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1cyc

THE CRYSTAL STRUCTURE OF BONITO (KATSUO) FERROCYTOCHROME C AT 2.3 ANGSTROMS RESOLUTION. II. STRUCTURE AND FUNCTION

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

FERROCYTOCHROME C

Katsuwonus pelamis

UniProt P00025

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein monomer Monomer Protein 1 HEME C × 1 water × 1 Consistent with protein count
2 Protein monomer Monomer Protein 1 HEME C × 1 Consistent with protein count

Other States of the Same Protein in the Database

Monomer
1cyc 1cyc

2 assemblies

Homodimer

None

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex

None

View Construct and Data Evidence
UniProt name CYC_KATPE
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 1–103； UniProt 1–103 Author chain B； PDBConstruct 1–103； UniProt 1–103

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_id1cyc
Deposition date deposition_date1976-08-01
Structure title titleTHE CRYSTAL STRUCTURE OF BONITO (KATSUO) FERROCYTOCHROME C AT 2.3 ANGSTROMS RESOLUTION. II. STRUCTURE AND FUNCTION
Keywords keywordsELECTRON TRANSPORT; ELECTRON TRANSPORT
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.

1cyc__assembly_1__model_1

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

Download this curve (.dat)

1cyc__assembly_1__model_1 | I(q)

10-2 10-1 105 106 q (1/Angstrom) I(q)
100 plotted points; both axes use logarithmic scales.

1cyc__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）14.11 Å
Rg (electron density)12.69 Å
Total Rg14.17 Å
Atom count838
Residues103
Excluded volume15036 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 1cyc__assembly_1__model_1 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
2 1 1cyc__assembly_2__model_1 monomeric （1） 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 (3)

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6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd1cyca_
Class classa — All alpha proteins
Fold Fold folda.3 — Cytochrome c
Superfamily Superfamily superfamilya.3.1 — Cytochrome c
Family Family familya.3.1.1 — monodomain cytochrome c
Domain ID domain_idd1cycb_
Class classa — All alpha proteins
Fold Fold folda.3 — Cytochrome c
Superfamily Superfamily superfamilya.3.1 — Cytochrome c
Family Family familya.3.1.1 — monodomain cytochrome c

CATH v4.4 (2 domains)

Domain ID domain_id1cycA00
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology760 — Cytochrome Bc1 Complex; Chain D, domain 2
Homologous superfamily homologous superfamily10 — Cytochrome c-like domain
Domain ID domain_id1cycB00
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology760 — Cytochrome Bc1 Complex; Chain D, domain 2
Homologous superfamily homologous superfamily10 — Cytochrome c-like domain
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7. Citations (7)