>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=100.00 E-value=4.9e-44 Score=338.68 Aligned_cols=290 Identities=27% Similarity=0.437 Sum_probs=218.3 Q ss_pred CCEEEECCCHHHHHHHHHHHHCCCCEEEEECCCCC---EEEEEECCCCCHHHHHHHHHHHHHHHHHCCCCCCCCCCC-CC Q ss_conf 34899989857999999999879939999788886---246325673708899999999999842117821348754-49 Q gi|254780675|r 5 YDIILIGSGPAGYVAAIRAAQLGFKVAIVEYAGLG---GICLNWGCIPTKSLLRSAEILDHIQNAQHYGLNVAGKVE-FN 80 (481) Q Consensus 5 yDvvIIG~GpAG~~aA~~~a~~G~~V~liEk~~~G---GtC~~~GCiPsK~l~~~a~~~~~~~~~~~~g~~~~~~~~-~~ 80 (481) T Consensus 1 ~DviIIGaGPAGlTAAIYa~Ra~l~~l~~eg~~~G~aGGq-----------l~----~T~~vENYPGf-------~e~i~ 58 (321) T TIGR01292 1 YDVIIIGAGPAGLTAAIYAARANLKTLLIEGMEPGIAGGQ-----------LT----TTTEVENYPGF-------PEGIS 58 (321) T ss_pred CCEEEECCCHHHHHHHHHHHHHCCEEEEEECCCCCCCCCC-----------CC----CCCEEECCCCC-------CCCCC T ss_conf 9289984786788899998874672789835777745553-----------33----22065136868-------88766 Q ss_pred HHHHHHHHHHHHHHHHHHHHHHHHCCCEEEECCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCEEEEEEEEEECCCC Q ss_conf 99999999999998534468763014142100000112222100236875200135555432258638997245525754 Q gi|254780675|r 81 IEDIVKRSRDISHRLNRGVEFLMHKNKVDIIWGKATLKNPSEITVSKPSQPAVQPQHPIPKKVLGEGTYKAKHIIIATGA 160 (481) Q Consensus 81 ~~~~~~~~~~~~~~~~~~~~~~~~~~~v~~~~G~a~f~~~~~v~v~~~~~~~~~~~~~~~~~~~~~~~~~a~~ivIATGs 160 (481) T Consensus 59 G~~L~~~M~~Qa~~f-----------G~~~~~G~~------v~~v~~~~~~-yE-~~-~F~~~~~-~~y~a~avIiAtGa 117 (321) T TIGR01292 59 GPELMEKMKEQAKKF-----------GAEIIYGEE------VIRVDKSDRA-YE-SD-PFKVKTG-KEYTAKAVIIATGA 117 (321) T ss_pred HHHHHHHHHHHHHHC-----------CCCEEECCE------EEEEECCCCC-CC-CC-EEEEEEC-CEEEEEEEEEECCC T ss_conf 288999999999870-----------673662670------5686337884-36-61-0389717-56886589991387 Q ss_pred CCCCCCCCC-CC----CCCC---CCCCC--CEECCCCCCCCCCCCCCCCCCCCHHHHHCCCCCCCCEECCCCCCCCCCCC Q ss_conf 311101113-45----5542---21245--21113334443215654332100023210133310000000012222222 Q gi|254780675|r 161 RPRHIEGIE-PD----SHLI---WTYFD--ALKPSKTPKSLIVMGSGAIGVEFSSFYKSLDVDVSLIEVKDRILPVEDSE 230 (481) Q Consensus 161 ~p~~~~g~~-~~----~~~~---~t~~~--~l~l~~~p~~ivIiGgG~ig~E~A~~l~~lG~~Vtli~~~~~ll~~~d~~ 230 (481) T Consensus 118 ~~r~lg-~~kGE~ef~GrGVSyCA~CDGA~~ffk~---K~V~VvGGGdsA~eEA~yL~~~a~kV~lvHRRd~fR------ 187 (321) T TIGR01292 118 EARKLG-IPKGEDEFLGRGVSYCATCDGASPFFKN---KEVAVVGGGDSALEEALYLTRIAKKVTLVHRRDKFR------ 187 (321) T ss_pred HHHHCC-CCCCHHHHCCCCEEEEEHHCCCCHHHCC---CEEEEECCCCHHHHHHHHHHHCCCEEEEEECCCCCC------ T ss_conf 154237-8866455326866672231054012059---889998798248888899985387679997798636------ Q ss_pred CCCCCCHHHHHC---CCCCCCCHHHHHHCCCC--CCCCEEEEE-CCCCEEEEECCCEEECCCCEEEEECCCCCCCC-CCC Q ss_conf 122210012201---23322100134420223--431012440-36740211023224305742200002322211-235 Q gi|254780675|r 231 ISQFVQRSLQKR---GIKILTESKISSVKQKG--DMVSVQVER-KDGSVSSMQAEKLLLSAGVQGNIENIGLEKIG-VKT 303 (481) Q Consensus 231 ~~~~~~~~l~~~---Gv~i~~~~~v~~v~~~~--~~~~v~~~~-~dG~~~~i~~D~vl~a~Gr~Pn~~~L~Le~~g-i~~ 303 (481) T Consensus 188 A~k~~~~r~~~~~eG~I~~l~n~~v~Ei~G~~~~~V~~v~i~N~~t~e~~~l~vdGvF~aIG~~P~t~~--~~~~G~~~~ 265 (321) T TIGR01292 188 AEKILLDRLKKNPEGKIEFLWNSTVEEIVGDNSKKVESVKIKNTVTGEEEELKVDGVFIAIGHEPNTEL--LKGLGLLEL 265 (321) T ss_pred CCHHHHHHHHHCCCCCEEEECCCEEEEEECCCCEEEEEEEEEECCCCEEEEEEECEEEEEECCCCCHHH--HHCCCCEEE T ss_conf 328999899837898789964868999961783155335899623884889984447898412032057--650783467 Q ss_pred CC-EEEEECCC----CEEECCCCEEECCCCC--CCCCCCCCCCCHHHHHHHHC Q ss_conf 73-26642487----4230258588304445--53244412320255554302 Q gi|254780675|r 304 SN-GCIIVDGY----GRTNVPGIYAIGDVAG--APMLAHKAEHEGIICIEKIA 349 (481) Q Consensus 304 ~~-g~i~vd~~----~qTs~p~IyA~GDv~g--~~~l~~~A~~qg~~aa~~i~ 349 (481) T Consensus 266 D~~GyI~t~~~~Gn~~~Tsv~GvFAAGDv~~kW~~rQ~vTAag~G~~AA~~a~ 318 (321) T TIGR01292 266 DEGGYIVTDEGLGNTMRTSVPGVFAAGDVRDKWGFRQAVTAAGDGCIAALSAE 318 (321) T ss_pred CCCCCEEECCCCCCEEECCCCCEEEEEEEECCCCCEEEEEEECHHHHHHHHHH T ss_conf 69986886175486123066868973044068861376787000689999998

HHsearch alignment for GI: 254780675 and conserved domain: TIGR01292