>cd06826 PLPDE_III_AR2 Type III Pyridoxal 5-phosphate (PLP)-Dependent Enzyme, Alanine Racemase 2. This subfamily is composed of bacterial alanine racemases (EC 5.1.1.1) with similarity to Yersinia pestis and Vibrio cholerae alanine racemase (AR) 2. ARs catalyze the interconversion between L- and D-alanine, an essential component of the peptidoglycan layer of bacterial cell walls. These proteins are similar to other bacterial ARs and are fold type III PLP-dependent enzymes containing contains an N-terminal PLP-binding TIM-barrel domain and a C-terminal beta-sandwich domain. They exist as homodimers with active sites that lie at the interface between the TIM barrel domain of one subunit and the beta-sandwich domain of the other subunit. Homodimer formation and the presence of the PLP cofactor are required for catalytic activity.

Probab=99.62 E-value=2.2e-12 Score=104.20 Aligned_cols=295 Identities=19% Similarity=0.226 Sum_probs=178.6 Q ss_pred EEEHHHHHHHHHHHHHHCCCCCCEEEEEEECCC----CHHHHHHHHHCCC-CEEEECHHHHHHHHHCCCCCCCEEECCCC Q ss_conf 977999999999999861447978999641079----9999999997399-28986899986522125784312444775 Q gi|254780371|r 31 CYSTTAIEKNYLTFSNAFDGMDTMVCYALKANS----NQAVIKTLAHLGS-GLDIVSEGELRRALAAPVPAERIVFSGVG 105 (431) Q Consensus 31 V~d~~~i~~n~~~l~~a~~~~~~~i~yAvKaN~----~~~il~~l~~~G~-g~dv~S~~El~~al~~G~~~~~Ii~~g~~ 105 (431) T Consensus 5 eIdl~al~~N~~~ir~~~~-~~~ki~aVVKAnAYGhG~~~va~~l~~~gv~~faVa~~~EA~~LR~~g~~~~Il~l~~-- 81 (365) T cd06826 5 EISTGAFENNIKLLKKLLG-GNTKLCAVMKADAYGHGIALVMPSIIAQNIPCVGITSNEEARVVREAGFTGKILRVRT-- 81 (365) T ss_pred EEEHHHHHHHHHHHHHHCC-CCCEEEEEEEECCCCCCHHHHHHHHHHCCCCEEEECCHHHHHHHHHCCCCCCEEEECC-- T ss_conf 9809999999999996389-9997999995620228789999999987999999687999999996599998799868-- Q ss_pred CCCHHHHHHHHCCCCCCCCCCCHHHHHHHHHHCCCCCCEEEEEEEECCCCCCCCCCCCC-CCCCCCCCCCCCCCHHHHH- Q ss_conf 42012444420687233332202467687741133442158998723778674433322-3344456887111134577- Q gi|254780371|r 106 KTIDEIDLALQSGIYCFNVESESELKTLNQRAVSLGKKAPIAFRVNPDINANTHKKIST-GKKEDKFGIPIHQIHSLYA- 183 (431) Q Consensus 106 k~~~~l~~ai~~gv~~i~vDs~~el~~l~~~a~~~~~~~~I~lRinp~~~~~~~~~~~t-g~~~sKFGi~~~~~~~~~~- 183 (431) T Consensus 82 ~~~~e~~~~~~~~l-~~~i~s~~~~~~l~~~~~~~~~~~~vhlkiD------------T~GM--~RlG~~~~~~~~~~~~ 146 (365) T cd06826 82 ATPSEIEDALAYNI-EELIGSLDQAEQIDSLAKRHGKTLPVHLALN------------SGGM--SRNGLELSTAQGKEDA 146 (365) T ss_pred CCHHHHHHHHHCCC-CCEECCHHHHHHHHHHHHHCCCCCEEEEEEC------------CCCC--CCCCCCCCHHHHHHHH T ss_conf 89799999997068-6099819999999999987099833899972------------6997--7578673407899999 Q ss_pred -HHHHCCCCCHHHHHHHHHHCCCCCHHHHHHHHHHHHHHHHH-HCCCCCCC--EE---EECCCCCCC-CCCCCCCCCHHH Q ss_conf -76415632200233556415644204899999999887653-10266652--68---806873000-266545531145 Q gi|254780371|r 184 -YASTLPGVKISGVDMHIGSQIDQIESFHKAFKLLRDLTQQL-RSNGHNIQ--HI---DVGGGLGIA-YHSDHRPPSSSD 255 (431) Q Consensus 184 -~~~~~~~l~l~GlH~H~GS~~~~~~~~~~~~~~~~~~~~~l-~~~g~~~~--~l---diGGGf~i~-y~~~~~~~~~~~ 255 (431) T Consensus 147 ~~~~~~~~l~i~Gi~SH~a~a--d~~~~~~~~~~f~~~~~~l~~~~~~~~~~~~~H~anS~~~l~~~~~~~d~vR~Gi~l 224 (365) T cd06826 147 VAIATLPNLKIVGIMTHFPVE--DEDDVRAKLARFNEDTAWLISNAKLKREKITLHAANSFATLNVPEAHLDMVRPGGIL 224 (365) T ss_pred HHHHHCCCCCEEEEEEECCCC--CCCCCHHHHHHHHHHHHHHHHHHCCCCCCCEEEECCCHHHHCCCCCCCCCCCCCEEE T ss_conf 999738998579998334788--987409999999999999998626777756188614367655941147845578463 Q ss_pred HHHHHHHHHCCCCCEEEEEECCEECCCCCEEEEEEEEECCCC---------------CCCCEEECCCCCCCCCCHHHCCC Q ss_conf 655565421024530344101112036632588876403468---------------97422005530001100111024 Q gi|254780371|r 256 YASLIHQYFGNLQCKIILEPGRFLVADVGILVTKVISIKKSA---------------DKTFVILDVAMNDFMRPTLYDAY 320 (431) Q Consensus 256 ~~~~i~~~~~~~~~~l~~EPGR~lva~ag~ll~~V~~vK~~~---------------~~~~~~vD~g~~~~~~p~~~~~~ 320 (431) T Consensus 225 YG~~--------p~----~~---~lkpv~sl~s~I~~ir~l~~Ge~VGYg~~~~a~~~~~ia~v~iGYaDG~~r~~sn~- 288 (365) T cd06826 225 YGDT--------PP----SP---EYKRIMSFKSRVASLNTYPKGSTVGYDRTFTLTRDSLLANIPVGYSDGYRRSFSNK- 288 (365) T ss_pred ECCC--------CC----CC---CCCCEEEEEEEEEEEEECCCCCCCCCCCEEECCCCEEEEEECCCCCCCCCCCCCCC- T ss_conf 7869--------77----77---77834999999966478389997666862543898289997043325755002799- Q ss_pred CCCCCCCCCCCCCCEEEEEEEEEECCCCCEEEEEE-ECCCCCCCCEEEEECC Q ss_conf 65322223467776158999810005666656210-0566888889999679 Q gi|254780371|r 321 HEINYIVNPAGDRLHIHADIVGPICETGDFIALNR-KIALPRPGDLLYIEKT 371 (431) Q Consensus 321 ~~i~~~~~~~~~~~~~~~~i~G~~C~~~D~l~~~~-~lp~l~~GD~l~i~~~ 371 (431) T Consensus 289 --~~V~i------~G~~~pivGrV~M--D~~~vDvt~~~~v~~Gd~v~l~G~ 330 (365) T cd06826 289 --AHVLI------NGQRVPVVGKVSM--NTVMVDVTDIPGVKAGDEVVLFGK 330 (365) T ss_pred --CEEEE------CCEEEEEECEEEC--CEEEEECCCCCCCCCCCEEEEECC T ss_conf --68999------9999357177722--268995678878999999999747

HHsearch alignment for GI: 254780371 and conserved domain: cd06826