>cd01999 Argininosuccinate_Synthase Argininosuccinate synthase. The Argininosuccinate synthase is a urea cycle enzyme that catalyzes the penultimate step in arginine biosynthesis: the ATP-dependent ligation of citrulline to aspartate to form argininosuccinate, AMP and pyrophosphate . In humans, a defect in the AS gene causes citrullinemia, a genetic disease characterized by severe vomiting spells and mental retardation. AS is a homotetrameric enzyme of chains of about 400 amino-acid residues. An arginine seems to be important for the enzyme's catalytic mechanism. The sequences of AS from various prokaryotes, archaebacteria and eukaryotes show significant similarity

Probab=100.00 E-value=0 Score=1167.59 Aligned_cols=384 Identities=58% Similarity=0.994 Sum_probs=378.0 Q ss_pred EEEEECCCHHHHHHHHHHHHHCCCEEEEEEEECCCCCH-HHHHHHHHHHCCCEEEEEECHHHHHHHHHHHHHHHCCCCCC Q ss_conf 99991477259999999987189869999945787110-68999999973980799820089999987999973686547 Q gi|254780234|r 8 VVLAYSGGLDTSIILKWLQVEKGLEVIVFIADLGQGEE-LKIASDKARLLGAKEVYVKDLRREFVRDFVFPMFRANALYE 86 (404) Q Consensus 8 VvlaySGGLDTSv~i~~L~~e~g~eVi~~~~d~Gq~~d-~~~~~~~A~~~Ga~~~~v~D~r~ef~~~~i~~~I~ana~Ye 86 (404) T Consensus 1 VvLAySGGLDTSv~l~wL~e~~~~eVia~~~d~Gq~~e~~~~i~~kA~~~GA~~~~v~D~r~ef~~~~i~pai~ana~Ye 80 (385) T cd01999 1 VVLAYSGGLDTSVILKWLKEKGGYEVIAVTADVGQPEEEIEAIEEKALKLGAKKHVVVDLREEFVEDYIFPAIQANALYE 80 (385) T ss_pred CEEEECCCCHHHHHHHHHHHHCCCEEEEEEEECCCCHHHHHHHHHHHHHHCCCEEEEECHHHHHHHHHHHHHHHHCCCCC T ss_conf 97997788179999999997459849999998999667778999999981997899961299999999999996086433 Q ss_pred CCCCCCCCHHHHHHHHHHHHHHHHCCCCEEECHHHCCCCHHHHHHHHHHHHCCCCEEEEEECCCCCCCHHHHHHHHHHHC Q ss_conf 87420130124335999999988568928750011168215679999998587970774410068763799999999708 Q gi|254780234|r 87 GYYLLGTAIARPLIAKYLVDIANETGADAIAHGSTGKGNDQVRFELSAYSLNSDIEIIAPWRHWSFKGRQDLIDFAEKHA 166 (404) Q Consensus 87 g~Ypl~tslaRplia~~lv~~a~~~ga~~iaHG~TgkGNDQvRFe~~~~~l~P~l~viaP~Rd~~~~sRe~~i~ya~~~g 166 (404) T Consensus 81 g~Y~L~tslaRplIak~~ve~A~~~ga~aiaHG~TGkGNDQvRFe~~~~aL~P~l~iiAP~Rd~~~~sR~~~i~ya~~~g 160 (385) T cd01999 81 GTYPLGTALARPLIAKALVEVAKEEGADAVAHGCTGKGNDQVRFELAFYALNPDLKIIAPWRDWEFLSREEEIEYAEEHG 160 (385) T ss_pred CCEECCCCHHHHHHHHHHHHHHHHHCCEEEEECCCCCCCCHHHHHHHHHHHCCCCEEEEEEECCCCCCHHHHHHHHHHCC T ss_conf 75321350157899999999999809849974566688840689999998599975851473144488899999999859 Q ss_pred CCCCCCCCCCCCCCCCHHHHCCCCCCCCCCCCCCCCCHHHCCCCCCHHHCCCCCEEEEEEEECCEEEEECCEECCHHHHH Q ss_conf 96756656788641572431154576324584576820100146581227999638999995024787516231899999 Q gi|254780234|r 167 IPIDKNKRGEAPFSIDTNLLHSSSEGRVLEDPSQPAPEYVYKMIVSPEEAPDTPTTIRIDFQRGDPIAINGQVMSPEVLL 246 (404) Q Consensus 167 Ipv~~~~~~~~~yS~D~Nlwg~S~Egg~Ledp~~~~pe~~~~~t~~p~~ap~~pe~v~I~Fe~G~PVainG~~~~~~~li 246 (404) T Consensus 161 i~v~~~~~--~pyS~D~NLwg~S~Egg~Ledp~~~~p~~~~~~t~~p~~aP~~pe~v~I~Fe~G~PvainG~~~~~~~li 238 (385) T cd01999 161 IPVPVTKK--KPYSIDENLWGRSIEGGILEDPDNEPPEDAYEWTVSPEDAPDEPEYVEIEFEKGVPVALNGEKLDPVELI 238 (385) T ss_pred CCCCCCCC--CCCCCCCCEEEEECCCCCCCCCCCCCCHHHHHCCCCHHHCCCCCEEEEEEEECCEEEEECCCCCCHHHHH T ss_conf 99886678--8851463600110046552584546986774257997788999869999986445789658406899999 Q ss_pred HHHHHHHHHCCCCCEECCCCCCCCCCCCCCCCCHHHHHHHHHHHHHHHHHCCHHHHHHHHHHHHHHHHHHHCCCCCCHHH Q ss_conf 99988864216374100077320210001113737899999999998650899999999999999999875351469899 Q gi|254780234|r 247 EQLNQYGRCNGIGRIDIVENRFVGIKSRGVYETPGGTILLHAHRAIESISLDSGSAHLKDDLMSRYASIVYQGFWFSPER 326 (404) Q Consensus 247 ~~LN~igg~~GvGr~d~vEnr~vG~KsR~vYEaPga~iL~~Ahr~LE~~~l~~~~~~~K~~~~~~~a~lvy~G~wf~p~~ 326 (404) T Consensus 239 ~~LN~igg~~GIGr~d~vEnr~vG~KsRgvYEaPg~tiL~~AHr~LE~~~Ldr~~~~~K~~l~~~~a~lvY~G~wfsPlr 318 (385) T cd01999 239 LELNEIAGKHGVGRIDIVENRVIGIKSREVYEAPGATILIKAHRDLESLTLDREVLHFKDIVDPKYAELVYNGLWFSPLR 318 (385) T ss_pred HHHHHHHHHCCCCCEEECCCEEECEEEEEEEECCHHHHHHHHHHHHHHHHCCHHHHHHHHHHHHHHHHHHHCCCCCCHHH T ss_conf 99998875341051320164000112200563553889999999999985779999999999999999985435578889 Q ss_pred HHHHHHHHHHHCCCCEEEEEEEECCEEEEEEEECCCCCCCHHHCCCCCCCCCCCHHHHHHHHHHCCHH Q ss_conf 99999999972336739999990615999877278310883222301577878887854788870334 Q gi|254780234|r 327 EMLQALIDKSQEYVEGSITLKLYKGNVMVVGRESNKSLYSDKLVTFEDDLDAYNQSDSEGFIKLHALR 394 (404) Q Consensus 327 ~~l~a~i~~~q~~VtG~V~l~L~kG~~~v~gr~S~~sLy~~~~as~~~~~~~~~~~da~GFi~i~~l~ 394 (404) T Consensus 319 ~~l~afi~~tq~~VtG~V~l~LykG~~~v~gr~S~~sLY~~~~as~~~~-~~~~~~da~GFi~i~~l~ 385 (385) T cd01999 319 EALEAFIDKTQERVNGTVRLKLYKGNVIVVGRESPNSLYSEELASYDED-GGFDQKDAEGFIKIHGLR 385 (385) T ss_pred HHHHHHHHHHHCEEEEEEEEEEECCEEEEEEEECCCHHCCCCCCCCCCC-CCCCHHHHHHHHHHHCCC T ss_conf 9999999986384279999999788389998648701146524513479-998968834557873379

HHsearch alignment for GI: 254780234 and conserved domain: cd01999