[Sialyltransferase in human malignant melanoma].
作者信息
Simonnet H, Martel M B
出版信息
Clin Chim Acta. 1976 Oct 1;72(1):3308. doi: 10.1016/0009-8981(76)90034-6.
PMID:10104
Abstract
A glycosyltransferase, CMP-N-acetylneuraminic acid : glycoprotein sialyltransferase was found in human malignant melanoma. Activities were measured with desialized glycoprotein as an exogenous acceptor. The enzyme was characterized by means of its pH optimum, 5.5, temperature optimum, 30 degrees C, KM values, 10 muM for the sugar nucleotide and 0.3 mM for desialized glycoprotein. It did not require exogenously added metal ions but was slightly stimulated by Mg2+. It required detergent for optimal activity. The effect of nucleotides and sugar nucleotides on enzyme activity has been investigated.
摘要
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