This gene encodes a protein containing an N-terminus RING-finger, four SH3 domains, and a region implicated in binding of the Rho GTPase Rac. Via the RING-finger, the encoded protein has been shown to function as a ubiquitin-protein ligase involved in protein sorting at the trans-Golgi network. The encoded protein may also act as a scaffold for the c-Jun N-terminal kinase signaling pathway, facilitating the formation of a functional signaling module.[2]
↑ 3.03.1Figueroa C, Tarras S, Taylor J, Vojtek AB (Nov 2003). "Akt2 negatively regulates assembly of the POSH-MLK-JNK signaling complex". J. Biol. Chem. 278 (48): 47922–7. doi:10.1074/jbc.M307357200. PMID14504284.
Further reading
Lyons TR, Thorburn J, Ryan PW, Thorburn A, Anderson SM, Kassenbrock CK (2007). "Regulation of the Pro-apoptotic scaffolding protein POSH by Akt". J. Biol. Chem. 282 (30): 21987–97. doi:10.1074/jbc.M704321200. PMID17535800.
Nagase T, Kikuno R, Ishikawa K, Hirosawa M, Ohara O (2000). "Prediction of the coding sequences of unidentified human genes. XVII. The complete sequences of 100 new cDNA clones from brain which code for large proteins in vitro". DNA Res. 7 (2): 143–50. doi:10.1093/dnares/7.2.143. PMID10819331.