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Striatum-enriched phosphatase, a R7 receptor protein tyrosine phosphatase, is a component of the NMDAR complex and has been suggested affect the development and maturation of the striatal neurons. STEP has been shown to regulate the activity of Fyn and may be one mechanism by which Fyn activity is decreased within the postsynaptic densities (PSDs) of striatal neurons. Alternative splicing of STEP produces cytosolic, transmembrane, and truncated isoforms. Three alternatively spliced isoforms have been isolated: Step46 - a cytosolic form, Step61 - a membrane form containing 172 additional amino acids in the N terminus when compared to Step46, and Step20 which lacks the tyrosine phosphatase domain.
Gene Name: | protein tyrosine phosphatase, non-receptor type 5 (striatum-enriched) |
Family/Subfamily: | Protein Phosphatase , R7 receptor |
Synonyms: | PTPN5, Striatal enriched phosphatase, Striatum enriched phosphatase, PTPSTEP, STEP |
Target Sequences: | NM_006906 AAA87555.1 P54829 |
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