这个词是什么意思？
Highly conserved nuclear RNA-protein complexes that function in RNA processing in the nucleus, including pre-mRNA splicing and pre-mRNA 3'-end processing in the nucleoplasm, and pre-rRNA processing in the nucleolus (see RIBONUCLEOPROTEINS, SMALL NUCLEOLAR).
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D017411 · MeSH 2026。
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