrane protein complex subunit 3

Homo sapiens

UniProt Q9P0I2

State in the Current Structure

Assembly	Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Associated Components	Method and Experimental Conditions	Structure Quality
1	Protein heterocomplex Heteromer Protein × 8 PDB declaration: octameric（8） Consistent with protein copy count	Chain C； UniProt 1–261	Not recorded	ER membrane protein complex subunit 1 × 1 （Q8N766） ER membrane protein complex subunit 2 × 1 （Q15006） ER membrane protein complex subunit 4 × 1 （Q5J8M3） Membrane magnesium transporter 1 × 1 （Q8N4V1） ER membrane protein complex subunit 6 × 1 （Q9BV81） ER membrane protein complex subunit 8 × 1 （O43402） ER membrane protein complex subunit 10 × 1 （Q5UCC4） NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 3	ELECTRON MICROSCOPY cryo-EM buffer：pH 6；10 mM ammonium citrate pH 6.0, 100 mM sodium chloride, 0.25 mM TCEP cryo-EM vitrification conditions：Cryogen ETHANE	Resolution 3.60 Å

Other States of the Same Protein in the Database

Other PDB	Difference from Current Entry 7ADP	Assembly / Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Non-polymers	Method and Experimental Conditions	Structure Quality
6WW7 Structure of the human ER membrane protein complex in a lipid nanodisc Deposited 2020-05-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 9 PDB declaration: nonameric	Chain C 1–261（261 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
6Z3W Human ER membrane protein complex Deposited 2020-05-22	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 9 PDB declaration: nonameric	Chain C 1–261（261 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.40 Å
7ADO Cryo-EM structure of human ER membrane protein complex in lipid nanodiscs Deposited 2020-09-15	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 10 PDB declaration: decameric	Chain C 1–261（261 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 4 PCW 1,2-DIOLEOYL-SN-GLYCERO-3-PHOSPHOCHOLINE × 5	ELECTRON MICROSCOPY cryo-EM buffer pH 6；10 mM ammonium citrate pH 6.0, 100 mM sodium chloride, 0.25 mM TCEP cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.39 Å
8EOI Structure of a human EMC:human Cav1.2 channel complex in GDN detergent Deposited 2022-10-03	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 11 PDB declaration: undecameric	Chain C 4–261（258 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 9Z9 (3beta,14beta,17beta,25R)-3-[4-methoxy-3-(methoxymethyl)butoxy]spirost-5-en × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
8J0N cryo-EM structure of human EMC Deposited 2023-04-11	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 9 PDB declaration: nonameric	Chain C 1–261（261 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.47 Å
8J0O cryo-EM structure of human EMC and VDAC Deposited 2023-04-11	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 10 PDB declaration: decameric	Chain C 1–261（261 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.32 Å
8S9S Structure of the human ER membrane protein complex (EMC) in GDN Deposited 2023-03-30	Different oligomeric state Different ligand/ion Different experimental conditions	Assembly 1 Other combination Heteromer；Protein × 9 PDB declaration: nonameric	Chain 3 1–261（261 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 PCW 1,2-DIOLEOYL-SN-GLYCERO-3-PHOSPHOCHOLINE × 6	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
9C7V Structure of the human BOS:human EMC complex in GDN Deposited 2024-06-11	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 12 PDB declaration: dodecameric	Chain 3 1–261（261 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.60 Å
9ZZ6 The ER membrane protein complex acts as a chaperone to promote voltage-gated calcium channel assembly Deposited 2026-01-06	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 11 PDB declaration: undecameric	Chain C 1–261（261 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5；pH 7.5 adjusted with KOH ( potassium hydroxide). cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.16 Å

9 other PDB entries and 9 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence

UniProt name	EMC3_HUMAN
Isoform	—
PDB entities	3
Chains and sequence ranges	Author chain C； PDBConstruct 1–261； UniProt 1–261

ER membrane protein complex subunit 4

Homo sapiens

UniProt Q5J8M3

State in the Current Structure

Assembly	Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Associated Components	Method and Experimental Conditions	Structure Quality
1	Protein heterocomplex Heteromer Protein × 8 PDB declaration: octameric（8） Consistent with protein copy count	Chain D； UniProt 1–183	Not recorded	ER membrane protein complex subunit 1 × 1 （Q8N766） ER membrane protein complex subunit 2 × 1 （Q15006） ER membrane protein complex subunit 3 × 1 （Q9P0I2） Membrane magnesium transporter 1 × 1 （Q8N4V1） ER membrane protein complex subunit 6 × 1 （Q9BV81） ER membrane protein complex subunit 8 × 1 （O43402） ER membrane protein complex subunit 10 × 1 （Q5UCC4） NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 3	ELECTRON MICROSCOPY cryo-EM buffer：pH 6；10 mM ammonium citrate pH 6.0, 100 mM sodium chloride, 0.25 mM TCEP cryo-EM vitrification conditions：Cryogen ETHANE	Resolution 3.60 Å

Other States of the Same Protein in the Database

Other PDB	Difference from Current Entry 7ADP	Assembly / Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Non-polymers	Method and Experimental Conditions	Structure Quality
6Z3W Human ER membrane protein complex Deposited 2020-05-22	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 9 PDB declaration: nonameric	Chain D 1–183（183 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.40 Å
7ADO Cryo-EM structure of human ER membrane protein complex in lipid nanodiscs Deposited 2020-09-15	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 10 PDB declaration: decameric	Chain D 1–183（183 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 4 PCW 1,2-DIOLEOYL-SN-GLYCERO-3-PHOSPHOCHOLINE × 5	ELECTRON MICROSCOPY cryo-EM buffer pH 6；10 mM ammonium citrate pH 6.0, 100 mM sodium chloride, 0.25 mM TCEP cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.39 Å
8EOI Structure of a human EMC:human Cav1.2 channel complex in GDN detergent Deposited 2022-10-03	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 11 PDB declaration: undecameric	Chain D 14–183（170 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 9Z9 (3beta,14beta,17beta,25R)-3-[4-methoxy-3-(methoxymethyl)butoxy]spirost-5-en × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
8J0N cryo-EM structure of human EMC Deposited 2023-04-11	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 9 PDB declaration: nonameric	Chain D 1–183（183 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.47 Å
8J0O cryo-EM structure of human EMC and VDAC Deposited 2023-04-11	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 10 PDB declaration: decameric	Chain D 1–183（183 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.32 Å
8S9S Structure of the human ER membrane protein complex (EMC) in GDN Deposited 2023-03-30	Different oligomeric state Different ligand/ion Different experimental conditions	Assembly 1 Other combination Heteromer；Protein × 9 PDB declaration: nonameric	Chain 4 1–183（183 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 PCW 1,2-DIOLEOYL-SN-GLYCERO-3-PHOSPHOCHOLINE × 6	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
9C7V Structure of the human BOS:human EMC complex in GDN Deposited 2024-06-11	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 12 PDB declaration: dodecameric	Chain 4 1–183（183 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.60 Å
9ZZ6 The ER membrane protein complex acts as a chaperone to promote voltage-gated calcium channel assembly Deposited 2026-01-06	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 11 PDB declaration: undecameric	Chain D 1–183（183 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5；pH 7.5 adjusted with KOH ( potassium hydroxide). cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.16 Å

8 other PDB entries and 8 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence

UniProt name	EMC4_HUMAN
Isoform	—
PDB entities	4
Chains and sequence ranges	Author chain D； PDBConstruct 1–183； UniProt 1–183

Membrane magnesium transporter 1

Homo sapiens

UniProt Q8N4V1

State in the Current Structure

Assembly	Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Associated Components	Method and Experimental Conditions	Structure Quality
1	Protein heterocomplex Heteromer Protein × 8 PDB declaration: octameric（8） Consistent with protein copy count	Chain E； UniProt 1–131	Not recorded	ER membrane protein complex subunit 1 × 1 （Q8N766） ER membrane protein complex subunit 2 × 1 （Q15006） ER membrane protein complex subunit 3 × 1 （Q9P0I2） ER membrane protein complex subunit 4 × 1 （Q5J8M3） ER membrane protein complex subunit 6 × 1 （Q9BV81） ER membrane protein complex subunit 8 × 1 （O43402） ER membrane protein complex subunit 10 × 1 （Q5UCC4） NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 3	ELECTRON MICROSCOPY cryo-EM buffer：pH 6；10 mM ammonium citrate pH 6.0, 100 mM sodium chloride, 0.25 mM TCEP cryo-EM vitrification conditions：Cryogen ETHANE	Resolution 3.60 Å

Other States of the Same Protein in the Database

Other PDB	Difference from Current Entry 7ADP	Assembly / Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Non-polymers	Method and Experimental Conditions	Structure Quality
6WW7 Structure of the human ER membrane protein complex in a lipid nanodisc Deposited 2020-05-08	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 9 PDB declaration: nonameric	Chain E 66–196（131 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
6Z3W Human ER membrane protein complex Deposited 2020-05-22	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 9 PDB declaration: nonameric	Chain E 1–131（131 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.40 Å
7ADO Cryo-EM structure of human ER membrane protein complex in lipid nanodiscs Deposited 2020-09-15	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 10 PDB declaration: decameric	Chain E 1–131（131 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 4 PCW 1,2-DIOLEOYL-SN-GLYCERO-3-PHOSPHOCHOLINE × 5	ELECTRON MICROSCOPY cryo-EM buffer pH 6；10 mM ammonium citrate pH 6.0, 100 mM sodium chloride, 0.25 mM TCEP cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.39 Å
8EOI Structure of a human EMC:human Cav1.2 channel complex in GDN detergent Deposited 2022-10-03	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 11 PDB declaration: undecameric	Chain E 3–103（101 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 9Z9 (3beta,14beta,17beta,25R)-3-[4-methoxy-3-(methoxymethyl)butoxy]spirost-5-en × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
8J0N cryo-EM structure of human EMC Deposited 2023-04-11	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 9 PDB declaration: nonameric	Chain E 1–131（131 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.47 Å
8J0O cryo-EM structure of human EMC and VDAC Deposited 2023-04-11	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 10 PDB declaration: decameric	Chain E 1–131（131 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.32 Å
8S9S Structure of the human ER membrane protein complex (EMC) in GDN Deposited 2023-03-30	Different construct Different oligomeric state Different ligand/ion Different experimental conditions	Assembly 1 Other combination Heteromer；Protein × 9 PDB declaration: nonameric	Chain 5 66–196（131 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 PCW 1,2-DIOLEOYL-SN-GLYCERO-3-PHOSPHOCHOLINE × 6	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
9C7V Structure of the human BOS:human EMC complex in GDN Deposited 2024-06-11	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 12 PDB declaration: dodecameric	Chain 5 66–196（131 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.60 Å
9ZZ6 The ER membrane protein complex acts as a chaperone to promote voltage-gated calcium channel assembly Deposited 2026-01-06	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 11 PDB declaration: undecameric	Chain E 66–196（131 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5；pH 7.5 adjusted with KOH ( potassium hydroxide). cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.16 Å

9 other PDB entries and 9 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence

UniProt name	MMGT1_HUMAN
Isoform	—
PDB entities	5
Chains and sequence ranges	Author chain E； PDBConstruct 1–131； UniProt 1–131

ER membrane protein complex subunit 6

Homo sapiens

UniProt Q9BV81

State in the Current Structure

Assembly	Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Associated Components	Method and Experimental Conditions	Structure Quality
1	Protein heterocomplex Heteromer Protein × 8 PDB declaration: octameric（8） Consistent with protein copy count	Chain F； UniProt 1–110	Not recorded	ER membrane protein complex subunit 1 × 1 （Q8N766） ER membrane protein complex subunit 2 × 1 （Q15006） ER membrane protein complex subunit 3 × 1 （Q9P0I2） ER membrane protein complex subunit 4 × 1 （Q5J8M3） Membrane magnesium transporter 1 × 1 （Q8N4V1） ER membrane protein complex subunit 8 × 1 （O43402） ER membrane protein complex subunit 10 × 1 （Q5UCC4） NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 3	ELECTRON MICROSCOPY cryo-EM buffer：pH 6；10 mM ammonium citrate pH 6.0, 100 mM sodium chloride, 0.25 mM TCEP cryo-EM vitrification conditions：Cryogen ETHANE	Resolution 3.60 Å

Other States of the Same Protein in the Database

Other PDB	Difference from Current Entry 7ADP	Assembly / Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Non-polymers	Method and Experimental Conditions	Structure Quality
6WW7 Structure of the human ER membrane protein complex in a lipid nanodisc Deposited 2020-05-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 9 PDB declaration: nonameric	Chain F 1–110（110 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
6Z3W Human ER membrane protein complex Deposited 2020-05-22	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 9 PDB declaration: nonameric	Chain F 1–110（110 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.40 Å
7ADO Cryo-EM structure of human ER membrane protein complex in lipid nanodiscs Deposited 2020-09-15	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 10 PDB declaration: decameric	Chain F 1–110（110 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 4 PCW 1,2-DIOLEOYL-SN-GLYCERO-3-PHOSPHOCHOLINE × 5	ELECTRON MICROSCOPY cryo-EM buffer pH 6；10 mM ammonium citrate pH 6.0, 100 mM sodium chloride, 0.25 mM TCEP cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.39 Å
8EOI Structure of a human EMC:human Cav1.2 channel complex in GDN detergent Deposited 2022-10-03	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 11 PDB declaration: undecameric	Chain F 11–110（100 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 9Z9 (3beta,14beta,17beta,25R)-3-[4-methoxy-3-(methoxymethyl)butoxy]spirost-5-en × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
8J0N cryo-EM structure of human EMC Deposited 2023-04-11	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 9 PDB declaration: nonameric	Chain F 1–110（110 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.47 Å
8J0O cryo-EM structure of human EMC and VDAC Deposited 2023-04-11	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 10 PDB declaration: decameric	Chain F 1–110（110 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.32 Å
8S9S Structure of the human ER membrane protein complex (EMC) in GDN Deposited 2023-03-30	Different oligomeric state Different ligand/ion Different experimental conditions	Assembly 1 Other combination Heteromer；Protein × 9 PDB declaration: nonameric	Chain 6 1–110（110 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 PCW 1,2-DIOLEOYL-SN-GLYCERO-3-PHOSPHOCHOLINE × 6	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
9C7V Structure of the human BOS:human EMC complex in GDN Deposited 2024-06-11	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 12 PDB declaration: dodecameric	Chain 6 1–110（110 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.60 Å
9ZZ6 The ER membrane protein complex acts as a chaperone to promote voltage-gated calcium channel assembly Deposited 2026-01-06	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 11 PDB declaration: undecameric	Chain F 1–110（110 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5；pH 7.5 adjusted with KOH ( potassium hydroxide). cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.16 Å

9 other PDB entries and 9 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence

UniProt name	EMC6_HUMAN
Isoform	—
PDB entities	6
Chains and sequence ranges	Author chain F； PDBConstruct 1–110； UniProt 1–110

ER membrane protein complex subunit 8

Homo sapiens

UniProt O43402

State in the Current Structure

Assembly	Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Associated Components	Method and Experimental Conditions	Structure Quality
1	Protein heterocomplex Heteromer Protein × 8 PDB declaration: octameric（8） Consistent with protein copy count	Chain H； UniProt 1–210	Not recorded	ER membrane protein complex subunit 1 × 1 （Q8N766） ER membrane protein complex subunit 2 × 1 （Q15006） ER membrane protein complex subunit 3 × 1 （Q9P0I2） ER membrane protein complex subunit 4 × 1 （Q5J8M3） Membrane magnesium transporter 1 × 1 （Q8N4V1） ER membrane protein complex subunit 6 × 1 （Q9BV81） ER membrane protein complex subunit 10 × 1 （Q5UCC4） NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 3	ELECTRON MICROSCOPY cryo-EM buffer：pH 6；10 mM ammonium citrate pH 6.0, 100 mM sodium chloride, 0.25 mM TCEP cryo-EM vitrification conditions：Cryogen ETHANE	Resolution 3.60 Å

Other States of the Same Protein in the Database

Other PDB	Difference from Current Entry 7ADP	Assembly / Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Non-polymers	Method and Experimental Conditions	Structure Quality
6WW7 Structure of the human ER membrane protein complex in a lipid nanodisc Deposited 2020-05-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 9 PDB declaration: nonameric	Chain H 1–210（210 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
7ADO Cryo-EM structure of human ER membrane protein complex in lipid nanodiscs Deposited 2020-09-15	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 10 PDB declaration: decameric	Chain H 1–210（210 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 4 PCW 1,2-DIOLEOYL-SN-GLYCERO-3-PHOSPHOCHOLINE × 5	ELECTRON MICROSCOPY cryo-EM buffer pH 6；10 mM ammonium citrate pH 6.0, 100 mM sodium chloride, 0.25 mM TCEP cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.39 Å
8EOI Structure of a human EMC:human Cav1.2 channel complex in GDN detergent Deposited 2022-10-03	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 11 PDB declaration: undecameric	Chain H 3–210（208 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 9Z9 (3beta,14beta,17beta,25R)-3-[4-methoxy-3-(methoxymethyl)butoxy]spirost-5-en × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
8J0N cryo-EM structure of human EMC Deposited 2023-04-11	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 9 PDB declaration: nonameric	Chain H 1–210（210 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.47 Å
8J0O cryo-EM structure of human EMC and VDAC Deposited 2023-04-11	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 10 PDB declaration: decameric	Chain H 1–210（210 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.32 Å
8S9S Structure of the human ER membrane protein complex (EMC) in GDN Deposited 2023-03-30	Different oligomeric state Different ligand/ion Different experimental conditions	Assembly 1 Other combination Heteromer；Protein × 9 PDB declaration: nonameric	Chain 8 1–210（210 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 PCW 1,2-DIOLEOYL-SN-GLYCERO-3-PHOSPHOCHOLINE × 6	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
9C7V Structure of the human BOS:human EMC complex in GDN Deposited 2024-06-11	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 12 PDB declaration: dodecameric	Chain 8 1–210（210 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.60 Å
9ZZ6 The ER membrane protein complex acts as a chaperone to promote voltage-gated calcium channel assembly Deposited 2026-01-06	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 11 PDB declaration: undecameric	Chain H 1–210（210 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5；pH 7.5 adjusted with KOH ( potassium hydroxide). cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.16 Å

8 other PDB entries and 8 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence

UniProt name	EMC8_HUMAN
Isoform	—
PDB entities	7
Chains and sequence ranges	Author chain H； PDBConstruct 1–210； UniProt 1–210

ER membrane protein complex subunit 10

Homo sapiens

UniProt Q5UCC4

State in the Current Structure

Assembly	Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Associated Components	Method and Experimental Conditions	Structure Quality
1	Protein heterocomplex Heteromer Protein × 8 PDB declaration: octameric（8） Consistent with protein copy count	Chain I； UniProt 2–262	Not recorded	ER membrane protein complex subunit 1 × 1 （Q8N766） ER membrane protein complex subunit 2 × 1 （Q15006） ER membrane protein complex subunit 3 × 1 （Q9P0I2） ER membrane protein complex subunit 4 × 1 （Q5J8M3） Membrane magnesium transporter 1 × 1 （Q8N4V1） ER membrane protein complex subunit 6 × 1 （Q9BV81） ER membrane protein complex subunit 8 × 1 （O43402） NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 3	ELECTRON MICROSCOPY cryo-EM buffer：pH 6；10 mM ammonium citrate pH 6.0, 100 mM sodium chloride, 0.25 mM TCEP cryo-EM vitrification conditions：Cryogen ETHANE	Resolution 3.60 Å

Other States of the Same Protein in the Database

Other PDB	Difference from Current Entry 7ADP	Assembly / Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Non-polymers	Method and Experimental Conditions	Structure Quality
6WW7 Structure of the human ER membrane protein complex in a lipid nanodisc Deposited 2020-05-08	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 9 PDB declaration: nonameric	Chain I 1–262（262 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
6Z3W Human ER membrane protein complex Deposited 2020-05-22	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 9 PDB declaration: nonameric	Chain I 1–262（262 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.40 Å
7ADO Cryo-EM structure of human ER membrane protein complex in lipid nanodiscs Deposited 2020-09-15	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 10 PDB declaration: decameric	Chain I 2–262（261 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 4 PCW 1,2-DIOLEOYL-SN-GLYCERO-3-PHOSPHOCHOLINE × 5	ELECTRON MICROSCOPY cryo-EM buffer pH 6；10 mM ammonium citrate pH 6.0, 100 mM sodium chloride, 0.25 mM TCEP cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.39 Å
8EOI Structure of a human EMC:human Cav1.2 channel complex in GDN detergent Deposited 2022-10-03	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 11 PDB declaration: undecameric	Chain I 50–206（157 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 9Z9 (3beta,14beta,17beta,25R)-3-[4-methoxy-3-(methoxymethyl)butoxy]spirost-5-en × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
8J0N cryo-EM structure of human EMC Deposited 2023-04-11	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 9 PDB declaration: nonameric	Chain J 1–207（207 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.47 Å
8J0O cryo-EM structure of human EMC and VDAC Deposited 2023-04-11	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 10 PDB declaration: decameric	Chain J 1–207（207 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.32 Å
8S9S Structure of the human ER membrane protein complex (EMC) in GDN Deposited 2023-03-30	Different construct Different oligomeric state Different ligand/ion Different experimental conditions	Assembly 1 Other combination Heteromer；Protein × 9 PDB declaration: nonameric	Chain 10 1–262（262 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 PCW 1,2-DIOLEOYL-SN-GLYCERO-3-PHOSPHOCHOLINE × 6	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
9C7V Structure of the human BOS:human EMC complex in GDN Deposited 2024-06-11	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 12 PDB declaration: dodecameric	Chain 10 1–262（262 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.60 Å
9ZZ6 The ER membrane protein complex acts as a chaperone to promote voltage-gated calcium channel assembly Deposited 2026-01-06	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 11 PDB declaration: undecameric	Chain I 1–262（262 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5；pH 7.5 adjusted with KOH ( potassium hydroxide). cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.16 Å

9 other PDB entries and 9 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence

UniProt name	EMC10_HUMAN
Isoform	—
PDB entities	8
Chains and sequence ranges	Author chain I； PDBConstruct 3–263； UniProt 2–262

The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.

SAXS scattering curve SAXS Profile

P(r) Distance Distribution P(r) Distribution

Download Download SAXS (.dat) P(r) (.pr.out) CIF

▼

2. Structure Basics 2. Structure Basics

Entry ID entry_id	7adp
Deposition date deposition_date	2020-09-15
Structure title title	Cryo-EM structure of human ER membrane protein complex in GDN detergent
Keywords keywords	ER membrane protein, EMC, Membrane protein biogenesis, MEMBRANE PROTEIN; MEMBRANE PROTEIN
Experimental Method method	ELECTRON MICROSCOPY

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3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

Radius of gyration Rg (Guinier) rg_guinier	60.17 Å
Radius of gyration Rg (electron density) rg_electron	60.54 Å
Forward intensity I(0) i0	618102000.00
Molecular weight molecular_weight	212940.0 kDa
Excluded volume excluded_volume	268960 Å³
Envelope volume envelope_volume	419760 Å³
Hydration-shell volume shell_volume	64392 Å³
Envelope diameter envelope_diameter	203.9 Å
Shell Rg shell_rg	52.36 Å
Envelope Rg envelope_rg	58.67 Å
Shape Rg shape_rg	60.55 Å
Total Rg total_rg	60.24 Å
Total atoms total_atoms	15026
Residues n_residues	1880
Spherical-harmonic order n_harmonics	20
q range q_range	— – 0.5000 Å⁻¹
Data points n_points	101
Shell type shell_type	directional
Solvent electron density solvent_density	0.3340 e/Å³
Shell contrast contrast_shell	0.0300 e/Å³
CRYSOL version crysol_version	4.1.3

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4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

Maximum dimension Dmax dmax	191.2 Å
Rg (real space) rg_real	60.90 Å
Rg uncertainty (real space) rg_real_error	2.02 Å
I(0) (real space) i0_real	6.1810e+08
I(0) uncertainty (real space) i0_real_error	1.2370e+07
Rg (reciprocal space) rg_reciprocal	59.47 Å
I(0) (reciprocal space) i0_reciprocal	616600000.0000
Solution quality estimate total_estimate	0.7495
Solution quality rating solution_quality	REASONABLE a REASONABLE solution
P(r) peaks n_peaks	3
Primary peak position r_peak_primary	44.1 Å
Skewness Skewness skewness	0.425
Kurtosis Kurtosis kurtosis	-0.778
Angular range angular_range	— – 0.1300 Å⁻¹
Current regularization parameter α current_alpha	0.0000
Highest regularization parameter α highest_alpha	40340000.0000
Real-space data points n_real_points	27
GNOM version gnom_version	4.1.3
Quality Criteria quality_criteria	AN1: 0.000; Oscil: 0.655; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.762; Smooth: 0.013

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5. Crystallography and Experiment 5. Crystallography & Experiment

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6. Entities and Polymers Entities & Polymers (9)

Entity 1 Entity 1 polymer

Description description	ER membrane protein complex subunit 1
Molecular weight formula_weight	111886.1 kDa
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A
Atom count atom_count	15026

MAAEWASRFWLWATLLIPAAAVYEDQVGKFDWRQQYVGKVKFASLEFSPGSKKLVVATEKNVIAALNSRTGEILWRHVDKGTAEGAVDAMLLHGQDVITVSNGGRIMRSWETNIGGLNWEITLDSGSFQALGLVGLQESVRYIAVLKKTTLALHHLSSGHLKWVEHLPESDSIHYQMVYSYGSGVVWALGVVPFSHVNIVKFNVEDGEIVQQVRVSTPWLQHLSGACGVVDEAVLVCPDPSSRSLQTLALETEWELRQIPLQSLDLEFGSGFQPRVLPTQPNPVDASRAQFFLHLSPSHYALLQYHYGTLSLLKNFPQTALVSFATTGEKTVAAVMACRNEVQKSSSSEDGSMGSFSEKSSSKDSLACFNQTYTINLYLVETGRRLLDTTITFSLEQSGTRPERLYIQVFLKKDDSVGYRALVQTEDHLLLFLQQLAGKVVLWSREESLAEVVCLEMVDLPLTGAQAELEGEFGKKADGLLGMFLKRLSSQLILLQAWTSHLWKMFYDARKPRSQIKNEINIDTLARDEFNLQKMMVMVTASGKLFGIESSSGTILWKQYLPNVKPDSSFKLMVQRTTAHFPHPPQCTLLVKDKESGMSSLYVFNPIFGKWSQVAPPVLKRPILQSLLLPVMDQDYAKVLLLIDDEYKVTAFPATRNVLRQLHELAPSIFFYLVDAEQGRLCGYRLRKDLTTELSWELTIPPEVQRIVKVKGKRSSEHVHSQGRVMGDRSVLYKSLNPNLLAVVTESTDAHHERTFIGIFLIDGVTGRIIHSSVQKKAKGPVHIVHSENWVVYQYWNTKARRNEFTVLELYEGTEQYNATAFSSLDRPQLPQVLQQSYIFPSSISAMEATITERGITSRHLLIGLPSGAILSLPKALLDPRRPEIPTEQSREENLIPYSPDVQIHAERFINYNQTVSRMRGIYTAPSGLESTCLVVAYGLDIYQTRVYPSKQFDVLKDDYDYVLISSVLFGLVFATMITKRLAQVKLLNRAWR

来源 Source

来源生物 organism	Homo sapiens
通用名 common_name	Human
NCBI Class编号 ncbi_taxonomy_id	9606
宿主生物 host_organism	Homo sapiens

Entity 2 Entity 2 polymer

Description description	ER membrane protein complex subunit 2
Molecular weight formula_weight	34882.5 kDa
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	B

MAKVSELYDVTWEEMRDKMRKWREENSRNSEQIVEVGEELINEYASKLGDDIWIIYEQVMIAALDYGRDDLALFCLQELRRQFPGSHRVKRLTGMRFEAMERYDDAIQLYDRILQEDPTNTAARKRKIAIRKAQGKNVEAIRELNEYLEQFVGDQEAWHELAELYINEHDYAKAAFCLEELMMTNPHNHLYCQQYAEVKYTQGGLENLELSRKYFAQALKLNNRNMRALFGLYMSASHIASNPKASAKTKKDNMKYASWAASQINRAYQFAGRSKKETKYSLKAVEDMLETLQITQS

来源 Source

来源生物 organism	Homo sapiens
通用名 common_name	Human
NCBI Class编号 ncbi_taxonomy_id	9606
宿主生物 host_organism	Homo sapiens

Entity 3 Entity 3 polymer

Description description	ER membrane protein complex subunit 3
Molecular weight formula_weight	29981.9 kDa
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	C

MAGPELLLDSNIRLWVVLPIVIITFFVGMIRHYVSILLQSDKKLTQEQVSDSQVLIRSRVLRENGKYIPKQSFLTRKYYFNNPEDGFFKKTKRKVVPPSPMTDPTMLTDMMKGNVTNVLPMILIGGWINMTFSGFVTTKVPFPLTLRFKPMLQQGIELLTLDASWVSSASWYFLNVFGLRSIYSLILGQDNAADQSRMMQEQMTGAAMAMPADTNKAFKTEWEALELTDHQWALDDVEEELMAKDLHFEGMFKKELQTSIF

来源 Source

来源生物 organism	Homo sapiens
通用名 common_name	Human
NCBI Class编号 ncbi_taxonomy_id	9606
宿主生物 host_organism	Homo sapiens

Entity 4 Entity 4 polymer

Description description	ER membrane protein complex subunit 4
Molecular weight formula_weight	20104.6 kDa
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	D

MTAQGGLVANRGRRFKWAIELSGPGGGSRGRSDRGSGQGDSLYPVGYLDKQVPDTSVQETDRILVEKRCWDIALGPLKQIPMNLFIMYMAGNTISIFPTMMVCMMAWRPIQALMAISATFKMLESSSQKFLQGLVYLIGNLMGLALAVYKCQSMGLLPTHASDWLAFIEPPERMEFSGGGLLL

来源 Source

来源生物 organism	Homo sapiens
通用名 common_name	Human
NCBI Class编号 ncbi_taxonomy_id	9606
宿主生物 host_organism	Homo sapiens

Entity 5 Entity 5 polymer

Description description	Membrane magnesium transporter 1
Molecular weight formula_weight	15703.8 kDa
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	E

MAPSLWKGLVGIGLFALAHAAFSAAQHRSYMRLTEKEDESLPIDIVLQTLLAFAVTCYGIVHIAGEFKDMDATSELKNKTFDTLRNHPSFYVFNHRGRVLFRPSDTANSSNQDALSSNTSLKLRKLESLRRDYKDDDDK

来源 Source

来源生物 organism	Homo sapiens
通用名 common_name	Human
NCBI Class编号 ncbi_taxonomy_id	9606
宿主生物 host_organism	Homo sapiens

Entity 6 Entity 6 polymer

Description description	ER membrane protein complex subunit 6
Molecular weight formula_weight	12029.2 kDa
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	F

MAAVVAKREGPPFISEAAVRGNAAVLDYCRTSVSALSGATAGILGLTGLYGFIFYLLASVLLSLLLILKAGRRWNKYFKSRRPLFTGGLIGGLFTYVLFWTFLYGMVHVY

来源 Source

来源生物 organism	Homo sapiens
通用名 common_name	Human
NCBI Class编号 ncbi_taxonomy_id	9606
宿主生物 host_organism	Homo sapiens

Entity 7 Entity 7 polymer

Description description	ER membrane protein complex subunit 8
Molecular weight formula_weight	23807.1 kDa
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	H

MPGVKLTTQAYCKMVLHGAKYPHCAVNGLLVAEKQKPRKEHLPLGGPGAHHTLFVDCIPLFHGTLALAPMLEVALTLIDSWCKDHSYVIAGYYQANERVKDASPNQVAEKVASRIAEGFSDTALIMVDNTKFTMDCVAPTIHVYEHHENRWRCRDPHHDYCEDWPEAQRISASLLDSRSYETLVDFDNHLDDIRNDWTNPEINKAVLHLC

来源 Source

来源生物 organism	Homo sapiens
通用名 common_name	Human
NCBI Class编号 ncbi_taxonomy_id	9606
宿主生物 host_organism	Homo sapiens

Entity 8 Entity 8 polymer

Description description	ER membrane protein complex subunit 10
Molecular weight formula_weight	27446.9 kDa
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	I

MAAAASAGATRLLLLLLMAVAAPSRARGSGCRAGTGARGAGAEGREGEACGTVGLLLEHSFEIDDSANFRKRGSLLWNQQDGTLSLSQRQLSEEERGRLRDVAALNGLYRVRIPRRPGALDGLEAGGYVSSFVPACSLVESHLSDQLTLHVDVAGNVVGVSVVTHPGGCRGHEVEDVDLELFNTSVQLQPPTTAPGPETAAFIERLEMEQAQKAKNPQEQKSFFAKYWMYIIPVVLFLMMSGAPDTGGQGGGGGGGGGGGSGR

来源 Source

来源生物 organism	Homo sapiens
通用名 common_name	Human
NCBI Class编号 ncbi_taxonomy_id	9606
宿主生物 host_organism	Homo sapiens

Entity 9 Entity 9 non-polymer

Description description	2-acetamido-2-deoxy-beta-D-glucopyranose
Molecular weight formula_weight	221.2 kDa
Source method src_method	syn
Copy count entity_count	3

▶

8. Citations (1)

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Unit-cell length a length_a	1.000 Å
Unit-cell length b length_b	1.000 Å
Unit-cell length c length_c	1.000 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	90.00 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	—

Space group space_group	P 1
Space-group number int_tables_number	1
Crystal system crystal_system	—

Resolution resolution	3.60 Å
Resolution测定方法 resolution_method	—
颗粒数 num_particles	144222

fit	/app/data/saxs_computation/ad/7adp/7adp.fit
pddf	/app/data/pr_computation/ad/7adp/7adp.pr.out
profile	/app/data/saxs_computation/ad/7adp/7adp.dat

Cryo-EM structure of human ER membrane protein complex in GDN detergent

1. Protein Identity and Related Structures Protein Identity & Related Structures

ER membrane protein complex subunit 1

State in the Current Structure

Other States of the Same Protein in the Database

ER membrane protein complex subunit 2

State in the Current Structure

Other States of the Same Protein in the Database

ER membrane protein complex subunit 3

State in the Current Structure

Other States of the Same Protein in the Database

ER membrane protein complex subunit 4

State in the Current Structure

Other States of the Same Protein in the Database

Membrane magnesium transporter 1

State in the Current Structure

Other States of the Same Protein in the Database

ER membrane protein complex subunit 6

State in the Current Structure

Other States of the Same Protein in the Database

ER membrane protein complex subunit 8

State in the Current Structure

Other States of the Same Protein in the Database

ER membrane protein complex subunit 10

State in the Current Structure

Other States of the Same Protein in the Database

SAXS scattering curve SAXS Profile

P(r) Distance Distribution P(r) Distribution

2. Structure Basics 2. Structure Basics

3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

5. Crystallography and Experiment 5. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

冷冻电镜 EM 3D

6. Entities and Polymers Entities & Polymers (9)

Entity 1 Entity 1 polymer

Polymer Polymer

来源 Source

Entity 2 Entity 2 polymer

Polymer Polymer

来源 Source

Entity 3 Entity 3 polymer

Polymer Polymer

来源 Source

Entity 4 Entity 4 polymer

Polymer Polymer

来源 Source

Entity 5 Entity 5 polymer

Polymer Polymer

来源 Source

Entity 6 Entity 6 polymer

Polymer Polymer

来源 Source

Entity 7 Entity 7 polymer

Polymer Polymer

来源 Source

Entity 8 Entity 8 polymer

Polymer Polymer

来源 Source

Entity 9 Entity 9 non-polymer

8. Citations (1)

9. Files and Curves (10)

Files (7)

Curves (3)