HHsearch alignment for GI: 254780497 and conserved domain: TIGR01833
>TIGR01833 HMG-CoA-S_euk hydroxymethylglutaryl-CoA synthase; InterPro: IPR010122 Synonym(s): 3-hydroxy-3-methylglutaryl-coenzyme A synthase, HMG-CoA synthase. Hydroxymethylglutaryl-CoA synthase (2.3.3.10 from EC) catalyses the condensation of acetyl-CoA with acetoacetyl-CoA to produce HMG-CoA and CoA, the second reaction in the mevalonate-dependent isoprenoid biosynthesis pathway. HMG-CoA synthase contains an important catalytic cysteine residue that acts as a nucleophile in the first step of the reaction: the acetylation of the enzyme by acetyl-CoA (its first substrate) to produce an acetyl-enzyme thioester, releasing the reduced coenzyme A. The subsequent nucleophilic attack on acetoacetyl-CoA (its second substrate) leads to the formation of HMG-CoA . HMG-CoA synthase occurs in eukaryotes, archaea and certain bacteria . In vertebrates, there are two isozymes located in different subcellular compartments: a cytosolic form that is the starting point of the mevalonate pathway (leads to cholesterol and other sterolic and isoprenoid compounds), and a mitochondrial form responsible for ketone body biosynthesis. HMG-CoA is also found in other eukaryotes such as insects, plants and fungi . In bacteria, isoprenoid precursors are generally synthesised via an alternative, non-mevalonate pathway, however a number of Gram-positive pathogens utilise a mevalonate pathway involving HMG-CoA synthase that is parallel to that found in eukaryotes , . This entry is specific for eukaryotic HMG-CoA synthase enzymes.; GO: 0004421 hydroxymethylglutaryl-CoA synthase activity, 0008299 isoprenoid biosynthetic process.
Probab=99.93 E-value=8.2e-25 Score=178.13 Aligned_cols=302 Identities=16% Similarity=0.190 Sum_probs=214.5
Q ss_pred CEEEEEEEEEECCCCEECHHHHHHHHCCCHHHHHHCCCCCEEEEECCCCCHHHHHHHHHHHHHHHHCCCCCCCCEEEEEC
Q ss_conf 22699999996498411788999880999878110247518898289889999999999999974021235443366501
Q gi|254780497|r 2 IRSTVRGIGLSLPRRVLSNSDLESIVDTSDGWIKRRVGISRRHIAGKDETTASLGEAAARDALHHAEMSVDDIDLIIVAT 81 (324)
Q Consensus 2 ~~~~I~~~g~ylP~~~v~~~el~~~~~~~~~~i~~~~GI~~R~~~~~~e~~~~la~~Aa~~al~~a~~~~~~Id~ii~~s 81 (324)
T Consensus 3 ~dVGI~al~~yfP~~yV~Q~~LE~yDgVs~GKYTiGLGq~~mgFc~drEDI~Sl~LTvv~~L~er~~id~~~IGRLEVGT 82 (461)
T TIGR01833 3 KDVGILALEIYFPSQYVDQAELEKYDGVSAGKYTIGLGQTKMGFCTDREDINSLCLTVVSKLMERYQIDYNKIGRLEVGT 82 (461)
T ss_pred CCCEEEEEEEECCCCCCCHHHHHHHCCCCCCCEEECCCCCCCEEECCCCHHHHHHHHHHHHHHHHHCCCCCCCCEEECCC
T ss_conf 87406888863688752657786326888895034235662000022101566658999999986078715431101042
Q ss_pred CCCCCCCCCCCCCHH---HHHHCCCCCCCCCCCCCCCHHHHHHHHHHHHHHCC--CCCCEEEEECCCCCCCCCCCCCCCC
Q ss_conf 223345898531001---12202686444421012200346788899896415--5653167630224322245663232
Q gi|254780497|r 82 STPDQTFPSTAVNIQ---NRLGMKRGFAFDMQAVCSGFVYAVTTADSYIRSGV--VRRVMVIGSDTFSRIVDWSDRSTCV 156 (324)
Q Consensus 82 ~~~~~~~p~~a~~i~---~~LGl~~~~~~di~~~C~~~~~al~~A~~li~~g~--~~~~Lvv~~e~~S~~~d~~d~~~~~ 156 (324)
T Consensus 83 ETiiDKSKSVKtVLMQLF~~sGNTDvEGiDt~NACYGGTaALFNa~~WiESssWDGRyalVVagDiA--v--Ya~G~ARP 158 (461)
T TIGR01833 83 ETIIDKSKSVKTVLMQLFEESGNTDVEGIDTVNACYGGTAALFNAINWIESSSWDGRYALVVAGDIA--V--YAKGNARP 158 (461)
T ss_pred EEEEECHHHHHHHHHHHHHHCCCCCCCCCCCCCCCHHHHHHHHHHHHHHHCCCCCCCCEEEEEEEEE--E--CCCCCCCC
T ss_conf 5341001035577677542057954353255341122479997545432126753034124532111--3--48889887
Q ss_pred CCCCCCCEEEEECCCCCCCCCCCCCCEEEEEECCCCCCCCEEECCCCCCCCCCCCHHHCCHHHHHHHHHHHHH-------
Q ss_conf 3454431234402654465434454101232035555561775487654443320010320244455777777-------
Q gi|254780497|r 157 LFGDGAGALILEGVEVKGSSMADTGILSTYLCSDGSYIDKLYVDGGPSTSRTVGCIRMEGKAVFKYAVEKAVE------- 229 (324)
Q Consensus 157 lfGDGAaA~ll~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~g~~~~~~~~~~~~~------- 229 (324)
T Consensus 159 TGGAGavAmLiGp~APi---vfe~glR~shM~HaYDFYK----PdL-----~SEYP~VDGklS~~CYl~ALD~cY~~y~~ 226 (461)
T TIGR01833 159 TGGAGAVAMLIGPNAPI---VFERGLRASHMQHAYDFYK----PDL-----ASEYPVVDGKLSIQCYLSALDRCYKSYCK 226 (461)
T ss_pred CHHHHHHHHHHCCCCCE---EECCCCCHHHHCCCCCCCC----CCC-----CCCCCEECCCCCHHHHHHHHHHHHHHHHH
T ss_conf 52899999975689888---7427754122214533368----888-----31685044530587899898888899888
Q ss_pred ----HHHHHHHH-HHCCCCCCCCCCCCCCC-HHHHHHHHHHC------------------------CCCH---------H
Q ss_conf ----78888987-40010001210244444-15899999971------------------------9787---------6
Q gi|254780497|r 230 ----LIEKVFDS-THLTIENIDWFVPHQAN-WRIINSIVDKM------------------------KIPF---------D 270 (324)
Q Consensus 230 ----~i~~~L~~-~gl~~~did~~~~Hq~~-~~~~~~~~~~l------------------------gl~~---------e 270 (324)
T Consensus 227 K~~~~~~~~~~~~~~f~l~~~dy~vFH~PyCKlVqKS~ARLlyNDF~~~~~~~~~~~~~~~~~~l~~l~~~~ty~drd~E 306 (461)
T TIGR01833 227 KIEKQLGKSGKDGRKFTLDDFDYMVFHSPYCKLVQKSLARLLYNDFLANPSSETDTALYEVLEALSTLKLEDTYTDRDLE 306 (461)
T ss_pred HHHHHHHCCCCCCCCCCHHHCCEEEEECCCCHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHCCCHHHHHCCHHHH
T ss_conf 89987420244676330634473675077322689999999888876322344556666667765337711200232588
Q ss_pred HHHHH----------------HHHHCCCHHHHHHHHHHHHHHCCCCC--CCCEEEEEEECCCCCEEE
Q ss_conf 73365----------------86519330126999999999806889--998999999714501456
Q gi|254780497|r 271 KVIVT----------------VDIHGNTSAASIPLALAVAVKEGRVK--KGDCLLLEAMGGGFTSGT 319 (324)
Q Consensus 271 ~~~~~----------------~~~~Gn~~sas~~~~L~~~~~~g~l~--~Gd~vll~~~G~G~s~~a 319 (324)
T Consensus 307 K~~~~~sk~~f~~k~~~Sl~~~~~~GNMYT~SlYg~laSLL~~~~~~eLaGkRv~~FSYGSGlAAs~ 373 (461)
T TIGR01833 307 KAFMKISKELFDKKVKPSLLLPTQVGNMYTASLYGCLASLLSSKSADELAGKRVGLFSYGSGLAASL 373 (461)
T ss_pred HHHHHHHHHHHHHHCCCEEEECCCCCCCCHHHHHHHHHHHHHCCCHHHHCCCEEEEEECCHHHHHHH
T ss_conf 9999999998861020002100057864007899999999740780130775699863624554321