酿酒酵母外切-1,3-β-D-葡聚糖酶的分泌后修饰
Post-secretional modification of exo-1,3-beta-D-glucanases from Saccharomyces cerevisiae.
作者信息
Sánchez A, Nebreda A R, Villanueva J R, Villa T G
出版信息
Biochem J. 1983 Dec 1;215(3):471-4. doi: 10.1042/bj2150471.
Abstract
Exo-1,3-beta-D-glucanase secreted by Saccharomyces cerevisiae undergoes extracellular modifications in its carbohydrate moiety that change the affinity towards the lectin concanavalin A. The transition of negatively reacting enzyme form into positively reacting one depends on temperature. Results from experiments with glucono-delta-lactone and from treatments in vitro with hydrolases suggest a glycosidase-mediated mechanism.
摘要
酿酒酵母分泌的外切-1,3-β-D-葡聚糖酶在其碳水化合物部分经历细胞外修饰，从而改变其对凝集素伴刀豆球蛋白A的亲和力。酶的反应形式从阴性转变为阳性取决于温度。用葡萄糖酸-δ-内酯进行的实验结果以及体外水解酶处理结果表明存在糖苷酶介导的机制。
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