1FCD

THE STRUCTURE OF FLAVOCYTOCHROME C SULFIDE DEHYDROGENASE FROM A PURPLE PHOTOTROPHIC BACTERIUM CHROMATIUM VINOSUM AT 2.5 ANGSTROMS RESOLUTION

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1fcda1	Alpha and beta proteins (a/b)	FAD/NAD(P)-binding domain	FAD/NAD(P)-binding domain	FAD/NAD-linked reductases, N-terminal and central domains	Flavocytochrome c sulfide dehydrogenase, FCSD, flavin-binding subunit	(Allochromatium vinosum ) [TaxId: 1049 ],	SCOPe (2.08)
A	d1fcda3	Alpha and beta proteins (a+b)	CO dehydrogenase flavoprotein C-domain-like	FAD/NAD-linked reductases, dimerisation (C-terminal) domain	FAD/NAD-linked reductases, dimerisation (C-terminal) domain	Flavocytochrome c sulfide dehydrogenase, FCSD, flavin-binding subunit	(Allochromatium vinosum ) [TaxId: 1049 ],	SCOPe (2.08)
C [auth B]	d1fcdb1	Alpha and beta proteins (a/b)	FAD/NAD(P)-binding domain	FAD/NAD(P)-binding domain	FAD/NAD-linked reductases, N-terminal and central domains	Flavocytochrome c sulfide dehydrogenase, FCSD, flavin-binding subunit	(Allochromatium vinosum ) [TaxId: 1049 ],	SCOPe (2.08)
C [auth B]	d1fcdb3	Alpha and beta proteins (a+b)	CO dehydrogenase flavoprotein C-domain-like	FAD/NAD-linked reductases, dimerisation (C-terminal) domain	FAD/NAD-linked reductases, dimerisation (C-terminal) domain	Flavocytochrome c sulfide dehydrogenase, FCSD, flavin-binding subunit	(Allochromatium vinosum ) [TaxId: 1049 ],	SCOPe (2.08)
B [auth C]	d1fcdc1	All alpha proteins	Cytochrome c	Cytochrome c	Two-domain cytochrome c	Flavocytochrome c sulfide dehydrogenase, FCSD, cytochrome subunit	(Allochromatium vinosum ) [TaxId: 1049 ],	SCOPe (2.08)
D	d1fcdd1	All alpha proteins	Cytochrome c	Cytochrome c	Two-domain cytochrome c	Flavocytochrome c sulfide dehydrogenase, FCSD, cytochrome subunit	(Allochromatium vinosum ) [TaxId: 1049 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	Flavocytochrome c sulfide dehydrogenase	8001473	4000130	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Thioredoxin reductase-like	8001476	3000050	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	FSCD C-terminal domain-like	8091673	3002534	SCOP2 (2022-06-29)
C [auth B]	SCOP2B Superfamily	Thioredoxin reductase-like	8001476	3000050	SCOP2B (2022-06-29)
C [auth B]	SCOP2B Superfamily	FSCD C-terminal domain-like	8091673	3002534	SCOP2B (2022-06-29)
B [auth C]	SCOP2 Family	Two-domain cytochrome c	8024149	4000660	SCOP2 (2022-06-29)
B [auth C]	SCOP2 Family	Two-domain cytochrome c	8024151	4000660	SCOP2 (2022-06-29)
B [auth C]	SCOP2 Superfamily	Cytochrome c	8036528	3000815	SCOP2 (2022-06-29)
B [auth C]	SCOP2 Superfamily	Cytochrome c	8036530	3000815	SCOP2 (2022-06-29)
D	SCOP2B Superfamily	Cytochrome c	8036530	3000815	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	Cytochrome c	8036528	3000815	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	FCSD-flav_bind	e1fcdA1	A: a+b two layers	X: FAD-linked reductases, C-terminal domain-like	H: FAD/NAD-linked reduatases, dimerisation (C-terminal) domain (From Topology)	T: FAD/NAD-linked reduatases, dimerisation (C-terminal) domain	F: FCSD-flav_bind	ECOD (1.6)
A	FCSD_central	e1fcdA3	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: FAD/NAD(P)-binding domain	F: FCSD_central	ECOD (1.6)
A	Pyr_redox_2	e1fcdA2	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: FAD/NAD(P)-binding domain	F: Pyr_redox_2	ECOD (1.6)
C [auth B]	FCSD-flav_bind	e1fcdB1	A: a+b two layers	X: FAD-linked reductases, C-terminal domain-like	H: FAD/NAD-linked reduatases, dimerisation (C-terminal) domain (From Topology)	T: FAD/NAD-linked reduatases, dimerisation (C-terminal) domain	F: FCSD-flav_bind	ECOD (1.6)
C [auth B]	FCSD_central	e1fcdB3	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: FAD/NAD(P)-binding domain	F: FCSD_central	ECOD (1.6)
C [auth B]	Pyr_redox_2	e1fcdB2	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: FAD/NAD(P)-binding domain	F: Pyr_redox_2	ECOD (1.6)
B [auth C]	Cytochrom_C	e1fcdC1	A: alpha arrays	X: Cytochrome c-like	H: Cytochrome c (From Topology)	T: Cytochrome c	F: Cytochrom_C	ECOD (1.6)
B [auth C]	UNK_F_TYPE	e1fcdC2	A: alpha arrays	X: Cytochrome c-like	H: Cytochrome c (From Topology)	T: Cytochrome c	F: UNK_F_TYPE	ECOD (1.6)
D	Cytochrom_C	e1fcdD1	A: alpha arrays	X: Cytochrome c-like	H: Cytochrome c (From Topology)	T: Cytochrome c	F: Cytochrom_C	ECOD (1.6)
D	UNK_F_TYPE	e1fcdD2	A: alpha arrays	X: Cytochrome c-like	H: Cytochrome c (From Topology)	T: Cytochrome c	F: UNK_F_TYPE	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.50.50.60	Alpha Beta	3-Layer(bba) Sandwich	FAD/NAD(P)-binding domain	FAD/NAD(P)-binding domain	CATH (4.3.0)
A	3.90.760.10	Alpha Beta	Alpha-Beta Complex	Flavocytochrome C Sulfide Dehydrogenase	Chain A Domain 3	CATH (4.3.0)
C [auth B]	3.50.50.60	Alpha Beta	3-Layer(bba) Sandwich	FAD/NAD(P)-binding domain	FAD/NAD(P)-binding domain	CATH (4.3.0)
C [auth B]	3.90.760.10	Alpha Beta	Alpha-Beta Complex	Flavocytochrome C Sulfide Dehydrogenase	Chain A Domain 3	CATH (4.3.0)
B [auth C]	1.10.760.10	Mainly Alpha	Orthogonal Bundle	Cytochrome Bc1 Complex	Chain D, domain 2	CATH (4.3.0)
D	1.10.760.10	Mainly Alpha	Orthogonal Bundle	Cytochrome Bc1 Complex	Chain D, domain 2	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, C [auth B]	PF07992	Pyridine nucleotide-disulphide oxidoreductase (Pyr_redox_2)	Pyridine nucleotide-disulphide oxidoreductase	This family includes both class I and class II oxidoreductases and also NADH oxidases and peroxidases. This domain is actually a small NADH binding domain within a larger FAD binding domain.	Domain
A, C [auth B]	PF21706	Sulfide dehydrogenase [flavocytochrome c] flavoprotein chain, central (FCSD_central)	Sulfide dehydrogenase [flavocytochrome c] flavoprotein chain, central	This domain is located centrally in Sulfide dehydrogenase [flavocytochrome c] flavoprotein chain from the proteobacteria Allochromatium vinosum, a component of the enzyme that catalyses the reversible conversion of sulphide to elemental sulfur in vit ...	This domain is located centrally in Sulfide dehydrogenase [flavocytochrome c] flavoprotein chain from the proteobacteria Allochromatium vinosum, a component of the enzyme that catalyses the reversible conversion of sulphide to elemental sulfur in vitro. This domain is C-terminal to Pfam:PF07992 and N-terminal to Pfam:PF09242. This domain shows a five-stranded parallel beta-sheet flanked on one side by three alpha-helices and on the other side by a three-stranded anti parallel beta-sheet [1].	Domain
A, C [auth B]	PF09242	Flavocytochrome c sulphide dehydrogenase, flavin-binding (FCSD-flav_bind)	Flavocytochrome c sulphide dehydrogenase, flavin-binding	Members of this family adopt a structure consisting of a beta(3,4)-alpha(3) core, and an alpha+beta sandwich. They are required for binding to flavin, and subsequent electron transfer [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, C [auth B]	FLAVOCYTOCHROME C SULFIDE DEHYDROGENASE (FLAVIN-BINDING SUBUNIT)	oxidoreductase activity, acting on a sulfur group of donors oxidoreductase activity, acting on a sulfur group of donors, cytochrome as acceptor oxidoreductase activity sulfide dehydrogenase activity catalytic activity flavin adenine dinucleotide binding binding nucleoside phosphate binding ion binding anion binding nucleotide binding heterocyclic compound binding small molecule binding	-	cellular anatomical structure periplasmic space
B [auth C], D	FLAVOCYTOCHROME C SULFIDE DEHYDROGENASE (CYTOCHROME SUBUNIT)	binding tetrapyrrole binding heme binding electron transfer activity cation binding transition metal ion binding iron ion binding ion binding metal ion binding small molecule binding	-	cellular anatomical structure periplasmic space

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, C [auth B]	IPR052541	Sulfide-quinone oxidoreductase	Family
A, C [auth B]	IPR006311	Twin-arginine translocation pathway, signal sequence	Conserved Site
A, C [auth B]	IPR015323	Flavocytochrome c sulphide dehydrogenase, flavin-binding	Domain
A, C [auth B]	IPR023753	FAD/NAD(P)-binding domain	Domain
A, C [auth B]	IPR016156	FAD/NAD-linked reductase, dimerisation domain superfamily	Homologous Superfamily
A, C [auth B]	IPR049386	Sulfide dehydrogenase [flavocytochrome c] flavoprotein chain, central	Domain
A, C [auth B]	IPR036188	FAD/NAD(P)-binding domain superfamily	Homologous Superfamily
A, C [auth B]	IPR037092	Flavocytochrome c sulphide dehydrogenase, flavin-binding domain superfamily	Homologous Superfamily
A, C [auth B]	IPR019546	Twin-arginine translocation pathway, signal sequence, bacterial/archaeal	Conserved Site
B [auth C], D	IPR036909	Cytochrome c-like domain superfamily	Homologous Superfamily
B [auth C], D	IPR050597	Cytochrome c Oxidase Subunit	Family
B [auth C], D	IPR009056	Cytochrome c-like domain	Domain
B [auth C], D	IPR024167	Cytochrome c4-like	Family

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.