背景资料 |
DNA ligase 3 is an enzyme that, in humans, is encoded by the LIG3 gene. This gene is a member of the DNA ligase family. Each member of this family encodes a protein that catalyzes the joining of DNA ends but they each have a distinct role in DNA metabolism. The protein encoded by this gene is involved in excision repair and is located in both the mitochondria and nucleus, with translation initiation from the upstream start codon allowing for transport to the mitochondria and translation initiation from a downstream start codon allowing for transport to the nucleus. Additionally, alternate transcriptional splice variants, encoding different isoforms, have been characterized. |
研究类别 |
1. Chen, J., Tomkinson, A. E., Ramos, W., Mackey, Z. B., Danehower, S., Walter, C. A., Schultz, R. A., Besterman, J. M., Husain, I. Mammalian DNA ligase III: molecular cloning, chromosomal localization, and expression in spermatocytes undergoing meiotic recombination. Molec. Cell. Biol. 15: 5412-5422, 1995. 2. Gao, Y., Katyal, S., Lee, Y., Zhao, J., Rehg, J. E., Russell, H. R., McKinnon, P. J. DNA ligase III is critical for mtDNA integrity but not Xrcc1-mediated nuclear DNA repair. Nature 471: 240-244, 2011. 3. Moser, J., Kool, H., Giakzidis, I., Caldecott, K., Mullenders, L. H. F., Fousteri, M. I. Sealing of chromosomal DNA nicks during nucleotide excision repair requires XRCC1 and DNA ligase III-alpha in a cell-cycle-specific manner. Molec. Cell 27: 311-323, 2007. |