>TIGR01292 TRX_reduct thioredoxin-disulfide reductase; InterPro: IPR005982 Reactive oxygen species (ROS) are known mediators of intracellular signaling cascades. Excessive production of ROS may, however, lead to oxidative stress, loss of cell function, and ultimately apoptosis or necrosis. A balance between oxidant and antioxidant intracellular systems is hence vital for cell function, regulation, and adaptation to diverse growth conditions. Thioredoxin reductase in conjunction with thioredoxin is a ubiquitous oxidoreductase system with antioxidant and redox regulatory roles. Thioredoxin reductase (1.8.1.9 from EC) reduces oxidised thioredoxin in the presence of NADPH. Reduced thioredoxin serves as an electron donor for thioredoxin peroxidase which consequently reduces H_2O_2 to H_2O. In mammals, extracellular forms of Trx also have cytokine-like effects. Mammalian TrxR has a highly reactive active site selenocysteine residue resulting in a profound reductive capacity, reducing several substrates in addition to Trx .; GO: 0004791 thioredoxin-disulfide reductase activity, 0019430 removal of superoxide radicals, 0005737 cytoplasm.

Probab=95.23 E-value=0.11 Score=31.61 Aligned_cols=88 Identities=15% Similarity=0.378 Sum_probs=64.2 Q ss_pred CEEEECCCHHHHHHHHHHHHCCCCEEEEECCHHHCCCCCCCCCCCCCCHHHHHHHHHHHHHHHHHHHHHHHHHHHHHCCC Q ss_conf 78898894268999999985899899998076260124667002211224899999863039999998863148873078 Q gi|254780808|r 7 DVIVIGGGHAGCEAAAVAAKLGASTALITHKTSTIGSMSCNPAIGGLGKGHLVREIDALDGLMGRVADAAGIQFRVLNVK 86 (626) Q Consensus 7 dViVIGaG~AG~EAA~~~Ar~G~~v~L~~~~~~~~ael~Cnps~gg~akg~L~~Ei~aLgg~m~~~aD~~~i~~r~ln~s 86 (626) T Consensus 153 ~V~VvGGGdsA~eEA~yL~~~a~kV~lvHRR-d~f--------------------------------------------- 186 (321) T TIGR01292 153 EVAVVGGGDSALEEALYLTRIAKKVTLVHRR-DKF--------------------------------------------- 186 (321) T ss_pred EEEEECCCCHHHHHHHHHHHCCCEEEEEECC-CCC--------------------------------------------- T ss_conf 8999879824888889998538767999779-863--------------------------------------------- Q ss_pred CCCCCCCHHHHHHHHHHHHHHHHHHHCCC--CCEEE-HHHHCCCCCCC-CCEEEEEECCCC-----CCCCCCCCCCCC Q ss_conf 78555346787849999999999997089--96898-00101120258-811322203586-----334454333466 Q gi|254780808|r 87 KGPAVRGPRTQADRELYRLAMQREILSQE--NLDVI-QGEVAGFNTEK-NIISSIVMQDNS-----MIRCSTVVLTTG 155 (626) Q Consensus 87 kGpAv~alraqvDR~~fs~~vt~~l~~~p--ni~i~-~~eV~~l~~~~-~~~~~v~~~~g~-----~~~~~~viiatG 155 (626) T Consensus 187 --------RA-------~k~~~~r~~~~~eG~I~~l~n~~v~Ei~G~~~~~V~~v~i~N~~t~e~~~l~vdGvF~aIG 249 (321) T TIGR01292 187 --------RA-------EKILLDRLKKNPEGKIEFLWNSTVEEIVGDNSKKVESVKIKNTVTGEEEELKVDGVFIAIG 249 (321) T ss_pred --------CC-------CHHHHHHHHHCCCCCEEEECCCEEEEEECCCCEEEEEEEEEECCCCEEEEEEECEEEEEEC T ss_conf --------63-------2899989983789878996486899996178315533589962388488998444789841

HHsearch alignment for GI: 254780808 and conserved domain: TIGR01292