>TIGR00763 lon ATP-dependent protease La; InterPro: IPR004815 Proteolytic enzymes that exploit serine in their catalytic activity are ubiquitous, being found in viruses, bacteria and eukaryotes . They include a wide range of peptidase activity, including exopeptidase, endopeptidase, oligopeptidase and omega-peptidase activity. Over 20 families (denoted S1 - S66) of serine protease have been identified, these being grouped into clans on the basis of structural similarity and other functional evidence . Structures are known for members of the clans and the structures indicate that some appear to be totally unrelated, suggesting different evolutionary origins for the serine peptidases . Not withstanding their different evolutionary origins, there are similarities in the reaction mechanisms of several peptidases. Chymotrypsin, subtilisin and carboxypeptidase C have a catalytic triad of serine, aspartate and histidine in common: serine acts as a nucleophile, aspartate as an electrophile, and histidine as a base . The geometric orientations of the catalytic residues are similar between families, despite different protein folds . The linear arrangements of the catalytic residues commonly reflect clan relationships. For example the catalytic triad in the chymotrypsin clan (PA) is ordered HDS, but is ordered DHS in the subtilisin clan (SB) and SDH in the carboxypeptidase clan (SC) , . Peptidases are grouped into clans and families. Clans are groups of families for which there is evidence of common ancestry. Each clan is identified with two letters, the first representing the catalytic type of the families included in the clan (with the letter 'P' being used for a clan containing families of more than one of the catalytic types serine, threonine and cysteine). Some families cannot yet be assigned to clans, and when a formal assignment is required, such a family is described as belonging to clan A-, C-, M-, S-, T- or U-, according to the catalytic type. Some clans are divided into subclans because there is evidence of a very ancient divergence within the clan, for example MA(E), the gluzincins, and MA(M), the metzincins. Families are grouped by their catalytic type, the first character representing the catalytic type: A, aspartic; C, cysteine; G, glutamic acid; M, metallo; S, serine; T, threonine; and U, unknown. The serine, threonine and cysteine peptidases utilise the amino acid as a nucleophile and form an acyl intermediate - these peptidases can also readily act as transferases. In the case of aspartic, glutamic and metallopeptidases, the nucleophile is an activated water molecule. This signature defines the bacterial and eukaryotic lon proteases, which are ATP-dependent serine peptidases belonging to the MEROPS peptidase family S16 (lon protease family, clan SF). This family of sequences does not include the archaeal lon homologs, IPR004663 from INTERPRO. In the eukaryotes the majority of the proteins are located in the mitochondrial matrix , . In yeast, Pim1, is located in the mitochondrial matrix, is required for mitochondrial function, is constitutively expressed but is increased after thermal stress, suggesting that Pim1 may play a role in the heat shock response .; GO: 0004176 ATP-dependent peptidase activity, 0005524 ATP binding, 0006510 ATP-dependent proteolysis.

Probab=100.00 E-value=0 Score=2345.15 Aligned_cols=759 Identities=51% Similarity=0.850 Sum_probs=739.2 Q ss_pred EEEEECCCEECCCEEEEEECC--CHHHHHHHHHHHHCCCEEE---EEECCCCCCCCC-----CHHHEECCCEEEEEEEEE Q ss_conf 566317825688714306429--4899999999997298499---997368677788-----865602531489999979 Q gi|254780270|r 29 PLLPLRDIVVFPYMIVPLFVG--REKSVRALDEAMNSHKKII---LVTQMNSNDENP-----IASSVYRIGTIVDIVQIL 98 (820) Q Consensus 29 PIlPLrn~VLFPG~vlPL~V~--eprsi~aIe~al~~d~~I~---vV~qkD~~~e~p-----~~edLy~VGTlakI~qi~ 98 (820) T Consensus 1 p~Lp~~~~~lFPg~~~~i~v~~D~~~~~~~i~~~~~~~~~~~G~~~f~~kd~~~~~~~~~i~~~~d~Y~~Gv~a~I~~~~ 80 (941) T TIGR00763 1 PLLPLRRRPLFPGMIKPIVVGSDREKSIKLIKEALRLKQPYLGIVVFLQKDDDNEEPKLVITEEDDIYSVGVVAQILEML 80 (941) T ss_pred CCCCCCCCCCCCCCEEEEEEECCCHHHHHHHHHHHHHCCCHHHHHHEEECCCCCCCCCCCCCCCCCCCCCCCEEEEEEEE T ss_conf 95411782016844189986058789999999998721100102110010056667432014621100676215445420 Q ss_pred ECCC-----CEEEEEEEEEEEEEEEEEEE--------------------------------------------------- Q ss_conf 9889-----80999999754799998870--------------------------------------------------- Q gi|254780270|r 99 RLPD-----GTVKILVEGSVRARIVEYIE--------------------------------------------------- 122 (820) Q Consensus 99 klpD-----G~~~ILVeGl~RvkI~ei~~--------------------------------------------------- 122 (820) T Consensus 81 ~~~~~~~~~~~~~~~v~Gl~R~~i~e~~~~~~e~~~~~~~~~~~~~~~~~~~~~~~~P~~~~~~v~~eL~~~~~~e~~~~ 160 (941) T TIGR00763 81 KLPDEKSGTATYKVVVEGLRRIRIKELVDPDEEVDPEEEEAEDARKPRDKKSASKKSPKLEDAEVESELSAKEPKEEKEE 160 (941) T ss_pred CCCCCCCCCCCEEEEEECCCEEEEEECCCCCCCCCCCCCCCHHHHHHHHHHHCCCCCCCCCCCEECHHHHCCCCCCCCCC T ss_conf 26777656551689986033057743268887888766650113311013341777887244201503311367875568 Q ss_pred -----------CCCEEEEEEEEEC---CCC--CCCHHHHHHHHHHHHHHHHHHHHCC--CCCHHHHHHHHC----CCCHH Q ss_conf -----------7981999999804---888--8847899999999999999998545--577788876412----68867 Q gi|254780270|r 123 -----------REDFLEAITQVLP---DPT--EDPVELEALSRSVIAEFSNYIKLNK--KISPEVIGITSQ----IEGFS 180 (820) Q Consensus 123 -----------~~pyl~A~Ve~l~---d~~--~d~~eleAL~~~L~e~f~eli~l~~--~i~~E~~~~l~~----iddp~ 180 (820) T Consensus 161 ~~~~~~~~~~~~~~~~~v~v~~l~m~~~~~~~~~~~~~~Al~~~~~~~~~~~~~~~~l~~~~~~~~~~~~~S~~v~~~P~ 240 (941) T TIGR00763 161 ESEELPEITLQKEEYLVVRVDNLKMEKDEPFDKDDEEIKALTREIKETFRELISLSKLFREQPALLSALEDSANVIDEPG 240 (941) T ss_pred CCCCCCCHHHHCCCEEEEEEEEEECCCCCCCCHHCCHHHHHHHHHHHHHHHHHHHCCCHHHHHHHHHHHHHCCCCCCCCH T ss_conf 87544300110167558986421001024530002023478999999999998523120003777432544475104622 Q ss_pred HHHHHHHHHCCCC-HHHHHHHHHHHHHH-HHHHHHHHHHHHHH---HHHHHHHHHHHHHHHHHHHHHHHHHCCCCCCCHH Q ss_conf 8999988523589-89999987432479-99999999999865---5666777754333322233211221011110000 Q gi|254780270|r 181 KLADVIAANLSIK-VAERQKILEAVSVK-ERLEMLLVFMESEI---SVLQVEKRIRSRVKRQMEKTQREYYLHEQMKAIQ 255 (820) Q Consensus 181 ~LAD~IAs~L~l~-~eeKQeLLE~~Di~-eRLe~Ll~lL~~Ei---EilkLq~eI~~kVk~kidk~QREyyLREQLKaIq 255 (820) T Consensus 241 ~LaD~~Aa~~~~~e~~e~Q~vLe~~n~~h~RL~k~l~l~~~E~Ghi~~~kl~~~I~~~V~~k~~~~QreYyL~EQLKaIk 320 (941) T TIGR00763 241 RLADLVAASLQLKEIEELQEVLETVNIEHKRLKKALELLKKELGHIELLKLQNKIAKKVEEKMEKTQREYYLREQLKAIK 320 (941) T ss_pred HHHHHHHHHHHHCCHHHHHHHHHHCCCHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH T ss_conf 58889998632036268999987408525789999999886310467899999988999998777667888888999988 Q ss_pred H--HCCCCCCCCHHH-HHHHHHHCCCC--CCHHHHHHHHHHHHHHHHHHHCCHHHHHHHHHHHHHHCCCCCCCCCC--CC Q ss_conf 1--012466550467-89998522247--88578888899999998753110257899999876540415876632--21 Q gi|254780270|r 256 K--ELDNGEEGRDEI-SDFEARISKIR--LSKEAREKALSELQKLRQMNPLSAESSVVRNYLDWLLGVPWDKKSKT--KK 328 (820) Q Consensus 256 k--ELGe~ed~~~Ei-~el~~Ki~~~~--lp~e~~~~~~kEl~rL~~m~~~s~E~~v~r~Yld~~~~lPW~~~t~~--~~ 328 (820) T Consensus 321 kyhELG~~~d~~~~~~~~~~~kle~~~e~~P~~~~k~~~~El~kL~~l~~~SsE~~v~RnYLDwl~~lPW~~~S~~f~n~ 400 (941) T TIGR00763 321 KYHELGIEKDDKDELIEKLKEKLEELKEFLPEEVKKVIEKELTKLELLEPSSSEFTVTRNYLDWLTDLPWGKYSKEFDNL 400 (941) T ss_pred HHHHCCCCCCCHHHHHHHHHHHHHHCCCCCCHHHHHHHHHHHHHHHCCCCCCCCHHHHHHHHHHHHHCCCCCCCCHHHHH T ss_conf 87525899986478999999998740574774689999999987505883353046799999999837722147026652 Q ss_pred HHHHHHHHHHHHHHCHHHHHHHHHHHHHHH-----------HHCCCCCCC-EEEEECCCCCCHHHHHHHHHHHHCCCEEE Q ss_conf 068899877665201168999999999999-----------842444673-59986056565027999999770882499 Q gi|254780270|r 329 NLDFAIRILDQDHFGLEKVKERIIEYLAVQ-----------MRVIKNKGL-ILCFVGPPGVGKTSLAQSIAKATGRQYVR 396 (820) Q Consensus 329 dl~~a~~iLd~~hyGl~~vK~rile~lav~-----------~~~~~~~g~-il~l~gppgvGKts~~~sia~al~r~f~~ 396 (820) T Consensus 401 Dl~~A~~~LD~DHYGL~~VK~RIlEYlAV~qllemrrkkkPkL~~~~~GpqIlClvGPPGVGKTSlg~SIA~ALnRkFvR 480 (941) T TIGR00763 401 DLKRAKEILDEDHYGLKKVKERILEYLAVQQLLEMRRKKKPKLRGKMKGPQILCLVGPPGVGKTSLGKSIAKALNRKFVR 480 (941) T ss_pred HHHHHHHHHCCCCCCCCCCHHHHHHHHHHHHHHHHHHHCCCCCCCCCCCCEEEEEECCCCCCHHHHHHHHHHHHCCEEEE T ss_conf 18999998316788887730341358889899987640364447788887678720726954222789999996880499 Q ss_pred EECCCCCCHHHHCCCCCCCCCCCCHHHHHHHHHCCCCCEEEEEECHHHHH--HHCCCCHHHHHHHHCCCCCCCCEEEEEC Q ss_conf 86188888888356320014567128999998327887399993315542--3117711556655406001681332010 Q gi|254780270|r 397 MSLGGVYDEADIRGHRRTYIGSMPGRIIQSLKRAKRSNPLLLLDEIDKMG--SDLRGDPSAALLEVLDPAQNSSFVDHYL 474 (820) Q Consensus 397 islgg~~d~~~i~gh~~ty~ga~pg~ii~~l~~~~~~npv~~ldeidk~~--~~~~gdp~~allevldp~qn~~f~d~y~ 474 (820) T Consensus 481 ~SlGG~~DeAEIrGHRRTYvGAMPGriiQ~lk~~~t~NPl~LlDEIDK~~~~~~~~GDPaSALLEvLDPEQN~~F~DHYl 560 (941) T TIGR00763 481 FSLGGVRDEAEIRGHRRTYVGAMPGRIIQGLKKAKTKNPLILLDEIDKIGLKSSFRGDPASALLEVLDPEQNNAFSDHYL 560 (941) T ss_pred EEECCCEEHHHCCCCCCCCCCCCHHHHHHHHHHCCCCCCEEEEEEEEEECCCCCCCCCHHHHHHHHCCHHHCCCCCCCCC T ss_conf 95267220311278643203467257899987604158806862022001678865563788864128643604255300 Q ss_pred CCCCCCCCEE--EEEECCCCC-CCHHHCCCEEEEEECCCCHHHHHHHHHHHHHHHHHHHHCCCCCCCCCCHHHHHHHHHC Q ss_conf 3523644279--999348655-4413117247998258786899989998608989986257813132289999999731 Q gi|254780270|r 475 EVEYDLSDVM--FIMTANTLN-IPLPLMDRMEIIRIAGYTEEEKLQIAKNHLVKKVLTEHALKQEECCISDGVLLDIIRL 551 (820) Q Consensus 475 ~~~~dls~v~--fi~tan~~~-i~~~l~drme~i~~~~y~~~ek~~i~~~~l~p~~~~~~~~~~~~~~~~~~~i~~ii~~ 551 (820) T Consensus 561 dvp~DLS~V~CyFi~TAN~~d~IP~PLLDRMEvI~lsGY~~~EK~~IA~~yLiP~~~~~~GL~~~~l~~~d~al~~lI~~ 640 (941) T TIGR00763 561 DVPFDLSKVLCYFIATANSIDTIPRPLLDRMEVIELSGYTEEEKLEIAKKYLIPKALEDHGLKPDELKISDEALLLLIKY 640 (941) T ss_pred CCCCCHHHHHHHEEECCCCCCCCCCCCCCCEEEEECCCCCHHHHHHHHHHCCHHHHHHHHCCCCCCEEECHHHHHHHHHH T ss_conf 23400420021000244757677722137402452388876789999985471367987088813221268999999987 Q ss_pred CCCCCHHHHHHHHHHHHHHHHHHHHHCC------------------C--------------------------------- Q ss_conf 7741023478887999989876542117------------------8--------------------------------- Q gi|254780270|r 552 FTHEAGVRSFERALMKIARKAVTKIVKN------------------S--------------------------------- 580 (820) Q Consensus 552 Yt~EaGvR~l~r~i~~i~r~~~~~~~~~------------------~--------------------------------- 580 (820) T Consensus 641 YtREaGVRNL~r~I~~i~RK~A~~~~~~~~~~~~P~~~~dp~ea~~~e~~~e~~~k~~~e~~~~~~~~~~~~~~~~~~~~ 720 (941) T TIGR00763 641 YTREAGVRNLERQIEKICRKAAVKLVEQVKEEEEPAEAADPKEAEGGEKKKERTKKKTSEKSSDQESEKEKSEIQLKKSE 720 (941) T ss_pred HHHHHCCHHHHHHHHHHHHHHHHHHHHHCCCCCCCCCCCCCHHCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC T ss_conf 51320213389999999999999998714633377634771120466655675546567656433457740001001376 Q ss_pred CCEECCCHHHHHHHHCCCCCCCC-CHHCCCCCCCCCEEEECCCCCEEEEEEEEEECC--------CCCEEECCCHHHHHH Q ss_conf 52012796786753052000332-000223365000000000168079999999748--------997244325689999 Q gi|254780270|r 581 DTTVSINENNLQDYLGVPRYKYG-KIEGEDQVGIVTGLAWTEVGGEILTVEGVIMPG--------KGEITITGNLKEIMK 651 (820) Q Consensus 581 ~~~~~i~~~~l~~~lg~~~~~~~-~~~~~~~~G~v~GLa~t~~GG~~l~IE~~~~~g--------~g~l~lTG~lg~vmk 651 (820) T Consensus 721 ~~~~~i~~~~L~~ylG~p~F~~~E~~~~~~~pGvV~GLAWT~~GG~~L~iEt~~~~gq~Dl~~~kkG~L~lTGqLGDVMK 800 (941) T TIGR00763 721 KESVEITEDNLKKYLGKPVFTSEERAYETTPPGVVMGLAWTPMGGDTLFIETTKVAGQKDLKGDKKGSLELTGQLGDVMK 800 (941) T ss_pred CCEEEECHHHHHHHCCCCCCCCCCCCCCCCCCCEEECCEECCCCCEEEEEEEEEECCCCCCCCCCCCCEEECCCCCHHHH T ss_conf 31378546788865289630645455457898568733223247713104479763740346688986677156525999 Q ss_pred HHHHHHHHHHHHHHHHCCCCH----HHHHHCCCEEECCCCCCCCCCCCHHHHHHHHHHHHHHCCCCCCCCEEEEEEEECC Q ss_conf 999999999999888629985----5742078147448888478887306899999999983688875610663685030 Q gi|254780270|r 652 ESILAASSYVRSKATTFGIIP----SAFNEINIHVHVPEGATPKDGPSAGIAMATAIVSIMTCIPVYKNVAMTGELTLRG 727 (820) Q Consensus 652 ES~~~A~s~~k~~~~~~~~~~----~~~~~~diHih~p~Ga~pKDGPSAGi~i~tal~S~~~~~~v~~~iAmTGEitl~G 727 (820) T Consensus 801 ESA~~Alt~~r~~~~~~~i~~~~~l~ff~~~diH~HvPEGAtPKDGPSAG~tm~TaL~Sl~~~~~Vr~~~AMTGE~TLrG 880 (941) T TIGR00763 801 ESAQIALTYVRSIAEDLGISPPKVLKFFEKADIHLHVPEGATPKDGPSAGITMATALLSLATGKPVRADVAMTGEITLRG 880 (941) T ss_pred HHHHHHHHHHHHHHHHCCCCCCHHHHHHHCCCCEEECCCCCCCCCCHHHHHHHHHHHHHHHCCCCCCCCCCCCCEEEECC T ss_conf 99999999999999861888702342532265202137889898862479999999999970879885535510041023 Q ss_pred EEEEECCHHHHHHHHHHCCCCEEECCHHHH-HHHHHCCHHHHCCCEEEECCCHHHHHHHHH Q ss_conf 250006568999999970996998036775-507761488770979998193999888760 Q gi|254780270|r 728 RVLPIGGLKEKLLAALRAGVTKVLIPEENI-KDLMDIPENVKNGLEIIPVSFMGEVLKHAL 787 (820) Q Consensus 728 ~VlpiGGi~eK~laA~raGi~~viiP~~N~-~d~~~ip~~~~~~l~~~~v~~~~evl~~al 787 (820) T Consensus 881 ~VLpiGGlKEK~iAA~R~Gik~iilP~~N~e~Dl~elP~~v~e~L~~~~V~~~~ev~~~af 941 (941) T TIGR00763 881 KVLPIGGLKEKTIAAKRAGIKTIILPEKNRERDLEELPENVKEGLEIHFVKHYDEVLKKAF 941 (941) T ss_pred CEEEECCHHHHHHHHHHHCEEEEECCCHHHCCCHHHHHHHHHHCCCEEEHHHHHHHHHHHC T ss_conf 5620050468888853505007774612001526620398872784110032789999829

HHsearch alignment for GI: 254780270 and conserved domain: TIGR00763