Methionine synthase (MS)and betaine-homocysteine methyltransferase (BHMT)
are both zinc (Zn)-dependent methyltransferases and involved
in the methylation of homocysteine.
甲硫氨酸合成酶(MS)和甜菜鹼 - 同半胱氨酸甲基轉移酶(BHMT)
都是鋅(Zn)依賴性甲基轉移酶並且參與同半胱氨酸的甲基化。
Zn deficient (ZD; <1mg Zn/kg)缺鋅
pair fed (PF; 30mg Zn/kg) to the ZD group配對給ZD組
These results demonstrated that homocysteine homeostasis
appeared to be disturbed by Zn deficiency but not Zn supplementation
, and elevated serum homocysteine might be due to reduced expression
of MS during Zn deficiency.
血清同型半胱氨酸升高可能是由於缺鋅期間MS的表達降低。
因此上方講的同型半胱氨酸參與兩種主要的代謝途徑:活化甲基的循環