Annotations: 1LJ1

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
B	d1lj1b1	All alpha proteins	Multiheme cytochromes	Multiheme cytochromes	Di-heme elbow motif	Flavocytochrome c3 (respiratory fumarate reductase), N-terminal domain	(Shewanella frigidimarina ) [TaxId: 56812 ],	SCOPe (2.08)
B	d1lj1b2	Alpha and beta proteins (a/b)	FAD/NAD(P)-binding domain	FAD/NAD(P)-binding domain	Succinate dehydrogenase/fumarate reductase flavoprotein N-terminal domain	Flavocytochrome c3 (respiratory fumarate reductase)	(Shewanella frigidimarina ) [TaxId: 56812 ],	SCOPe (2.08)
B	d1lj1b3	Alpha and beta proteins (a+b)	Succinate dehydrogenase/fumarate reductase flavoprotein, catalytic domain	Succinate dehydrogenase/fumarate reductase flavoprotein, catalytic domain	Succinate dehydrogenase/fumarate reductase flavoprotein, catalytic domain	Flavocytochrome c3 (respiratory fumarate reductase)	(Shewanella frigidimarina ) [TaxId: 56812 ],	SCOPe (2.08)
A	d1lj1a1	All alpha proteins	Multiheme cytochromes	Multiheme cytochromes	Di-heme elbow motif	Flavocytochrome c3 (respiratory fumarate reductase), N-terminal domain	(Shewanella frigidimarina ) [TaxId: 56812 ],	SCOPe (2.08)
A	d1lj1a2	Alpha and beta proteins (a/b)	FAD/NAD(P)-binding domain	FAD/NAD(P)-binding domain	Succinate dehydrogenase/fumarate reductase flavoprotein N-terminal domain	Flavocytochrome c3 (respiratory fumarate reductase)	(Shewanella frigidimarina ) [TaxId: 56812 ],	SCOPe (2.08)
A	d1lj1a3	Alpha and beta proteins (a+b)	Succinate dehydrogenase/fumarate reductase flavoprotein, catalytic domain	Succinate dehydrogenase/fumarate reductase flavoprotein, catalytic domain	Succinate dehydrogenase/fumarate reductase flavoprotein, catalytic domain	Flavocytochrome c3 (respiratory fumarate reductase)	(Shewanella frigidimarina ) [TaxId: 56812 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B	SCOP2B Superfamily	Succinate dehydrogenase/fumarate reductase domain-like	8001312	3000054	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Di-heme elbow motif	8001527	3000145	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Succinate dehydrogenase/fumarate reductase domain-like	8001312	3000054	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Di-heme elbow motif	8001527	3000145	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)
B	flavo_cyto_c_like	e1lj1B3	A: alpha arrays	X: HTH	H: HTH	T: HTH motif inserted in other structures	F: flavo_cyto_c_like	ECOD (1.6)
B	FAD_binding_2_1	e1lj1B1	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	e1lj1B4	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	Cytochrom_c3_2	e1lj1B2	A: few secondary structure elements	X: Multiheme cytochromes	H: Di-heme elbow motif (From Topology)	T: Di-heme elbow motif	F: Cytochrom_c3_2	ECOD (1.6)
A	flavo_cyto_c_like	e1lj1A3	A: alpha arrays	X: HTH	H: HTH	T: HTH motif inserted in other structures	F: flavo_cyto_c_like	ECOD (1.6)
A	FAD_binding_2_1	e1lj1A1	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	e1lj1A2	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)
A	Cytochrom_c3_2	e1lj1A4	A: few secondary structure elements	X: Multiheme cytochromes	H: Di-heme elbow motif (From Topology)	T: Di-heme elbow motif	F: Cytochrom_c3_2	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	3.90.700.10	Alpha Beta	Alpha-Beta Complex	Flavocytochrome C3	Chain A, domain 1	CATH (4.3.0)
B	1.10.1130.10	Mainly Alpha	Orthogonal Bundle	Flavocytochrome C3	Chain A, domain 2	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)
A	3.90.700.10	Alpha Beta	Alpha-Beta Complex	Flavocytochrome C3	Chain A, domain 1	CATH (4.3.0)
A	1.10.1130.10	Mainly Alpha	Orthogonal Bundle	Flavocytochrome C3	Chain A, domain 2	CATH (4.3.0)
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)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF14537	Cytochrome c3 (Cytochrom_c3_2)	Cytochrome c3	-	Family
A, B	PF00890	FAD binding domain (FAD_binding_2)	FAD binding domain	This family includes members that bind FAD. This family includes the flavoprotein subunits from succinate and fumarate dehydrogenase, aspartate oxidase and the alpha subunit of adenylylsulphate reductase.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	flavocytochrome c3	oxidoreductase activity catalytic activity FMN binding binding nucleoside phosphate binding ion binding anion binding nucleotide binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding electron transfer activity cation binding oxidoreductase activity catalytic activity FMN binding binding nucleoside phosphate binding ion binding anion binding nucleotide binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding electron transfer activity cation binding metal ion binding	anaerobic electron transport chain cellular respiration energy derivation by oxidation of organic compounds respiratory electron transport chain electron transport chain metabolic process cellular process generation of precursor metabolites and energy anaerobic respiration	cellular anatomical structure outer membrane-bounded periplasmic space cell envelope periplasmic space

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR036280	Multiheme cytochrome superfamily	Homologous Superfamily
A, B	IPR003953	FAD-dependent oxidoreductase 2, FAD-binding domain	Domain
A, B	IPR013087	Zinc finger C2H2-type	Domain
A, B	IPR050315	FAD-dependent oxidoreductase 2	Family
A, B	IPR036188	FAD/NAD(P)-binding domain superfamily	Homologous Superfamily
A, B	IPR010960	Flavocytochrome c	Family
A, B	IPR012286	Tetraheme cytochrome domain	Domain
A, B	IPR027477	Succinate dehydrogenase/fumarate reductase flavoprotein, catalytic domain superfamily	Homologous Superfamily

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.