>TIGR01205 D_ala_D_alaTIGR D-alanine--D-alanine ligase; InterPro: IPR005905 D-alanine--D-alanine ligase (6.3.2.4 from EC) is a bacterial enzyme involved in cell-wall biosynthesis. It participates in forming UDP-N-acetylmuramoyl pentapeptide, the peptidoglycan precursor. These enzymes are proteins of 300 to 360 amino acids containing many conserved regions. The N-terminal Gly-rich region could be involved in ATP-binding. This family of enzymes represent chromosomal versions of species not specifically resistant to glycopeptide antibiotics such as vancomycin. The mechanism of glycopeptide antibiotic resistance involves the production of D-alanine-D-lactate (VanA and VanB families) or D-alanine-D-serine (VanC). This model attempts to exclude the VanA/VanB and VanC subfamilies while capturing most other D-Ala-D-Ala ligases above the trusted cut-off. However, changes in small numbers of amino acids, as demonstrated crystallographically, can alter specificity. In chlamydial species, this enzyme is found as a fusion protein with UDP-N-acetylmuramate--alanine ligase. ; GO: 0008716 D-alanine-D-alanine ligase activity, 0009252 peptidoglycan biosynthetic process, 0005737 cytoplasm.

Probab=99.40 E-value=3.6e-11 Score=93.60 Aligned_cols=285 Identities=17% Similarity=0.262 Sum_probs=174.0 Q ss_pred CCCCCHHHHHHHHHHC--------CCEEEEEEHHHEE--EE-CCEEEEE---EEEEEEECCCC----CE----------E Q ss_conf 4764679999999988--------9889999541248--99-9899999---99999807774----12----------6 Q gi|254780696|r 19 VKEDSTFAIALEAQVR--------GYQIFHYTPDQLY--MR-DSKIYAN---TQPLSLDEKKE----QY----------Y 70 (316) Q Consensus 19 ~~~DTT~~Lm~eAq~R--------GheV~~~~~~dL~--~~-~g~v~A~---~~~i~i~~~~~----~~----------f 70 (316) T Consensus 15 iSL~Sa~~v~~aL~~~~~FIF~deg~~v~~~~~~~~g~w~~~~~~~~~L~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 94 (375) T TIGR01205 15 ISLVSAQAVLKALRSLLEFIFLDEGYDVYPVDIDKQGSWVFSDAKTEALVYKDLLQKLLEQGGPINLSSLAQVSLLGESF 94 (375) T ss_pred HHHHHHHHHHHHHHHCCCEEEEECCEEEEEEEECCCCCEECCCCCCCCCCCCCHHHHHHHCCCCEECCCCCCCCCCCCCC T ss_conf 75899999999865208766531664899986226773300345655521110046776358974014667410035566 Q ss_pred EECCCCCCCHHHCCEEEEECCCC-CCHHH-HHHHHHHHHHCCCC-EEECCHHHHHHCCCHHHHHH-HHH---HCCCCEEE Q ss_conf 50464435210063668832886-22479-99999998623585-04117488752565034334-543---04431000 Q gi|254780696|r 71 SLGEEKIIDLSQMDVILIRQDPP-FNMHY-ITSTYLLEKINPET-LIVNNPFWIRNSPEKIFVTE-FSE---LMPPTLIS 143 (316) Q Consensus 71 ~~~~~~~~~L~~fD~i~iR~dPp-~d~~y-i~~~~~Le~~~~~~-~viN~p~~i~~~~eKl~~~~-~~~---~~P~T~vt 143 (316) T Consensus 95 ~~~~~~~~~~~~~D~vF~~LHG~~~GEDGtiQG--lLe~~--gIPY~Gsgv~aSA~smDK~~tK~~~~~~Glp~~~y~~l 170 (375) T TIGR01205 95 LLEAESAEALEEIDVVFPVLHGPPYGEDGTIQG--LLELL--GIPYTGSGVLASALSMDKLLTKLLLKSLGLPTPDYAVL 170 (375) T ss_pred CCCCCCCHHHCCCCEEEEEECCCCCCCCCCHHH--HHHHH--CCCCCCCCHHHHHHHHHHHHHHHHHHHCCCCCCCCEEE T ss_conf 666445302047988998121856685552899--99970--78703747899998742899999998757974470467 Q ss_pred --CCHH-----HHHH--HHHHHH-HHHHHCCCCCCCCCEEEECCCCCCHHHHHHHHHHHCCCCCCEEECCCCCCCCCEEE Q ss_conf --3724-----5568--888521-43311168854344687448871158899999840013340021053445682699 Q gi|254780696|r 144 --RDIT-----QITR--FYLEMK-DIIIKPLYGNGGTGVFRITLGDRNFSSLIEMLFEKYPEPLMIQSYLPQIRDGDKRI 213 (316) Q Consensus 144 --~~~~-----~~~~--f~~~~~-~vViKPl~g~~G~gV~~i~~~~~~~~~~~e~~~~~~~~~ii~Qefi~~~~~gD~Rv 213 (316) T Consensus 171 ~~~~~~~~~~~~~~~~~~~~~lg~P~~VKPa~~GSSvG~~~V~-~~~eL~~a~~~Af~-~d~~v~vE~~~~~i~grEl~v 248 (375) T TIGR01205 171 RRKERSSEDEAECENVAVLEKLGFPVFVKPAREGSSVGISKVK-SEEELEAALDEAFK-YDERVIVEEFKQRIKGRELEV 248 (375) T ss_pred EECCCCCCHHHHHHHHHHHHHCCCCEEEEECCCCCEEEEEEEC-CHHHHHHHHHHHHC-CCCEEEEEECCCCCCCCEEEE T ss_conf 5045445613468999999836897899734677757789846-77899999998615-596599981114789852689 Q ss_pred EEEC-CEEEEEEEEECCCC-----CC---CCCCCCCC-C--EEEEE--CCHHH----HHHHHHHHHHHHHCCCEEEEEEE Q ss_conf 9989-98863212204568-----60---00000147-3--11100--77899----99999999999984987999951 Q gi|254780696|r 214 LLLN-GKPVGAVNRIPSEV-----DN---RSNIHAGG-K--AELTK--LTKID----LDICKRIGESLRERGLFFTGIDV 275 (316) Q Consensus 214 ~vi~-g~~v~a~~R~~~~~-----~~---r~Nl~~Gg-~--~~~~~--lt~~~----~~i~~~~~~~L~~~gl~~~GiDi 275 (316) T Consensus 249 ~~L~~~~~lp~~~~~~~~~~~g~~~FYDY~~KY~~~~g~~~~~pa~~~L~~~~~~~i~~~a~~ay~~~~~~G--~~R~DF 326 (375) T TIGR01205 249 SILGNEEALPIISIVPEIEPDGGSDFYDYEAKYLDGDGTEYVIPAPAGLDEELEEKIKELALKAYKALGCRG--LARVDF 326 (375) T ss_pred EEEECCCCCEEEECCCCCCCCCCCEECCHHHCCCCCCCCEEEECCCCCCCHHHHHHHHHHHHHHHHHCCCCC--EEEEEE T ss_conf 887079743245406753567676000021142778873265156567888999999999999998408874--489989 Q ss_pred E-----CC-EEEEEECCCCH-----HHHHHHHHCCCCHHHHHHHHHHH Q ss_conf 1-----78-78898368830-----37889975199989999999988 Q gi|254780696|r 276 I-----GD-YITEINVTSPT-----CIREIHRNGGENVASLFWDGIEK 312 (316) Q Consensus 276 i-----g~-~i~EvNvtsP~-----g~~~~~~~~~~~i~~~i~d~ie~ 312 (316) T Consensus 327 f~~~~~G~~yLnEiN-T~PGmT~~Sl~P~~~~~~G~~f~~Lv~~~~~~ 373 (375) T TIGR01205 327 FLDKETGEIYLNEIN-TIPGMTAISLFPKAAAAAGLEFEQLVERILEL 373 (375) T ss_pred EEECCCCEEEEEEEC-CCCCCCCHHHHHHHHHHCCCCHHHHHHHHHHH T ss_conf 987288869999876-88887201269999997188878999999985

HHsearch alignment for GI: 254780696 and conserved domain: TIGR01205