Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
AStn1_Ce3k10A1 A: alpha arraysX: HTHH: HTHT: wingedF: Stn1_CECOD (1.6)
AStn1_C_likee3k10A2 A: alpha arraysX: HTHH: HTHT: wingedF: Stn1_C_likeECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
A1.10.10.1080 Mainly Alpha Orthogonal Bundle Arc Repressor Mutant, subunit A Stn1, N-terminal wHTH domainCATH (4.3.0)
A3.30.1370.230 Alpha Beta 2-Layer Sandwich Ribosomal Protein S8 Chain: A, domain 1CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
PF12659Telomere capping C-terminal wHTH (Stn1_C)Telomere capping C-terminal wHTHThis domain consists of tandem winged helix-turn-helix motifs. Stn1 and Ten1 are DNA-binding proteins with specificity for telomeric DNA substrates and both protect chromosome termini from unregulated resection and regulate telomere length. Stn1 comp ...This domain consists of tandem winged helix-turn-helix motifs. Stn1 and Ten1 are DNA-binding proteins with specificity for telomeric DNA substrates and both protect chromosome termini from unregulated resection and regulate telomere length. Stn1 complexes with Ten1 and Cdc13 to function as a telomere-specific replication protein A (RPA)-like complex [1-4]. These three interacting proteins associate with the telomeric overhang in budding yeast, whereas a single protein known as Pot1 (protection of telomeres-1) performs this function in fission yeast, and a two-subunit complex consisting of POT1 and TPP1 associates with telomeric ssDNA in humans. S.pombe has Stn1- and Ten1-like proteins that are essential for chromosome end protection. Stn1 orthologues exist in all species that have Pot1, whereas Ten1-like proteins can be found in all fungi. Fission yeast Stn1 and Ten1 localise at telomeres in a manner that correlates with the length of the ssDNA overhang, suggesting that they specifically associate with the telomeric ssDNA. Two separate protein complexes are required for chromosome end protection in fission yeast. Protection of telomeres by multiple proteins with OB-fold domains is conserved in eukaryotic evolution [2].
Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
Protein STN1

InterPro: Protein Family Classification InterPro Database Homepage