Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
DSCOP2B SuperfamilyNucleic acid-binding proteins8043961 3000135 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
CPF15490e8sojC1 A: beta barrelsX: OB-foldH: Nucleic acid-binding proteins (From Topology)T: Nucleic acid-binding proteinsF: PF15490ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
PF15489CST, telomere maintenance, complex subunit CTC1 (CTC1)CST, telomere maintenance, complex subunit CTC1- Family
PF01336OB-fold nucleic acid binding domain (tRNA_anti-codon)OB-fold nucleic acid binding domainThis family contains OB-fold domains that bind to nucleic acids [4]. The family includes the anti-codon binding domain of lysyl, aspartyl, and asparaginyl -tRNA synthetases (See Pfam:PF00152). Aminoacyl-tRNA synthetases catalyse the addition of an a ...This family contains OB-fold domains that bind to nucleic acids [4]. The family includes the anti-codon binding domain of lysyl, aspartyl, and asparaginyl -tRNA synthetases (See Pfam:PF00152). Aminoacyl-tRNA synthetases catalyse the addition of an amino acid to the appropriate tRNA molecule EC:6.1.1.-. This family also includes part of RecG helicase involved in DNA repair. Replication factor A is a hetero-trimeric complex, that contains a subunit in this family [2,3]. This domain is also found at the C-terminus of bacterial DNA polymerase III alpha chain.
Domain
PF09170CST, complex subunit STN1, C terminal (STN1_2)CST, complex subunit STN1, C terminalSTN1 is a component of the CST complex, a complex that binds to single-stranded DNA and is required for protecting telomeres from DNA degradation. The CST complex binds single-stranded DNA with high affinity in a sequence-independent manner, while is ...STN1 is a component of the CST complex, a complex that binds to single-stranded DNA and is required for protecting telomeres from DNA degradation. The CST complex binds single-stranded DNA with high affinity in a sequence-independent manner, while isolated subunits bind DNA with low affinity on their own. In addition to telomere protection, the CST complex probably has a more general role in DNA metabolism at non-telomeric sites. This entry represents the C-terminal region of Stn1 which has two winged helix-turn-helix (wHTH) motifs, wHTH1 and wHTH2 [2,4]. wHTH1 is structurally similar to that in RPA32 with a large insertion between helices alpha2 and alpha3, unique to Stn1, that may allow interaction with a different set of proteins that function at telomeres such as Ctc1 [4]. wHTH2 is most similar to the DNA-binding wHTH motifs of the pur operon repressor and RepE replication initiator, but it does not bind double-stranded DNA [5].
Domain
PF15490Telomere-capping, CST complex subunit (Ten1_2)Telomere-capping, CST complex subunitTen1_2 is a family of primarily plant and vertebrate telomere-capping proteins that is evolutionarily related to the mostly fungal family of Ten1, Pfam:PF12658.Domain
PF21375Protection of telomeres protein 1 (POT1), C-terminal insertion domain (POT1_C_insert)Protection of telomeres protein 1 (POT1), C-terminal insertion domainPOT1 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
PF16686ssDNA-binding domain of telomere protection protein (POT1PC)ssDNA-binding domain of telomere protection proteinPOT1PC 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

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
CST complex subunit CTC1
CST complex subunit STN1
CST complex subunit TEN1
Protection of telomeres protein 1

InterPro: Protein Family Classification InterPro Database Homepage

ChainsAccessionNameType
IPR006061Solute-binding family 1, conserved siteConserved Site
IPR006060Maltose/Cyclodextrin ABC transporter, substrate-binding proteinFamily
IPR006059Bacterial-type extracellular solute-binding proteinFamily
IPR042617CST complex subunit CTC1-likeFamily
IPR029156CST complex subunit CTC1Family
IPR036388Winged helix-like DNA-binding domain superfamilyHomologous Superfamily
IPR036390Winged helix DNA-binding domain superfamilyHomologous Superfamily
IPR042082CST complex subunit Stn1, wHTH1 motif superfamilyHomologous Superfamily
IPR040260Replication factor A protein-likeFamily
IPR004365OB-fold nucleic acid binding domain, AA-tRNA synthetase-typeDomain
IPR012340Nucleic acid-binding, OB-foldHomologous Superfamily
IPR014647CST complex subunit Stn1Family
IPR015253Stn1, C-terminalDomain
IPR002527Picornavirus 2B proteinDomain
IPR043128Reverse transcriptase/Diguanylate cyclase domainHomologous Superfamily
IPR000199Peptidase C3A/C3B, picornaviralDomain
IPR001676Picornavirus capsidDomain
IPR014759Helicase, superfamily 3, single-stranded RNA virusDomain
IPR009017Green fluorescent proteinHomologous Superfamily
IPR027417P-loop containing nucleoside triphosphate hydrolaseHomologous Superfamily
IPR000081Peptidase C3, picornavirus core protein 2ADomain
IPR029053Viral coat protein subunitHomologous Superfamily
IPR009003Peptidase S1, PA clanHomologous Superfamily
IPR033703Picornavirus/Calicivirus coat proteinDomain
IPR000786Green fluorescent protein, GFPFamily
IPR011584Green fluorescent protein-relatedFamily
IPR036203Poliovirus core protein 3a, soluble domainHomologous Superfamily
IPR001205RNA-directed RNA polymerase, C-terminal domainDomain
IPR003593AAA+ ATPase domainDomain
IPR003138Picornavirus coat protein VP4Family
IPR043502DNA/RNA polymerase superfamilyHomologous Superfamily
IPR044067Picornavirales 3C/3C-like protease domainDomain
IPR014838Poliovirus 3A protein-likeDomain
IPR043504Peptidase S1, PA clan, chymotrypsin-like foldHomologous Superfamily
IPR007094RNA-directed RNA polymerase, catalytic domainDomain
IPR000605Helicase, superfamily 3, single-stranded DNA/RNA virusDomain
IPR028631Adrenocortical dysplasia proteinFamily
IPR019437Shelterin complex subunit TPP1/Est3Domain
IPR029146CST complex subunit Ten1, animal and plant typeFamily
IPR012340Nucleic acid-binding, OB-foldHomologous Superfamily
IPR032042Protection of telomeres protein 1, ssDNA-binding domainDomain
IPR011564Telomeric single stranded DNA binding POT1/Cdc13Domain
IPR048953Protection of telomeres protein 1, C-terminal insertion domainDomain
IPR028389Protection of telomeres protein 1Family
IPR012340Nucleic acid-binding, OB-foldHomologous Superfamily

Pharos: Disease Associations Pharos Homepage Annotation

ChainsDrug Target  Associated Disease
PharosQ2NKJ3
PharosQ96AP0
PharosQ9NUX5