Annotations: 1USH

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1usha1	Alpha and beta proteins (a+b)	5'-nucleotidase (syn. UDP-sugar hydrolase), C-terminal domain	5'-nucleotidase (syn. UDP-sugar hydrolase), C-terminal domain	5'-nucleotidase (syn. UDP-sugar hydrolase), C-terminal domain	5'-nucleotidase (syn. UDP-sugar hydrolase), C-terminal domain	(Escherichia coli K-12 ) [TaxId: 83333 ],	SCOPe (2.08)
A	d1usha2	Alpha and beta proteins (a+b)	Metallo-dependent phosphatases	Metallo-dependent phosphatases	5'-nucleotidase (syn. UDP-sugar hydrolase), N-terminal domain	5'-nucleotidase (syn. UDP-sugar hydrolase), N-terminal domain	(Escherichia coli K-12 ) [TaxId: 83333 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	5'-nucleotidase (syn. UDP-sugar hydrolase), C-terminal domain	8039497	3000515	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Metallo-dependent phosphatases	8039498	3001067	SCOP2B (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	Metallophos_2_1	e1ushA2	A: a+b four layers	X: Carbon-nitrogen hydrolase-like	H: Metallo-dependent phosphatases (From Topology)	T: Metallo-dependent phosphatases	F: Metallophos_2_1	ECOD (1.6)
A	5_nucleotid_C	e1ushA1	A: a+b complex topology	X: 5'-nucleotidase (syn. UDP-sugar hydrolase), C-terminal domain (From Topology)	H: 5'-nucleotidase (syn. UDP-sugar hydrolase), C-terminal domain (From Topology)	T: 5'-nucleotidase (syn. UDP-sugar hydrolase), C-terminal domain	F: 5_nucleotid_C	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.60.21.10	Alpha Beta	4-Layer Sandwich	Purple Acid Phosphatase	chain A, domain 2	CATH (4.3.0)
A	3.90.780.10	Alpha Beta	Alpha-Beta Complex	5'-nucleotidase	domain 2	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF00149	Calcineurin-like phosphoesterase (Metallophos)	Calcineurin-like phosphoesterase	This family includes a diverse range of phosphoesterases [1], including protein phosphoserine phosphatases, nucleotidases, sphingomyelin phosphodiesterases and 2'-3' cAMP phosphodiesterases as well as nucleases such as bacterial SbcD Swiss:P13457 or ...	This family includes a diverse range of phosphoesterases [1], including protein phosphoserine phosphatases, nucleotidases, sphingomyelin phosphodiesterases and 2'-3' cAMP phosphodiesterases as well as nucleases such as bacterial SbcD Swiss:P13457 or yeast MRE11 Swiss:P32829. The most conserved regions in this superfamily centre around the metal chelating residues.	Domain
A	PF02872	5'-nucleotidase, C-terminal domain (5_nucleotid_C)	5'-nucleotidase, C-terminal domain	-	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	5'-NUCLEOTIDASE	phosphoric ester hydrolase activity nucleotidase activity hydrolase activity, acting on ester bonds XMP 5'-nucleosidase activity phosphatase activity hydrolase activity 5'-nucleotidase activity catalytic activity pyrophosphatase activity UDP-sugar diphosphatase activity hydrolase activity, acting on acid anhydrides, in phosphorus-containing anhydrides hydrolase activity, acting on acid anhydrides binding nucleoside phosphate binding phosphoric ester hydrolase activity nucleotidase activity hydrolase activity, acting on ester bonds XMP 5'-nucleosidase activity phosphatase activity hydrolase activity 5'-nucleotidase activity catalytic activity pyrophosphatase activity UDP-sugar diphosphatase activity hydrolase activity, acting on acid anhydrides, in phosphorus-containing anhydrides hydrolase activity, acting on acid anhydrides binding nucleoside phosphate binding organic cyclic compound binding nucleotide binding heterocyclic compound binding small molecule binding cation binding ion binding metal ion binding	nucleoside phosphate metabolic process catabolic process cellular metabolic process organophosphate catabolic process primary metabolic process nucleoside phosphate catabolic process nucleotide metabolic process nucleobase-containing compound catabolic process nucleobase-containing compound metabolic process organophosphate metabolic process nucleobase-containing small molecule metabolic process phosphate-containing compound metabolic process metabolic process cellular process nucleoside phosphate metabolic process catabolic process cellular metabolic process organophosphate catabolic process primary metabolic process nucleoside phosphate catabolic process nucleotide metabolic process nucleobase-containing compound catabolic process nucleobase-containing compound metabolic process organophosphate metabolic process nucleobase-containing small molecule metabolic process phosphate-containing compound metabolic process metabolic process cellular process small molecule metabolic process phosphorus metabolic process nucleotide catabolic process	outer membrane-bounded periplasmic space cell envelope periplasmic space cellular anatomical entity

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR004843	Calcineurin-like phosphoesterase domain, ApaH type	Domain
A	IPR029052	Metallo-dependent phosphatase-like	Homologous Superfamily
A	IPR008334	5'-Nucleotidase, C-terminal	Domain
A	IPR036907	5'-Nucleotidase, C-terminal domain superfamily	Homologous Superfamily
A	IPR006146	5'-Nucleotidase, conserved site	Conserved Site
A	IPR006179	5'-Nucleotidase/apyrase	Family

Structure Motif Annotation: Mechanism and Catalytic Site Atlas M-CSA Database Homepage

Chains	Enzyme Name	Description	Catalytic Residues
A	5'-nucleotidase (bacterial) M-CSA #611	5'-nucleotidase is a zinc-containing enzyme involved in ATP hydrolysis and is bound to the membrane as an extracellular nucleotidase, or ectonucleotidase. Bacterial 5'-nucleotidases show a significant sequence homology to animal counterparts suggesting a common evolutionary origin. It is also related to 2',3'-cyclic phosphodiesterases and apyrases, all being part of the superfamily of metallophosphoesterases which also includes the Ser/Thr protein phosphatases and the purple acid phosphatases. The enzyme also has a UDP-sugar hydrolase activity which catalyses the periplasmic degradation of external UDP-glucose to uridine, glucose-1-phosphate and phosphate.	Defined by 12 residues: ASP:A-41HIS:A-43ASP:A-84ASN:A-116HIS:A-117ASP:A-120HIS:A-217HIS:A-252GLN:A-254ARG:A-375ARG:A-379ARG:A-410 \| Explore in 3D: M-CSA Motif Definition Up to 10 residues are supported for Structure Motif searching, this motif has 12 residues. EC: 3.1.3.5 (PDB Primary Data) EC: 3.6.1.45 (UniProt)

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.