Annotations: 4H2R

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	EUF08301	e4h2rA1	A: a+b two layers	X: FAD-linked reductases, C-terminal domain-like	H: FAD-linked reductases-C (From Topology)	T: FAD-linked reductases-C	F: EUF08301	ECOD (1.6)
A	FAD_binding_3_1st	e4h2rA2	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	EUF08301	e4h2rB1	A: a+b two layers	X: FAD-linked reductases, C-terminal domain-like	H: FAD-linked reductases-C (From Topology)	T: FAD-linked reductases-C	F: EUF08301	ECOD (1.6)
B	FAD_binding_3_1st	e4h2rB2	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	3.30.9.10	Alpha Beta	2-Layer Sandwich	D-Amino Acid Oxidase	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)
B	3.30.9.10	Alpha Beta	2-Layer Sandwich	D-Amino Acid Oxidase	Chain A, domain 2	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF01494	FAD binding domain (FAD_binding_3)	FAD binding domain	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	2-methyl-3-hydroxypyridine-5-carboxylic acid oxygenase	monooxygenase activity oxidoreductase activity catalytic activity FAD binding flavin adenine dinucleotide binding binding nucleoside phosphate binding ion binding organic cyclic compound binding anion binding nucleotide binding heterocyclic compound binding small molecule binding	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR002938	FAD-binding domain	Domain
A, B	IPR050493	FAD-dependent Monooxygenases in Biosynthesis and Metabolism	Family
A, B	IPR036188	FAD/NAD(P)-binding 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.