Ribonucleoproteins, Small Nuclear. Small Nuclear RNP . Small Nuclear Ribonucleoprotein . Small Nuclear Ribonucleoprotein Particle . Nuclear RNP, Small . Nuclear Ribonucleoprotein, Small . Nuclear Ribonucleoproteins, Small . RNP, Small Nuclear . Ribonucleoprotein, Small Nuclear . Small Nuclear Ribonucleoproteins . snRNP . RIBONUCLEOPROTEINS, SMALL, U3 . SMALL NUCLEAR RIBONUCLEOPROTEINS, U3 . U3 SNRNP . U3 SMALL NUCLEAR RIBONUCLEOPROTEINS . 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). . 1.00
RNA, Small Nuclear. Chromatin-Associated RNA . Small Molecular Weight RNA . Chromatin Associated RNA . RNA, Chromatin-Associated . Low Molecular Weight Nuclear RNA . Small Nuclear RNA . snRNA . U1 SMALL NUCLEAR RNA . U2 SMALL NUCLEAR RNA . U4 SMALL NUCLEAR RNA . U5 SMALL NUCLEAR RNA . U6 SMALL NUCLEAR RNA . U7 SMALL NUCLEAR RNA . U3 SMALL NUCLEAR RNA . Short chains of RNA (100-300 nucleotides long) that are abundant in the nucleus and usually complexed with proteins in snRNPs (RIBONUCLEOPROTEINS, SMALL NUCLEAR). Many function in the processing of messenger RNA precursors. Others, the snoRNAs (RNA, SMALL NUCLEOLAR), are involved with the processing of ribosomal RNA precursors. . 0.74
RNA, Small Nucleolar. snoRNA . Small Nucleolar RNA . Small nuclear RNAs that are involved in the processing of pre-ribosomal RNA in the nucleolus. Box C/D containing snoRNAs (U14, U15, U16, U20, U21 and U24-U63) direct site-specific methylation of various ribose moieties. Box H/ACA containing snoRNAs (E2, E3, U19, U23, and U64-U72) direct the conversion of specific uridines to pseudouridine. Site-specific cleavages resulting in the mature ribosomal RNAs are directed by snoRNAs U3, U8, U14, U22 and the snoRNA components of RNase MRP and RNase P. . 0.62
