UniProt Protein Function: | Core component of the spliceosomal U1, U2, U4 and U5 small nuclear ribonucleoproteins (snRNPs), the building blocks of the spliceosome. Thereby, plays an important role in the splicing of cellular pre-mRNAs. Most spliceosomal snRNPs contain a common set of Sm proteins SNRPB, SNRPD1, SNRPD2, SNRPD3, SNRPE, SNRPF and SNRPG that assemble in a heptameric protein ring on the Sm site of the small nuclear RNA to form the core snRNP. As part of the U7 snRNP it is involved in histone 3'-end processing. |
NCBI Summary: | The protein encoded by this gene is one of several nuclear proteins that are found in common among U1, U2, U4/U6, and U5 small ribonucleoprotein particles (snRNPs). These snRNPs are involved in pre-mRNA splicing, and the encoded protein may also play a role in pre-mRNA splicing or snRNP structure. Autoantibodies from patients with systemic lupus erythematosus frequently recognize epitopes on the encoded protein. Two transcript variants encoding different isoforms (B and B') have been found for this gene. [provided by RefSeq, Jul 2008] |
UniProt Code: | P14678 |
NCBI GenInfo Identifier: | 134037 |
NCBI Gene ID: | 6628 |
NCBI Accession: | P14678.2 |
UniProt Secondary Accession: | P14678,Q15490, Q6IB35, Q9UIS5, |
UniProt Related Accession: | P14678 |
Molecular Weight: | 30,032 Da |
NCBI Full Name: | Small nuclear ribonucleoprotein-associated proteins B and B' |
NCBI Synonym Full Names: | small nuclear ribonucleoprotein polypeptides B and B1 |
NCBI Official Symbol: | SNRPB |
NCBI Official Synonym Symbols: | COD; CCMS; SNRPB1; SmB/B'; Sm-B/B'; snRNP-B; SmB/SmB' |
NCBI Protein Information: | small nuclear ribonucleoprotein-associated proteins B and B' |
UniProt Protein Name: | Small nuclear ribonucleoprotein-associated proteins B and B' |
UniProt Synonym Protein Names: | Sm protein B/B'; Sm-B/B'; SmB/B' |
Protein Family: | Small nuclear ribonucleoprotein-associated protein |
UniProt Gene Name: | SNRPB |
UniProt Entry Name: | RSMB_HUMAN |