E3 ubiquitin-protein ligase RNF34 is an enzyme that in humans is encoded by the RNF34gene.[1][2]
The protein encoded by this gene contains a RINF finger, a motif known to be involved in protein-protein and protein-DNA interactions. This protein interacts with DNAJA3/hTid-1, which is a DnaJ protein reported to function as a modulator of apoptosis. Overexpression of this gene in Hela cells was shown to confer the resistance to TNF-alpha induced apoptosis, suggesting an anti-apoptotic function of this protein. This protein can be cleaved by caspase-3 during the induction of apoptosis. Alternatively spliced transcript variants encoding distinct isoforms have been reported.[2]
References
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Suzuki Y, Yoshitomo-Nakagawa K, Maruyama K, et al. (1997). "Construction and characterization of a full length-enriched and a 5'-end-enriched cDNA library". Gene. 200 (1–2): 149–56. doi:10.1016/S0378-1119(97)00411-3. PMID9373149.
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Sasaki S, Watanabe T, Konishi T, et al. (2005). "Effects of expression of hRFI on adenoma formation and tumor progression in colorectal adenoma-carcinoma sequence". J. Exp. Clin. Cancer Res. 23 (3): 507–12. PMID15595643.
Konishi T, Sasaki S, Watanabe T, et al. (2005). "Overexpression of hRFI (human ring finger homologous to inhibitor of apoptosis protein type) inhibits death receptor-mediated apoptosis in colorectal cancer cells". Mol. Cancer Ther. 4 (5): 743–50. doi:10.1158/1535-7163.MCT-05-0020. PMID15897238.
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