>TIGR01423 trypano_reduc trypanothione-disulfide reductase; InterPro: IPR001864 Trypanothione reductase from Leishmania, and African and South American trypanosomes, has been purified and characterised . The enzymes have similar physical, mechanistic and kinetic properties, and are members of the flavoprotein disulphide oxidoreductase family. Trypanothione is the parasite analogue of glutathione, hence this enzyme is equivalent to glutathione reductase. It catalyses the reaction: NADPH + trypanothione = NADP(+) + reduced trypanothione Trypanothione reductase shows pronounced specificty for its disulphide substrates, trypanothione disulphide or glutathionylspermidine disulphide. The 3D structure of the enzyme has been determined and its mode of substrate binding revealed in detail , offering hope for the design of drugs to combat Chagas disease. The structure belongs to the alpha+beta class, i.e. with mainly anti-parallel beta-sheets separated by alpha and beta regions. It contains an alpha-beta sandwich characteristic of FAD/NAD-linked reductases and a C-terminal dimerisation domain.; GO: 0015036 disulfide oxidoreductase activity, 0006118 electron transport.

Probab=100.00 E-value=0 Score=486.25 Aligned_cols=441 Identities=27% Similarity=0.470 Sum_probs=386.8 Q ss_pred CCEEEECCCHHHHHHHHHHHHCC-CCEEEEECCC--------CCCEEEEEECCCCHHHHHHHHHHHHHHHHHHHHCCEEC Q ss_conf 31999989866899999999879-9399993799--------71502513667370989999999999998667558164 Q gi|254781053|r 3 YDVAVVGGGPAGYACAIKAAQLK-NKVAIIEKEK--------TYGGTCLNIGCIPSKALLHASEMYSHIAKEAGDLGINI 73 (466) Q Consensus 3 YDvvIIG~G~AG~~aA~~~~~~G-~~V~lIE~~~--------~~GGtC~~~GCiPsK~l~~~a~~~~~~~~~~~~~g~~~ 73 (466) T Consensus 4 ~dlv~iGaGsGGleaGWnaa~l~kkrvav~d~q~~hGPP~~aalGGtCvnvGCvPkklmvtGa~ymd~~-resaGfGWe~ 82 (486) T TIGR01423 4 YDLVVIGAGSGGLEAGWNAASLYKKRVAVVDLQKVHGPPFYAALGGTCVNVGCVPKKLMVTGAQYMDTL-RESAGFGWEL 82 (486) T ss_pred EEEEEEECCCCCCCCCHHHHHHHCCEEEEEEEECCCCCCCEECCCCCEEEECCCCCCEEEECHHHHHHH-HHHCCCCEEC T ss_conf 578998247774100101233210316899842247993000108726872343630011005788888-7623764000 Q ss_pred CC--CCCCHHHHHHHHHHHHHHHHHHHHHHHHC-CCEEEEEEEEEECCCCCCCCCCCCC-----CCCCCCEEECCCCCCC Q ss_conf 77--53289999999999999877777876400-4310110011100222102357521-----1232210000467665 Q gi|254781053|r 74 AS--CHLDLKKMMSYKKSIVESNTQGINFLLKK-NKIITYHGSARIVSNNKILVKGSSS-----EETIEAKNIVIATGSE 145 (466) Q Consensus 74 ~~--~~~d~~~~~~~~~~~v~~~~~~~~~~~~~-~~V~~~~g~a~~~~~~~v~V~~~~~-----~~~i~ad~iviATGs~ 145 (466) T Consensus 83 d~~~~~~nWk~liaakn~av~~in~sye~mf~dteGl~f~~G~Gal~~~~~v~vre~adP~s~v~e~l~~e~i~~atGsW 162 (486) T TIGR01423 83 DAESVKANWKALIAAKNKAVLDINDSYEDMFKDTEGLEFFLGFGALEDKNVVLVRESADPKSKVKERLDAEYILLATGSW 162 (486) T ss_pred CHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHCCCCEEEEECCCEECCCCEEEEECCCCCHHHHHHHHCCCEEEEEECCC T ss_conf 32454466789998766777767655777741024402220112001475799962788525786510433599971677 Q ss_pred CCCCCCCCCCCCCEEEEEECCCCCCCCCCCCCCCCCCCCCCCCCCHHHHHC---CCCHHHHHHCCCCCCCCCCCCCCCCC Q ss_conf 244457665321002453057411111133321012344543320132201---22011100001112212222112222 Q gi|254781053|r 146 ASGLPGMSIDFDEQVIVSSTGALSFSSVPKNLLVIGAGVIGLELGSVWTRL---GSCVKIIEHSGTILNGMDKEIAAHCL 222 (466) Q Consensus 146 p~~iP~~~~~~~~~~~~t~~~~~~l~~~P~~ivIIGgG~ig~E~A~~~~~l---G~~Vtli~~~~~ll~~~d~~~~~~~~ 222 (466) T Consensus 163 Pq~l~---i~G-~~~Ci~sneafyl~e~P~r~l~vGGG~is~efaGifnayk~~GG~v~l~yr~~~ilrGfd~~lr~~lt 238 (486) T TIGR01423 163 PQMLK---IEG-IELCISSNEAFYLEEAPKRVLTVGGGYISVEFAGIFNAYKAVGGKVDLAYRNDMILRGFDSELRKELT 238 (486) T ss_pred CCCCC---CCC-CCEEEECCCCEECCCCCCEEEEECCCEEEEEEEEHHHHHCCCCCEEEEEECCCEEEECCCHHHHHHHH T ss_conf 32003---566-42033023201004788548986474799862001232315797589987387033032278999999 Q ss_pred CCCCCCCCCCCCCHHHHHHHCCCCCC-EEEEEEECCCCCCCEEEEEEECCCCEEEECCCCCEEEECCCCCCCCCCCCCCC Q ss_conf 22222222232200234420146872-16999721332110000023204531210367840000126764223337763 Q gi|254781053|r 223 KIMSKQGMNFQLNSKVSSVKKVKGKA-QVVYRSTDDEPINIEADAVLVAAGRRPYTKGLGLEEIGINIDHRGCIEIGGQF 301 (466) Q Consensus 223 ~~l~~~gV~i~~~~~v~~i~~~~~~~-~v~~~~~~g~~~~i~~D~vl~a~G~~Pn~~~l~Le~~gi~~~~~G~I~vd~~~ 301 (466) T Consensus 239 ~ql~anGi~~~t~enP~k~~~n~dG~~hv~fesG----~~~d~dvvm~aiGr~Pr~~~lql~~~Gv~~~~~Gai~vd~~s 314 (486) T TIGR01423 239 KQLVANGIDVRTNENPAKVEKNADGSKHVVFESG----KELDVDVVMLAIGRLPRSQTLQLDKVGVELADKGAIKVDEYS 314 (486) T ss_pred HHHHHCCCEEEECCCCHHEEECCCCCEEEEECCC----CCCCEEEEEEEECCCCCCCEEEEECCCEEEECCCCEEECCHH T ss_conf 8876266136644770011007898446886267----733401788762367764313400003011137644430000 Q ss_pred EEECCCCEEECCCCCCCCCCCEECCCCCCEEECCCCC-CCCCCCCCCCCCEEEHHHHHHHHHCHHHHHHCCCCEEEEEEE Q ss_conf 3302684870243335434430001232012011122-222223333221000144551001478886234665899996 Q gi|254781053|r 302 QTSISTIYAIGDVVRGPMLAHKAEDEGIAVAEIISGQ-KGHVNYGIIPSVVYTHPEVASIGKTEEQLKCEKKSYKVGKFP 380 (466) Q Consensus 302 ~Ts~p~IyA~GDv~g~~~l~~~A~~~g~~aa~~i~~~-~~~~~~~~ip~~vft~peia~vGlte~~a~~~~~~~~v~~~~ 380 (466) T Consensus 315 ~tnv~niyaiGdvt~r~mltPvaineGa~~vdt~f~~kPr~tdht~va~avfsiPP~G~CG~~ee~aak~~~~vavy~s~ 394 (486) T TIGR01423 315 KTNVDNIYAIGDVTDRVMLTPVAINEGAAVVDTVFASKPRKTDHTKVASAVFSIPPIGVCGLVEEEAAKKYEKVAVYLSS 394 (486) T ss_pred CCCCCCEEEECCCCCCEEEEEEEECCCCHHHHHHHCCCCCCCCCCEEEEEEEECCCCCCCCCCCHHHHHHHHHEEEEEHH T ss_conf 04633135520213605762232015640101322378875433122445550587640354201553202002222011 Q ss_pred ECCCCHHHHCCC-CCEEEEEEEECCCCEEEEEEEECCCHHHHHHHHHHHHHCCCCHHHHHCCCCCCCCHHHHH Q ss_conf 044703441889-833899999789986999999829988999999999987898789963784377889999 Q gi|254781053|r 381 FSANGRARSMNS-IDGFVKILANEKSDRVEGVHIIGGSAGEMIHEAAVLMEFGGSSEDLARICHAHPTMSEAV 452 (466) Q Consensus 381 ~~~~~ra~~~~~-~~g~~kli~~~~~~~ilG~~~vg~~a~eli~~~a~ai~~~~t~~~l~~~~~~hPt~~E~l 452 (466) T Consensus 395 ftPlmhnisGs~ykkf~~~i~t~h~dG~v~Gvh~lGdssPeiiq~v~iC~k~~akisdfyntiGvhPtsaeel 467 (486) T TIGR01423 395 FTPLMHNISGSKYKKFVVKIVTDHADGEVLGVHLLGDSSPEIIQAVAICLKLNAKISDFYNTIGVHPTSAEEL 467 (486) T ss_pred CCHHHHHCCCCHHHEEEEEEEEECCCCCEEEEEEECCCCHHHHHHHHHHHHCCCCHHHHHHCCCCCCCCHHHH T ss_conf 0002321242014213233343058860899997448876688764432210450102321035565664554

HHsearch alignment for GI: 254781053 and conserved domain: TIGR01423