Annotations: 5UN7

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	F_UNCLASSIFIED	e5un7A1	A: beta barrels	X: OB-fold	H: Nucleic acid-binding proteins (From Topology)	T: Nucleic acid-binding proteins	F: F_UNCLASSIFIED	ECOD (1.6)
A	PF21375	e5un7A2	A: a/b three-layered sandwiches	X: Restriction endonuclease-like	H: Protection of telomeres protein 1 (POT1) C-terminal insertion domain (From Topology)	T: Protection of telomeres protein 1 (POT1) C-terminal insertion domain	F: PF21375	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF21375	Protection of telomeres protein 1 (POT1), C-terminal insertion domain (POT1_C_insert)	Protection of telomeres protein 1 (POT1), C-terminal insertion domain	POT1 is responsible for binding to and protecting the 3' single-stranded DNA (ssDNA) overhang at most eukaryotic telomeres [1,2]. This is an insertion domain found at the C-terminal, described as Holliday junction resolvase-like domain (HJRL) in [1] ...	POT1 is responsible for binding to and protecting the 3' single-stranded DNA (ssDNA) overhang at most eukaryotic telomeres [1,2]. This is an insertion domain found at the C-terminal, described as Holliday junction resolvase-like domain (HJRL) in [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 binding organic cyclic compound binding nucleic acid binding telomeric DNA binding G-rich strand telomeric DNA binding sequence-specific single stranded DNA binding single-stranded telomeric DNA binding single-stranded DNA binding oxidized DNA binding oxidized purine DNA binding damaged DNA binding 8-hydroxy-2'-deoxyguanosine DNA binding sequence-specific DNA binding DNA binding binding organic cyclic compound binding nucleic acid binding telomeric DNA binding G-rich strand telomeric DNA binding sequence-specific single stranded DNA binding single-stranded telomeric DNA binding single-stranded DNA binding oxidized DNA binding oxidized purine DNA binding damaged DNA binding 8-hydroxy-2'-deoxyguanosine DNA binding G-rich single-stranded DNA binding DNA secondary structure binding telomeric D-loop binding D-loop DNA binding protein binding enzyme binding DEAD/H-box RNA helicase binding enzyme regulator activity molecular function inhibitor activity molecular function regulator activity enzyme inhibitor activity telomerase inhibitor activity	cellular biosynthetic process telomere organization RNA-templated DNA biosynthetic process nucleobase-containing compound metabolic process telomere maintenance via telomere lengthening cellular component organization nucleic acid biosynthetic process organic substance metabolic process organic substance biosynthetic process cellular component organization or biogenesis telomere maintenance via telomerase cellular metabolic process chromosome organization primary metabolic process cellular biosynthetic process telomere organization RNA-templated DNA biosynthetic process nucleobase-containing compound metabolic process telomere maintenance via telomere lengthening cellular component organization nucleic acid biosynthetic process organic substance metabolic process organic substance biosynthetic process cellular component organization or biogenesis telomere maintenance via telomerase cellular metabolic process chromosome organization primary metabolic process DNA metabolic process nucleobase-containing compound biosynthetic process macromolecule biosynthetic process nucleic acid metabolic process telomere maintenance organic cyclic compound metabolic process organelle organization biosynthetic process organic cyclic compound biosynthetic process metabolic process cellular process macromolecule metabolic process DNA biosynthetic process regulation of telomere maintenance regulation of cellular component organization regulation of cellular process regulation of DNA biosynthetic process regulation of primary metabolic process regulation of nucleobase-containing compound metabolic process regulation of biosynthetic process regulation of biological process biological regulation regulation of cellular metabolic process regulation of chromosome organization regulation of macromolecule metabolic process regulation of telomere maintenance via telomere lengthening regulation of organelle organization regulation of telomere maintenance via telomerase regulation of cellular biosynthetic process regulation of macromolecule biosynthetic process regulation of metabolic process regulation of DNA metabolic process cellular component biogenesis cellular component assembly telomere assembly telomeric loop disassembly telomeric D-loop disassembly DNA duplex unwinding DNA geometric change DNA conformation change regulation of catalytic activity negative regulation of biological process negative regulation of catalytic activity regulation of transferase activity negative regulation of cellular metabolic process negative regulation of transferase activity negative regulation of nucleobase-containing compound metabolic process negative regulation of metabolic process negative regulation of cellular biosynthetic process regulation of molecular function negative regulation of macromolecule biosynthetic process negative regulation of DNA biosynthetic process regulation of telomerase activity negative regulation of cellular process negative regulation of macromolecule metabolic process negative regulation of telomerase activity negative regulation of molecular function negative regulation of biosynthetic process negative regulation of DNA metabolic process negative regulation of telomere maintenance negative regulation of telomere maintenance via telomerase negative regulation of chromosome organization negative regulation of cellular component organization negative regulation of telomere maintenance via telomere lengthening negative regulation of organelle organization positive regulation of organelle organization regulation of ATP-dependent activity positive regulation of cellular component organization positive regulation of helicase activity positive regulation of ATP-dependent activity positive regulation of biological process positive regulation of molecular function positive regulation of DNA duplex unwinding positive regulation of cellular process positive regulation of catalytic activity regulation of DNA duplex unwinding positive regulation of chromosome organization positive regulation of DNA helicase activity regulation of helicase activity regulation of DNA helicase activity establishment of protein localization to telomere protein localization establishment of protein localization cellular localization protein localization to chromosome, telomeric region establishment of localization localization establishment of protein localization to organelle protein localization to chromosome cellular macromolecule localization macromolecule localization protein localization to organelle establishment of protein localization to chromosome positive regulation of macromolecule biosynthetic process positive regulation of metabolic process positive regulation of macromolecule metabolic process positive regulation of nucleobase-containing compound metabolic process positive regulation of DNA metabolic process positive regulation of cellular metabolic process positive regulation of biosynthetic process positive regulation of telomerase activity positive regulation of transferase activity positive regulation of DNA biosynthetic process positive regulation of cellular biosynthetic process regulation of DNA strand elongation DNA strand elongation positive regulation of DNA strand elongation cellular response to stimulus regulation of double-strand break repair response to stimulus regulation of cellular response to stress cellular response to stress response to stress regulation of response to stress regulation of double-strand break repair via nonhomologous end joining DNA repair double-strand break repair double-strand break repair via nonhomologous end joining regulation of DNA repair DNA damage response regulation of response to stimulus positive regulation of telomere maintenance via telomere lengthening positive regulation of telomere maintenance positive regulation of telomere maintenance via telomerase 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 membrane-enclosed lumen intracellular organelle lumen nucleoplasm organelle lumen nuclear lumen
B	Adrenocortical dysplasia protein homolog	sequence-specific DNA binding DNA binding binding organic cyclic compound binding nucleic acid binding telomeric DNA binding protein-containing complex binding protein binding DNA polymerase binding enzyme binding	cellular biosynthetic process telomere organization RNA-templated DNA biosynthetic process nucleobase-containing compound metabolic process telomere maintenance via telomere lengthening cellular component organization nucleic acid biosynthetic process organic substance metabolic process organic substance biosynthetic process cellular component organization or biogenesis telomere maintenance via telomerase cellular metabolic process chromosome organization primary metabolic process cellular biosynthetic process telomere organization RNA-templated DNA biosynthetic process nucleobase-containing compound metabolic process telomere maintenance via telomere lengthening cellular component organization nucleic acid biosynthetic process organic substance metabolic process organic substance biosynthetic process cellular component organization or biogenesis telomere maintenance via telomerase cellular metabolic process chromosome organization primary metabolic process DNA metabolic process nucleobase-containing compound biosynthetic process macromolecule biosynthetic process nucleic acid metabolic process telomere maintenance organic cyclic compound metabolic process organelle organization biosynthetic process organic cyclic compound biosynthetic process metabolic process cellular process macromolecule metabolic process DNA biosynthetic process developmental process multicellular organism development multicellular organismal process segmentation anatomical structure development pattern specification process regionalization skeletal system development system development urogenital system development cellular component biogenesis cellular component assembly telomere assembly limb development appendage development embryonic limb morphogenesis embryonic morphogenesis embryonic appendage morphogenesis embryo development anatomical structure morphogenesis appendage morphogenesis limb morphogenesis negative regulation of telomere maintenance regulation of cellular process negative regulation of biological process negative regulation of telomere maintenance via telomerase regulation of DNA biosynthetic process negative regulation of cellular metabolic process regulation of primary metabolic process negative regulation of chromosome organization negative regulation of nucleobase-containing compound metabolic process regulation of nucleobase-containing compound metabolic process regulation of biological process negative regulation of cellular component organization negative regulation of metabolic process regulation of cellular metabolic process regulation of chromosome organization regulation of telomere maintenance via telomere lengthening regulation of organelle organization negative regulation of cellular biosynthetic process negative regulation of macromolecule biosynthetic process regulation of macromolecule biosynthetic process regulation of metabolic process negative regulation of DNA biosynthetic process regulation of DNA metabolic process regulation of telomere maintenance regulation of cellular component organization negative regulation of telomere maintenance via telomere lengthening negative regulation of cellular process negative regulation of macromolecule metabolic process regulation of biosynthetic process biological regulation regulation of macromolecule metabolic process regulation of telomere maintenance via telomerase regulation of cellular biosynthetic process negative regulation of organelle organization negative regulation of biosynthetic process negative regulation of DNA metabolic process establishment of protein localization to telomere protein localization establishment of protein localization cellular localization protein localization to chromosome, telomeric region establishment of localization localization establishment of protein localization to organelle protein localization to chromosome cellular macromolecule localization macromolecule localization protein localization to organelle establishment of protein localization to chromosome nitrogen compound transport transport organic substance transport intracellular transport protein transport establishment of localization in cell intracellular protein transport regulation of catalytic activity regulation of transferase activity positive regulation of macromolecule biosynthetic process positive regulation of metabolic process positive regulation of macromolecule metabolic process positive regulation of nucleobase-containing compound metabolic process regulation of molecular function positive regulation of DNA metabolic process regulation of telomerase activity positive regulation of biological process positive regulation of cellular metabolic process positive regulation of molecular function positive regulation of biosynthetic process positive regulation of cellular process positive regulation of telomerase activity positive regulation of transferase activity positive regulation of catalytic activity positive regulation of DNA biosynthetic process positive regulation of cellular biosynthetic process positive regulation of organelle organization positive regulation of telomere maintenance via telomere lengthening positive regulation of telomere maintenance positive regulation of chromosome organization positive regulation of telomere maintenance via telomerase positive regulation of cellular component organization cellular response to stimulus telomere maintenance in response to DNA damage response to stimulus cellular response to stress response to stress protection from non-homologous end joining at telomere telomere capping DNA damage response regulation of DNA binding regulation of binding regulation of telomeric DNA binding positive regulation of binding positive regulation of DNA binding regulation of single-stranded telomeric DNA binding positive regulation of telomeric DNA binding positive regulation of single-stranded telomeric DNA binding	membrane-bounded organelle protein-containing complex intracellular anatomical structure catalytic complex nucleus nuclear protein-containing complex intracellular membrane-bounded organelle cellular anatomical entity intracellular organelle telomerase holoenzyme complex organelle ribonucleoprotein complex protein-DNA complex chromosome membrane-bounded organelle protein-containing complex intracellular anatomical structure catalytic complex nucleus nuclear protein-containing complex intracellular membrane-bounded organelle cellular anatomical entity intracellular organelle telomerase holoenzyme complex organelle ribonucleoprotein complex protein-DNA complex chromosome chromosomal region 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 membrane-enclosed lumen intracellular organelle lumen nucleoplasm organelle lumen nuclear lumen nuclear body

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	IPR048953	Protection of telomeres protein 1, C-terminal insertion domain	Domain
A	IPR028389	Protection of telomeres protein 1	Family
A	IPR012340	Nucleic acid-binding, OB-fold	Homologous Superfamily
B	IPR028631	Adrenocortical dysplasia protein	Family
B	IPR019437	Shelterin complex subunit TPP1/Est3	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	Pharos: Q9NUX5	melanoma B-cell chronic lymphocytic leukemia melanoma, cutaneous malignant, susceptibility to, 10 lymphoid leukemia anaplastic oligodendroglioma Chromosome Aberrations familial melanoma mixed glioma skin cancer oligodendroglioma skin neoplasm cutaneous melanoma glioma susceptibility 9 malignant glioma ovarian cancer melanoma B-cell chronic lymphocytic leukemia melanoma, cutaneous malignant, susceptibility to, 10 lymphoid leukemia anaplastic oligodendroglioma Chromosome Aberrations familial melanoma mixed glioma skin cancer oligodendroglioma skin neoplasm cutaneous melanoma glioma susceptibility 9 malignant glioma ovarian cancer progressive supranuclear palsy lung cancer medulloblastoma Pick disease glioma lung carcinoma malignant ependymoma plasma cell myeloma chromosomal anomaly
B	Pharos: Q96AP0	dyskeratosis congenita, autosomal dominant 6 dyskeratosis congenita familial melanoma Hoyeraal-Hreidarsson syndrome gastric carcinoma osteosarcoma DYSKERATOSIS CONGENITA, AUTOSOMAL RECESSIVE 7 hematopoietic and lymphoid system neoplasm subependymal giant cell astrocytoma

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 R01GM133198.