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Protein tyrosine phosphatase, receptor type, f polypeptide
The protein encoded by this gene is a member of the LAR protein-tyrosine phosphatase-interacting protein (liprin) family. Liprins interact with members of LAR family of transmembrane protein tyrosine phosphatases, which are known to be important for axon guidance and mammary gland development. It has been proposed that liprins are multivalent proteins that form complex structures and act as scaffolds for the recruitment and anchoring of LAR family of tyrosine phosphatases. This protein is most closely related to PPFIA1, a liprin family member known to interact with the protein phosphatase LAR. The expression of this gene is found to be downregulated by androgens in a prostate cancer cell line. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, May 2011] (from
Young et al., Durham, United States. In Invest Ophthalmol Vis Sci, Mar 2013
Quantitative testing determined statistically significant SNPs rs4764971, also found by qualitative testing (P = 3.1 × 10(-6)); rs7134216, in the 3' untranslated region (UTR) of DEPDC4 (P = 5.4 × 10(-7)); and rs17306116, an intronic SNP within PPFIA2 (P < 9 × 10(-4)).
Kubota et al., Yokohama, Japan. In Int J Mol Med, 2002
Liprin-alpha2 expression is downregulated by androgens in prostate cancer cells. It might play a role in androgen-responsive human prostate cancer & the loss of this gene expression might be associated with the androgen-independence.