Annotations: 4H7W

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	USB1-like	8045530	4004518	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	LigT-like	8090905	3001408	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	PF09749	e4h7wA1	A: beta barrels	X: LigT-like	H: LigT-related (From Topology)	T: LigT-related	F: PF09749	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.90.1140.10	Alpha Beta	Alpha-Beta Complex	Cyclic Phosphodiesterase	Chain: A,	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF09749	Uncharacterised conserved protein (HVSL)	Uncharacterised conserved protein	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	UPF0406 protein C16orf57	3'-5'-RNA exonuclease activity poly(U)-specific exoribonuclease activity, producing 3' uridine cyclic phosphate ends catalytic activity, acting on RNA RNA exonuclease activity, producing 5'-phosphomonoesters catalytic activity, acting on a nucleic acid 3'-5' exonuclease activity RNA exonuclease activity RNA nuclease activity hydrolase activity exonuclease activity, active with either ribo- or deoxyribonucleic acids and producing 5'-phosphomonoesters nuclease activity hydrolase activity, acting on ester bonds exonuclease activity catalytic activity 3'-5'-RNA exonuclease activity poly(U)-specific exoribonuclease activity, producing 3' uridine cyclic phosphate ends catalytic activity, acting on RNA RNA exonuclease activity, producing 5'-phosphomonoesters catalytic activity, acting on a nucleic acid 3'-5' exonuclease activity RNA exonuclease activity RNA nuclease activity hydrolase activity exonuclease activity, active with either ribo- or deoxyribonucleic acids and producing 5'-phosphomonoesters nuclease activity hydrolase activity, acting on ester bonds exonuclease activity catalytic activity lyase activity	RNA splicing cellular biosynthetic process cellular metabolic process RNA metabolic process primary metabolic process gene expression macromolecule biosynthetic process nucleic acid metabolic process nucleobase-containing compound metabolic process organic cyclic compound metabolic process organic substance metabolic process biosynthetic process organic substance biosynthetic process metabolic process RNA splicing cellular biosynthetic process cellular metabolic process RNA metabolic process primary metabolic process gene expression macromolecule biosynthetic process nucleic acid metabolic process nucleobase-containing compound metabolic process organic cyclic compound metabolic process organic substance metabolic process biosynthetic process organic substance biosynthetic process metabolic process cellular process RNA processing macromolecule metabolic process snRNA 3'-end processing snRNA metabolic process ncRNA metabolic process snRNA processing nucleic acid catabolic process RNA 3'-end processing U6 snRNA 3'-end processing	intercellular bridge cellular anatomical entity membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen intracellular organelle nucleoplasm organelle lumen organelle nuclear lumen

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR027521	U6 snRNA phosphodiesterase 1	Family

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	Pharos: Q9BQ65	poikiloderma with neutropenia dyskeratosis congenita chronic obstructive pulmonary disease congenital anemia intellectual disability Cytopenia

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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 R01GM133198.