HNRPA2B1

From Wikipedia, the free encyclopedia

Heterogeneous nuclear ribonucleoprotein A2/B1

PDB rendering based on 1x4b.

Available structures: 1x4b

Identifiers

Symbol(s)

HNRPA2B1; HNRNPA2; HNRNPB1; HNRPA2; HNRPB1; RNPA2; SNRPB1

External IDs

OMIM: 600124 MGI: 104819 HomoloGene: 22992

Gene ontology
Molecular Function:	• nucleotide binding • nucleic acid binding • RNA binding • protein binding
Cellular Component:	• nucleus • spliceosome • heterogeneous nuclear ribonucleoprotein complex
Biological Process:	• nuclear mRNA splicing, via spliceosome • RNA splicing

RNA expression pattern

More reference expression data

Orthologs

Human

Mouse

Refseq

NM_002137 (mRNA)
NP_002128 (protein)

NM_016806 (mRNA)
NP_058086 (protein)

Location

Chr 7: 26.2 - 26.21 Mb

Chr 6: 51.39 - 51.4 Mb

Pubmed search

[1]

[2]

Heterogeneous nuclear ribonucleoprotein A2/B1, also known as HNRPA2B1, is a human gene.

This gene belongs to the A/B subfamily of ubiquitously expressed heterogeneous nuclear ribonucleoproteins (hnRNPs). The hnRNPs are RNA binding proteins and they complex with heterogeneous nuclear RNA (hnRNA). These proteins are associated with pre-mRNAs in the nucleus and appear to influence pre-mRNA processing and other aspects of mRNA metabolism and transport. While all of the hnRNPs are present in the nucleus, some seem to shuttle between the nucleus and the cytoplasm. The hnRNP proteins have distinct nucleic acid binding properties. The protein encoded by this gene has two repeats of quasi-RRM domains that bind to RNAs. This gene has been described to generate two alternatively spliced transcript variants which encode different isoforms.^[1] HnRNPA2B1 is an autoantigen in autoimmune diseases such as rheumatoid arthritis, systemic lupus erythematosus and mixed connective tissue disease. When referred to as an autoantigen, hnRNPA2B1 is also known as RA33.

[edit] References

^ Entrez Gene: HNRPA2B1 heterogeneous nuclear ribonucleoprotein A2/B1.

[edit] Further reading

Dawson SJ, White LA (1992). "Treatment of Haemophilus aphrophilus endocarditis with ciprofloxacin.". J. Infect. 24 (3): 317-20. PMID 1602151.
Bauw G, Rasmussen HH, van den Bulcke M, et al. (1990). "Two-dimensional gel electrophoresis, protein electroblotting and microsequencing: a direct link between proteins and genes.". Electrophoresis 11 (7): 528-36. doi:10.1002/elps.1150110703. PMID 1699755.
Wilk HE, Schaefer KP, Agris PF, et al. (1991). "U1 SnRNP association with HnRNP involves an initial non-specific splice-site independent interaction of U1 SnRNP protein with HnRNA.". Mol. Cell. Biochem. 106 (1): 55-66. PMID 1833625.
Burd CG, Swanson MS, Görlach M, Dreyfuss G (1990). "Primary structures of the heterogeneous nuclear ribonucleoprotein A2, B1, and C2 proteins: a diversity of RNA binding proteins is generated by small peptide inserts.". Proc. Natl. Acad. Sci. U.S.A. 86 (24): 9788-92. PMID 2557628.
Kumar A, Williams KR, Szer W (1986). "Purification and domain structure of core hnRNP proteins A1 and A2 and their relationship to single-stranded DNA-binding proteins.". J. Biol. Chem. 261 (24): 11266-73. PMID 3733753.
Faura M, Renau-Piqueras J, Bachs O, Bosser R (1996). "Differential distribution of heterogeneous nuclear ribonucleoproteins in rat tissues.". Biochem. Biophys. Res. Commun. 217 (2): 554-60. PMID 7503735.
Kozu T, Henrich B, Schäfer KP (1995). "Structure and expression of the gene (HNRPA2B1) encoding the human hnRNP protein A2/B1.". Genomics 25 (2): 365-71. PMID 7789969.
Biamonti G, Ruggiu M, Saccone S, et al. (1994). "Two homologous genes, originated by duplication, encode the human hnRNP proteins A2 and A1.". Nucleic Acids Res. 22 (11): 1996-2002. PMID 8029005.
Van Laer L, Van Camp G, Green ED, et al. (1997). "Physical mapping of the HOXA1 gene and the hnRPA2B1 gene in a YAC contig from human chromosome 7p14-p15.". Hum. Genet. 99 (6): 831-3. PMID 9187682.
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.
Montuenga LM, Zhou J, Avis I, et al. (1998). "Expression of heterogeneous nuclear ribonucleoprotein A2/B1 changes with critical stages of mammalian lung development.". Am. J. Respir. Cell Mol. Biol. 19 (4): 554-62. PMID 9761751.
Pancetti F, Bosser R, Krehan A, et al. (1999). "Heterogeneous nuclear ribonucleoprotein A2 interacts with protein kinase CK2.". Biochem. Biophys. Res. Commun. 260 (1): 17-22. doi:10.1006/bbrc.1999.0849. PMID 10381337.
Hamilton BJ, Nichols RC, Tsukamoto H, et al. (1999). "hnRNP A2 and hnRNP L bind the 3'UTR of glucose transporter 1 mRNA and exist as a complex in vivo.". Biochem. Biophys. Res. Commun. 261 (3): 646-51. doi:10.1006/bbrc.1999.1040. PMID 10441480.
Nichols RC, Wang XW, Tang J, et al. (2000). "The RGG domain in hnRNP A2 affects subcellular localization.". Exp. Cell Res. 256 (2): 522-32. doi:10.1006/excr.2000.4827. PMID 10772824.
Matsui M, Horiguchi H, Kamma H, et al. (2000). "Testis- and developmental stage-specific expression of hnRNP A2/B1 splicing isoforms, B0a/b.". Biochim. Biophys. Acta 1493 (1-2): 33-40. PMID 10978504.
Zhou J, Allred DC, Avis I, et al. (2001). "Differential expression of the early lung cancer detection marker, heterogeneous nuclear ribonucleoprotein-A2/B1 (hnRNP-A2/B1) in normal breast and neoplastic breast cancer.". Breast Cancer Res. Treat. 66 (3): 217-24. PMID 11510693.
Pioli PA, Rigby WF (2001). "The von Hippel-Lindau protein interacts with heteronuclear ribonucleoprotein a2 and regulates its expression.". J. Biol. Chem. 276 (43): 40346-52. doi:10.1074/jbc.M105391200. PMID 11517223.
Kim SH, Dierssen M, Ferreres JC, et al. (2002). "Increased protein levels of heterogeneous nuclear ribonucleoprotein A2/B1 in fetal Down syndrome brains.". J. Neural Transm. Suppl. (61): 273-80. PMID 11771750.
Andersen JS, Lyon CE, Fox AH, et al. (2002). "Directed proteomic analysis of the human nucleolus.". Curr. Biol. 12 (1): 1-11. PMID 11790298.
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. PMID 11991638.