6B1B

STRUCTURE OF 4-HYDROXYPHENYLACETATE 3-MONOOXYGENASE (HPAB), OXYGENASE COMPONENT FROM ESCHERICHIA COLI MUTANT XS6 (APO Enzyme)

External Resource: Annotation

Domain Annotation: ECOD Classification
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	HpaB_N_C	e6b1bA1	A: beta complex topology	X: Acyl-CoA dehydrogenase middle domain-like (From Topology)	H: Acyl-CoA dehydrogenase middle domain-like (From Topology)	T: Acyl-CoA dehydrogenase middle domain-like	F: HpaB_N_C	ECOD (1.6)
A	HpaB_N_N	e6b1bA2	A: alpha arrays	X: Acyl-CoA dehydrogenase N-terminal domain-like (From Topology)	H: Acyl-CoA dehydrogenase N-terminal domain-like (From Topology)	T: Acyl-CoA dehydrogenase N-terminal domain-like	F: HpaB_N_N	ECOD (1.6)
A	HpaB	e6b1bA3	A: alpha bundles	X: Bromodomain-like	H: Acyl-CoA dehydrogenase C-terminal domain-like (From Topology)	T: Acyl-CoA dehydrogenase C-terminal domain-like	F: HpaB	ECOD (1.6)
B	HpaB_N_C	e6b1bB3	A: beta complex topology	X: Acyl-CoA dehydrogenase middle domain-like (From Topology)	H: Acyl-CoA dehydrogenase middle domain-like (From Topology)	T: Acyl-CoA dehydrogenase middle domain-like	F: HpaB_N_C	ECOD (1.6)
B	HpaB_N_N	e6b1bB2	A: alpha arrays	X: Acyl-CoA dehydrogenase N-terminal domain-like (From Topology)	H: Acyl-CoA dehydrogenase N-terminal domain-like (From Topology)	T: Acyl-CoA dehydrogenase N-terminal domain-like	F: HpaB_N_N	ECOD (1.6)
B	HpaB	e6b1bB1	A: alpha bundles	X: Bromodomain-like	H: Acyl-CoA dehydrogenase C-terminal domain-like (From Topology)	T: Acyl-CoA dehydrogenase C-terminal domain-like	F: HpaB	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF11794	4-hydroxyphenylacetate 3-hydroxylase N terminal (HpaB_N)	4-hydroxyphenylacetate 3-hydroxylase N terminal	-	Family
A, B	PF03241	4-hydroxyphenylacetate 3-hydroxylase C terminal (HpaB)	4-hydroxyphenylacetate 3-hydroxylase C terminal	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	4-hydroxyphenylacetate 3-monooxygenase, oxygenase subunit	oxidoreductase activity oxidoreductase activity, acting on the CH-CH group of donors catalytic activity flavin adenine dinucleotide binding binding nucleoside phosphate binding ion binding organic cyclic compound binding anion binding nucleotide binding heterocyclic compound binding small molecule binding monooxygenase activity oxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen oxidoreductase activity oxidoreductase activity, acting on the CH-CH group of donors catalytic activity flavin adenine dinucleotide binding binding nucleoside phosphate binding ion binding organic cyclic compound binding anion binding nucleotide binding heterocyclic compound binding small molecule binding monooxygenase activity oxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen oxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen, reduced flavin or flavoprotein as one donor, and incorporation of one atom of oxygen	cellular response to stimulus catabolic process response to stimulus oxoacid metabolic process organic acid catabolic process organic acid metabolic process response to xenobiotic stimulus cellular catabolic process monocarboxylic acid catabolic process carboxylic acid catabolic process small molecule metabolic process benzene-containing compound metabolic process cellular response to xenobiotic stimulus cellular metabolic process cellular response to stimulus catabolic process response to stimulus oxoacid metabolic process organic acid catabolic process organic acid metabolic process response to xenobiotic stimulus cellular catabolic process monocarboxylic acid catabolic process carboxylic acid catabolic process small molecule metabolic process benzene-containing compound metabolic process cellular response to xenobiotic stimulus cellular metabolic process carboxylic acid metabolic process xenobiotic catabolic process xenobiotic metabolic process cellular response to chemical stimulus response to chemical phenylacetate catabolic process metabolic process cellular process monocarboxylic acid metabolic process small molecule catabolic process	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR012688	4-hydroxyphenylacetate 3-monooxygenase oxygenase component, gammaproteobacteria	Family
A, B	IPR009100	Acyl-CoA dehydrogenase/oxidase, N-terminal and middle domain superfamily	Homologous Superfamily
A, B	IPR024719	HpaB/PvcC/4-BUDH C-terminal	Domain
A, B	IPR046373	Acyl-CoA oxidase/dehydrogenase, middle domain superfamily	Homologous Superfamily
A, B	IPR004925	HpaB/PvcC/4-BUDH	Family
A, B	IPR024677	4-HPA 3-monooxygenase large component/Pyoverdin chromophore biosynthetic protein	Family
A, B	IPR036250	Acyl-CoA dehydrogenase-like, C-terminal	Homologous Superfamily
A, B	IPR024674	HpaB/PvcC/4-BUDH N-terminal	Domain

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.