Scientific background: |
TXNRD2 (Thioredoxin reductase 2), also known as TRXR2, TR3, SELZ, or TR-BETA, Thioredoxin reductases, are selenocysteine (sec)-containing flavoenzymes that maintain thioredoxins, small proteins that catalyze redox reactions, in the reduced state using the reducing power of NADPH. By STS analysis and genomic sequence analysis, respectively, Miranda-Vizuete et al. (1999) and Sun et al. (1999) mapped the TXNRD2 gene to chromosome 22q11.2. Miranda-Vizuete et al. (1999) mapped the mouse gene to chromosome 16. Gasdaska et al. (1999) showed that TXNRD2 was a thioredoxin reductase that could directly reduce proteins such as insulin. |
References: |
1. Gasdaska, P. Y., Berggren, M. M., Berry, M. J., Powis, G.Cloning, sequencing, and functional expression of a novel human thioredoxin reductase.FEBS Lett. 442: 105-111, 1999.
2. Miranda-Vizuete, A., Damdimopoulos, A. E., Pedrajas, J. R., Gustafsson, J.-A., Spyrou, G.Human mitochondrial thioredoxin reductase: cDNA cloning, expression, and genomic organization.Europ. J. Biochem. 261: 405-412, 1999.
3. Sun, Q.-A., Wu, Y., Zappacosta, F., Jeang, K.-T., Lee, B. J., Hatfield, D. L., Gladyshev, V. N.Redox regulation of cell signaling by selenocysteine in mammalian thioredoxin reductases.J. Biol. Chem. 274: 24522-24530, 1999.
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