HHsearch alignment for GI: 254780432 and conserved domain: TIGR02080
>TIGR02080 O_succ_thio_ly O-succinylhomoserine (thiol)-lyase; InterPro: IPR011821 Proteins in this entry are important in the interconversion of the sulphur-containing amino acids L-cysteine and L-methionine in bacteria. In bacteria, inorganic sulphur is reduced to sulphide, which is then used to displace the acetyl group of O-acetyl-L-serine to form the essential amino acid L-cysteine. Biosynthesis of L-methionine then occurs via the transsulphuration pathway which involves the sequential action of two pyridoxal 5'-phosphate (PLP) enzymes, cystathionine gamma-synthase (CGS) and cystathionine beta-lyase (CBL). Firstly CGS catalyses the formation of the intermediate cystathione from a homoserine ester and L-cysteine. This intermediate is then converted by CBL to L-homoserine, which is subsequently methylated by methionine synthase to form L-methionine. For more information see . The CGS enzyme (P00935 from SWISSPROT) from Escherichia coli is, like other CGS enzymes, a homotetramer composed of two catalytically active dimers . The active site of each dimer is found at the interface between the monomers and involves residues from each monomer. Catalysis occurs by alpha,gamma-elimination/replacement reactions..
Probab=97.86 E-value=0.0003 Score=48.18 Aligned_cols=289 Identities=18% Similarity=0.208 Sum_probs=168.4
Q ss_pred CCCCCHHHHHHHHHHHHHCCCCCCCCCCHHHHHHHHHHHHHCCCCCCCCCCCCCCCHHHHHHHHHHHHHCCCCCCCCCCC
Q ss_conf 78789999999999997314506875781899999865201013331235655540356777665432001347860023
Q gi|254780432|r 46 LGHSHPELVAILKSQSEKLWHVSNLYQSTQQEIFANHLIHSTFADRVFFTNSGAESVECAIKTARRYHYMAGKTNKFRIV 125 (392)
Q Consensus 46 lGh~~p~i~~a~~~q~~~~~~~~~~~~~~~~~~la~~L~~~~~~~~v~f~~SGseA~e~Aiklar~~~~~~g~t~r~~ii 125 (392)
T Consensus 35 ~gF~~PR~y----------DYs--RsGNPTRd~l~~aLA~LE~G~~AVvT~~GMsAI~L~~-~~lL-------~pdDLlv 94 (383)
T TIGR02080 35 AGFNEPRAY----------DYS--RSGNPTRDILQQALAELEGGAGAVVTNSGMSAIDLVT-TALL-------GPDDLLV 94 (383)
T ss_pred CCCCCCCCC----------CCC--CCCCCCHHHHHHHHHHHHCCCCCEECCCHHHHHHHHH-HHEE-------CCCCEEE
T ss_conf 567779876----------668--8989756589999999848998256685689887664-3120-------7897688
Q ss_pred CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCHHHHHHHHHCCCC-CCCCCCCCCCCCCCCCCCCHHHHHHHHC
Q ss_conf 435465654321234553211347999864333222100268875410123-3222233322221124621012322110
Q gi|254780432|r 126 TFEGAFHGRTLATISAGGKLQYLEGFGPKIEGFDQAKFCDLQSLKNQISND-TAAILIEPIQGEGGVRKVPEEFLQQLRK 204 (392)
Q Consensus 126 ~~~~~yHG~t~~a~s~s~~~~~~~~~~p~~~~~~~~~~~d~~~l~~~~~~~-iAavi~Epv~g~~G~~~~~~~~l~~l~~ 204 (392)
T Consensus 95 APHDCYGGtYRLl~~lA----~kG~~-----~v~fVDQ~D~~al~~ALa~kdPKLVlIEt-PSNPLlRVVD---I~~lc~ 161 (383)
T TIGR02080 95 APHDCYGGTYRLLNALA----KKGQF-----KVQFVDQSDEQALEAALAQKDPKLVLIET-PSNPLLRVVD---IAKLCK 161 (383)
T ss_pred ECCCCCCCHHHHHHHHH----HCCCE-----EEEEEECCHHHHHHHHHHHCCCCEEEEEC-CCCCCCHHHH---HHHHHH
T ss_conf 04326770488886452----07833-----89986076289999999746984799867-9988521888---999998
Q ss_pred CCCCCCCEEEECCCCCCCCCCCCCCCCCC-CCCCCCEE--ECCCCCCCCC-CC-CCCCCCCC-CCCCC--CCCCCCCCCC
Q ss_conf 22345721310110034444555310111-24545302--1034444443-44-32100011-12222--2332234532
Q gi|254780432|r 205 ICDDIDALLIFDEVQTGYGRTGKLFAYEW-ANVKPDIM--TIAKGMGGGF-PI-GACLATNE-VAACM--NQGSHGSTYG 276 (392)
Q Consensus 205 lc~~~g~llI~DEV~tG~GRtG~~f~~e~-~gi~PDi~--~~gK~l~gG~-P~-sav~~~~~-i~~~~--~~~~~~~T~~ 276 (392)
T Consensus 162 La~~~G~~vvVDNTFL------sP-~lQ~PL~LGAD~V~HS~TKYlNGHSDVi~GaVIaKd~q~~e~L~WW~N~lG~t-- 232 (383)
T TIGR02080 162 LAKAVGAVVVVDNTFL------SP-ILQQPLSLGADLVIHSTTKYLNGHSDVIAGAVIAKDPQLAEELAWWANALGVT-- 232 (383)
T ss_pred HHHHCCEEEEEECCCC------CH-HHCCCCCHHCCEEHHHHHCCCCCCHHHHHHHHHCCCHHHHHHHHHHHHCCCCC--
T ss_conf 8761883899855216------77-67275301111301111100034034312124014712234433343002554--
Q ss_pred CCCCCHHHHHHHHHHHH-C-CCCCCHHHHHCCHHHHHHHHHHHHCCCEEEEE------------------CCCEEEEEEE
Q ss_conf 11110012334554320-1-22210112100002688999988679707550------------------4640099987
Q gi|254780432|r 277 GNVLAMVLGEKVLNIIQ-S-DGFLENVINIAKILFEGLTAIKNRFPNMFLEV------------------RGQGLLIGLK 336 (392)
Q Consensus 277 gnpl~~aaa~a~L~~l~-~-~~l~~~~~~~g~~l~~~L~~l~~~~~~~v~~v------------------RG~Gl~~~ie 336 (392)
T Consensus 233 G~aFDSY~tLRGlRTL~~Rm~~~qrnA~~Iv~yL~~--------~P-~V~k~YyPgLpdH~GH~IA~~QQ~GFGAmlSFE 303 (383)
T TIGR02080 233 GGAFDSYLTLRGLRTLAARMRSQQRNAQTIVEYLQT--------QP-LVKKVYYPGLPDHPGHEIAARQQKGFGAMLSFE 303 (383)
T ss_pred CCHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHC--------CC-CEEEEECCCCCCCCCHHHHHHHCCCCCCEEEEE
T ss_conf 443468899867888888888887889999999844--------89-402633587888667699986256543302333
Q ss_pred ECCCHHHHHHHHHHCCEEE------------------------------EECCCCEEEECCCCCCCHHHHHHHHHHHHHH
Q ss_conf 2499899999999689899------------------------------6268988995589868899999999999999
Q gi|254780432|r 337 TVFSPALLAAKFRDECLLT------------------------------APSSDNVVRILPPLTITAEEIHEGLERIERT 386 (392)
Q Consensus 337 ~~~~~~~~~~~l~~~Gll~------------------------------~~~~~~~irl~Ppl~it~~eid~~i~~l~~a 386 (392)
T Consensus 304 L~G~~~~v~~FL~~L~LFtLAESLGGVESLiaHPATMTH~aM~~eAR~~AGI~~~LLRlSv----GlED~~DLiaDL~~g 379 (383)
T TIGR02080 304 LKGGEEAVRRFLGKLSLFTLAESLGGVESLIAHPATMTHAAMGPEARAEAGISDTLLRLSV----GLEDADDLIADLDQG 379 (383)
T ss_pred ECCCHHHHHHHHHHCCCHHHHHHHCCHHHHHCHHHCCCCHHHHHHHHHHCCCCCCCCEEEE----EECCHHHHHHHHHHH
T ss_conf 2188689999984314012123315512333301012602101898974584114200021----003468899999999
Q ss_pred HHH
Q ss_conf 998
Q gi|254780432|r 387 AIK 389 (392)
Q Consensus 387 l~~ 389 (392)
T Consensus 380 l~a 382 (383)
T TIGR02080 380 LQA 382 (383)
T ss_pred HHC
T ss_conf 741