Sunday, February 5, 2012

Purines vs Pyrimidines

  1. Synthesis determining enzymes:
    • De novo PURINE: GLUTAMINE-PRPP amidotransferasa
    • De novo PYRIMIDINE: CARBAMOYL phosphate SYN-THETAse 2
    • UREA C1CLE: CARBAMOYL phosphate SYN-THETAse 1
  2. Rings:
    • PURINES (AG): 2
    • PYRIMIDINES (CTU): 1

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