SAXSdb — 19hc

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

PROTEIN (NINE-HAEM CYTOCHROME C)

OrganismNot specified

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 2	ACETATE ION × 5 PROTOPORPHYRIN IX CONTAINING FE × 18 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	CYC9_DESDE
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–292； UniProt 31–322 Author chain B； PDBConstruct 1–292； UniProt 31–322

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_id	19hc
Deposition date deposition_date	1998-12-01
Structure title title	NINE-HAEM CYTOCHROME C FROM DESULFOVIBRIO DESULFURICANS ATCC 27774
Keywords keywords	ELECTRON TRANSFER, CYTOCHROME, ELECTRON TRANSPORT; ELECTRON TRANSPORT
Experimental Method method	X-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.

19hc__assembly_1__model_1

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

Download this curve (.dat)

19hc__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

19hc__assembly_1__model_1 | P(r) · Pending

P(r) will be calculated and displayed separately for the same assembly/model.

Rg（Guinier）	27.89 Å
Rg (electron density)	26.97 Å
Total Rg	27.81 Å
Atom count	5136
Residues	584
Excluded volume	91261 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`19hc__assembly_1__model_1`	dimeric （2）	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 (4)

Entity 1 Entity 1 polymer

Description description	PROTEIN (NINE-HAEM CYTOCHROME C)
Molecular weight formula_weight	31290.7 kDa
Source method src_method	nat
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B
Atom count atom_count	6098

AALEPTDSGAPSAIVMFPVGEKPNPKGAAMKPVVFNHLIHEKKIADCETCHHTGDPVSCSTCHTVEGKAEGDYITLDRAMHATDIAARAKGNTPTSCVSCHQSETKERRECAGCHAITTPKDDEAWCATCHDITPSMTPSEMQKGIAGTLLPGDNEALAAETVLAEATVAPVSPMLAPYKVVIDALADKYEPSDFTHRRHLTSLMESIKDDKLAQAFHDKPEILCATCHHRSPLSLTPPKCGSCHTKEIDAADPGRPNLMAAYHLECMGCHKGMAVARPRDTDCTTCHKAAA

Entity 2 Entity 2 non-polymer

Description description	ACETATE ION
Molecular weight formula_weight	59.0 kDa
Source method src_method	syn
Copy count entity_count	5

Entity 3 Entity 3 non-polymer

Description description	PROTOPORPHYRIN IX CONTAINING FE
Molecular weight formula_weight	616.5 kDa
Source method src_method	syn
Copy count entity_count	18

Entity 4 Entity 4 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	885

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6. Fold Classification (SCOP + CATH) 6 domains

SCOP 2.08 (2 domains)

Domain ID domain_id	d19hca_
Class class	a — All alpha proteins
Fold Fold fold	a.138 — Multiheme cytochromes
Superfamily Superfamily superfamily	a.138.1 — Multiheme cytochromes
Family Family family	a.138.1.1 — Cytochrome c3-like

Domain ID domain_id	d19hcb_
Class class	a — All alpha proteins
Fold Fold fold	a.138 — Multiheme cytochromes
Superfamily Superfamily superfamily	a.138.1 — Multiheme cytochromes
Family Family family	a.138.1.1 — Cytochrome c3-like

CATH v4.4 (4 domains)

Domain ID domain_id	19hcA01
Class class	3 — Alpha Beta
Architecture architecture	90 — Alpha-Beta Complex
Topology topology	10 — Cytochrome C3
Homologous superfamily homologous superfamily	10 — Cytochrome C3

Domain ID domain_id	19hcA02
Class class	3 — Alpha Beta
Architecture architecture	90 — Alpha-Beta Complex
Topology topology	10 — Cytochrome C3
Homologous superfamily homologous superfamily	10 — Cytochrome C3

Domain ID domain_id	19hcB01
Class class	3 — Alpha Beta
Architecture architecture	90 — Alpha-Beta Complex
Topology topology	10 — Cytochrome C3
Homologous superfamily homologous superfamily	10 — Cytochrome C3

Domain ID domain_id	19hcB02
Class class	3 — Alpha Beta
Architecture architecture	90 — Alpha-Beta Complex
Topology topology	10 — Cytochrome C3
Homologous superfamily homologous superfamily	10 — Cytochrome C3

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Unit-cell length a length_a	60.380 Å
Unit-cell length b length_b	106.070 Å
Unit-cell length c length_c	80.620 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	103.50 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	4

Space group space_group	P 1 21 1
Space-group number int_tables_number	4
Crystal system crystal_system	—

Resolution resolution	1.800 Å
Low-resolution limit resolution_low	24.000 Å
R factor r_factor	0.1694
R_work r_work	—
R_free r_free	—

NINE-HAEM CYTOCHROME C FROM DESULFOVIBRIO DESULFURICANS ATCC 27774

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

PROTEIN (NINE-HAEM CYTOCHROME C)

State in the Current Structure

Other States of the Same Protein in the Database

2. Structure Basics 2. Structure Basics

3. Official assembly/model SAXS Official SAXS Profiles

19hc__assembly_1__model_1

19hc__assembly_1__model_1 | I(q)

19hc__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

Diffraction experiment Diffraction

5. Entities and Polymers Entities & Polymers (4)

Entity 1 Entity 1 polymer

Polymer Polymer

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 water

6. Fold Classification (SCOP + CATH) 6 domains

SCOP 2.08 (2 domains)

CATH v4.4 (4 domains)

7. Citations (1)

NINE-HAEM CYTOCHROME C FROM DESULFOVIBRIO DESULFURICANS ATCC 27774

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

PROTEIN (NINE-HAEM CYTOCHROME C)

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

2. Structure Basics 2. Structure Basics

3. Official assembly/model SAXS Official SAXS Profiles

19hc__assembly_1__model_1

19hc__assembly_1__model_1 | I(q)

19hc__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

Diffraction experiment Diffraction

5. Entities and Polymers Entities & Polymers (4)

Entity 1 Entity 1 polymer

Polymer Polymer

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 water

6. Fold Classification (SCOP + CATH) 6 domains

SCOP 2.08 (2 domains)

CATH v4.4 (4 domains)

7. Citations (1)