蛋白質吸收與消化(Protein absorption and digestion)



1.蛋白質會由先由蛋白酶(proteolytic enzyme)分解,小的會直接被分解成胺基酸,大的蛋白質則先被分解成寡胜肽(oligopeptides)
2.去除N端和C端的tripeptide或dipeptide才容易進入小腸
3.寡胜肽會先經由胺基胜肽酵素(aminopeptidase)將含氮端切除,再經由羧肽酶(carboxypeptidase)切除COO-端,剩下中間的部分再由內切胜肽酵素(endopeptidase)分解成胺基酸,最後送往血液
▼消化道(Digestive tract) 顯示/隱藏(show/hide)

1 意見:

  1. Carboxypeptidase G is a lysosomal, thiol-dependent protease, which progressively cleaves γ-glutamyl pteroyl poly-γ-glutamate yielding pteroyl-α-glutamate (folic acid) and free glutamate. carboxypeptidase g

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