Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
ASCOP2B SuperfamilyThymidylate synthase/dCMP hydroxymethylase 8036195 3000544 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
AThymidylat_synte1lcbA1 A: a+b two layersX: Thymidylate synthase/dCMP hydroxymethylase (From Topology)H: Thymidylate synthase/dCMP hydroxymethylase (From Topology)T: Thymidylate synthase/dCMP hydroxymethylaseF: Thymidylat_syntECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
A3.30.572.10 Alpha Beta 2-Layer Sandwich Thymidylate Synthase Chain ACATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
PF00303Thymidylate synthase (Thymidylat_synt)Thymidylate synthaseThis is a family of proteins that are flavin-dependent thymidylate synthases.Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
THYMIDYLATE SYNTHASE

Structure Motif Annotation: Mechanism and Catalytic Site Atlas M-CSA Database Homepage

ChainsEnzyme NameDescriptionCatalytic Residues
thymidylate synthase  M-CSA #31

Thymidylate synthase (TS) is an essential enzyme for the de novo synthesis of thymidine 5'-monophosphate (dTMP) via the addition of a methyl group to 2'-deoxyuridine 5'monophosphate (dUMP) from folate. TS is a highly conserved enzyme. dTMP is a nucleotide required for DNA synthesis, and therefore, it is an important drug target, especially for anticancer and antineoplastic drugs. TS also plays a role in regulating tissue folate levels.

TS is a bisubstrate enzyme in which the cofactor, CH2 H4 folate, serves as both the one-carbon donor to the substrate dUMP and, subsequently, as the reductant. A one-carbon unit and hydride are transferred from different sites on the cofactor, and large contributions to the catalytic power of TS are achieved through the dynamic alignment and realignment of reactants at these chemical steps.

Defined by 6 residues: GLU:A-60TRP:A-82TYR:A-146CYS:A-198ARG:A-218ASP:A-221
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