Annotations: 8U86

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B [auth C]	PF08022	FAD-binding domain (FAD_binding_8)	FAD-binding domain	This entry represents FAD binding domain that is associated with ferric reductase NAD binding proteins and the heavy chain of Cytochrome b-245. Members of this group are predominantly found in eukaryotes and bacteria.	Domain
A, B [auth C]	PF01794	Ferric reductase like transmembrane component (Ferric_reduct)	Ferric reductase like transmembrane component	This family includes a common region in the transmembrane proteins mammalian cytochrome B-245 heavy chain (gp91-phox), ferric reductase transmembrane component in yeast and respiratory burst oxidase from mouse-ear cress. This may be a family of flavo ...	This family includes a common region in the transmembrane proteins mammalian cytochrome B-245 heavy chain (gp91-phox), ferric reductase transmembrane component in yeast and respiratory burst oxidase from mouse-ear cress. This may be a family of flavocytochromes capable of moving electrons across the plasma membrane [1]. The Frp1 protein Swiss:Q04800 from S. pombe is a ferric reductase component and is required for cell surface ferric reductase activity, mutants in frp1 are deficient in ferric iron uptake [1]. Cytochrome B-245 heavy chain Swiss:P04839 is a FAD-dependent dehydrogenase it is also has electron transferase activity which reduces molecular oxygen to superoxide anion, a precursor in the production of microbicidal oxidants [2]. Mutations in the sequence of cytochrome B-245 heavy chain (gp91-phox) lead to the X-linked chronic granulomatous disease. The bacteriocidal ability of phagocytic cells is reduced and is characterised by the absence of a functional plasma membrane associated NADPH oxidase [3]. The chronic granulomatous disease gene codes for the beta chain of cytochrome B-245 and cytochrome B-245 is missing from patients with the disease [4].	Domain
A, B [auth C]	PF08030	Ferric reductase NAD binding domain (NAD_binding_6)	Ferric reductase NAD binding domain		Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B [auth C]	NADPH oxidase 5	cation binding ion binding binding calcium ion binding metal ion binding small molecule binding flavin adenine dinucleotide binding nucleoside phosphate binding anion binding nucleotide binding heterocyclic compound binding monoatomic cation transmembrane transporter activity proton transmembrane transporter activity monoatomic cation channel activity cation binding ion binding binding calcium ion binding metal ion binding small molecule binding flavin adenine dinucleotide binding nucleoside phosphate binding anion binding nucleotide binding heterocyclic compound binding monoatomic cation transmembrane transporter activity proton transmembrane transporter activity monoatomic cation channel activity passive transmembrane transporter activity monoatomic ion channel activity proton channel activity channel activity monoatomic ion transmembrane transporter activity transporter activity transmembrane transporter activity purine nucleotide binding adenyl nucleotide binding NADP binding tetrapyrrole binding heme binding oxidoreductase activity superoxide-generating NAD(P)H oxidase activity oxidoreductase activity, acting on NAD(P)H catalytic activity oxidoreductase activity, acting on NAD(P)H, oxygen as acceptor superoxide-generating NADPH oxidase activity	cell population proliferation endothelial cell proliferation cellular process epithelial cell proliferation monoatomic cation transmembrane transport transmembrane transport localization transport proton transmembrane transport monoatomic ion transmembrane transport monoatomic ion transport monoatomic cation transport establishment of localization superoxide metabolic process cell population proliferation endothelial cell proliferation cellular process epithelial cell proliferation monoatomic cation transmembrane transport transmembrane transport localization transport proton transmembrane transport monoatomic ion transmembrane transport monoatomic ion transport monoatomic cation transport establishment of localization superoxide metabolic process superoxide anion generation reactive oxygen species metabolic process metabolic process cytoskeleton-dependent cytokinesis cytokinesis cell division cell cycle cell cycle process developmental process multicellular organismal process blood vessel morphogenesis tube development angiogenesis vasculature development circulatory system development anatomical structure morphogenesis multicellular organism development tube morphogenesis anatomical structure formation involved in morphogenesis anatomical structure development blood vessel development system development apoptotic process cell death programmed cell death regulation of cellular component organization regulation of cellular process sexual reproduction regulation of reproductive process reproductive process membrane fusion fertilization cellular process involved in reproduction in multicellular organism cellular component organization regulation of fusion of sperm to egg plasma membrane fusion of sperm to egg plasma membrane involved in single fertilization plasma membrane organization regulation of multicellular organismal process cellular component organization or biogenesis endomembrane system organization single fertilization membrane organization regulation of biological process plasma membrane fusion biological regulation multicellular organismal reproductive process regulation of plasma membrane organization response to stimulus defense response response to stress positive regulation of biological process positive regulation of reactive oxygen species metabolic process positive regulation of metabolic process regulation of metabolic process positive regulation of cellular process regulation of reactive oxygen species metabolic process positive regulation of macromolecule biosynthetic process positive regulation of biosynthetic process cytokine production regulation of cytokine production positive regulation of macromolecule metabolic process regulation of biosynthetic process regulation of macromolecule metabolic process gene expression macromolecule biosynthetic process regulation of gene expression biosynthetic process positive regulation of gene expression positive regulation of multicellular organismal process regulation of macromolecule biosynthetic process macromolecule metabolic process positive regulation of cytokine production	cell periphery cellular anatomical structure plasma membrane membrane protein-containing complex catalytic complex plasma membrane protein complex NADPH oxidase complex membrane protein complex oxidoreductase complex membrane-bounded organelle intracellular anatomical structure organelle subcompartment intracellular membrane-bounded organelle cell periphery cellular anatomical structure plasma membrane membrane protein-containing complex catalytic complex plasma membrane protein complex NADPH oxidase complex membrane protein complex oxidoreductase complex membrane-bounded organelle intracellular anatomical structure organelle subcompartment intracellular membrane-bounded organelle endomembrane system endoplasmic reticulum subcompartment intracellular organelle organelle nuclear outer membrane-endoplasmic reticulum membrane network endoplasmic reticulum cytoplasm organelle membrane endoplasmic reticulum membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B [auth C]	IPR017938	Riboflavin synthase-like beta-barrel	Homologous Superfamily
A, B [auth C]	IPR002048	EF-hand domain	Domain
A, B [auth C]	IPR011992	EF-hand domain pair	Homologous Superfamily
A, B [auth C]	IPR013130	Ferric reductase transmembrane component-like domain	Domain
A, B [auth C]	IPR018247	EF-Hand 1, calcium-binding site	Binding Site
A, B [auth C]	IPR013112	FAD-binding 8	Domain
A, B [auth C]	IPR039261	Ferredoxin-NADP reductase (FNR), nucleotide-binding domain	Homologous Superfamily
A, B [auth C]	IPR050369	Respiratory burst oxidase/Ferric reductase	Family
A, B [auth C]	IPR017927	FAD-binding domain, ferredoxin reductase-type	Domain
A, B [auth C]	IPR013121	Ferric reductase, NAD binding domain	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B [auth C]	Pharos: Q96PH1	osteosarcoma

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

Chains	External Link	Comment
A, B [auth C]	PDBTM	Annotated as membrane protein by PDBTM

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.