Alternative titles; symbols
HGNC Approved Gene Symbol: RBPMS
Cytogenetic location: 8p12 Genomic coordinates (GRCh38): 8:30,384,541-30,572,256 (from NCBI)
Shimamoto et al. (1996) established a 1.3-Mb physical map spanning the Werner syndrome (WRN; 277700) region on chromosome 8p and identified a unique gene that they called RBPMS. The single-copy RBPMS gene is alternatively spliced, resulting in at least 12 transcripts with an average length of 1.5 kb. Nine different types of cDNAs encoding an N-terminal RNA-binding motif homologous to that of the Drosophila 'couch potato' protein and C-terminal helix-rich sequences were identified. Northern blot analysis showed that the RBPMS gene was expressed strongly in heart, prostate, intestine, and ovary, and poorly in skeletal muscle, spleen, thymus, brain, and peripheral leukocytes. Shimamoto et al. (1996) noted evidence that alternative splicing of RBPMS was regulated in a tissue-specific fashion.
Shimamoto et al. (1996) determined that the RBPMS gene contains 16 exons and spans at least 230 kb.
By genomic sequence analysis, Shimamoto et al. (1996) mapped the RBPMS gene to chromosome 8p12-p11. Gross (2020) mapped the RBPMS gene to chromosome 8p12 based on an alignment of the RBPMS sequence (GenBank BC003608) with the genomic sequence (GRCh38).
Using yeast 2-hybrid screens, coaffinity purification analysis of transfected HEK293 cells, and bioinformatic analysis, Lim et al. (2006) developed an interaction network for 54 human proteins involved in 23 inherited ataxias. By database analysis, they expanded the core network to include more distantly related interacting proteins that could function as genetic modifiers. ATXN1 (601556) showed a strong direct interaction with RBPMS, and the N-terminal portion of ATXN1 was required for interaction with RBPMS. RBPMS was a main hub in the network and interacted with many proteins, including 2 cerebellar ataxia-associated proteins, ATN1 (607462) and QK1 (609590).
Gross, M. B. Personal Communication. Baltimore, Md. 9/22/2020.
Lim, J., Hao, T., Shaw, C., Patel, A. J., Szabo, G., Rual, J.-F., Fisk, C. J., Li, N., Smolyar, A., Hill, D. E., Barabasi, A.-L., Vidal, M., Zoghbi, H. Y. A protein-protein interaction network for human inherited ataxias and disorders of Purkinje cell degeneration. Cell 125: 801-814, 2006. [PubMed: 16713569] [Full Text: https://doi.org/10.1016/j.cell.2006.03.032]
Shimamoto, A., Kitao, S., Ichikawa, K., Suzuki, N., Yamabe, Y., Imamura, O., Tokutake, Y., Satoh, M., Matsumoto, T., Kuromitsu, J., Kataoka, H., Sugawara, K., Sugawara, M., Sugimoto, M., Goto, M., Furuichi, Y. A unique human gene that spans over 230 kb in the human chromosome 8p11-12 and codes multiple family proteins sharing RNA-binding motifs. Proc. Nat. Acad. Sci. 93: 10913-10917, 1996. [PubMed: 8855282] [Full Text: https://doi.org/10.1073/pnas.93.20.10913]