Annotations: 4HJ5

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	POT1PC	e4hj5A2	A: beta barrels	X: OB-fold	H: Nucleic acid-binding proteins (From Topology)	T: Nucleic acid-binding proteins	F: POT1PC	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.40.50.140	Mainly Beta	Beta Barrel	OB fold (Dihydrolipoamide Acetyltransferase, E2P)	Nucleic acid-binding proteins	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF16686	ssDNA-binding domain of telomere protection protein (POT1PC)	ssDNA-binding domain of telomere protection protein	POT1PC is the ssDNA-binding domain on a family of fungal telomere protection protein 1 proteins. POT1PC is able to accommodate heterogeneous ssDNA ligands. Pot1 proteins are the proteins responsible for binding to and protecting the 3' single-stran ...	POT1PC is the ssDNA-binding domain on a family of fungal telomere protection protein 1 proteins. POT1PC is able to accommodate heterogeneous ssDNA ligands. Pot1 proteins are the proteins responsible for binding to and protecting the 3' single-stranded DNA (ssDNA) overhang at most eukaryotic telomeres [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Protection of telomeres protein 1	sequence-specific DNA binding DNA binding G-rich strand telomeric DNA binding binding organic cyclic compound binding sequence-specific single stranded DNA binding single-stranded telomeric DNA binding single-stranded DNA binding nucleic acid binding telomeric DNA binding enzyme regulator activity molecular function inhibitor activity molecular function regulator activity enzyme inhibitor activity sequence-specific DNA binding DNA binding G-rich strand telomeric DNA binding binding organic cyclic compound binding sequence-specific single stranded DNA binding single-stranded telomeric DNA binding single-stranded DNA binding nucleic acid binding telomeric DNA binding enzyme regulator activity molecular function inhibitor activity molecular function regulator activity enzyme inhibitor activity telomerase inhibitor activity	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 organic substance metabolic process organic substance biosynthetic 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 organic substance metabolic process organic substance 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 organic cyclic compound metabolic process organelle organization biosynthetic process organic cyclic compound 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 telomere capping	membrane-bounded organelle protein-containing complex intracellular anatomical structure protein-DNA complex nucleus nuclear protein-containing complex chromosome cellular anatomical entity intracellular membrane-bounded organelle chromosomal region intracellular organelle organelle telomere cap complex intracellular non-membrane-bounded organelle membrane-bounded organelle protein-containing complex intracellular anatomical structure protein-DNA complex nucleus nuclear protein-containing complex chromosome cellular anatomical entity intracellular membrane-bounded organelle chromosomal region intracellular organelle organelle telomere cap complex intracellular non-membrane-bounded organelle chromosome, telomeric repeat region chromosome, telomeric region shelterin complex non-membrane-bounded organelle nuclear telomere cap complex cytoplasm cytosol
B	DNA (5'-D(GPGPTPTPTPCPGPGP*T)-3')	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR032042	Protection of telomeres protein 1, ssDNA-binding domain	Domain
A	IPR011564	Telomeric single stranded DNA binding POT1/Cdc13	Domain
A	IPR028389	Protection of telomeres protein 1	Family
A	IPR012340	Nucleic acid-binding, OB-fold	Homologous Superfamily

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.