Annotations: 2HWX

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	PIN_4	e2hwxA1	A: a/b three-layered sandwiches	X: HAD domain-like	H: HAD domain-related	T: PIN domain-like	F: PIN_4	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.40.50.1010	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	5'-nuclease	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF13638	PIN domain (PIN_4)	PIN domain	Members of this family of bacterial domains are predicted to be RNases (from similarities to 5'-exonucleases).	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Telomerase-binding protein EST1A	ribonucleoprotein complex binding protein-containing complex binding binding RNA binding organic cyclic compound binding nucleic acid binding sequence-specific DNA binding DNA binding telomeric DNA binding telomerase RNA binding endonuclease activity nuclease activity hydrolase activity, acting on ester bonds catalytic activity, acting on RNA ribonucleoprotein complex binding protein-containing complex binding binding RNA binding organic cyclic compound binding nucleic acid binding sequence-specific DNA binding DNA binding telomeric DNA binding telomerase RNA binding endonuclease activity nuclease activity hydrolase activity, acting on ester bonds catalytic activity, acting on RNA RNA endonuclease activity catalytic activity, acting on a nucleic acid RNA nuclease activity hydrolase activity catalytic activity protein binding DNA polymerase binding enzyme binding cation binding ion binding metal ion binding small molecule binding	regulation of telomere maintenance regulation of cellular component organization regulation of cellular process cellular biosynthetic process telomere organization regulation of DNA biosynthetic process regulation of primary metabolic process RNA-templated DNA biosynthetic process telomere maintenance via telomere lengthening cellular component organization nucleobase-containing compound metabolic process nucleic acid biosynthetic process cellular component organization or biogenesis regulation of nucleobase-containing compound metabolic process regulation of telomere maintenance regulation of cellular component organization regulation of cellular process cellular biosynthetic process telomere organization regulation of DNA biosynthetic process regulation of primary metabolic process RNA-templated DNA biosynthetic process telomere maintenance via telomere lengthening cellular component organization nucleobase-containing compound metabolic process nucleic acid biosynthetic process cellular component organization or biogenesis regulation of nucleobase-containing compound metabolic process regulation of biosynthetic process regulation of biological process telomere maintenance via telomerase cellular metabolic process biological regulation chromosome organization primary metabolic process regulation of cellular metabolic process DNA metabolic process regulation of chromosome organization regulation of macromolecule metabolic process regulation of telomere maintenance via telomere lengthening nucleobase-containing compound biosynthetic process macromolecule biosynthetic process nucleic acid metabolic process regulation of organelle organization regulation of telomere maintenance via telomerase telomere maintenance regulation of cellular biosynthetic process organelle organization biosynthetic process cellular process metabolic process regulation of macromolecule biosynthetic process macromolecule metabolic process regulation of metabolic process DNA biosynthetic process regulation of DNA metabolic process cellular localization nitrogen compound transport nucleocytoplasmic transport transport nuclear transport mRNA transport localization mRNA export from nucleus establishment of localization in cell RNA localization nuclear export nucleobase-containing compound transport RNA transport nucleic acid transport intracellular transport gene expression establishment of localization RNA export from nucleus establishment of RNA localization macromolecule localization regulation of dephosphorylation dephosphorylation regulation of phosphate metabolic process phosphate-containing compound metabolic process regulation of phosphorus metabolic process phosphorus metabolic process catabolic process nuclear-transcribed mRNA catabolic process, nonsense-mediated decay negative regulation of biological process RNA metabolic process negative regulation of cellular metabolic process macromolecule catabolic process negative regulation of cellular process RNA catabolic process negative regulation of macromolecule metabolic process mRNA catabolic process nuclear-transcribed mRNA catabolic process negative regulation of metabolic process mRNA metabolic process negative regulation of cellular biosynthetic process nucleobase-containing compound catabolic process regulation of gene expression negative regulation of gene expression negative regulation of biosynthetic process negative regulation of macromolecule biosynthetic process nucleic acid catabolic process negative regulation of telomere maintenance negative regulation of chromosome organization negative regulation of nucleobase-containing compound metabolic process negative regulation of cellular component organization negative regulation of organelle organization telomere capping negative regulation of telomere capping negative regulation of DNA metabolic process regulation of telomere capping	membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membrane-bounded organelle cellular anatomical entity nucleolus intracellular organelle lumen intracellular organelle organelle lumen organelle intracellular non-membrane-bounded organelle nuclear lumen non-membrane-bounded organelle membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membrane-bounded organelle cellular anatomical entity nucleolus intracellular organelle lumen intracellular organelle organelle lumen organelle intracellular non-membrane-bounded organelle nuclear lumen non-membrane-bounded organelle protein-containing complex catalytic complex nuclear protein-containing complex telomerase holoenzyme complex ribonucleoprotein complex cytoplasm cytosol chromosome chromosome, telomeric region chromosomal region

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR019458	Telomerase activating protein Est1-like, N-terminal	Domain
A	IPR018834	DNA/RNA-binding domain, Est1-type	Domain
A	IPR011990	Tetratricopeptide-like helical domain superfamily	Homologous Superfamily
A	IPR045153	Est1/Ebs1-like	Family
A	IPR002716	PIN domain	Domain
A	IPR029060	PIN-like domain superfamily	Homologous Superfamily

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	Pharos: Q86US8	attention deficit hyperactivity disorder, inattentive type heart disease osteoarthritis autism spectrum disorder myocardial infarction squamous cell carcinoma carcinoma of esophagus non-alcoholic fatty liver disease vascular disease

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.