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Protein Structures and Oligomeric States

Enter a protein name, UniProt accession or PDB ID. Name searches ask you to confirm the protein identity before related structures are queried.

Current Protein Identity：Q5UCC4 New Search
10PDB entries
10Biological assembly
10chain/assembly records
Main Difference Dimensions in This Set
Different construct Different assembly state Different ligand/ion Different experimental conditions Different structure-quality metrics

Difference tags compare only the current result set; every original PDB and assembly record remains separate.

Related-Structure Differences

Each row represents one biological assembly in one PDB entry; multiple monomers of the same protein are listed separately.

PDB Entry Assembly / Oligomeric State Construct Mutations and Modifications Ligands, Ions and Non-polymers Experimental Method Experimental Conditions Structure Quality
6WW7 Structure of the human ER membrane protein complex in a lipid nanodisc Deposited 2020-05-08 Assembly 1 Other combination Heteromer；Protein × 9 PDB declaration: nonameric（9） Consistent with protein count
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 Assembly 1 Protein heterocomplex Heteromer；Protein × 9 PDB declaration: nonameric（9） Consistent with protein count
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 Assembly 1 Protein heterocomplex Heteromer；Protein × 10 PDB declaration: decameric（10） Consistent with protein count
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
7ADP Cryo-EM structure of human ER membrane protein complex in GDN detergent Deposited 2020-09-15 Assembly 1 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric（8） Consistent with protein count
Chain I 2–262（261 aa）
Not recorded 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
8EOI Structure of a human EMC:human Cav1.2 channel complex in GDN detergent Deposited 2022-10-03 Assembly 1 Other combination Heteromer；Protein × 11 PDB declaration: undecameric（11） Consistent with protein count
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 Assembly 1 Other combination Heteromer；Protein × 9 PDB declaration: nonameric（9） Consistent with protein count
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 Assembly 1 Other combination Heteromer；Protein × 10 PDB declaration: decameric（10） Consistent with protein count
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 Assembly 1 Other combination Heteromer；Protein × 9 PDB declaration: nonameric（9） Consistent with protein count
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 Assembly 1 Other combination Heteromer；Protein × 12 PDB declaration: dodecameric（12） Consistent with protein count
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 Assembly 1 Other combination Heteromer；Protein × 11 PDB declaration: undecameric（11） Consistent with protein count
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

This page presents structural evidence recorded in PDB/mmCIF.“No recorded non-water small molecule” does not prove that the experimental sample was ligand-free; experimental conditions belong to the PDB experiment, while ligands and copy counts are shown for each biological assembly.