这个词是什么意思？
A RNA-binding protein that stimulates the cleavage of the 3' end of MRNA near the POLYADENYLATION site. It is a heterotrimer of 55-, 64- and 77-kDa subunits and combines with CLEAVAGE STIMULATION FACTOR to form a stable complex with mRNA that directs the 3' cleavage and polyadenylation reaction.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D039241 · MeSH 2026。
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