>cd01598 PurB PurB: PurB_like adenylosuccinases (adenylsuccinate lyase, ASL). This group contains proteins similar to EcASL, the product of the gene purB in Escherichia coli. ASL is a member of the Lyase class I family of the Lyase_I superfamily. Members of the Lyase class I family function as homotetramers to catalyze similar beta-elimination reactions in which a Calpha-N or Calpha-O bond is cleaved with the subsequent release of fumarate as one of the products. The four active sites of the homotetrameric enzyme are each formed by residues from three different subunits. ASL catalyzes two non-sequential steps in the de novo purine biosynthesis pathway: the conversion of 5-aminoimidazole-(N-succinylocarboxamide) ribotide (SAICAR) into 5-aminoimidazole-4-carboxamide ribotide (AICAR) and; the conversion of adenylsuccinate (SAMP) into adenosine monophosphate (AMP).

Probab=100.00 E-value=0 Score=590.17 Aligned_cols=400 Identities=24% Similarity=0.306 Sum_probs=331.9 Q ss_pred HHHHCCHHHHHHHHHHHHHHHHHHHHHCCCCCH------HHHHHHHHHHHHCC-CCHHHHHHHHHHHCCCHHHHHHHHHH Q ss_conf 887279588999999999999999777689998------99999998300127-89899998874637854799999998 Q gi|254780974|r 10 MTTLWSLETKFRIWFEIEAHACDALAKLGVIPE------KSSKNIWEKGRNAV-FNVDRIMELDSIIKHDVIAFLTHLAE 82 (435) Q Consensus 10 ~~~ifs~~~~~~~~l~ve~A~a~a~~e~G~ip~------~aa~~I~~~~~~~~-~d~~~~~~~~~~~~~~v~a~~~~l~~ 82 (435) T Consensus 1 Lr~~FSE~alik~rv~VEi~~l~~L~~~~~i~~~~~~~~~~~~~l~~i~~~f~~~d~~~Ik~iE~~tnHDVkAvey~i~e 80 (425) T cd01598 1 LRPYFSEYALIKYRVQVEVEWLIALSNLEEIPEVPPLTKEELKFLRAIIENFSEEDALRIKEIEATTNHDVKAVEYFLKE 80 (425) T ss_pred CHHHHCHHHHHHHHHHHHHHHHHHHHCCCCCCCCCCCCHHHHHHHHHHHHCCCHHHHHHHHHHHHHCCCCEEEHHHHHHH T ss_conf 95541868999999999999999996579876788789999999999997389989999999972518996451999999 Q ss_pred HCC------HHHCCCCCCCCCHHHHHHHHHHHHHHCC-HHHHHHHHHHHHHHHHHHHHHCCHHHHHHHHHHHHHHHHHHH Q ss_conf 679------3432255677707787789999985110-246788888899998733320100210123210255422233 Q gi|254780974|r 83 IIG------PDARFIHQGMTSSDILDTCFSIQLMRST-DILLEDIDQLLESLKKRAFEYKDTLTIGRSHGIHAEPTTFGL 155 (435) Q Consensus 83 ~~g------~~~~~iH~G~Ts~Di~~Ta~~l~~r~~l-~~l~~~l~~l~~~L~~~a~~~~~~~m~grTh~Q~A~P~T~G~ 155 (435) T Consensus 81 ~~~~~~~l~~~~e~IHfG~TSqDI~dta~~L~lk~a~~~vi~~~l~~l~~~L~~lA~~~~~tpmlgRTHGQ~A~PtTfGk 160 (425) T cd01598 81 KFETLGLLKKIKEFIHFACTSEDINNLAYALMIKEARNEVILPLLKEIIDSLKKLAKEYADVPMLSRTHGQPATPTTLGK 160 (425) T ss_pred HHHHCCCCCCCCCEEEECCCHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHCCCCHHHHHCCCCCCCCHHHH T ss_conf 98754121344333564664888987999999999999999888999999999999985456311042177663401999 Q ss_pred HHHHHHHHHHHHHHHHHHHHHHHHHHCCCCCCCCCCCC--------CHHHHHHHHHHCCCCCCCCCCCHHHHHHHHHHHH Q ss_conf 34455431000148899986431010011122222466--------4667886554225787663520233333456778 Q gi|254780974|r 156 KLAMAYAEFSRSRKRLLTAREEIAVCAISGSVGTFSNI--------HPYVEQHVADAMGLKTDPISSQVIARDRHAMYFS 227 (435) Q Consensus 156 ~~~~~~~~l~r~~~rl~~~~~~~~~~~lgGAvGt~~~~--------~~~~~~~~a~~LGl~~~~~~~~~~~rd~~~e~~~ 227 (435) T Consensus 161 e~a~~~~rl~r~~~rL~~~~---~~gk~~GAvGt~~Ah~~a~p~~dw~~~~~~f~~~LGL~~~~~tTQI~~rD~~ae~~~ 237 (425) T cd01598 161 ELAVFVYRLERQYKQLKQIE---ILGKFNGAVGNFNAHLVAYPDVDWRKFSEFFVTSLGLTWNPYTTQIEPHDYIAELFD 237 (425) T ss_pred HHHHHHHHHHHHHHHHHHHH---HHHHCCCCCCCHHHHHHHCCCCCHHHHHHHHHHHCCCCCCCCCCCCCCCHHHHHHHH T ss_conf 99999999999999999743---023105766632666763467649999999999728888988788566139999988 Q ss_pred HHHHHHHHHHHHHHHHHHHHCCCCCCCCCCCCCCCCCCHHHHHHCCHHHHHHHHH---HHHHHHHHCCHHHHHHHHHHCC Q ss_conf 8877644688999999995167876000256446542012321024156787752---1123343100235431143135 Q gi|254780974|r 228 VLGVIASSIERVATEIRHLQRTEILEVEEFFHPGQKGSSSMPHKRNPILTENLTG---LSRLIRSHVIPAMENVALWHER 304 (435) Q Consensus 228 ~l~~~~~~l~kia~Dl~~l~~~eigei~ep~~~~~~GSS~MP~K~NP~~~E~i~~---~a~~~~g~~~~~~~~~~~~~er 304 (435) T Consensus 238 ~l~~i~~~l~~la~Di~~~~s--~~~~~e~~~~gqvGSStMPHK~NPI~~En~egnl~la~~l~~~~~~~l~--~sr~qR 313 (425) T cd01598 238 ALARINTILIDLCRDIWGYIS--LGYFKQKVKKGEVGSSTMPHKVNPIDFENAEGNLGLSNALLNHLSAKLP--ISRLQR 313 (425) T ss_pred HHHHHHHHHHHHHHHHHHHHH--HHHHHCCCCCCCCCCCCCCCCCCCCHHHHHCCHHHHHHHHHHHHHHHCC--HHHHHH T ss_conf 999999999999999999985--0052126789898048888552850156650568889999999887333--188772 Q ss_pred CCCCCHHHHHCCCCHHHHHHHHHHHHHHHHHHCEECHHHHHHHHHHHCCHHHHHHHHHHHHHCCCCHHHHHHHHHHHHHH Q ss_conf 43210155541720457899999998742310043735799998644583789999999987299989999999999999 Q gi|254780974|r 305 DISHSSVERVIGPDATIHLDFALNRLKNVIEELVVYPENMKDNLEQLKGLIHSQRILLALTQAGVSREEAYQLVQRNAMK 384 (435) Q Consensus 305 d~~~~~~~~~~l~~~~~~~~~~l~~~~~ll~~L~vn~erm~~nl~~s~g~i~se~i~~~L~~~Gig~~~Ah~~v~~~a~~ 384 (435) T Consensus 314 DLsdStv~Rnig~-~~~~~~ia~~~~~~gL~~l~vn~~~m~~nL~-~~~~vlaEai~~~lr~~--G~~~aye~vk~ltrg 389 (425) T cd01598 314 DLTDSTVLRNIGV-AFGHSLIAYKSLLRGLDKLELNEARLLEDLD-ANWEVLAEPIQTVMRRY--GIPNPYEKLKDLTRG 389 (425) T ss_pred CCHHHHHHHHHHH-HHHHHHHHHHHHHHHHCCCEECHHHHHHHHH-CCCCHHHHHHHHHHHHH--CCCCHHHHHHHHHCC T ss_conf 2424677777765-3778999999999776285578999999987-18255999999999984--897889999998578 Q ss_pred HHHCCCCHHHHHHCCHHHHCCCCHHHHHHHCCHHHHHCC Q ss_conf 998199989998507432305998999985188988501 Q gi|254780974|r 385 VWKNGAIFLDVLLADVDIRKVLSEKEICDKFDYKYHTKH 423 (435) Q Consensus 385 a~~~~~~l~e~l~~d~~i~~~l~~~eL~~~ldP~~~~g~ 423 (435) T Consensus 390 ~~~~~~~l~~~i~~l-~~~~~-~k~~l~~-ltP~~Y~G~ 425 (425) T cd01598 390 KRIDKETLKEFIDSL-DIPEE-AKAELLA-LTPANYIGL 425 (425) T ss_pred CCCCHHHHHHHHHHC-CCCHH-HHHHHHC-CCCCCCCCC T ss_conf 988889999999838-99999-9999980-898466796

HHsearch alignment for GI: 254780974 and conserved domain: cd01598