这个词是什么意思？
A family of enzymes that catalyze the exonucleolytic cleavage of RNA. It includes EC 3.1.13.-, EC 3.1.14.-, EC 3.1.15.-, and EC 3.1.16.-. EC 3.1.-
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D005095 · MeSH 2026。
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