About: Ribonucleotide Reductase     Goto   Sponge   NotDistinct   Permalink

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AttributesValues
rdf:type
rdfs:label
  • Ribonucleotide Reductase
rdfs:subClassOf
Semantic_Type
  • Amino Acid, Peptide, or Protein
  • Enzyme
Preferred_Name
  • Ribonucleotide Reductase
UMLS_CUI
  • C0035547
ALT_DEFINITION
  • interconverts ribonucleotides (RNA precursors) and deoxyribonucleotides (DNA precursors) rate limiting to DNA replication in rapidly dividing cells, and therefore a potential target of antineoplastic drugs.CSP2000
Legacy_Concept_Name
  • Ribonucleotide_Reductase
FULL_SYN
  • Ribonucleotide ReductasePTNCI
  • EC 1.17.4.-SYNCI
DEFINITION
  • Ribonucleotide Reductase is a heterodimeric cytoplasmic enzyme essential in dividing cells that reduces ribonucleotides to deoxyribonucleotide precursors for DNA synthesis in S phase. It consists of two subunits, M1 Chain and M2 Chain. Complex allosteric control, mediated by deoxynucleoside triphosphates, and by ATP bound to the M1 subunit prevents DNA replication and cell proliferation. A substrate specificity site and a catalytic activity site regulate enzyme activity. A substrate-binding catalytic site on M1 is only formed in the presence of M2. Enzyme activity closely correlates with the cellular rate of growth and appears to vary with the cell cycle. (NCI)NCI
code
  • C17101
is someValuesFrom of
is Has_Target of
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