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Kaplan Qbank USMLE



Author6 Posts
  #1

which vit. could do this?

  #2

vitamin B12

  #3

smiling face and...THF and B6
i don't see the relationship with B6 sad

  #4

homocystinuria is becos of 2 enz deficiency
1. homocysyeine methyl transferase which require B 12 and THF as cofactor
2. cystathionine synthase which require B 6 as the cofactor
so B6, B 12 and folate deficiency also cause mild homocytinuria

  #5

cystathionine synthase converts homocysteine to cystathionine with B6 as cofactor

  #6

wau, great.







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