SNRPB2

Small nuclear ribonucleoprotein polypeptide B

PDB rendering based on 1a9n.

Available structures

Ortholog search: PDBe, RCSB

List of PDB id codes
1A9N

Identifiers

Symbols

SNRPB2 ; Msl1

External IDs

OMIM: 603520 MGI: 104805 HomoloGene: 37728 GeneCards: SNRPB2 Gene

Gene ontology
Molecular function	• nucleotide binding • protein binding • snRNA binding
Cellular component	• nucleus • nucleoplasm • spliceosomal complex • U2 snRNP • nucleolus • catalytic step 2 spliceosome
Biological process	• mRNA splicing, via spliceosome • mRNA processing • RNA splicing • gene expression
Sources: Amigo / QuickGO

RNA expression pattern

More reference expression data

Orthologs

Species

Human

Mouse

RefSeq (mRNA)

RefSeq (protein)

Location (UCSC)

Chr 20:
16.71 – 16.72 Mb

Chr 2:
143.06 – 143.07 Mb

PubMed search

U2 small nuclear ribonucleoprotein B is a protein that in humans is encoded by the SNRPB2 gene.^[1]^[2]

The protein encoded by this gene associates with stem loop IV of U2 small nuclear ribonucleoprotein (U2 snRNP) in the presence of snRNP-A'. The encoded protein may play a role in pre-mRNA splicing. Autoantibodies from patients with systemic lupus erythematosus frequently recognize epitopes on the encoded protein. Two transcript variants encoding the same protein have been found for this gene.^[2]

References

↑ Habets WJ, Sillekens PT, Hoet MH, Schalken JA, Roebroek AJ, Leunissen JA, van de Ven WJ, van Venrooij WJ (May 1987). "Analysis of a cDNA clone expressing a human autoimmune antigen: full-length sequence of the U2 small nuclear RNA-associated B" antigen". Proc Natl Acad Sci U S A 84 (8): 2421–5. doi:10.1073/pnas.84.8.2421. PMC 304663. PMID 2951739.
↑ 2.0 2.1 "Entrez Gene: SNRPB2 small nuclear ribonucleoprotein polypeptide B".

Feeney RJ, Zieve GW (1990). "Nuclear exchange of the U1 and U2 snRNP-specific proteins.". J. Cell Biol. 110 (4): 871–81. doi:10.1083/jcb.110.4.871. PMC 2116108. PMID 2139037.
Laitinen J, Saris P, Hölttä E, Pettersson I (1995). "U2-snRNP B" protein gene is an early growth-inducible gene.". J. Cell. Biochem. 58 (4): 490–8. doi:10.1002/jcb.240580412. PMID 7593271.
Hong W, Bennett M, Xiao Y et al. (1997). "Association of U2 snRNP with the spliceosomal complex E.". Nucleic Acids Res. 25 (2): 354–61. doi:10.1093/nar/25.2.354. PMC 146436. PMID 9016565.
Liu Q, Fischer U, Wang F, Dreyfuss G (1997). "The spinal muscular atrophy disease gene product, SMN, and its associated protein SIP1 are in a complex with spliceosomal snRNP proteins.". Cell 90 (6): 1013–21. doi:10.1016/S0092-8674(00)80367-0. PMID 9323129.
Moraitou M, Patrinou-Georgoula M, Guialis A (1998). "Structural/functional properties of a mammalian multi-component structure containing all major spliceosomal small nuclear ribonucleoprotein particles.". Biochem. J. 332 (1): 135–44. PMC 1219461. PMID 9576861.
Price SR, Evans PR, Nagai K (1998). "Crystal structure of the spliceosomal U2B"-U2A' protein complex bound to a fragment of U2 small nuclear RNA.". Nature 394 (6694): 645–50. doi:10.1038/29234. PMID 9716128.
Neubauer G, King A, Rappsilber J et al. (1998). "Mass spectrometry and EST-database searching allows characterization of the multi-protein spliceosome complex.". Nat. Genet. 20 (1): 46–50. doi:10.1038/1700. PMID 9731529.
Bühler D, Raker V, Lührmann R, Fischer U (2000). "Essential role for the tudor domain of SMN in spliceosomal U snRNP assembly: implications for spinal muscular atrophy.". Hum. Mol. Genet. 8 (13): 2351–7. doi:10.1093/hmg/8.13.2351. PMID 10556282.
Pellizzoni L, Charroux B, Rappsilber J et al. (2001). "A functional interaction between the survival motor neuron complex and RNA polymerase II.". J. Cell Biol. 152 (1): 75–85. doi:10.1083/jcb.152.1.75. PMC 2193649. PMID 11149922.
Deloukas P, Matthews LH, Ashurst J et al. (2002). "The DNA sequence and comparative analysis of human chromosome 20.". Nature 414 (6866): 865–71. doi:10.1038/414865a. PMID 11780052.
Fong YW, Zhou Q (2002). "Stimulatory effect of splicing factors on transcriptional elongation.". Nature 414 (6866): 929–33. doi:10.1038/414929a. PMID 11780068.
Jurica MS, Licklider LJ, Gygi SR et al. (2002). "Purification and characterization of native spliceosomes suitable for three-dimensional structural analysis.". RNA 8 (4): 426–39. doi:10.1017/S1355838202021088. PMC 1370266. PMID 11991638.
Chung S, Zhou Z, Huddleston KA et al. (2002). "Crooked neck is a component of the human spliceosome and implicated in the splicing process.". Biochim. Biophys. Acta 1576 (3): 287–97. doi:10.1016/S0167-4781(02)00368-8. PMID 12084575.
Strausberg RL, Feingold EA, Grouse LH et al. (2003). "Generation and initial analysis of more than 15,000 full-length human and mouse cDNA sequences.". Proc. Natl. Acad. Sci. U.S.A. 99 (26): 16899–903. doi:10.1073/pnas.242603899. PMC 139241. PMID 12477932.
Gerhard DS, Wagner L, Feingold EA et al. (2004). "The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC).". Genome Res. 14 (10B): 2121–7. doi:10.1101/gr.2596504. PMC 528928. PMID 15489334.
Rush J, Moritz A, Lee KA et al. (2005). "Immunoaffinity profiling of tyrosine phosphorylation in cancer cells.". Nat. Biotechnol. 23 (1): 94–101. doi:10.1038/nbt1046. PMID 15592455.
Ewing RM, Chu P, Elisma F et al. (2007). "Large-scale mapping of human protein-protein interactions by mass spectrometry.". Mol. Syst. Biol. 3 (1): 89. doi:10.1038/msb4100134. PMC 1847948. PMID 17353931.

PDB gallery

1a9n: CRYSTAL STRUCTURE OF THE SPLICEOSOMAL U2B-U2A' PROTEIN COMPLEX BOUND TO A FRAGMENT OF U2 SMALL NUCLEAR RNA

RNA-binding protein: Ribonucleoproteins

snRNP

70K/U1 spliceosomal RNA

SNRNP200

hnRNP

Other transcription

Telomerase

Translation

Ribosome

Vault ribonucleoprotein
particles

Major vault protein

Other

Signal recognition particle

Index of genetics

Description	Gene expression DNA replication cycle recombination repair binding proteins Transcription factors regulators nucleic acids RNA RNA binding proteins ribonucleoproteins repeated sequence modification Translation ribosome modification nexins Proteins domains Structure primary secondary tertiary quaternary

Disease	Replication and repair Transcription factor Transcription Translation

SNRPB2

References

Further reading