>TIGR03336 IOR_alpha indolepyruvate ferredoxin oxidoreductase, alpha subunit. Indolepyruvate ferredoxin oxidoreductase (IOR) is an alpha 2/beta 2 tetramer related to ketoacid oxidoreductases for pyruvate (1.2.7.1, POR), 2-ketoglutarate (1.2.7.3, KOR), and 2-oxoisovalerate (1.2.7.7, VOR). These multi-subunit enzymes typically are found in anaerobes and are inactiviated by oxygen. IOR in Pyrococcus acts in fermentation of all three aromatic amino acids, following removal of the amino group by transamination. In Methanococcus maripaludis, by contrast, IOR acts in the opposite direction, in pathways of amino acid biosynthesis from phenylacetate, indoleacetate, and p-hydroxyphenylacetate. In M. maripaludis and many other species, iorA and iorB are found next to an apparent phenylacetate-CoA ligase.

Probab=96.21 E-value=0.09 Score=33.11 Aligned_cols=158 Identities=17% Similarity=0.248 Sum_probs=88.7 Q ss_pred HHHHHHHHHHHHHHCCCCEEEEECCCCCHHHHHHHHHCCCHHHHHHHHCCCCCCCCCCCCCCCCCCCEEEEEEEC-CCEE Q ss_conf 999999999998737910799806765526899988537989999985588743223455510015026889835-9618 Q gi|254781051|r 246 IIPAIEEIIRQGVQQGVDEMILGMAHRGRLNVLSQIMNKLPRSIFYEFKGKGPSEKEYSGDVKYHLGLCCNRQIC-GKDV 324 (957) Q Consensus 246 lIP~L~~ii~~a~~~Gv~eiviGMaHRGRLNVL~Nvl~Kp~~~iF~EF~g~~~~~~~~sGDVKYHLG~s~~~~~~-g~~v 324 (957) T Consensus 4 ll~GneAiarga~eaGv-~~vsgYp------------GsP~~ei~~~l~~~~~~-----------~~i~--~e~~~NEkv 57 (595) T TIGR03336 4 LLLGNEAIARGALEAGV-GVAAAYP------------GTPSSEITDTLAKVAKR-----------AGVY--FEWSVNEKV 57 (595) T ss_pred HHHHHHHHHHHHHHCCC-EEEEECC------------CCCHHHHHHHHHHHHHH-----------CCEE--EEECCCHHH T ss_conf 32258999999998198-4898659------------89878999999962042-----------6669--985578899 Q ss_pred EEEECCCCCCCHHCCHHHHHHHHHHHHHHCCCCCCCCCCCCCCCEEEEEEEECCCCCCCCCHHHHHHHHHCCCCCCCCCE Q ss_conf 99971787731000445532367777641666544555654454047888625753334672588764510677443657 Q gi|254781051|r 325 KLLLQSNPSHLEFVDPVVIGSVRARQDLKAGIVGEKSISLVERSRVLPLIIHGDAAFAGQGIVSETFGLSGLSGYTVAGN 404 (957) Q Consensus 325 ~lsL~~NPSHLEaVnPVv~G~~RAkQd~~~d~~~~~~~~~~~~~~vlpiliHGDAAfaGQGVV~Etl~ls~l~gY~tGGT 404 (957) T Consensus 58 A---------~e~a~gA~~~Gvr~l~----------------~~K~vGlnva~D~l~--------~~~~~G~----~GG~ 100 (595) T TIGR03336 58 A---------VEVAAGAAWSGLRAFC----------------TMKHVGLNVAADPLM--------TLAYTGV----KGGL 100 (595) T ss_pred H---------HHHHHHHHHCCCCEEE----------------ECCCCCCCHHHHHHH--------HHHHHCC----CCEE T ss_conf 9---------9998776442863899----------------856688441277888--------7652077----7559 Q ss_pred EEEEECCCEECC-CCCHHCCCCCCCCHHHHHHCCCEEEECCCCHHHHHHHHHHHHHHHHHHCCCEEEEEEE Q ss_conf 999841602012-4701024677840011220340587426788999999999999999738973998642 Q gi|254781051|r 405 IHLIINNQIGFT-TNPSSARSCTYASDISKSIGIPIFHVNGDDPEAVIRVVRMAVSFRMKFHKSVVIDIVC 474 (957) Q Consensus 405 iHiVvNNQIGFT-T~p~d~RSs~Y~TDiAK~i~aPI~HVN~DdpEav~~~~~lA~~yR~~F~kDVvIDlv~ 474 (957) T Consensus 101 v~v~gDDpg~~SSq~eqdsr--~----~~~~a~iPvl~Ps--~~qE~~d~~~~af~LSr~~g~pV~lr~tt 163 (595) T TIGR03336 101 VVVVADDPSMHSSQNEQDTR--H----YAKFAKIPCLEPS--TPQEAKDMVKYAFELSEKFGLPVILRPTT 163 (595) T ss_pred EEEEECCCCCCCCCCHHHHH--H----HHHHCCCEEECCC--CHHHHHHHHHHHHHHHHHHCCCEEEEEEE T ss_conf 99994699985351677789--9----9998498267789--99999999999999999979987999887

HHsearch alignment for GI: 254781051 and conserved domain: TIGR03336