4c1n

Corrinoid protein reactivation complex with activator

Method: X-RAY DIFFRACTION
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1. Protein Identity and Related Structures Protein Identity & Related Structures

CARBON MONOXIDE DEHYDROGENASE CORRINOID/IRON-SULFUR PROTEIN, GAMMA SUBUNIT

CARBOXYDOTHERMUS HYDROGENOFORMANS

UniProt Q3ACS3

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 3 CO DEHYDROGENASE/ACETYL-COA SYNTHASE, IRON-SULFUR PROTEIN × 1 (Q3ACS0) IRON-SULFUR CLUSTER BINDING PROTEIN × 1 (Q3ACS2) IRON/SULFUR CLUSTER × 1 COBALAMIN × 1 water × 3 Consistent with protein count
2 Protein heterocomplex Heteromer Protein 3 CO DEHYDROGENASE/ACETYL-COA SYNTHASE, IRON-SULFUR PROTEIN × 1 (Q3ACS0) IRON-SULFUR CLUSTER BINDING PROTEIN × 1 (Q3ACS2) IRON/SULFUR CLUSTER × 1 COBALAMIN × 1 water × 3 Consistent with protein count
3 Protein heterocomplex Heteromer Protein 3 CO DEHYDROGENASE/ACETYL-COA SYNTHASE, IRON-SULFUR PROTEIN × 1 (Q3ACS0) IRON-SULFUR CLUSTER BINDING PROTEIN × 1 (Q3ACS2) IRON/SULFUR CLUSTER × 1 COBALAMIN × 1 water × 3 Consistent with protein count
4 Protein heterocomplex Heteromer Protein 3 CO DEHYDROGENASE/ACETYL-COA SYNTHASE, IRON-SULFUR PROTEIN × 1 (Q3ACS0) IRON-SULFUR CLUSTER BINDING PROTEIN × 1 (Q3ACS2) IRON/SULFUR CLUSTER × 1 COBALAMIN × 1 water × 3 Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name Q3ACS3_CARHZ
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–439; UniProt 2–440 Author chain C; PDBConstruct 1–442; UniProt 2–443 Author chain E; PDBConstruct 1–442; UniProt 2–443 Author chain G; PDBConstruct 1–442; UniProt 2–443

CO DEHYDROGENASE/ACETYL-COA SYNTHASE, IRON-SULFUR PROTEIN

CARBOXYDOTHERMUS HYDROGENOFORMANS

UniProt Q3ACS0

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 3 CARBON MONOXIDE DEHYDROGENASE CORRINOID/IRON-SULFUR PROTEIN, GAMMA SUBUNIT × 1 (Q3ACS3) IRON-SULFUR CLUSTER BINDING PROTEIN × 1 (Q3ACS2) IRON/SULFUR CLUSTER × 1 COBALAMIN × 1 water × 3 Consistent with protein count
2 Protein heterocomplex Heteromer Protein 3 CARBON MONOXIDE DEHYDROGENASE CORRINOID/IRON-SULFUR PROTEIN, GAMMA SUBUNIT × 1 (Q3ACS3) IRON-SULFUR CLUSTER BINDING PROTEIN × 1 (Q3ACS2) IRON/SULFUR CLUSTER × 1 COBALAMIN × 1 water × 3 Consistent with protein count
3 Protein heterocomplex Heteromer Protein 3 CARBON MONOXIDE DEHYDROGENASE CORRINOID/IRON-SULFUR PROTEIN, GAMMA SUBUNIT × 1 (Q3ACS3) IRON-SULFUR CLUSTER BINDING PROTEIN × 1 (Q3ACS2) IRON/SULFUR CLUSTER × 1 COBALAMIN × 1 water × 3 Consistent with protein count
4 Protein heterocomplex Heteromer Protein 3 CARBON MONOXIDE DEHYDROGENASE CORRINOID/IRON-SULFUR PROTEIN, GAMMA SUBUNIT × 1 (Q3ACS3) IRON-SULFUR CLUSTER BINDING PROTEIN × 1 (Q3ACS2) IRON/SULFUR CLUSTER × 1 COBALAMIN × 1 water × 3 Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name Q3ACS0_CARHZ
Isoform —
PDB entities 2
Chains and sequence ranges Author chain B; PDBConstruct 1–309; UniProt 2–310 Author chain D; PDBConstruct 1–309; UniProt 2–310 Author chain F; PDBConstruct 1–309; UniProt 2–310 Author chain H; PDBConstruct 1–309; UniProt 2–310

IRON-SULFUR CLUSTER BINDING PROTEIN

CARBOXYDOTHERMUS HYDROGENOFORMANS

UniProt Q3ACS2

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 3 CARBON MONOXIDE DEHYDROGENASE CORRINOID/IRON-SULFUR PROTEIN, GAMMA SUBUNIT × 1 (Q3ACS3) CO DEHYDROGENASE/ACETYL-COA SYNTHASE, IRON-SULFUR PROTEIN × 1 (Q3ACS0) IRON/SULFUR CLUSTER × 1 COBALAMIN × 1 water × 3 Consistent with protein count
2 Protein heterocomplex Heteromer Protein 3 CARBON MONOXIDE DEHYDROGENASE CORRINOID/IRON-SULFUR PROTEIN, GAMMA SUBUNIT × 1 (Q3ACS3) CO DEHYDROGENASE/ACETYL-COA SYNTHASE, IRON-SULFUR PROTEIN × 1 (Q3ACS0) IRON/SULFUR CLUSTER × 1 COBALAMIN × 1 water × 3 Consistent with protein count
3 Protein heterocomplex Heteromer Protein 3 CARBON MONOXIDE DEHYDROGENASE CORRINOID/IRON-SULFUR PROTEIN, GAMMA SUBUNIT × 1 (Q3ACS3) CO DEHYDROGENASE/ACETYL-COA SYNTHASE, IRON-SULFUR PROTEIN × 1 (Q3ACS0) IRON/SULFUR CLUSTER × 1 COBALAMIN × 1 water × 3 Consistent with protein count
4 Protein heterocomplex Heteromer Protein 3 CARBON MONOXIDE DEHYDROGENASE CORRINOID/IRON-SULFUR PROTEIN, GAMMA SUBUNIT × 1 (Q3ACS3) CO DEHYDROGENASE/ACETYL-COA SYNTHASE, IRON-SULFUR PROTEIN × 1 (Q3ACS0) IRON/SULFUR CLUSTER × 1 COBALAMIN × 1 water × 3 Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name Q3ACS2_CARHZ
Isoform —
PDB entities 3, 4
Chains and sequence ranges Author chain I; PDBConstruct 1–509; UniProt 122–630 Author chain J; PDBConstruct 1–509; UniProt 122–630 Author chain X; PDBConstruct 1–509; UniProt 122–630 Author chain K; PDBConstruct 1–510; UniProt 121–630

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_id4c1n
Deposition date deposition_date2013-08-13
Structure title titleCorrinoid protein reactivation complex with activator
Keywords keywordsOXIDOREDUCTASE-METAL BINDING PROTEIN COMPLEX; OXIDOREDUCTASE/METAL BINDING PROTEIN
Experimental Method methodX-RAY DIFFRACTION
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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.

4c1n__assembly_3__model_1

Assembly 3 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

4c1n__assembly_3__model_1 | I(q)

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

4c1n__assembly_3__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)36.38 Å
Rg (electron density)35.87 Å
Total Rg36.19 Å
Atom count9738
Residues1260
Excluded volume175750 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 4c1n__assembly_1__model_1 trimeric (3) Success 4.1.3-1-20251215 (887e7ef) View Download
2 1 4c1n__assembly_2__model_1 trimeric (3) Success 4.1.3-1-20251215 (887e7ef) View Download
3 1 4c1n__assembly_3__model_1 trimeric (3) Success 4.1.3-1-20251215 (887e7ef) View Download
4 1 4c1n__assembly_4__model_1 trimeric (3) 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 (7)

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6. Fold Classification (SCOP + CATH) 24 domains

CATH v4.4 (24 domains)

Domain ID domain_id4c1nA01
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology15 — 3-methyladenine DNA Glycosylase II; Chain A, domain 3
Homologous superfamily homologous superfamily40 — Electron transport complex subunit B, putative Fe-S cluster
Domain ID domain_id4c1nA02
Class class3 — Alpha Beta
Architecture architecture20 — Alpha-Beta Barrel
Topology topology20 — TIM Barrel
Homologous superfamily homologous superfamily20 — Dihydropteroate synthase-like
Domain ID domain_id4c1nA03
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily11600 —
Domain ID domain_id4c1nB01
Class class3 — Alpha Beta
Architecture architecture20 — Alpha-Beta Barrel
Topology topology20 — TIM Barrel
Homologous superfamily homologous superfamily20 — Dihydropteroate synthase-like
Domain ID domain_id4c1nC01
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology15 — 3-methyladenine DNA Glycosylase II; Chain A, domain 3
Homologous superfamily homologous superfamily40 — Electron transport complex subunit B, putative Fe-S cluster
Domain ID domain_id4c1nC02
Class class3 — Alpha Beta
Architecture architecture20 — Alpha-Beta Barrel
Topology topology20 — TIM Barrel
Homologous superfamily homologous superfamily20 — Dihydropteroate synthase-like
Domain ID domain_id4c1nC03
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily11600 —
Domain ID domain_id4c1nD01
Class class3 — Alpha Beta
Architecture architecture20 — Alpha-Beta Barrel
Topology topology20 — TIM Barrel
Homologous superfamily homologous superfamily20 — Dihydropteroate synthase-like
Domain ID domain_id4c1nE01
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology15 — 3-methyladenine DNA Glycosylase II; Chain A, domain 3
Homologous superfamily homologous superfamily40 — Electron transport complex subunit B, putative Fe-S cluster
Domain ID domain_id4c1nE02
Class class3 — Alpha Beta
Architecture architecture20 — Alpha-Beta Barrel
Topology topology20 — TIM Barrel
Homologous superfamily homologous superfamily20 — Dihydropteroate synthase-like
Domain ID domain_id4c1nE03
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily11600 —
Domain ID domain_id4c1nF01
Class class3 — Alpha Beta
Architecture architecture20 — Alpha-Beta Barrel
Topology topology20 — TIM Barrel
Homologous superfamily homologous superfamily20 — Dihydropteroate synthase-like
Domain ID domain_id4c1nG01
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology15 — 3-methyladenine DNA Glycosylase II; Chain A, domain 3
Homologous superfamily homologous superfamily40 — Electron transport complex subunit B, putative Fe-S cluster
Domain ID domain_id4c1nG02
Class class3 — Alpha Beta
Architecture architecture20 — Alpha-Beta Barrel
Topology topology20 — TIM Barrel
Homologous superfamily homologous superfamily20 — Dihydropteroate synthase-like
Domain ID domain_id4c1nG03
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily11600 —
Domain ID domain_id4c1nH01
Class class3 — Alpha Beta
Architecture architecture20 — Alpha-Beta Barrel
Topology topology20 — TIM Barrel
Homologous superfamily homologous superfamily20 — Dihydropteroate synthase-like
Domain ID domain_id4c1nI01
Class class3 — Alpha Beta
Architecture architecture10 — Roll
Topology topology20 — Ubiquitin-like (UB roll)
Homologous superfamily homologous superfamily880 —
Domain ID domain_id4c1nI02
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology420 — Nucleotidyltransferase; domain 5
Homologous superfamily homologous superfamily480 — Domain of unknown function (DUF4445)
Domain ID domain_id4c1nJ01
Class class3 — Alpha Beta
Architecture architecture10 — Roll
Topology topology20 — Ubiquitin-like (UB roll)
Homologous superfamily homologous superfamily880 —
Domain ID domain_id4c1nJ02
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology420 — Nucleotidyltransferase; domain 5
Homologous superfamily homologous superfamily480 — Domain of unknown function (DUF4445)
Domain ID domain_id4c1nK01
Class class3 — Alpha Beta
Architecture architecture10 — Roll
Topology topology20 — Ubiquitin-like (UB roll)
Homologous superfamily homologous superfamily880 —
Domain ID domain_id4c1nK02
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology420 — Nucleotidyltransferase; domain 5
Homologous superfamily homologous superfamily480 — Domain of unknown function (DUF4445)
Domain ID domain_id4c1nX01
Class class3 — Alpha Beta
Architecture architecture10 — Roll
Topology topology20 — Ubiquitin-like (UB roll)
Homologous superfamily homologous superfamily880 —
Domain ID domain_id4c1nX02
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology420 — Nucleotidyltransferase; domain 5
Homologous superfamily homologous superfamily480 — Domain of unknown function (DUF4445)
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7. Citations (1)