>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=99.85 E-value=5.1e-18 Score=160.46 Aligned_cols=300 Identities=21% Similarity=0.364 Sum_probs=226.5 Q ss_pred CCHHHHHHH---HHHHHHHHHHC--------CCEEEEECCCCCEEECCCCCCCCEEECCCCHHHHHHHHHHHC------- Q ss_conf 505466688---89999999987--------978999748765010784513100433799999999998628------- Q gi|254780439|r 21 GQACEFDYS---GTQACKALKEE--------GYRIILVNSNPATIMTDPDLADATYTEPITPEVVAKIIEKER------- 82 (1162) Q Consensus 21 Gqa~EfDys---~~qa~~alke~--------Gi~vVlVNsNpaTi~TD~~~aD~vY~ePlt~e~v~~Ii~~E~------- 82 (1162) T Consensus 8 G~S~EhEiSL~Sa~~v~~aL~~~~~FIF~deg~~v~~~~~~~~g---~w~~~~~~-~~~L~~~~~~~~~~~~~~~~~~~~ 83 (375) T TIGR01205 8 GKSAEHEISLVSAQAVLKALRSLLEFIFLDEGYDVYPVDIDKQG---SWVFSDAK-TEALVYKDLLQKLLEQGGPINLSS 83 (375) T ss_pred CCCCHHHHHHHHHHHHHHHHHHCCCEEEEECCEEEEEEEECCCC---CEECCCCC-CCCCCCCCHHHHHHHCCCCEECCC T ss_conf 87650567589999999986520876653166489998622677---33003456-555211100467763589740146 Q ss_pred -----------------------CCEEEECCCCC-HHHHHHHHHHHCCCHHHHCCEEECCCHHHHHHHCCHHHHHHHHHH Q ss_conf -----------------------98899758870-268888998875962882875714998999860588999999998 Q gi|254780439|r 83 -----------------------PDAILPTTGGQ-TALNTALSLKRMGVLDRYGVEMIGAKPETIDKAEDRSLFSKAMQN 138 (1162) Q Consensus 83 -----------------------pDaIlp~~GGq-talnl~~~L~e~gil~~~~v~~lG~~~~~I~~~edR~~F~~~l~~ 138 (1162) T Consensus 84 ~~~~~~~~~~~~~~~~~~~~~~~~D~vF~~LHG~~~GEDGtiQ----GlLe~~gIPY~Gsgv~aSA~smDK~~tK~~~~~ 159 (375) T TIGR01205 84 LAQVSLLGESFLLEAESAEALEEIDVVFPVLHGPPYGEDGTIQ----GLLELLGIPYTGSGVLASALSMDKLLTKLLLKS 159 (375) T ss_pred CCCCCCCCCCCCCCCCCCHHHCCCCEEEEEECCCCCCCCCCHH----HHHHHHCCCCCCCCHHHHHHHHHHHHHHHHHHH T ss_conf 6741003556666644530204798899812185668555289----999970787037478999987428999999987 Q ss_pred CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCHHHH-HHHHHHCCC Q ss_conf 7898886200023443333323333333444444443333222111111233444444455444899999-999987199 Q gi|254780439|r 139 IPLATPKSILANATDIKEHDRKLHEEERENLKKTLSKEELDAALYALELKWNLEENDRKHRYICHAMAVA-VQALDEIGL 217 (1162) Q Consensus 139 ~gip~~~s~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~s~~ea-~~~a~~iGy 217 (1162) T Consensus 160 ~Glp~~~y~~l~~~~---------------------------------------------~~~~~~~~~~~~~~~~~lg~ 194 (375) T TIGR01205 160 LGLPTPDYAVLRRKE---------------------------------------------RSSEDEAECENVAVLEKLGF 194 (375) T ss_pred CCCCCCCCEEEEECC---------------------------------------------CCCCHHHHHHHHHHHHHCCC T ss_conf 579744704675045---------------------------------------------44561346899999983689 Q ss_pred CEEEEECCCCCCCCCCCCCCHHHHHHHHHHHHHHCCCCCEEEEEE---CCCCEEEEEEEEEECCCCEEEEEE-CCCCCCC Q ss_conf 699941326786645111699999999998998579982798664---499789999999728998899963-0000001 Q gi|254780439|r 218 PLIIRPSFTLGGTGGGIAYNRSEFLEIVENGLHASPTTEVLIEES---VLGWKEYELEMMRDIKGNCIVVCS-IENLDPM 293 (1162) Q Consensus 218 PvivRps~~lGG~G~~iv~n~eeL~~~~~~al~~s~~~~vlIeks---l~g~kEiE~eVirD~~gn~i~v~~-~En~dp~ 293 (1162) T Consensus 195 P~~VKPa~~GSSvG~~~V~~~~eL~~a~~~Af~~d--~~v~vE~~~~~i~g-rEl~v~~L~~~~--~lp~~~~~~~~~~~ 269 (375) T TIGR01205 195 PVFVKPAREGSSVGISKVKSEEELEAALDEAFKYD--ERVIVEEFKQRIKG-RELEVSILGNEE--ALPIISIVPEIEPD 269 (375) T ss_pred CEEEEECCCCCEEEEEEECCHHHHHHHHHHHHCCC--CEEEEEECCCCCCC-CEEEEEEEECCC--CCEEEECCCCCCCC T ss_conf 78997346777577898467789999999861559--65999811147898-526898870797--43245406753567 Q ss_pred CC----------CCCE-EEEECCCC-CCCHHHHHHHHHHHHHHHHHHCCCCCCCEEEEEEECCCCEEEEEEECCC--CCH Q ss_conf 00----------0010-13433732-2898899999999999998718345764689999558984999850444--310 Q gi|254780439|r 294 GV----------HTGD-SITVAPAL-TLTDKEYQLMRNAAIAVLKEIGVESGGANVQFAVNPKNGKMVVIEMNPR--VSR 359 (1162) Q Consensus 294 Gi----------HtGD-Si~vaP~q-TL~d~~~q~LR~~a~kI~r~lgi~vG~~nVQFAv~p~~~~~yvIEvNpR--~sR 359 (1162) T Consensus 270 g~~~FYDY~~KY~~~~g~~~~~pa~~~L~~~~~~~i~~~a~~ay~~~~~~-G~~R~DFf~~~~~G~~yLnEiNT~PGmT~ 348 (375) T TIGR01205 270 GGSDFYDYEAKYLDGDGTEYVIPAPAGLDEELEEKIKELALKAYKALGCR-GLARVDFFLDKETGEIYLNEINTIPGMTA 348 (375) T ss_pred CCCEECCHHHCCCCCCCCEEEECCCCCCCHHHHHHHHHHHHHHHHHCCCC-CEEEEEEEEECCCCEEEEEEECCCCCCCC T ss_conf 67600002114277887326515656788899999999999999840887-44899899872888699998768888720 Q ss_pred HH--HHHHHHHCCCHHHHHHHH Q ss_conf 35--788876346147677764 Q gi|254780439|r 360 SS--ALASKATGFPIAKIAAKL 379 (1162) Q Consensus 360 ss--alaskatgypia~vaakl 379 (1162) T Consensus 349 ~Sl~P~~~~~~G~~f~~Lv~~~ 370 (375) T TIGR01205 349 ISLFPKAAAAAGLEFEQLVERI 370 (375) T ss_pred HHHHHHHHHHCCCCHHHHHHHH T ss_conf 1269999997188878999999

HHsearch alignment for GI: 254780439 and conserved domain: TIGR01205