8eoi

Structure of a human EMC:human Cav1.2 channel complex in GDN detergent

Method: ELECTRON MICROSCOPY
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1. Protein Identity and Related Structures Protein Identity & Related Structures

ER membrane protein complex subunit 1

Homo sapiens

UniProt Q8N766

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Other combination Heteromer Protein 11 其他Polymer 3 ER membrane protein complex subunit 2 × 1 (Q15006) ER membrane protein complex subunit 3 × 1 (Q9P0I2) ER membrane protein complex subunit 5 × 1 (Q8N4V1) ER membrane protein complex subunit 6 × 1 (Q9BV81) ER membrane protein complex subunit 7 × 1 (Q9NPA0) ER membrane protein complex subunit 8 × 1 (O43402) ER membrane protein complex subunit 10 × 1 (Q5UCC4) Voltage-dependent L-type calcium channel subunit alpha-1C × 1 (Q13936) Voltage-dependent L-type calcium channel subunit beta-3 × 1 (P54286) ER membrane protein complex subunit 4 × 1 (Q5J8M3) 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose × 3 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 (3beta,14beta,17beta,25R)-3-[4-methoxy-3-(methoxymethyl)butoxy]spirost-5-en × 1 Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name EMC1_HUMAN
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–973; UniProt 21–993

ER membrane protein complex subunit 2

Homo sapiens

UniProt Q15006

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Other combination Heteromer Protein 11 其他Polymer 3 ER membrane protein complex subunit 1 × 1 (Q8N766) ER membrane protein complex subunit 3 × 1 (Q9P0I2) ER membrane protein complex subunit 5 × 1 (Q8N4V1) ER membrane protein complex subunit 6 × 1 (Q9BV81) ER membrane protein complex subunit 7 × 1 (Q9NPA0) ER membrane protein complex subunit 8 × 1 (O43402) ER membrane protein complex subunit 10 × 1 (Q5UCC4) Voltage-dependent L-type calcium channel subunit alpha-1C × 1 (Q13936) Voltage-dependent L-type calcium channel subunit beta-3 × 1 (P54286) ER membrane protein complex subunit 4 × 1 (Q5J8M3) 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose × 3 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 (3beta,14beta,17beta,25R)-3-[4-methoxy-3-(methoxymethyl)butoxy]spirost-5-en × 1 Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name EMC2_HUMAN
Isoform —
PDB entities 2
Chains and sequence ranges Author chain B; PDBConstruct 1–291; UniProt 3–293

ER membrane protein complex subunit 3

Homo sapiens

UniProt Q9P0I2

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Other combination Heteromer Protein 11 其他Polymer 3 ER membrane protein complex subunit 1 × 1 (Q8N766) ER membrane protein complex subunit 2 × 1 (Q15006) ER membrane protein complex subunit 5 × 1 (Q8N4V1) ER membrane protein complex subunit 6 × 1 (Q9BV81) ER membrane protein complex subunit 7 × 1 (Q9NPA0) ER membrane protein complex subunit 8 × 1 (O43402) ER membrane protein complex subunit 10 × 1 (Q5UCC4) Voltage-dependent L-type calcium channel subunit alpha-1C × 1 (Q13936) Voltage-dependent L-type calcium channel subunit beta-3 × 1 (P54286) ER membrane protein complex subunit 4 × 1 (Q5J8M3) 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose × 3 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 (3beta,14beta,17beta,25R)-3-[4-methoxy-3-(methoxymethyl)butoxy]spirost-5-en × 1 Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name EMC3_HUMAN
Isoform —
PDB entities 3
Chains and sequence ranges Author chain C; PDBConstruct 1–258; UniProt 4–261

ER membrane protein complex subunit 5

Homo sapiens

UniProt Q8N4V1

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Other combination Heteromer Protein 11 其他Polymer 3 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 6 × 1 (Q9BV81) ER membrane protein complex subunit 7 × 1 (Q9NPA0) ER membrane protein complex subunit 8 × 1 (O43402) ER membrane protein complex subunit 10 × 1 (Q5UCC4) Voltage-dependent L-type calcium channel subunit alpha-1C × 1 (Q13936) Voltage-dependent L-type calcium channel subunit beta-3 × 1 (P54286) ER membrane protein complex subunit 4 × 1 (Q5J8M3) 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose × 3 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 (3beta,14beta,17beta,25R)-3-[4-methoxy-3-(methoxymethyl)butoxy]spirost-5-en × 1 Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name EMC5_HUMAN
Isoform —
PDB entities 4
Chains and sequence ranges Author chain E; PDBConstruct 1–101; UniProt 3–103

ER membrane protein complex subunit 6

Homo sapiens

UniProt Q9BV81

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Other combination Heteromer Protein 11 其他Polymer 3 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 5 × 1 (Q8N4V1) ER membrane protein complex subunit 7 × 1 (Q9NPA0) ER membrane protein complex subunit 8 × 1 (O43402) ER membrane protein complex subunit 10 × 1 (Q5UCC4) Voltage-dependent L-type calcium channel subunit alpha-1C × 1 (Q13936) Voltage-dependent L-type calcium channel subunit beta-3 × 1 (P54286) ER membrane protein complex subunit 4 × 1 (Q5J8M3) 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose × 3 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 (3beta,14beta,17beta,25R)-3-[4-methoxy-3-(methoxymethyl)butoxy]spirost-5-en × 1 Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name EMC6_HUMAN
Isoform —
PDB entities 5
Chains and sequence ranges Author chain F; PDBConstruct 1–100; UniProt 11–110

ER membrane protein complex subunit 7

Homo sapiens

UniProt Q9NPA0

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Other combination Heteromer Protein 11 其他Polymer 3 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 5 × 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) Voltage-dependent L-type calcium channel subunit alpha-1C × 1 (Q13936) Voltage-dependent L-type calcium channel subunit beta-3 × 1 (P54286) ER membrane protein complex subunit 4 × 1 (Q5J8M3) 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose × 3 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 (3beta,14beta,17beta,25R)-3-[4-methoxy-3-(methoxymethyl)butoxy]spirost-5-en × 1 Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name EMC7_HUMAN
Isoform —
PDB entities 6
Chains and sequence ranges Author chain G; PDBConstruct 1–116; UniProt 43–158

ER membrane protein complex subunit 8

Homo sapiens

UniProt O43402

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Other combination Heteromer Protein 11 其他Polymer 3 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 5 × 1 (Q8N4V1) ER membrane protein complex subunit 6 × 1 (Q9BV81) ER membrane protein complex subunit 7 × 1 (Q9NPA0) ER membrane protein complex subunit 10 × 1 (Q5UCC4) Voltage-dependent L-type calcium channel subunit alpha-1C × 1 (Q13936) Voltage-dependent L-type calcium channel subunit beta-3 × 1 (P54286) ER membrane protein complex subunit 4 × 1 (Q5J8M3) 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose × 3 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 (3beta,14beta,17beta,25R)-3-[4-methoxy-3-(methoxymethyl)butoxy]spirost-5-en × 1 Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name EMC8_HUMAN
Isoform —
PDB entities 7
Chains and sequence ranges Author chain H; PDBConstruct 1–208; UniProt 3–210

ER membrane protein complex subunit 10

Homo sapiens

UniProt Q5UCC4

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Other combination Heteromer Protein 11 其他Polymer 3 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 5 × 1 (Q8N4V1) ER membrane protein complex subunit 6 × 1 (Q9BV81) ER membrane protein complex subunit 7 × 1 (Q9NPA0) ER membrane protein complex subunit 8 × 1 (O43402) Voltage-dependent L-type calcium channel subunit alpha-1C × 1 (Q13936) Voltage-dependent L-type calcium channel subunit beta-3 × 1 (P54286) ER membrane protein complex subunit 4 × 1 (Q5J8M3) 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose × 3 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 (3beta,14beta,17beta,25R)-3-[4-methoxy-3-(methoxymethyl)butoxy]spirost-5-en × 1 Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name EMC10_HUMAN
Isoform —
PDB entities 8
Chains and sequence ranges Author chain I; PDBConstruct 1–157; UniProt 50–206

Voltage-dependent L-type calcium channel subunit alpha-1C

Homo sapiens

UniProt Q13936

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Other combination Heteromer Protein 11 其他Polymer 3 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 5 × 1 (Q8N4V1) ER membrane protein complex subunit 6 × 1 (Q9BV81) ER membrane protein complex subunit 7 × 1 (Q9NPA0) ER membrane protein complex subunit 8 × 1 (O43402) ER membrane protein complex subunit 10 × 1 (Q5UCC4) Voltage-dependent L-type calcium channel subunit beta-3 × 1 (P54286) ER membrane protein complex subunit 4 × 1 (Q5J8M3) 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose × 3 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 (3beta,14beta,17beta,25R)-3-[4-methoxy-3-(methoxymethyl)butoxy]spirost-5-en × 1 Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name CAC1C_HUMAN
Isoform —
PDB entities 9
Chains and sequence ranges Author chain K; PDBConstruct 1–1550; UniProt 109–1658

Voltage-dependent L-type calcium channel subunit beta-3

Oryctolagus cuniculus

UniProt P54286

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Other combination Heteromer Protein 11 其他Polymer 3 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 5 × 1 (Q8N4V1) ER membrane protein complex subunit 6 × 1 (Q9BV81) ER membrane protein complex subunit 7 × 1 (Q9NPA0) ER membrane protein complex subunit 8 × 1 (O43402) ER membrane protein complex subunit 10 × 1 (Q5UCC4) Voltage-dependent L-type calcium channel subunit alpha-1C × 1 (Q13936) ER membrane protein complex subunit 4 × 1 (Q5J8M3) 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose × 3 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 (3beta,14beta,17beta,25R)-3-[4-methoxy-3-(methoxymethyl)butoxy]spirost-5-en × 1 Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name CACB3_RABIT
Isoform —
PDB entities 10
Chains and sequence ranges Author chain J; PDBConstruct 1–324; UniProt 38–361

ER membrane protein complex subunit 4

Homo sapiens

UniProt Q5J8M3

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Other combination Heteromer Protein 11 其他Polymer 3 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 5 × 1 (Q8N4V1) ER membrane protein complex subunit 6 × 1 (Q9BV81) ER membrane protein complex subunit 7 × 1 (Q9NPA0) ER membrane protein complex subunit 8 × 1 (O43402) ER membrane protein complex subunit 10 × 1 (Q5UCC4) Voltage-dependent L-type calcium channel subunit alpha-1C × 1 (Q13936) Voltage-dependent L-type calcium channel subunit beta-3 × 1 (P54286) 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose × 3 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 (3beta,14beta,17beta,25R)-3-[4-methoxy-3-(methoxymethyl)butoxy]spirost-5-en × 1 Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name EMC4_HUMAN
Isoform —
PDB entities 11
Chains and sequence ranges Author chain D; PDBConstruct 1–170; UniProt 14–183

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.

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2. Structure Basics 2. Structure Basics

Entry ID entry_id8eoi
Deposition date deposition_date2022-10-03
Structure title titleStructure of a human EMC:human Cav1.2 channel complex in GDN detergent
Keywords keywordsendoplasmic reticulum membrane protein complex, voltage-gated calcium channel, holdase, biogenesis, MEMBRANE PROTEIN; MEMBRANE PROTEIN
Experimental Method methodELECTRON MICROSCOPY
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3. Official assembly/model SAXS Official SAXS Profiles

This page reads only the latest assembly calculations. Every curve maps to an explicit PDB entry, official biological assembly and coordinate model.

8eoi__assembly_1__model_1

Assembly 1 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

8eoi__assembly_1__model_1 | I(q)

10-2 10-1 106 107 108 109 q (1/Angstrom) I(q)
100 plotted points; both axes use logarithmic scales.

8eoi__assembly_1__model_1 | P(r) · Pending

The new assembly/model P(r) has not been calculated yet This placeholder does not display legacy data r (Angstrom) P(r)
P(r) will be calculated and displayed separately for the same assembly/model.
Rg(Guinier)64.63 Å
Rg (electron density)64.02 Å
Total Rg63.93 Å
Atom count28721
Residues3562
Excluded volume516870 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 8eoi__assembly_1__model_1 undecameric (11) Success 4.1.3-1-20251215 (887e7ef) View Download
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4. Crystallography and Experiment 4. Crystallography & Experiment

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5. Entities and Polymers Entities & Polymers (14)

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6. Fold Classification (SCOP + CATH) 3 domains

CATH v4.4 (3 domains)

Domain ID domain_id8eoiJ01
Class class2 — Mainly Beta
Architecture architecture30 — Roll
Topology topology30 — SH3 type barrels.
Homologous superfamily homologous superfamily40 — SH3 Domains
Domain ID domain_id8eoiJ02
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily300 — P-loop containing nucleotide triphosphate hydrolases
Domain ID domain_id8eoiK01
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology120 — Four Helix Bundle (Hemerythrin (Met), subunit A)
Homologous superfamily homologous superfamily350 — Voltage-gated potassium channels. Chain C
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7. Citations (1)