SH3RF1 explained
Putative E3 ubiquitin-protein ligase SH3RF1 is an enzyme that in humans is encoded by the SH3RF1 gene.[1] [2]
Function
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]
Interactions
SH3RF1 has been shown to interact with AKT2[3] and MAP3K11.[3]
Further reading
- Lyons TR, Thorburn J, Ryan PW, Thorburn A, Anderson SM, Kassenbrock CK . Regulation of the Pro-apoptotic scaffolding protein POSH by Akt . J. Biol. Chem. . 282 . 30 . 21987–97 . 2007 . 17535800 . 10.1074/jbc.M704321200 . free .
- Kimura K, Wakamatsu A, Suzuki Y, Ota T, Nishikawa T, Yamashita R, Yamamoto J, Sekine M, Tsuritani K, Wakaguri H, Ishii S, Sugiyama T, Saito K, Isono Y, Irie R, Kushida N, Yoneyama T, Otsuka R, Kanda K, Yokoi T, Kondo H, Wagatsuma M, Murakawa K, Ishida S, Ishibashi T, Takahashi-Fujii A, Tanase T, Nagai K, Kikuchi H, Nakai K, Isogai T, Sugano S . Diversification of transcriptional modulation: large-scale identification and characterization of putative alternative promoters of human genes . Genome Res. . 16 . 1 . 55–65 . 2006 . 16344560 . 1356129 . 10.1101/gr.4039406 .
- Alroy I, Tuvia S, Greener T, Gordon D, Barr HM, Taglicht D, Mandil-Levin R, Ben-Avraham D, Konforty D, Nir A, Levius O, Bicoviski V, Dori M, Cohen S, Yaar L, Erez O, Propheta-Meiran O, Koskas M, Caspi-Bachar E, Alchanati I, Sela-Brown A, Moskowitz H, Tessmer U, Schubert U, Reiss Y . The trans-Golgi network-associated human ubiquitin-protein ligase POSH is essential for HIV type 1 production . Proc. Natl. Acad. Sci. U.S.A. . 102 . 5 . 1478–83 . 2005 . 15659549 . 545085 . 10.1073/pnas.0408717102 . 2005PNAS..102.1478A . free .
- Figueroa C, Tarras S, Taylor J, Vojtek AB . Akt2 negatively regulates assembly of the POSH-MLK-JNK signaling complex . J. Biol. Chem. . 278 . 48 . 47922–7 . 2003 . 14504284 . 10.1074/jbc.M307357200 . free .
- Nakayama M, Kikuno R, Ohara O . Protein-protein interactions between large proteins: two-hybrid screening using a functionally classified library composed of long cDNAs . Genome Res. . 12 . 11 . 1773–84 . 2002 . 12421765 . 187542 . 10.1101/gr.406902 .
- Nagase T, Kikuno R, Ishikawa K, Hirosawa M, Ohara O . 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 . 2000 . 10819331 . 10.1093/dnares/7.2.143 . free .
Notes and References
- Tapon N, Nagata K, Lamarche N, Hall A . A new rac target POSH is an SH3-containing scaffold protein involved in the JNK and NF-kappaB signalling pathways . EMBO J. . 17 . 5 . 1395–404 . Apr 1998 . 9482736 . 1170487 . 10.1093/emboj/17.5.1395 .
- Web site: Entrez Gene: SH3RF1 SH3 domain containing ring finger 1.
- Figueroa C, Tarras S, Taylor J, Vojtek AB . Akt2 negatively regulates assembly of the POSH-MLK-JNK signaling complex . J. Biol. Chem. . 278 . 48 . 47922–7 . Nov 2003 . 14504284 . 10.1074/jbc.M307357200 . free .