>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=3.5e-42 Score=328.58 Aligned_cols=279 Identities=26% Similarity=0.414 Sum_probs=216.2 Q ss_pred CCEEEECCCHHHHHHHHHHHHCCCCEEEEECCCCC---EEEEEECCCCHHHHHHHHHHHHHHHHHHCCCEECCCCCCCHH Q ss_conf 46899889867999999999889929999778786---146435682708899999999999841017736377544999 Q gi|254781055|r 5 YDLVVIGAGSSGVRSARLAAQLGKKVAICEEYRVG---GTCVIRGCIPKKLMFYASQYSEYFEDSQGFGWSVDHKSFDWQ 81 (461) Q Consensus 5 yDvvIIG~GpaG~~aA~~la~~g~kV~liE~~~~G---GtC~~~GCiPsK~l~~~a~~~~~~~~~~~~g~~~~~~~~d~~ 81 (461) T Consensus 1 ~DviIIGaGPAGlTAAIYa~Ra~l~~l~~eg~~~G~aGGql~---------------~T~~vENYPGf~e~-----i~G~ 60 (321) T TIGR01292 1 YDVIIIGAGPAGLTAAIYAARANLKTLLIEGMEPGIAGGQLT---------------TTTEVENYPGFPEG-----ISGP 60 (321) T ss_pred CCEEEECCCHHHHHHHHHHHHHCCEEEEEECCCCCCCCCCCC---------------CCCEEECCCCCCCC-----CCHH T ss_conf 928998478678889999887467278983577774555333---------------22065136868887-----6628 Q ss_pred HHHHHHHHHHHHHHHHHHHHHCCCCEEECC-CCC-CCC-CCC-----CCCCCCCCCCEEEEEEEECCCCCEEEEEEC-CC Q ss_conf 999999999985546688643003320012-233-222-222-----222223221100111232277640233203-76 Q gi|254781055|r 82 SLITAQNKELSRLESFYHNRLESAGVEIFA-SKG-ILS-SPH-----SVYIANLNRTITSRYIVVSTGGSPNRMDFK-GS 152 (461) Q Consensus 82 ~~~~~~~~~~~~l~~~~~~~l~~~gv~vi~-g~a-~~~-~~~-----~v~V~~~~~~i~a~~iiIATGs~p~~p~i~-g~ 152 (461) T Consensus 61 ~L~~~M~~Qa~~-----------fG~~~~~G~~v~~v~~~~~~yE~~~F~~~~~-~~y~a~avIiAtGa~~r~lg~~kGE 128 (321) T TIGR01292 61 ELMEKMKEQAKK-----------FGAEIIYGEEVIRVDKSDRAYESDPFKVKTG-KEYTAKAVIIATGAEARKLGIPKGE 128 (321) T ss_pred HHHHHHHHHHHH-----------CCCCEEECCEEEEEECCCCCCCCCEEEEEEC-CEEEEEEEEEECCCHHHHCCCCCCH T ss_conf 899999999987-----------0673662670568633788436610389717-5688658999138715423788664 Q ss_pred CCC--------CCCCC--CCCCCCCCCCCCCCCCCCCCCHHHHHHHCCCCCCCEECCCCCCCCCCCCCCCCCCCCCCCCC Q ss_conf 221--------12378--51123333443212345453011244210122100000111122222232122222222222 Q gi|254781055|r 153 DLC--------ITSDE--IFSLKSLPQSTLIIGGGYIAVEFAGILNSLGSKTTLVTRGNSILSKFDSDIRQGLTDVMISR 222 (461) Q Consensus 153 ~~~--------~ts~~--~~~l~~~P~~i~IiGgG~ig~E~A~~~~~lG~~Vtli~~~~~~l~~~d~~~~~~~~~~l~~~ 222 (461) T Consensus 129 ~ef~GrGVSyCA~CDGA~~ffk~---K~V~VvGGGdsA~eEA~yL~~~a~kV~lvHRRd~f--RA----~k~~~~r~~~~ 199 (321) T TIGR01292 129 DEFLGRGVSYCATCDGASPFFKN---KEVAVVGGGDSALEEALYLTRIAKKVTLVHRRDKF--RA----EKILLDRLKKN 199 (321) T ss_pred HHHCCCCEEEEEHHCCCCHHHCC---CEEEEECCCCHHHHHHHHHHHCCCEEEEEECCCCC--CC----CHHHHHHHHHC T ss_conf 55326866672231054012059---88999879824888889998538767999779863--63----28999899837 Q ss_pred ---CCCCCCCCEEEECCCCCC-CCE-EEEEC---C--CCCCCCCCEECCCCEEEECCCCCCCCC-CCCCCCCCCCCCCC- Q ss_conf ---332332200011024457-610-24312---7--532222100001522200126841123-21123543344574- Q gi|254781055|r 223 ---GMQVFHNDTIESVVSESG-QLK-SILKS---G--KIVKTDQVILAVGRTPRTTGIGLEKVG-VKMDENGFIITDCY- 290 (461) Q Consensus 223 ---Gv~i~~~~~v~~i~~~~~-~~~-~~~~~---g--~~~~~D~vl~a~Gr~Pn~~~l~L~~~g-i~~~~~G~i~vd~~- 290 (461) T Consensus 200 ~eG~I~~l~n~~v~Ei~G~~~~~V~~v~i~N~~t~e~~~l~vdGvF~aIG~~P~t~~--~~~~G~~~~D~~GyI~t~~~~ 277 (321) T TIGR01292 200 PEGKIEFLWNSTVEEIVGDNSKKVESVKIKNTVTGEEEELKVDGVFIAIGHEPNTEL--LKGLGLLELDEGGYIVTDEGL 277 (321) T ss_pred CCCCEEEECCCEEEEEECCCCEEEEEEEEEECCCCEEEEEEECEEEEEECCCCCHHH--HHCCCCEEECCCCCEEECCCC T ss_conf 898789964868999961783155335899623884889984447898412032057--650783467699868861754 Q ss_pred ---CCCCEEEEEEECCCCC--CCCCCCHHHCCCCCCHHHHC Q ss_conf ---3000035587125432--64310000001111012205 Q gi|254781055|r 291 ---SRTNVQSIFSLGDISG--HIQLTPVAIHAAACFVETVF 326 (461) Q Consensus 291 ---~~Ts~~~IyA~GDv~g--~~~l~~~A~~~g~~aa~~i~ 326 (461) T Consensus 278 Gn~~~Tsv~GvFAAGDv~~kW~~rQ~vTAag~G~~AA~~a~ 318 (321) T TIGR01292 278 GNTMRTSVPGVFAAGDVRDKWGFRQAVTAAGDGCIAALSAE 318 (321) T ss_pred CCEEECCCCCEEEEEEEECCCCCEEEEEEECHHHHHHHHHH T ss_conf 86123066868973044068861376787000689999998

HHsearch alignment for GI: 254781055 and conserved domain: TIGR01292