Annotations: 3Q4I

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	rve	e3q4iA2	A: a/b three-layered sandwiches	X: Lipocalins/Streptavidin	H: Zn-dependent exopeptidases	T: Zn-dependent exopeptidases	F: rve	ECOD (v294.1)
A	TetR_N	e3q4iA1	A: a/b three-layered sandwiches	X: DEATH domain	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F: TetR_N	ECOD (v294.1)
B	rve	e3q4iB2	A: a/b three-layered sandwiches	X: Lipocalins/Streptavidin	H: Zn-dependent exopeptidases	T: Zn-dependent exopeptidases	F: rve	ECOD (v294.1)
B	MoCF_biosynth	e3q4iB1	A: a/b three-layered sandwiches	X: Fusion glycoprotein F2	H: HTH	T: winged helix domain	F: MoCF_biosynth	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	6.10.250.1120	Special	Helix non-globular	Single alpha-helices involved in coiled-coils or other helix-helix interfaces		CATH (4.3.0)
A	3.90.79.10	Alpha Beta	Alpha-Beta Complex	Nucleoside Triphosphate Pyrophosphohydrolase	Nucleoside Triphosphate Pyrophosphohydrolase	CATH (4.3.0)
B	6.10.250.1120	Special	Helix non-globular	Single alpha-helices involved in coiled-coils or other helix-helix interfaces		CATH (4.3.0)
B	3.90.79.10	Alpha Beta	Alpha-Beta Complex	Nucleoside Triphosphate Pyrophosphohydrolase	Nucleoside Triphosphate Pyrophosphohydrolase	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF00293	NUDIX domain (NUDIX)	NUDIX domain		Domain
A, B	PF12535	UDP-X-like, N-terminal oligomerisation domain (Nudix_N)	UDP-X-like, N-terminal oligomerisation domain	This entry represents an alpha-helical oligomerisation domain which is found at the N-terminal end of a number of phosphatases such as UDP-X diphosphatase from Streptococcus pneumoniae PDB:4HFQ and CDP-Choline Pyrophosphatase from Bacillus cereus PDB ...	This entry represents an alpha-helical oligomerisation domain which is found at the N-terminal end of a number of phosphatases such as UDP-X diphosphatase from Streptococcus pneumoniae PDB:4HFQ and CDP-Choline Pyrophosphatase from Bacillus cereus PDB:3Q1P, and related bacterial proteins. This domain precedes the Nudix domain Pfam:PF00293 and this arrangement is typical for this group of phosphatases. UDP-X diphosphatase catalyses the last step of the Mur pathway of peptidoglycan biosynthesis and can hydrolyse the Mur pathway substrates UDP-N-acetylmuramic acid and UDP-N-acetylmuramoyl-L-alanine. In addition to its Nudix catalytic activity, the enzyme has a 3'-5' RNA exonuclease activity [2]. CDP-Choline Pyrophosphatase catalyses the hydrolysis of CDP-choline to produce CMP and phosphocholine and in addition, the enzyme has a 3'-5' RNA exonuclease activity [3].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Phosphohydrolase (MutT/nudix family protein)	pyrophosphatase activity dihydroneopterin triphosphate pyrophosphohydrolase activity hydrolase activity, acting on acid anhydrides, in phosphorus-containing anhydrides hydrolase activity hydrolase activity, acting on acid anhydrides catalytic activity dATP diphosphatase activity nucleoside triphosphate diphosphatase activity	oxoacid metabolic process modified amino acid biosynthetic process vitamin biosynthetic process organic acid metabolic process organic acid biosynthetic process carboxylic acid biosynthetic process small molecule metabolic process folic acid metabolic process dicarboxylic acid biosynthetic process folic acid biosynthetic process folic acid-containing compound biosynthetic process water-soluble vitamin biosynthetic process small molecule biosynthetic process dicarboxylic acid metabolic process oxoacid metabolic process modified amino acid biosynthetic process vitamin biosynthetic process organic acid metabolic process organic acid biosynthetic process carboxylic acid biosynthetic process small molecule metabolic process folic acid metabolic process dicarboxylic acid biosynthetic process folic acid biosynthetic process folic acid-containing compound biosynthetic process water-soluble vitamin biosynthetic process small molecule biosynthetic process dicarboxylic acid metabolic process modified amino acid metabolic process carboxylic acid metabolic process vitamin metabolic process biosynthetic process folic acid-containing compound metabolic process pteridine-containing compound biosynthetic process metabolic process cellular process pteridine-containing compound metabolic process tetrahydrofolate biosynthetic process tetrahydrofolate metabolic process	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR000086	NUDIX hydrolase domain	Domain
A, B	IPR059176	UDP-X diphosphatase-like, N-terminal oligomerisation domain	Domain
A, B	IPR015797	NUDIX hydrolase-like 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. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.