HHsearch alignment for GI: 254780901 and conserved domain: TIGR02188

>TIGR02188 Ac_CoA_lig_AcsA acetate--CoA ligase; InterPro: IPR011904 Acetyl-CoA synthetase (also known as acetate-CoA ligase and acetyl-activating enzyme) is a ubiquitous enzyme, found in both prokaryotes and eukaryotes, which catalyses the formation of acetyl-CoA from acetate, coenzyme A (CoA) and ATP as shown below : ATP + acetate + CoA = AMP + diphosphate + acetyl-CoA The activity of this enzyme is crucial for maintaining the required levels of acetyl-CoA, a key intermediate in many important biosynthetic and catabolic processes. It is especially important in eukayotic species as it is the only route for the activation of acetate to acetyl-CoA in these organisms (some prokaryotic species can also activate acetate by either acetate kinase/phosphotransacetylase or by ADP-forming acetyl-CoA synthase). Eukaryotes typically have two isoforms of acetyl-CoA synthase, a cytosolic form involved in biosynthetic processes and a mitochondrial form primarily involved in energy generation. The crystal structures of a eukaryotic (Q01574 from SWISSPROT, from yeast) and bacterial (Q8ZKF6 from SWISSPROT, from Salmonella) form of this enzyme have been determined , . The yeast enzyme is trimeric, while the bacterial enzyme is monomeric. The trimeric state of the yeast protein may be unique to this organism however, as the residues involved in the trimer interface are poorly conserved in other sequences. Despite differences in the oligomeric state of the two enzyme, the structures of the monomers are almost identical. A large N-terminal domain (~500 residues) containing two parallel beta sheets is followed by a small (~110 residues) C-terminal domain containing a three-stranded beta sheet with helices. The active site occurs at the domain interface, with its contents determining the orientation of the C-terminal domain.; GO: 0003987 acetate-CoA ligase activity, 0016208 AMP binding.
Probab=92.13  E-value=0.79  Score=26.44  Aligned_cols=340  Identities=18%  Similarity=0.209  Sum_probs=174.4

Q ss_pred             CHHHCCCHHHHHHHHHHHHHCCCCEEEEECCCCCHHHHHHHHHHHHHHCCCCEEEEECCCCCCCCCCCHHHH-HHHHHCC
Q ss_conf             955614879999999999977997999940788615289999999997699479980787433668897898-8742026
Q gi|254780901|r   71 DPLILTDCDKAARRIVQAIYNSEKIMIFGDYDVDGAASVALMMRFLSHCSVNANMYIPDRIVDGYGPNPSLM-EKFINEG  149 (600)
Q Consensus        71 dP~~l~dm~~A~~ri~~ai~~~ekI~I~gDyD~DGitstail~~~L~~~g~~v~~~IP~R~~eGYGl~~~~i-~~~~~~g  149 (600)
T Consensus        99 Y~eL~~~Vcr~An~LK~GvkkGD~V~IY----mPMiPEa~~AMLACaRIGA~HSVVF----g---GFSa~aL~~Ri~Da~  167 (643)
T TIGR02188        99 YRELHREVCRFANVLKLGVKKGDRVAIY----MPMIPEAAIAMLACARIGAIHSVVF----G---GFSAEALADRINDAG  167 (643)
T ss_pred             HHHHHHHHHHHHHHHHCCCCCCCEEEEE----CCCCHHHHHHHHHHHHCCCEEEEEC----C---CCCHHHHHHHHHCCC
T ss_conf             8899899999999974476468878995----7881899999988643685267872----5---774789988753277


Q ss_pred             CCEEEEECCCCCCHHH------HHHHHH-C-----CC-CEEEECCCCCC-C------------CCCC-CEEEECCCCCCC
Q ss_conf             8689996488762345------555541-7-----98-27996154476-5------------5567-256523788886
Q gi|254780901|r  150 AQLIITVDCGSTSYDA------LQYATN-Q-----GI-DVIVIDHHQVK-S------------EEIP-AYALVNPNRLDD  202 (600)
Q Consensus       150 ~~LiItvD~Gi~~~e~------i~~a~~-~-----Gi-dvIVtDHH~~~-~------------~~p~-a~aivNP~~~~~  202 (600)
T Consensus       168 ak~VITAD~g~RgGK~~~LK~~VD~AL~~~~~~~~~V~~VlV~~RtG~~~~~w~~GRD~wwh~l~~~~~~~~c~Pe~m~s  247 (643)
T TIGR02188       168 AKLVITADEGLRGGKVIPLKAIVDEALEKCPDTCPSVEKVLVVRRTGGPVVPWVEGRDVWWHELVAKGQSAECEPEPMDS  247 (643)
T ss_pred             CCEEEECCCCCCCCCCCCHHHHHHHHHHHCCCCCCCCCEEEEEEECCCCCCCCCCCCCCHHHHHHCCCCCCCCCCCCCCC
T ss_conf             75899437740588643036899999960786745300678998558887775488876068985378878246541787


Q ss_pred             CCCCCCHHHHHHH------------HHHHHHHHHHHCCCCCCCCHHHHHHHHHHHHHHHHHCC-----------CCC---
Q ss_conf             4334430478899------------99999999970214887640779999999877542011-----------114---
Q gi|254780901|r  203 LSGQGHLCAAGVV------------FLVLVLIYRILRQDNKVPLNFDLLSLLDLVALATVCDV-----------VPL---  256 (600)
Q Consensus       203 ~~p~~~l~gaGva------------f~l~~al~~~l~~~~~~~~~~~l~~~ldlvaiGTvaD~-----------vpL---  256 (600)
T Consensus       248 EDPLFiLYTSGSTGKPKGv~HttgGYll~a~~T~k~VFD~~--------d~-D--~fWCTADvGWiTGHSYiVYGPL~~G  316 (643)
T TIGR02188       248 EDPLFILYTSGSTGKPKGVLHTTGGYLLYAAMTMKYVFDIK--------DG-D--IFWCTADVGWITGHSYIVYGPLANG  316 (643)
T ss_pred             CCCHHHHHCCCCCCCCCCCEECCHHHHHHHHCCEEEEEECC--------CC-C--EEEEECCEEEEECCHHHHHHHHHCC
T ss_conf             66026763478778887214341779988732146764037--------99-6--2686211200205324012422115


Q ss_pred             ------------------------CCCC---------HHHHHHHHHHHHHCCCCCHHHHHHHHCCCCCCCH---------
Q ss_conf             ------------------------4411---------8999987887751688743578987088864242---------
Q gi|254780901|r  257 ------------------------IGLN---------RAYVVKGLMVARRQGNPGLKALIERVNISSPITA---------  294 (600)
Q Consensus       257 ------------------------~~eN---------R~lvk~GL~~l~~~~~~gl~~L~~~~~~~~~i~~---------  294 (600)
T Consensus       317 AT~~mfEG~P~YP~~~R~W~~iekh~vtiFYTAPTAIR~L~r~G~~~~~k~DlSSLR~LGS---VGEPINPEAW~WY~~~  393 (643)
T TIGR02188       317 ATTLMFEGVPTYPDAGRFWEIIEKHKVTIFYTAPTAIRALMRLGDEWVKKHDLSSLRLLGS---VGEPINPEAWMWYYKV  393 (643)
T ss_pred             CEEEEECCCCCCCCCCCEEEEEEECCCCEEECCHHHHHHHHHHCCHHHHHCCCCCEEECCC---CCCCCCHHHHHHHHHC
T ss_conf             3178743778332787678553315765033156899999861112134417640015025---6888764478899870


Q ss_pred             ---------------HHHHHHHHHHCCHHHHH--CCC---CCCCEEEECC-CHHHHHHHHHHHHHHHHHHHHHHHHHHHH
Q ss_conf             ---------------34566677430623331--212---2221002034-25899999999998999999999999999
Q gi|254780901|r  295 ---------------ENLGYMIGPSINAGGRI--GES---NLGSRLLISD-DSQELEMLAMKLDVLNQNRRLMESAMLEQ  353 (600)
Q Consensus       295 ---------------~di~f~iaPrINAaGRl--~~a---~~av~lL~~~-d~~~a~~la~~L~~lN~~Rk~~e~~i~~~  353 (600)
T Consensus       394 vG~~~CpiVDTWWQTETGgimItPlPG~~~p~KPGSAt~PffGi~p~~vDP~~G~-------------------------  448 (643)
T TIGR02188       394 VGKERCPIVDTWWQTETGGIMITPLPGAATPTKPGSATLPFFGIEPAVVDPEEGK-------------------------  448 (643)
T ss_pred             CCCCEEEEECCCCCCCCHHHHHCCCHHHHHHCCCCCCCCCCCCCEEEEECCCCCC-------------------------
T ss_conf             4895200761654510025334040125763487768748887247887189885-------------------------


Q ss_pred             HHHHHHHHHCCCCCC-CEEEEECCCCCHHHHHHH--HHHHHHHHHC--EE---EEEE-----ECCCCEEEEEEECC----
Q ss_conf             999987521124347-502620578581222222--7899884201--07---9988-----63798379998648----
Q gi|254780901|r  354 AEAKVLTQCDDIQQA-SVIVVEGDRWHPGIVGLL--AARLKEKFGR--PS---FAIS-----FEEDGKGIGSGRSI----  416 (600)
Q Consensus       354 a~~~~~~~~~~~~~~-~~ivv~~~~wh~GViGIV--AsrL~e~y~k--P~---iv~s-----~~~dg~~kGS~RSi----  416 (600)
T Consensus       449 ---~~~--G-~~~~g~G~LvI~~P-WPsm~RtiyGDh~Rf~~tYf~~~~~~G~~YFtGDGA~rD~DGY~WI~GRvDDViN  521 (643)
T TIGR02188       449 ---EVE--G-PGEGGAGYLVIKQP-WPSMLRTIYGDHERFVETYFSPFPGKGKYYFTGDGARRDKDGYIWITGRVDDVIN  521 (643)
T ss_pred             ---EEC--C-CCCCCCEEEEECCC-CCCHHCCCCCCCHHHHHCCCCCCCCCCCEEEECCCEEECCCCCEEEEEEEEEEEE
T ss_conf             ---733--7-77677507887788-8520022468832567505324789986367366002558988799415612865


Q ss_pred             -CC-----CCHHHHHHHHCCCCCCC--------CCCCCCCCCCEEECCC--CHHHHHHHHHHHHHHHCCH
Q ss_conf             -98-----61888888530335301--------1565322231464222--1588999999999862264
Q gi|254780901|r  417 -EG-----FDIGKMVSFAVEEGILV--------KGGGHAMAAGLTVERV--NFGRLCDFFQKFAHNIVPA  470 (600)
Q Consensus       417 -~g-----~~l~~~l~~~~~~~ll~--------~~GGH~~AaG~ti~~~--~l~~f~~~l~~~~~~~~~~  470 (600)
T Consensus       522 VSGHRLGTaEiESALv--~Hp~VAEAAVVG~pd~iKGq~i~AFV~L~~~~~~~~-l~~EL~~~Vr~~IGp  588 (643)
T TIGR02188       522 VSGHRLGTAEIESALV--SHPAVAEAAVVGIPDDIKGQAIYAFVTLKDGVEPDD-LRKELRKHVRKEIGP  588 (643)
T ss_pred             ECCCCCCHHHHHHHHH--CCCCCCEEEEECCCCCCCCCEEEEEEEECCCCCCCH-HHHHHHHHHHHHCCC
T ss_conf             1565654689999985--685555456206788864456899998558887336-999999999986077