>TIGR01240 mevDPdecarb diphosphomevalonate decarboxylase; InterPro: IPR005935 Synonyms: mevalonate diphosphate decarboxylase; pyrophosphomevalonate decarboxylase. This group of enzymes belongs to the GHMP kinase domain superfamily. GHMP kinases are a unique class of ATP-dependent enzymes (the abbreviation of which refers to the original members: galactokinase, homoserine kinase, mevalonate kinase, and phosphomevalonate kinase) . Enzymes belonging to this superfamily contain three well-conserved motifs, the second of which has the typical sequence Pro-X-X-X-Gly-Leu-X-Ser-Ser-Ala and is involved in ATP binding . The phosphate binding loop in GHMP kinases is distinct from the classical P-loops found in many ATP/GTP binding proteins. The bound ADP molecule adopts a rare syn conformation and is in the opposite orientation from those bound to the P-loop-containing proteins . GHMP kinases display a distinctly bilobal appearance with their N-terminal subdomains dominated by a mixed beta-sheet flanked on one side by alpha-helices and their C-terminal subdomains containing a four stranded anti-parallel beta-sheet , , , . Diphosphomevalonate decarboxylase (mevalonate pyrophosphate decarboxylase, (4.1.1.33 from EC) catalyzes the decarboxylation of mevalonate pyrophosphate to isopentyl pyrophosphate (IPP) , the last step in the synthesis of IPP in the mevalonate pathway. Mevalonate is a key intermediate in the biosynthesis of sterols and non-sterol isoprenes in the mevalonate pathway. In mammals, the majority of mevalonate is converted into cholesterol. ATP + (R)-5-diphosphomevalonate = ADP + phosphate + isopentenyl diphosphate + CO2 ; GO: 0004163 diphosphomevalonate decarboxylase activity, 0008299 isoprenoid biosynthetic process.

Probab=100.00 E-value=0 Score=725.81 Aligned_cols=300 Identities=39% Similarity=0.614 Sum_probs=283.6 Q ss_pred EEEECCCCEEEEECCCCCCHHHCCCCCCCEEEEECC--CCEEEEEE-ECCC-CCCEEEECCEECCCCCHHHHHHHHHHHH Q ss_conf 789748842488116776701175789843468127--81079999-7178-8857998787256652068999999742 Q gi|254781016|r 24 SSAFLPSNIALCKYWGKRDSKLNLPLNNSLSLSLGH--LGTITHIT-VIDS-DADCIILNGQKISSQSSFFKKTTQFCDL 99 (355) Q Consensus 24 ~ta~ap~NIALIKYWGK~d~~l~lP~n~SiS~TL~~--~~T~T~v~-~~~~-~~d~~~lnG~~~~~~~~~~~ri~~~l~~ 99 (355) T Consensus 1 ~~vtay~NIA~iKYWGK~n~~l~lP~nsSiSlTL~~dd~~T~Tsv~f~~d~~~~D~fylnG~lq~~~~--~~k~s~~ld~ 78 (325) T TIGR01240 1 AKVTAYVNIALIKYWGKKNEKLILPTNSSISLTLEQDDLYTLTSVAFLADEFERDEFYLNGVLQDEKD--NEKVSNILDD 78 (325) T ss_pred CEEECCHHHEEHCCCCCCCCCCCCCCCCCEEEEECCCCCEEEEEEEECCCCCCCCEEEECCCCCCHHH--HHHHHHHHHH T ss_conf 92214102000002576242114874564257634764302123356288631012477573787034--5589999998 Q ss_pred HHHHC--------------CCEEEEEEECCCCCCCHHHHHHHHHHHHHHHHHHHHCCCCCHHHHHHHHHHCCCCCHHHHC Q ss_conf 16761--------------9439999850233211012322479999999999818899988999886521353034310 Q gi|254781016|r 100 FRQFS--------------KVYFLIETSNNIPTKAGLASSASGFAALTLALFRIYSIPEKSESLSRVARLGSGSACRSFY 165 (355) Q Consensus 100 ~r~~~--------------~~~~~I~S~N~fPtaaGLASSASgfAALa~Al~~~~~~~~~~~~lS~lARlGSGSA~RSi~ 165 (355) T Consensus 79 fRq~~~~~~skdaslPtlsqWk~~~~s~Nn~PTAAGLaSSasGlaALv~A~~~l~~l~ld~~~lsr~Ar~gSGSacRS~F 158 (325) T TIGR01240 79 FRQEAKESESKDASLPTLSQWKVKVVSQNNVPTAAGLASSASGLAALVSACDKLYKLQLDDKELSRIARKGSGSACRSLF 158 (325) T ss_pred HHHHHHHHHHHHCCCCCCEEEEEEEEEECCCCHHHHHHHHHHHHHHHHHHHHHHHHCCCCHHHHHHHHHHCCCCCHHHHC T ss_conf 62221122222125641000046788507862144466689999999999999970798878999886421673003205 Q ss_pred CCCHHCCCCCCCCCCCEEEEECCCC--CCCCEEEEEEECCCCCCCCCCHHHHHHHHHCHHHHHHHHHHHHH-HHHHHHHH Q ss_conf 5620025789876544131015666--86421589997287667521056798876185689999730550-99999999 Q gi|254781016|r 166 RGFCEWICGTDQNGMDSFAVPFNNQ--WPDLRIGLLKIIDREKKIGSREAMEITRHHSPFFTQWTQQISTD-LAHIKQAI 242 (355) Q Consensus 166 GG~v~W~~g~~~~~sds~a~~~~~~--~~dl~~~i~iv~~~~K~vsSt~gm~~~v~tSp~y~~r~~~~~~~-~~~~~~ai 242 (355) T Consensus 159 Gg~vaWekG~~edd~ss~a~~v~~dS~~~~ma~~~lv~nd~KK~vSSr~GM~ltv~TS~~f~ew~e~v~~dr~~~m~~ai 238 (325) T TIGR01240 159 GGYVAWEKGKDEDDLSSAAVKVEDDSDEDKMAMVVLVVNDIKKDVSSREGMKLTVETSELFKEWVESVVIDRFEVMKKAI 238 (325) T ss_pred CCCCCCCCCCCCCCCCCEEEECCCCCCCCCCEEEEEEEECCCCCCCCHHHHHHHHHHHHHHHHHHHHCCCHHHHHHHHHH T ss_conf 88000027767678874036567778500110777763136887453035688898777642234310005899999997 Q ss_pred HHCCHHHHHHHHHHHHHHHHHHHHCCCCCEEEECHHHHHHHHHHHHHHH--CCCEEEEEECCCCEEEEEECHHHHHHHHH Q ss_conf 8099999999999999989998703899568657889999999999742--89619999777981799955898999999 Q gi|254781016|r 243 IDQDFIKLGEVAEKNALKMHATMIAASPPLLYWQKETIQGMERVWDARQ--QSIPIYFTLDAGPNLKLLFTHKIEETIKQ 320 (355) Q Consensus 243 ~~~Df~~l~~i~e~dal~mHa~~~~s~P~~~Y~~~~t~~ii~~v~~~R~--~g~~v~fT~DAGPNv~il~~~~~~~~i~~ 320 (355) T Consensus 239 k~kdF~~~g~~t~~n~l~mHaTtl~a~PPf~Y~~~~S~~a~~av~~lrqfy~g~~~yfTmDAGPNvkvl~l~~~ls~l~e 318 (325) T TIGR01240 239 KTKDFEKLGKETEANSLSMHATTLDAQPPFSYLSDESKKAMEAVKELRQFYEGIICYFTMDAGPNVKVLVLEEDLSKLAE 318 (325) T ss_pred HHHHHHHHHHHHHHHHHHHCCCCCCCCCCCCCCCHHHHHHHHHHHHHHHHHCCEEEEEECCCCCCEEEEEECCCHHHHHH T ss_conf 32128999999987456520000147748000384468999999999887388136874158885388762323689999 Q ss_pred HHHHC Q ss_conf 97632 Q gi|254781016|r 321 FFPEI 325 (355) Q Consensus 321 ~l~~i 325 (355) T Consensus 319 ~~~Kl 323 (325) T TIGR01240 319 TLTKL 323 (325) T ss_pred HHHHC T ss_conf 98430

HHsearch alignment for GI: 254781016 and conserved domain: TIGR01240