>cd06110 BSuCS-II_like Bacillus subtilis (Bs) citrate synthase (CS)-II_like. CS catalyzes the condensation of acetyl coenzyme A (AcCoA) and oxalacetate (OAA) to form citrate and coenzyme A (CoA), the first step in the citric acid cycle (TCA or Krebs cycle). 2MCS catalyzes the condensation of propionyl-coenzyme A (PrCoA) and OAA to form 2-methylcitrate and CoA during propionate metabolism. The overall CS reaction is thought to proceed through three partial reactions: a) the carbanion or equivalent is generated from AcCoA by base abstraction of a proton, b) the nucleophilic attack of this carbanion on OAA to generate citryl-CoA, and c) the hydrolysis of citryl-CoA to produce citrate and CoA. This group contains proteins similar to BsCS-II, the major CS of the gram-positive bacterium Bacillus subtilis. A mutation in the gene which encodes BsCS-II (citZ gene) has been described which resulted in a significant loss of CS activity, partial glutamate auxotrophy, and a sporulation deficiency, a

Probab=100.00 E-value=0 Score=893.44 Aligned_cols=356 Identities=37% Similarity=0.624 Sum_probs=342.1 Q ss_pred CCCCCEEEEEEEEEEEECCCCEEEECCEEHHHHHHHCCHHHHHHHHHCCCCCCHHHHHHHHHHHHHCCCCCHHHHHHHHH Q ss_conf 88786238787565433447778989931999975089899999998187999899999999886406899899999985 Q gi|254780355|r 44 PAFSSTASCKSKITFIDGNNGILLYRGYPIEQLSEKSDFLEVCYLLLHGELANVSQQKDFNDKISRHALLNENMSRFFMG 123 (429) Q Consensus 44 pG~~~ta~ceS~IT~IDG~~G~L~YRGY~IedLa~~~sFeEVayLLl~GeLPt~~el~~F~~~l~~~~~lpe~v~~~i~~ 123 (429) T Consensus 1 ~Gl~gv~~~~s~is~idg~~G~L~YRGy~i~~La~~~~fEeva~LLl~G~lP~~~el~~f~~~l~~~~~lp~~~~~~l~~ 80 (356) T cd06110 1 KGLEGVIAADSKISYIDGDAGILIYRGYDIHDLAENSTFEEVAYLLWNGELPTAEELDAFKAQLAAERELPAEIIDLLKL 80 (356) T ss_pred CCCCCCEEEEEECEEEECCCCEEEECCEEHHHHHCCCCHHHHHHHHHCCCCCCHHHHHHHHHHHHHCCCCCHHHHHHHHH T ss_conf 99899716578681686898889898923999861699999999997899969999999999998767899989999985 Q ss_pred HCCCCCHHHHHHHHHHHHHHHHCCCCCCCCHHHHHHHHHHHHHHHHHHHHHHHHHHCCCCCCCCCCCHHHHHHHHHHHCC Q ss_conf 12476525789999999875206855767878898889999999999999999972798534888642468877876428 Q gi|254780355|r 124 FPSSAHPMAMLVSAVGALSSFYYSPSGVQDLEQCVNVSLRMIAKISTIAAMIYKYSIGQPFVYPRSDLDYASNFLHMCFS 203 (429) Q Consensus 124 ~p~~ahPM~~L~~~vsaL~a~~~~~~~~~d~~~~~~~a~rLiA~~p~i~A~~yr~~~G~~~i~Pd~~lsyaeNfL~Ml~~ 203 (429) T Consensus 81 ~p~~~hpm~~l~~~vs~l~~~~~~~~~~-~~~~~~~~a~~lia~~p~i~a~~~r~~~g~~~~~p~~~l~~a~nfl~ml~g 159 (356) T cd06110 81 LPKDAHPMDVLRTAVSALALYDPEADDM-SREANLRKAIRLIAKMPTIVAAFHRIRNGLEPVAPDPDLSHAANFLYMLTG 159 (356) T ss_pred CCCCCCCHHHHHHHHHHHHHCCCCCCCC-CCHHHHHHHHHHHHHHHHHHHHHHHHHCCCCCCCCCCHHHHHHHHHHHHCC T ss_conf 7766663679999999987329545446-848999999986609999999999996799988999315499999987438 Q ss_pred CCCCCCCCCHHHHHHHHHHHHEECCCCCCCHHHHHHHHHCCCCCHHHHHHHHHHHHHHHHHCCCCHHHHHHHHHCCCCCH Q ss_conf 98410147969999987563501367876301555544205654246776755421002220352899999862155351 Q gi|254780355|r 204 VPCAEYQVNPLLARAMNRIFILHADHEQNASTSTVRLAGSSGADPFACIAAGVACLGGRAHGGANEEALNMLMEIGSLER 283 (429) Q Consensus 204 ~~~~~~~~~~~~~~ald~~LILhADHe~NaSTft~R~vaSt~adlysai~agi~aL~GPlHGGAne~v~~ml~~I~~~~~ 283 (429) T Consensus 160 ~-----~p~~~~~~~l~~~LiL~ADHe~NaSTfaaRvvaSt~ad~ysav~agi~aL~GPlHGGAn~~v~~ml~~i~~~~~ 234 (356) T cd06110 160 E-----KPSEEAARAFDVALILHADHELNASTFAARVVASTLSDMYSAVTAAIGALKGPLHGGANERVMKMLLEIGSVDN 234 (356) T ss_pred C-----CCCHHHHHHHHHHHHHHCCCCCCCHHHHHHHHHCCCCCHHHHHHHHHHHHCCCCCCCHHHHHHHHHHHHCCHHH T ss_conf 8-----99989999999999997147777066888998468887378999999981687633589999999998488667 Q ss_pred HHHHHHHHHHCCCCCEEECCCCCCCCCCCHHHHHHHHHHHHHHHHCCCCCCHHHHHHHHHHHHHHHHHHCCCCCCCCCCC Q ss_conf 27999999821478614302774355554034689999999888608776517999999999996115314579877844 Q gi|254780355|r 284 IPHYIMRAKDKNDPFRIMGFGHRVYRNHDPRCRIMRETMYEVLEVTGRFNDPIAQVAIELERIALEDEYFIERKLYPNVD 363 (429) Q Consensus 284 v~~~i~~~~~~~~~~ri~GfGHrvyk~~DPRa~~l~~~~~~l~~~~~~~~~~~~~~a~~le~~a~~d~~~~~r~l~pNvD 363 (429) T Consensus 235 v~~~i~~~l~~~~--~i~GFGHrvY~~~DPRa~~l~~~~~~l~~~~~--~~~l~~~a~~ie~~~~~-----~k~~~pNVD 305 (356) T cd06110 235 VAAYVKDKLANKE--KIMGFGHRVYKTGDPRAKHLREMSRRLGKETG--EPKWYEMSEAIEQAMRD-----EKGLNPNVD 305 (356) T ss_pred HHHHHHHHHHCCC--CCCCCCCCCCCCCCCHHHHHHHHHHHHHHHCC--CCHHHHHHHHHHHHHHH-----HHCCCCCHH T ss_conf 9999999983789--88888876688889579999999999976038--85799999999999999-----858997818 Q ss_pred HHHHHHHHHCCCCHHHHHHHHHHHHHHHHHHHHHHHHHCCCCCCCCCCCCCCC Q ss_conf 78899999849996685899999999899999999970789830045621058 Q gi|254780355|r 364 FYSGITLRALGFPTNLFTVLFAVARTAGWVSQWTEMIVDPSRRIGRPRQLYTG 416 (429) Q Consensus 364 fysg~i~~~lGip~~~ft~iFa~~R~~Gw~AH~~Eq~~~~~~ri~RP~~~Y~G 416 (429) T Consensus 306 fysg~l~~~lGip~~~~t~lFa~~R~~GW~AH~~Eq~~~--~~iiRP~~~YvG 356 (356) T cd06110 306 FYSASVYYMLGIPVDLFTPIFAISRVSGWCAHILEQYFN--NRLIRPRAEYVG 356 (356) T ss_pred HHHHHHHHHHCCCHHHHHHHHHHHHHHHHHHHHHHHHHC--CCCCCCCCCCCC T ss_conf 899999999494945668999999999999999999728--987587770679

HHsearch alignment for GI: 254780355 and conserved domain: cd06110