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PTPRM / PTP Mu 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 possesses an extracellular region, a single transmembrane region, and two tandem catalytic domains, and thus represents a receptor-type PTP. The extracellular region contains a meprin-A5 antigen-PTP mu (MAM) domain, an Ig-like domain and four fibronectin type III-like repeats. This PTP has been shown to mediate cell-cell aggregation through the interaction with another molecule of this PTP on an adjacent cell. This PTP can interact with scaffolding protein RACK1/GNB2L1, which may be necessary for the downstream signaling in response to cell-cell adhesion. Alternative splicing results in multiple transcripts encoding distinct isoforms.
Gene Name: | protein tyrosine phosphatase, receptor type, M |
Family/Subfamily: | Protein Phosphatase , R2A |
Synonyms: | PTPRM, HR-PTPu, PTP mu, PTPRL1, RPTPM, Ptpmu, R-PTP-MU, RPTPU |
Target Sequences: | NM_002845 NP_002836.3 P28827 |
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