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AttributesValues
rdf:type
rdfs:label
  • Negative Regulation of G1 Phase
rdfs:subClassOf
Semantic_Type
  • Phenomenon or Process
Preferred_Name
  • Negative Regulation of G1 Phase
UMLS_CUI
  • C1517342
Legacy_Concept_Name
  • G1_Arrest
FULL_SYN
  • G1 BlockSYNCI
  • Negative Regulation of G1 PhasePTNCI
  • G1 ArrestSYNCI
DEFINITION
  • G1 Arrest consists of cellular biochemical mechanisms, responsive to diverse governing conditions (DNA damage, contact inhibition, growth factors, etc.), that control cellular progress through the G1 phase of the cell cycle. G1 progress is controlled by de/phosphorylated cyclin/CDK complexes. During G1, cycD/CDK phosphorylation of Rb/HDAC repressor permits E2F/DP1 transcription of genes that promote the G1/S switch and DNA replication. p53 induces p21 inhibition of cycD/CDK; Mdm2 inhibits p53/p21. TGF-b induces p15 inhibition of cycD/CDK. cAMP induces p27 inhibition of cycD/CDK. GSK3b induction of cycD degradation, and INK4, Kip, and Cdc25A regulate cycD/CDK activity.NCI
code
  • C19816
is someValuesFrom of
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