Annotations: 5B48

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
D	CagX	e5b48D1	A: a/b three-layered sandwiches	X: SMI1/KNR4-like	H: SMI1/KNR4-like	T: SMI1/KNR4-like	F: CagX	ECOD (v294.1)
B	PemK_toxin	e5b48B1	A: a/b three-layered sandwiches	X: cradle loop barrel	H: RIFT-related	T: Alanine racemase-C	F: PemK_toxin	ECOD (v294.1)
C	euk_SelB_III	e5b48C1	A: a/b three-layered sandwiches	X: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4	H: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4	T: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4	F: euk_SelB_III	ECOD (v294.1)
A	euk_SelB_III	e5b48A1	A: a/b three-layered sandwiches	X: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4	H: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4	T: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4	F: euk_SelB_III	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
C	3.40.50.970	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Thiamin diphosphate (ThDP)-binding fold, Pyr/PP domains	CATH (utative)
C	3.40.50.920	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold		CATH (utative)
A	3.40.50.970	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Thiamin diphosphate (ThDP)-binding fold, Pyr/PP domains	CATH (utative)
A	3.40.50.920	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold		CATH (utative)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
B, D	PF12367	Pyruvate ferredoxin oxidoreductase beta subunit C terminal (PFO_beta_C)	Pyruvate ferredoxin oxidoreductase beta subunit C terminal	-	Family
B, D	PF02775	Thiamine pyrophosphate enzyme, C-terminal TPP binding domain (TPP_enzyme_C)	Thiamine pyrophosphate enzyme, C-terminal TPP binding domain		Domain
A, C	PF01855	Pyruvate flavodoxin/ferredoxin oxidoreductase, thiamine diP-bdg (POR_N)	Pyruvate flavodoxin/ferredoxin oxidoreductase, thiamine diP-bdg	-	Family
A, C	PF01558	Pyruvate ferredoxin/flavodoxin oxidoreductase (POR)	Pyruvate ferredoxin/flavodoxin oxidoreductase	This family includes a region of the large protein pyruvate-flavodoxin oxidoreductase and the whole pyruvate ferredoxin oxidoreductase gamma subunit protein. It is not known whether the gamma subunit has a catalytic or regulatory role. Pyruvate oxido ...	This family includes a region of the large protein pyruvate-flavodoxin oxidoreductase and the whole pyruvate ferredoxin oxidoreductase gamma subunit protein. It is not known whether the gamma subunit has a catalytic or regulatory role. Pyruvate oxidoreductase (POR) catalyses the final step in the fermentation of carbohydrates in anaerobic microorganisms [1]. This involves the oxidative decarboxylation of pyruvate with the participation of thiamine followed by the transfer of an acetyl moiety to coenzyme A for the synthesis of acetyl-CoA [1]. The family also includes pyruvate flavodoxin oxidoreductase as encoded by the nifJ gene in cyanobacterium which is required for growth on molecular nitrogen when iron is limited [2].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
B, D	2-oxoacid--ferredoxin oxidoreductase beta subunit	cation binding magnesium ion binding ion binding binding metal ion binding small molecule binding oxidoreductase activity oxidoreductase activity, acting on the aldehyde or oxo group of donors 2-oxobutyrate synthase activity catalytic activity oxidoreductase activity, acting on the aldehyde or oxo group of donors, NAD or NADP as acceptor pyruvate synthase activity oxidoreductase activity, acting on the aldehyde or oxo group of donors, iron-sulfur protein as acceptor 2-oxoglutarate synthase activity cation binding magnesium ion binding ion binding binding metal ion binding small molecule binding oxidoreductase activity oxidoreductase activity, acting on the aldehyde or oxo group of donors 2-oxobutyrate synthase activity catalytic activity oxidoreductase activity, acting on the aldehyde or oxo group of donors, NAD or NADP as acceptor pyruvate synthase activity oxidoreductase activity, acting on the aldehyde or oxo group of donors, iron-sulfur protein as acceptor 2-oxoglutarate synthase activity iron-sulfur cluster binding 4 iron, 4 sulfur cluster binding metal cluster binding vitamin binding thiamine pyrophosphate binding anion binding quaternary ammonium group binding heterocyclic compound binding sulfur compound binding	-	-
A, C	2-oxoacid--ferredoxin oxidoreductase alpha subunit	oxidoreductase activity oxidoreductase activity, acting on the aldehyde or oxo group of donors 2-oxobutyrate synthase activity catalytic activity oxidoreductase activity, acting on the aldehyde or oxo group of donors, NAD or NADP as acceptor pyruvate synthase activity oxidoreductase activity, acting on the aldehyde or oxo group of donors, iron-sulfur protein as acceptor 2-oxoglutarate synthase activity	response to oxidative stress response to stimulus response to stress	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
B, D	IPR053399	2-oxoacid:ferredoxin oxidoreductase beta subunit	Family
B, D	IPR051457	2-oxoacid:ferredoxin oxidoreductase	Family
B, D	IPR032686	2-oxoacid:ferredoxin oxidoreductase subunit beta, C-terminal	Domain
B, D	IPR029061	Thiamin diphosphate-binding fold	Homologous Superfamily
B, D	IPR011896	2-oxoacid:acceptor oxidoreductase, beta subunit	Family
B, D	IPR011766	Thiamine pyrophosphate enzyme, TPP-binding	Domain
A, C	IPR002869	Pyruvate-flavodoxin oxidoreductase, central domain	Homologous Superfamily
A, C	IPR053400	2-oxoacid:ferredoxin oxidoreductase alpha	Family
A, C	IPR022367	2-oxoacid:acceptor oxidoreductase, alpha subunit	Family
A, C	IPR029061	Thiamin diphosphate-binding fold	Homologous Superfamily
A, C	IPR009014	Transketolase C-terminal/Pyruvate-ferredoxin oxidoreductase domain II	Homologous Superfamily
A, C	IPR019752	Pyruvate/ketoisovalerate oxidoreductase, catalytic domain	Domain
A, C	IPR002880	Pyruvate flavodoxin/ferredoxin oxidoreductase, pyrimidine binding domain	Domain
A, C	IPR050722	Pyruvate:ferredoxin/flavodoxin oxidoreductase	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. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.