Protein Tyrosine Phosphatase Receptor Type O
GLEPP1
PTP-U2
PTPU2
PTP-Oc
NPHS6
Osteoclastic Transmembrane Protein-Tyrosine Phosphatase
Receptor-Type Tyrosine-Protein Phosphatase O
Glomerular Epithelial Protein 1
EC 3.1.3.48
PTPase U2
R-PTP-O
Protein Tyrosine Phosphatase PTP-U2
Protein Tyrosine Phosphatase U2
Phosphotyrosine Phosphatase U2
PTP Phi
PTPROT
This gene encodes a member of the R3 subtype family of receptor-type protein tyrosine phosphatases. These proteins are localized to the apical surface of polarized cells and may have tissue-specific functions through activation of Src family kinases. This gene contains two distinct promoters, and alternatively spliced transcript variants encoding multiple isoforms have been observed. The encoded proteins may have multiple isoform-specific and tissue-specific functions, including the regulation of osteoclast production and activity, inhibition of cell proliferation and facilitation of apoptosis. This gene is a candidate tumor suppressor, and decreased expression of this gene has been observed in several types of cancer. [provided by RefSeq, May 2011]
Forensic Context
A study in cynomolgus monkeys demonstrated that chronic methamphetamine exposure downregulated the PTPRO gene in the hippocampus, while chronic cocaine exposure upregulated it compared to controls [Choi et al. DOI:10.30773/pi.2022.0004]. In mice, perinatal lead exposure was associated with differential expression of genes overlapping with human psychiatric disorder-associated genes, including the PTPRO [Bakulski et al. DOI:10.1093/toxsci/kfaa069].