Annotations: 4C3X

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	PRK07843	e4c3xA2	A: alpha arrays	X: HTH	H: HTH	T: HTH motif inserted in other structures	F: PRK07843	ECOD (1.6)
A	FAD_binding_2_1	e4c3xA3	A: a+b complex topology	X: Succinate dehydrogenase/fumarate reductase flavoprotein, catalytic domain (From Topology)	H: Succinate dehydrogenase/fumarate reductase flavoprotein, catalytic domain (From Topology)	T: Succinate dehydrogenase/fumarate reductase flavoprotein, catalytic domain	F: FAD_binding_2_1	ECOD (1.6)
A	FAD_binding_3_1st	e4c3xA1	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: FAD/NAD(P)-binding domain	F: FAD_binding_3_1st	ECOD (1.6)
B	PRK07843	e4c3xB8	A: alpha arrays	X: HTH	H: HTH	T: HTH motif inserted in other structures	F: PRK07843	ECOD (1.6)
B	FAD_binding_2_1	e4c3xB7	A: a+b complex topology	X: Succinate dehydrogenase/fumarate reductase flavoprotein, catalytic domain (From Topology)	H: Succinate dehydrogenase/fumarate reductase flavoprotein, catalytic domain (From Topology)	T: Succinate dehydrogenase/fumarate reductase flavoprotein, catalytic domain	F: FAD_binding_2_1	ECOD (1.6)
B	FAD_binding_3_1st	e4c3xB9	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: FAD/NAD(P)-binding domain	F: FAD_binding_3_1st	ECOD (1.6)
C	PRK07843	e4c3xC8	A: alpha arrays	X: HTH	H: HTH	T: HTH motif inserted in other structures	F: PRK07843	ECOD (1.6)
C	FAD_binding_2_1	e4c3xC7	A: a+b complex topology	X: Succinate dehydrogenase/fumarate reductase flavoprotein, catalytic domain (From Topology)	H: Succinate dehydrogenase/fumarate reductase flavoprotein, catalytic domain (From Topology)	T: Succinate dehydrogenase/fumarate reductase flavoprotein, catalytic domain	F: FAD_binding_2_1	ECOD (1.6)
C	FAD_binding_3_1st	e4c3xC9	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: FAD/NAD(P)-binding domain	F: FAD_binding_3_1st	ECOD (1.6)
D	PRK07843	e4c3xD8	A: alpha arrays	X: HTH	H: HTH	T: HTH motif inserted in other structures	F: PRK07843	ECOD (1.6)
D	FAD_binding_2_1	e4c3xD7	A: a+b complex topology	X: Succinate dehydrogenase/fumarate reductase flavoprotein, catalytic domain (From Topology)	H: Succinate dehydrogenase/fumarate reductase flavoprotein, catalytic domain (From Topology)	T: Succinate dehydrogenase/fumarate reductase flavoprotein, catalytic domain	F: FAD_binding_2_1	ECOD (1.6)
D	FAD_binding_3_1st	e4c3xD9	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: FAD/NAD(P)-binding domain	F: FAD_binding_3_1st	ECOD (1.6)
E	PRK07843	e4c3xE8	A: alpha arrays	X: HTH	H: HTH	T: HTH motif inserted in other structures	F: PRK07843	ECOD (1.6)
E	FAD_binding_2_1	e4c3xE7	A: a+b complex topology	X: Succinate dehydrogenase/fumarate reductase flavoprotein, catalytic domain (From Topology)	H: Succinate dehydrogenase/fumarate reductase flavoprotein, catalytic domain (From Topology)	T: Succinate dehydrogenase/fumarate reductase flavoprotein, catalytic domain	F: FAD_binding_2_1	ECOD (1.6)
E	FAD_binding_3_1st	e4c3xE9	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: FAD/NAD(P)-binding domain	F: FAD_binding_3_1st	ECOD (1.6)
F	PRK07843	e4c3xF8	A: alpha arrays	X: HTH	H: HTH	T: HTH motif inserted in other structures	F: PRK07843	ECOD (1.6)
F	FAD_binding_2_1	e4c3xF7	A: a+b complex topology	X: Succinate dehydrogenase/fumarate reductase flavoprotein, catalytic domain (From Topology)	H: Succinate dehydrogenase/fumarate reductase flavoprotein, catalytic domain (From Topology)	T: Succinate dehydrogenase/fumarate reductase flavoprotein, catalytic domain	F: FAD_binding_2_1	ECOD (1.6)
F	FAD_binding_3_1st	e4c3xF9	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: FAD/NAD(P)-binding domain	F: FAD_binding_3_1st	ECOD (1.6)
G	PRK07843	e4c3xG8	A: alpha arrays	X: HTH	H: HTH	T: HTH motif inserted in other structures	F: PRK07843	ECOD (1.6)
G	FAD_binding_2_1	e4c3xG7	A: a+b complex topology	X: Succinate dehydrogenase/fumarate reductase flavoprotein, catalytic domain (From Topology)	H: Succinate dehydrogenase/fumarate reductase flavoprotein, catalytic domain (From Topology)	T: Succinate dehydrogenase/fumarate reductase flavoprotein, catalytic domain	F: FAD_binding_2_1	ECOD (1.6)
G	FAD_binding_3_1st	e4c3xG9	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: FAD/NAD(P)-binding domain	F: FAD_binding_3_1st	ECOD (1.6)
H	PRK07843	e4c3xH8	A: alpha arrays	X: HTH	H: HTH	T: HTH motif inserted in other structures	F: PRK07843	ECOD (1.6)
H	FAD_binding_2_1	e4c3xH7	A: a+b complex topology	X: Succinate dehydrogenase/fumarate reductase flavoprotein, catalytic domain (From Topology)	H: Succinate dehydrogenase/fumarate reductase flavoprotein, catalytic domain (From Topology)	T: Succinate dehydrogenase/fumarate reductase flavoprotein, catalytic domain	F: FAD_binding_2_1	ECOD (1.6)
H	FAD_binding_3_1st	e4c3xH9	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: FAD/NAD(P)-binding domain	F: FAD_binding_3_1st	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	3.90.700.10	Alpha Beta	Alpha-Beta Complex	Flavocytochrome C3	Chain A, domain 1	CATH (4.3.0)
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)
B	3.90.700.10	Alpha Beta	Alpha-Beta Complex	Flavocytochrome C3	Chain A, domain 1	CATH (4.3.0)
C	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	3.90.700.10	Alpha Beta	Alpha-Beta Complex	Flavocytochrome C3	Chain A, domain 1	CATH (4.3.0)
D	3.50.50.60	Alpha Beta	3-Layer(bba) Sandwich	FAD/NAD(P)-binding domain	FAD/NAD(P)-binding domain	CATH (4.3.0)
D	3.90.700.10	Alpha Beta	Alpha-Beta Complex	Flavocytochrome C3	Chain A, domain 1	CATH (4.3.0)
E	3.50.50.60	Alpha Beta	3-Layer(bba) Sandwich	FAD/NAD(P)-binding domain	FAD/NAD(P)-binding domain	CATH (4.3.0)
E	3.90.700.10	Alpha Beta	Alpha-Beta Complex	Flavocytochrome C3	Chain A, domain 1	CATH (4.3.0)
F	3.50.50.60	Alpha Beta	3-Layer(bba) Sandwich	FAD/NAD(P)-binding domain	FAD/NAD(P)-binding domain	CATH (4.3.0)
F	3.90.700.10	Alpha Beta	Alpha-Beta Complex	Flavocytochrome C3	Chain A, domain 1	CATH (4.3.0)
G	3.50.50.60	Alpha Beta	3-Layer(bba) Sandwich	FAD/NAD(P)-binding domain	FAD/NAD(P)-binding domain	CATH (4.3.0)
G	3.90.700.10	Alpha Beta	Alpha-Beta Complex	Flavocytochrome C3	Chain A, domain 1	CATH (4.3.0)
H	3.50.50.60	Alpha Beta	3-Layer(bba) Sandwich	FAD/NAD(P)-binding domain	FAD/NAD(P)-binding domain	CATH (4.3.0)
H	3.90.700.10	Alpha Beta	Alpha-Beta Complex	Flavocytochrome C3	Chain A, domain 1	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D, E A, B, C, D, E, F, G, H	PF00890	FAD binding domain (FAD_binding_2)	FAD binding domain	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D, E A, B, C, D, E, F, G, H	3-KETOSTEROID DEHYDROGENASE	binding nucleoside phosphate binding organic cyclic compound binding nucleotide binding heterocyclic compound binding small molecule binding steroid dehydrogenase activity 3-oxosteroid 1-dehydrogenase activity oxidoreductase activity steroid dehydrogenase activity, acting on the CH-CH group of donors oxidoreductase activity, acting on the CH-CH group of donors catalytic activity	organic cyclic compound metabolic process organic substance metabolic process steroid metabolic process metabolic process primary metabolic process lipid metabolic process	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D, E A, B, C, D, E, F, G, H	IPR036188	FAD/NAD(P)-binding domain superfamily	Homologous Superfamily
A, B, C, D, E A, B, C, D, E, F, G, H	IPR027477	Succinate dehydrogenase/fumarate reductase flavoprotein, catalytic domain superfamily	Homologous Superfamily
A, B, C, D, E A, B, C, D, E, F, G, H	IPR003953	FAD-dependent oxidoreductase 2, FAD binding domain	Domain