Methionin
Methionine (siok-siá: Met / M), sī chi̍t chióng an-ki-sng, R group bô ke̍k-sèng, toà tiong-sèng tiān. Jîn-thé bô-hoat-tō ka-tī ha̍p-sêng chit khoán an-ki-sng.
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