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Kaplan Qbank USMLE



Author2 Posts
  #1

What is the deficient enzyme? AND, What substances accumulate in the urine? AND what two amino acid begin this synthesis of porphrin molecule? AND what metallic ion cofactor is required.

  #2

deficient enzyme: uroporphyrinogen I synthetase
substances accumulate in the urine: porphobilinogen and aminoleuvalinic acid
precursors of porphrin molecule: glycine and succinly coA
metallic ion cofactor: Iron







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