3KTQ

CRYSTAL STRUCTURE OF AN ACTIVE TERNARY COMPLEX OF THE LARGE FRAGMENT OF DNA POLYMERASE I FROM THERMUS AQUATICUS


Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
C [auth A]SCOP2B SuperfamilyNucleotide cyclase/DNA polymerase palm domain-like 8037492 3001272 SCOP2B (2022-06-29)
C [auth A]SCOP2B SuperfamilyRibonuclease H-like 8044539 3000143 SCOP2B (2022-06-29)
C [auth A]SCOP2B SuperfamilyNucleotide cyclase/DNA polymerase palm domain-like 8037492 3001272 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
C [auth A]DNA_pol_A_2nde3ktqA1 A: alpha arraysX: helical bundle in Bacillus stearothermophilus-like DNA polymerase I (From Topology)H: helical bundle in Bacillus stearothermophilus-like DNA polymerase I (From Topology)T: helical bundle in Bacillus stearothermophilus-like DNA polymerase IF: DNA_pol_A_2ndECOD (1.6)
C [auth A]DNA_pol_A_1ste3ktqA2 A: alpha bundlesX: fingers domain in bacteriophage RB69-like DNA polymerase I (From Topology)H: fingers domain in bacteriophage RB69-like DNA polymerase I (From Topology)T: fingers domain in bacteriophage RB69-like DNA polymerase IF: DNA_pol_A_1stECOD (1.6)
C [auth A]DNA_pol_A_3rde3ktqA3 A: a+b two layersX: Alpha-beta plaitsH: Adenylyl and guanylyl cyclase catalytic domain-likeT: Adenylyl and guanylyl cyclase catalytic domain-likeF: DNA_pol_A_3rdECOD (1.6)
C [auth A]Taq-exonuce3ktqA4 A: mixed a+b and a/bX: Ribonuclease H-likeH: Ribonuclease H-like (From Topology)T: Ribonuclease H-likeF: Taq-exonucECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
C [auth A]3.30.420.10 Alpha Beta 2-Layer Sandwich Nucleotidyltransferase domain 5CATH (4.3.0)
C [auth A]1.20.1060.10 Mainly Alpha Up-down Bundle Taq DNA Polymerase Chain T, domain 4CATH (4.3.0)
C [auth A]3.30.70.370 Alpha Beta 2-Layer Sandwich Alpha-Beta Plaits CATH (4.3.0)
C [auth A]1.10.150.20 Mainly Alpha Orthogonal Bundle DNA polymerase domain 1CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
C [auth A]PF09281Taq polymerase, exonuclease (Taq-exonuc)Taq polymerase, exonucleaseMembers of this family are found in prokaryotic Taq DNA polymerase, where they assume a ribonuclease H-like motif. The domain confers 5'-3' exonuclease activity to the polymerase [1].Domain
C [auth A]PF00476DNA polymerase family A (DNA_pol_A)DNA polymerase family A- Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
A [auth B]DNA (5'-D(*GP*AP*CP*CP*AP*CP*GP*GP*CP*GP*CP*DOC)-3')---
B [auth C]DNA (5'-D(*AP*GP*GP*GP*CP*GP*CP*CP*GP*TP*GP*GP*TP*C)-3')---
C [auth A]PROTEIN (LARGE FRAGMENT OF DNA POLYMERASE I) -