2Q37

Crystal structure of OHCU decarboxylase in the presence of (S)-allantoin

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d2q37a1	All alpha proteins	UraD-like	UraD-Like	UraD-like	OHCU decarboxylase, UraD	thale cress (Arabidopsis thaliana ) [TaxId: 3702 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	UraD-like	8022804	4001542	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	UraD-Like	8035184	3001795	SCOP2 (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	OHCU_decarbox	e2q37A1	A: alpha arrays	X: UraD-like (From Topology)	H: UraD-like (From Topology)	T: UraD-like	F: OHCU_decarbox	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.10.3330.10	Mainly Alpha	Orthogonal Bundle	UraD-like	Oxo-4-hydroxy-4-carboxy-5-ureidoimidazoline decarboxylase	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF09349	OHCU decarboxylase (OHCU_decarbox)	OHCU decarboxylase	The proteins in this family are OHCU decarboxylase - enzymes of the purine catabolism that catalyse the conversion of OHCU into S(+)-allantoin [1]. This is the third step of the conversion of uric acid (a purine derivative) to allantoin. Step one is ...	The proteins in this family are OHCU decarboxylase - enzymes of the purine catabolism that catalyse the conversion of OHCU into S(+)-allantoin [1]. This is the third step of the conversion of uric acid (a purine derivative) to allantoin. Step one is catalysed by urate oxidase (Pfam:PF01014) and step two is catalysed by HIUases (Pfam:PF00576).	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	OHCU decarboxylase	hydrolase activity hydroxyisourate hydrolase activity hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds, in cyclic amides catalytic activity hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds 2-oxo-4-hydroxy-4-carboxy-5-ureidoimidazoline decarboxylase activity carboxy-lyase activity lyase activity carbon-carbon lyase activity identical protein binding protein binding binding	allantoin metabolic process biosynthetic process amide biosynthetic process metabolic process cellular process amide metabolic process allantoin biosynthetic process cellular response to stimulus regulation of cellular process response to lipid response to stimulus signaling hormone-mediated signaling pathway cell communication allantoin metabolic process biosynthetic process amide biosynthetic process metabolic process cellular process amide metabolic process allantoin biosynthetic process cellular response to stimulus regulation of cellular process response to lipid response to stimulus signaling hormone-mediated signaling pathway cell communication brassinosteroid mediated signaling pathway cellular response to endogenous stimulus response to hormone response to steroid hormone signal transduction cellular response to steroid hormone stimulus cellular response to hormone stimulus steroid hormone receptor signaling pathway regulation of biological process response to endogenous stimulus cellular response to brassinosteroid stimulus biological regulation response to oxygen-containing compound cellular response to oxygen-containing compound cellular response to chemical stimulus response to chemical response to brassinosteroid cellular response to lipid nucleobase-containing compound metabolic process purine nucleobase metabolic process nucleobase-containing small molecule metabolic process nucleobase metabolic process small molecule metabolic process primary metabolic process purine-containing compound metabolic process cellular component organization cellular component biogenesis cellular component assembly protein-containing complex organization protein complex oligomerization protein tetramerization protein-containing complex assembly cellular component organization or biogenesis regulation of brassinosteroid mediated signaling pathway regulation of signal transduction regulation of signaling regulation of response to stimulus regulation of cell communication cold acclimation response to stress response to abiotic stimulus response to cold response to temperature stimulus catabolic process urate catabolic process purine-containing compound catabolic process small molecule catabolic process urate metabolic process developmental process multicellular organismal process regulation of multicellular organismal development regulation of developmental process regulation of seedling development seedling development multicellular organism development regulation of post-embryonic development anatomical structure development post-embryonic development regulation of multicellular organismal process regulation of cell growth by extracellular stimulus regulation of growth regulation of cellular component organization growth regulation of cell growth cell growth	cellular anatomical structure intracellular anatomical structure cytoplasm cytosol membrane-bounded organelle intracellular organelle organelle peroxisome microbody intracellular membrane-bounded organelle cell periphery extrinsic component of plasma membrane cytoplasmic side of plasma membrane cytoplasmic side of membrane cellular anatomical structure intracellular anatomical structure cytoplasm cytosol membrane-bounded organelle intracellular organelle organelle peroxisome microbody intracellular membrane-bounded organelle cell periphery extrinsic component of plasma membrane cytoplasmic side of plasma membrane cytoplasmic side of membrane membrane plasma membrane extrinsic component of membrane extrinsic component of cytoplasmic side of plasma membrane side of membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR036817	Transthyretin/hydroxyisourate hydrolase domain superfamily	Homologous Superfamily
A	IPR023418	Transthyretin, thyroxine binding site	Binding Site
A	IPR023419	Transthyretin, conserved site	Conserved Site
A	IPR023416	Transthyretin/hydroxyisourate hydrolase domain	Domain
A	IPR036778	Oxo-4-hydroxy-4-carboxy-5-ureidoimidazoline decarboxylase superfamily	Homologous Superfamily
A	IPR000895	Transthyretin/hydroxyisourate hydrolase	Family
A	IPR018020	Oxo-4-hydroxy-4-carboxy-5-ureidoimidazoline decarboxylase	Domain
A	IPR014306	Hydroxyisourate hydrolase	Family
A	IPR017129	Bifunctional hydroxyisourate hydrolase/2-oxo-4-hydroxy-4-carboxy-5-ureidoimidazoline decarboxylase	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.