FXR2

Fragile X mental retardation syndrome-related protein 2 is a protein that in humans is encoded by the FXR2 gene.

FXR2
Available structures PDB Ortholog search: PDBe RCSB List of PDB id codes 3H8Z
Identifiers
Aliases	FXR2, FMR1L2, FXR2P, FMR1 autosomal homolog 2
External IDs	OMIM: 605339; MGI: 1346074; HomoloGene: 21014; GeneCards: FXR2; OMA:FXR2 - orthologs
Gene location (Human) Chr. Chromosome 17 (human) Band 17p13.1 Start 7,591,230 bp End 7,614,897 bp
Gene location (Mouse) Chr. Chromosome 11 (mouse) Band 11 B3|11 42.86 cM Start 69,523,816 bp End 69,544,123 bp
RNA expression pattern Bgee Human Mouse (ortholog) Top expressed in apex of heart gastrocnemius muscle muscle of thigh superior vestibular nucleus left ventricle pons right hemisphere of cerebellum inferior ganglion of vagus nerve right auricle ventral tegmental area Top expressed in neural layer of retina dentate gyrus of hippocampal formation granule cell muscle of thigh superior frontal gyrus primary visual cortex ventricular zone cerebellar cortex epiblast spermatocyte lip More reference expression data BioGPS More reference expression data
Gene ontology Molecular function protein heterodimerization activity nucleic acid binding protein binding mRNA binding protein homodimerization activity identical protein binding RNA binding mRNA 3'-UTR binding translation regulator activity Cellular component polysome cytosolic large ribosomal subunit extracellular exosome membrane nucleus cytoplasm cytosol postsynaptic density axon ribonucleoprotein granule cytoplasmic ribonucleoprotein granule soma dendritic spine Biological process negative regulation of translation regulation of translation regulation of mRNA stability positive regulation of translation Sources:Amigo / QuickGO
Orthologs Species Human Mouse Entrez 9513 23879 Ensembl ENSG00000129245 ENSMUSG00000018765 UniProt P51116 Q9WVR4 Q6P5B5 RefSeq (mRNA) NM_004860 NM_011814 RefSeq (protein) NP_004851 NP_035944 Location (UCSC) Chr 17: 7.59 – 7.61 Mb Chr 11: 69.52 – 69.54 Mb PubMed search
Wikidata
View/Edit Human View/Edit Mouse

Function

The protein encoded by this gene is an RNA binding protein containing two KH domains and one RCG box, which is similar to FMRP and FXR1. It associates with polyribosomes, predominantly with 60S large ribosomal subunits. This encoded protein may self-associate or interact with FMRP and FXR1. It may have a role in the development of fragile X mental retardation syndrome.

Interactions

FXR2 has been shown to interact with:

• CYFIP2,
• FMR1,
• FXR1, and
• LCMT1.

Further reading

• Siomi MC, Zhang Y, Siomi H, Dreyfuss G (Jul 1996). "Specific sequences in the fragile X syndrome protein FMR1 and the FXR proteins mediate their binding to 60S ribosomal subunits and the interactions among them". Molecular and Cellular Biology. 16 (7): 3825–32. doi:10.1128/mcb.16.7.3825. PMC 231379. PMID 8668200.
• Joseph DR (Jan 1998). "The rat androgen-binding protein (ABP/SHBG) gene contains triplet repeats similar to unstable triplets: evidence that the ABP/SHBG and the fragile X-related 2 genes overlap". Steroids. 63 (1): 2–4. doi:10.1016/S0039-128X(97)00087-1. PMID 9437788. S2CID 12825993.
• Tamanini F, Bontekoe C, Bakker CE, van Unen L, Anar B, Willemsen R, Yoshida M, Galjaard H, Oostra BA, Hoogeveen AT (May 1999). "Different targets for the fragile X-related proteins revealed by their distinct nuclear localizations". Human Molecular Genetics. 8 (5): 863–9. doi:10.1093/hmg/8.5.863. hdl:1765/9073. PMID 10196376.
• Bardoni B, Schenck A, Mandel JL (Dec 1999). "A novel RNA-binding nuclear protein that interacts with the fragile X mental retardation (FMR1) protein". Human Molecular Genetics. 8 (13): 2557–66. doi:10.1093/hmg/8.13.2557. PMID 10556305.
• Ceman S, Brown V, Warren ST (Dec 1999). "Isolation of an FMRP-associated messenger ribonucleoprotein particle and identification of nucleolin and the fragile X-related proteins as components of the complex". Molecular and Cellular Biology. 19 (12): 7925–32. doi:10.1128/mcb.19.12.7925. PMC 84877. PMID 10567518.
• Cousin P, Billotte J, Chaubert P, Shaw P (Jan 2000). "Physical map of 17p13 and the genes adjacent to p53". Genomics. 63 (1): 60–8. doi:10.1006/geno.1999.6062. PMID 10662545.
• Tamanini F, Kirkpatrick LL, Schonkeren J, van Unen L, Bontekoe C, Bakker C, Nelson DL, Galjaard H, Oostra BA, Hoogeveen AT (Jun 2000). "The fragile X-related proteins FXR1P and FXR2P contain a functional nucleolar-targeting signal equivalent to the HIV-1 regulatory proteins". Human Molecular Genetics. 9 (10): 1487–93. doi:10.1093/hmg/9.10.1487. hdl:1765/9408. PMID 10888599.
• Schenck A, Bardoni B, Moro A, Bagni C, Mandel JL (Jul 2001). "A highly conserved protein family interacting with the fragile X mental retardation protein (FMRP) and displaying selective interactions with FMRP-related proteins FXR1P and FXR2P". Proceedings of the National Academy of Sciences of the United States of America. 98 (15): 8844–9. Bibcode:2001PNAS...98.8844S. doi:10.1073/pnas.151231598. PMC 37523. PMID 11438699.
• Brill LM, Salomon AR, Ficarro SB, Mukherji M, Stettler-Gill M, Peters EC (May 2004). "Robust phosphoproteomic profiling of tyrosine phosphorylation sites from human T cells using immobilized metal affinity chromatography and tandem mass spectrometry". Analytical Chemistry. 76 (10): 2763–72. doi:10.1021/ac035352d. PMID 15144186.
• Rush J, Moritz A, Lee KA, Guo A, Goss VL, Spek EJ, Zhang H, Zha XM, Polakiewicz RD, Comb MJ (Jan 2005). "Immunoaffinity profiling of tyrosine phosphorylation in cancer cells". Nature Biotechnology. 23 (1): 94–101. doi:10.1038/nbt1046. PMID 15592455. S2CID 7200157.
• Rual JF, Venkatesan K, Hao T, Hirozane-Kishikawa T, Dricot A, Li N, Berriz GF, Gibbons FD, Dreze M, Ayivi-Guedehoussou N, Klitgord N, Simon C, Boxem M, Milstein S, Rosenberg J, Goldberg DS, Zhang LV, Wong SL, Franklin G, Li S, Albala JS, Lim J, Fraughton C, Llamosas E, Cevik S, Bex C, Lamesch P, Sikorski RS, Vandenhaute J, Zoghbi HY, Smolyar A, Bosak S, Sequerra R, Doucette-Stamm L, Cusick ME, Hill DE, Roth FP, Vidal M (Oct 2005). "Towards a proteome-scale map of the human protein-protein interaction network". Nature. 437 (7062): 1173–8. Bibcode:2005Natur.437.1173R. doi:10.1038/nature04209. PMID 16189514. S2CID 4427026.
• Lim J, Hao T, Shaw C, Patel AJ, Szabó G, Rual JF, Fisk CJ, Li N, Smolyar A, Hill DE, Barabási AL, Vidal M, Zoghbi HY (May 2006). "A protein-protein interaction network for human inherited ataxias and disorders of Purkinje cell degeneration". Cell. 125 (4): 801–14. doi:10.1016/j.cell.2006.03.032. PMID 16713569.
• Olsen JV, Blagoev B, Gnad F, Macek B, Kumar C, Mortensen P, Mann M (Nov 2006). "Global, in vivo, and site-specific phosphorylation dynamics in signaling networks". Cell. 127 (3): 635–48. doi:10.1016/j.cell.2006.09.026. PMID 17081983.
• Ewing RM, Chu P, Elisma F, Li H, Taylor P, Climie S, McBroom-Cerajewski L, Robinson MD, O'Connor L, Li M, Taylor R, Dharsee M, Ho Y, Heilbut A, Moore L, Zhang S, Ornatsky O, Bukhman YV, Ethier M, Sheng Y, Vasilescu J, Abu-Farha M, Lambert JP, Duewel HS, Stewart II, Kuehl B, Hogue K, Colwill K, Gladwish K, Muskat B, Kinach R, Adams SL, Moran MF, Morin GB, Topaloglou T, Figeys D (2007). "Large-scale mapping of human protein-protein interactions by mass spectrometry". Molecular Systems Biology. 3 (1): 89. doi:10.1038/msb4100134. PMC 1847948. PMID 17353931.