PTPRS

PTPRS

PTPRS

Protein-coding gene in the species Homo sapiens


Receptor-type tyrosine-protein phosphatase S, also known as R-PTP-S, R-PTP-sigma, or PTPσ, is an enzyme that in humans is encoded by the PTPRS gene.[5][6][7]

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Function

The protein encoded by this gene is a member of the protein tyrosine phosphatase (PTP) family. PTPs are known to be signaling molecules that regulate a variety of cellular processes including cell growth, differentiation, mitotic cycle, and oncogenic transformation. This PTP contains an extracellular region, a single transmembrane segment and two tandem intracytoplasmic catalytic domains (D1 and D2), and thus represents a receptor-type PTP. D1 is catalytically active, while D2 is catalytically inactive. The extracellular region of this protein is composed of multiple Ig-like and fibronectin type III-like domains. Rem2 signaling affects neuronal structure and function in part by regulation of gene expression. Molecular and Cellular NeuroscienceStudies of the similar gene in mice suggested that this PTP may be involved in cell-cell interaction, primary axonogenesis, and axon guidance during embryogenesis. This PTP has been also implicated in the molecular control of adult nerve repair. Four alternatively spliced transcript variants, which encode distinct proteins, have been reported.[7]

Clinical significance

A PTPRS protein mimetic may improve muscular and bladder control in rats with spinal cord injuries.[8][9]

Interactions

PTPRS has been shown to interact with:


References

  1. "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  2. "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  3. Wagner J, Gordon LA, Heng HH, Tremblay ML, Olsen AS (Mar 1997). "Physical mapping of receptor type protein tyrosine phosphatase sigma (PTPRS) to human chromosome 19p13.3". Genomics. 38 (1): 76–8. doi:10.1006/geno.1996.0594. PMID 8954782.
  4. Lang BT, Cregg JM, DePaul MA, Tran AP, Xu K, Dyck SM, Madalena KM, Brown BP, Weng Y, Li S, Karimi-Abdolrezaee S, Busch SA, Shen Y, Silver J (2014). "Modulation of the proteoglycan receptor PTPσ promotes recovery after spinal cord injury". Nature. 518 (7539): 404–8. doi:10.1038/nature13974. PMC 4336236. PMID 25470046.
  5. Maggie Fox (3 December 2014). "'Unprecedented': Drug May Help Heal Damaged Spine". NBC. Retrieved December 8, 2014.
  6. Serra-Pagès C, Medley QG, Tang M, Hart A, Streuli M (Jun 1998). "Liprins, a family of LAR transmembrane protein-tyrosine phosphatase-interacting proteins". J. Biol. Chem. 273 (25): 15611–20. doi:10.1074/jbc.273.25.15611. PMID 9624153.
  7. Hamasaki H, Fujitani M, Yamashita T (March 2016). "NME2 associates with PTPσ to transduce signals from chondroitin sulfate proteoglycans". Biochemical and Biophysical Research Communications. 471 (4): 522–7. doi:10.1016/j.bbrc.2016.02.042. PMID 26896769.

Further reading



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