>cd06820 PLPDE_III_LS_D-TA_like Type III Pyridoxal 5-phosphate (PLP)-Dependent Enzymes, Low Specificity D-Threonine Aldolase-like. This subfamily is composed of uncharacterized bacterial proteins with similarity to low specificity D-threonine aldolase (D-TA), which is a fold type III PLP-dependent enzyme that catalyzes the interconversion between D-threonine/D-allo-threonine and glycine plus acetaldehyde. Both PLP and divalent cations (eg. Mn2+) are required for catalytic activity. Low specificity D-TAs show similarity to bacterial alanine racemase (AR), which contains an N-terminal PLP-binding TIM-barrel domain and a C-terminal beta-sandwich domain. AR exists 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. Based on its similarity to AR, it is possible that low specificity D-TAs also form dimers in solution. Experimental data show that the monomeric form of low specificity D-TAs exh

Probab=99.89 E-value=1.2e-19 Score=153.72 Aligned_cols=321 Identities=17% Similarity=0.182 Sum_probs=210.8 Q ss_pred CCCCEEEEEHHHHHHHHHHHHHHCCCCCCEEEEEEECCCCHHHHHHHHHCCC-CEEEECHHHHHHHHHCCCCCCCEEECC Q ss_conf 4997899779999999999998614479789996410799999999997399-289868999865221257843124447 Q gi|254780371|r 25 VQTPFYCYSTTAIEKNYLTFSNAFDGMDTMVCYALKANSNQAVIKTLAHLGS-GLDIVSEGELRRALAAPVPAERIVFSG 103 (431) Q Consensus 25 ~gTP~yV~d~~~i~~n~~~l~~a~~~~~~~i~yAvKaN~~~~il~~l~~~G~-g~dv~S~~El~~al~~G~~~~~Ii~~g 103 (431) T Consensus 1 l~TP~l~vd~~~l~~Ni~~m~~~~~~~gv~lrPH~KThk~~e~~~~ql~~Ga~g~~vatl~EAe~l~~~G~~--dilla~ 78 (353) T cd06820 1 LDTPALLIDLDRLERNIARMQAYADAHGLSLRPHIKTHKSPEIARLQLAAGAIGITVATVGEAEVMADAGLS--DIFIAY 78 (353) T ss_pred CCCCEEEEEHHHHHHHHHHHHHHHHHCCCCEEEEEHHHCCHHHHHHHHHCCCCEEEEEEHHHHHHHHHCCCC--CEEEEC T ss_conf 999779972999999999999989876994778851314799999998679974999729999999976997--668843 Q ss_pred CCCCCHHHHHHH----HCCCCCCCCCCCHHHHHHHHHHCCCCCCEEEEEEEECCCCCCCCCCCCCCCCCCCCCC-CCCCC Q ss_conf 754201244442----0687233332202467687741133442158998723778674433322334445688-71111 Q gi|254780371|r 104 VGKTIDEIDLAL----QSGIYCFNVESESELKTLNQRAVSLGKKAPIAFRVNPDINANTHKKISTGKKEDKFGI-PIHQI 178 (431) Q Consensus 104 ~~k~~~~l~~ai----~~gv~~i~vDs~~el~~l~~~a~~~~~~~~I~lRinp~~~~~~~~~~~tg~~~sKFGi-~~~~~ 178 (431) T Consensus 79 p~v~~~~~~~l~~l~~~~~i-~~~vD~~~~~~~l~~~~~~~~~~~~V~ieid~G------------~--~R~Gv~~~~~~ 143 (353) T cd06820 79 PIVGRQKLERLRALAERVTL-SVGVDSAEVARGLAEVAEGAGRPLEVLVEVDSG------------M--NRCGVQTPEDA 143 (353) T ss_pred CCCCHHHHHHHHHHHHCCCE-EEEECCHHHHHHHHHHHHHCCCCEEEEEEECCC------------C--CCCCCCCHHHH T ss_conf 66898999999974304988-999657999999999997679942899996888------------8--86888986999 Q ss_pred HHHHHHHHHCCCCCHHHHHHHHHHCCCCC----HHHHHHHHHHHHHHHHHHCCCCCCCEEEECCCCCCCCCCCCCCCCHH Q ss_conf 34577764156322002335564156442----04899999999887653102666526880687300026654553114 Q gi|254780371|r 179 HSLYAYASTLPGVKISGVDMHIGSQIDQI----ESFHKAFKLLRDLTQQLRSNGHNIQHIDVGGGLGIAYHSDHRPPSSS 254 (431) Q Consensus 179 ~~~~~~~~~~~~l~l~GlH~H~GS~~~~~----~~~~~~~~~~~~~~~~l~~~g~~~~~ldiGGGf~i~y~~~~~~~~~~ 254 (431) T Consensus 144 ~~l~~~i~~~~~l~l~Gv~~y~Gh-~~~~~~~~~~~~~~~~~~~~~~~~l~~~g~~~~~vs~GgT~t~~~--~~~~~~~t 220 (353) T cd06820 144 VALARAIASAPGLRFRGIFTYPGH-SYAPGALEEAAADEAEALLAAAGILEEAGLEPPVVSGGSTPTLWR--SHEVPGIT 220 (353) T ss_pred HHHHHHHHHCCCCEEEEEEECCCC-CCCCHHHHHHHHHHHHHHHHHHHHHHHCCCCCCEEEECCCCCEEE--HHCCCCCC T ss_conf 999999985899768899954876-678346999999999999999999884699988898569975460--00167651 Q ss_pred HHHHHHHHHHCCCCCEEEEEECCEECC--------------CCCEEEEEEEEECCCCCCCCEEECCCCCCCCCCHHHCCC Q ss_conf 565556542102453034410111203--------------663258887640346897422005530001100111024 Q gi|254780371|r 255 DYASLIHQYFGNLQCKIILEPGRFLVA--------------DVGILVTKVISIKKSADKTFVILDVAMNDFMRPTLYDAY 320 (431) Q Consensus 255 ~~~~~i~~~~~~~~~~l~~EPGR~lva--------------~ag~ll~~V~~vK~~~~~~~~~vD~g~~~~~~p~~~~~~ 320 (431) T Consensus 221 -----------------El~~G~yvf~D~~~~~~~~~~~~~~Al~vl~~ViS~p---~~~~~~vd~G~k~ls~d~--~~~ 278 (353) T cd06820 221 -----------------EIRPGTYIFNDASQVALGACTLDDCALTVLATVVSRP---TAERAVLDAGSKALTSDR--GTG 278 (353) T ss_pred -----------------EECCCEEEECCHHHHCCCCCCHHHCEEEEEEEEEEEC---CCCCEEEECCCHHHCCCC--CCC T ss_conf -----------------6614317951567740476883123257888899406---998089905644432567--889 Q ss_pred CCCCCCCCCCCCCCEEEEEEEEEECCCCCEEEEEEECCCCCCCCEEEEECCCCHHHHHHCCCCCCCCCEEEEEECCEEEE Q ss_conf 65322223467776158999810005666656210056688888999967970233340277889866599998896899 Q gi|254780371|r 321 HEINYIVNPAGDRLHIHADIVGPICETGDFIALNRKIALPRPGDLLYIEKTGAYGAVQSGTYNSRLLIPEIMVNGSQFHI 400 (431) Q Consensus 321 ~~i~~~~~~~~~~~~~~~~i~G~~C~~~D~l~~~~~lp~l~~GD~l~i~~~GAY~~s~~s~fn~~p~p~~v~v~~g~~~~ 400 (431) T Consensus 279 ~~g~g~~~--~~-~~--~~~~~-~s~EHg~l~~~~~~~~l~vGd~v~~~P~H~-c~----t~~~~~--~~~vv~~~~vvd 345 (353) T cd06820 279 TTGYGHLL--EY-PD--ARIVG-LSEEHGVIDLSGCDALPRVGDRVRVVPNHA-CV----VVNLVD--EVYLVDGGEVVE 345 (353) T ss_pred CCCCCCCC--CC-CC--CEEEE-ECCCCEEEECCCCCCCCCCCCEEEEEECCC-CH----HHHHCC--EEEEEECCEEEE T ss_conf 76775213--89-98--77940-007740887888778999999999993882-17----688479--899999999999

HHsearch alignment for GI: 254780371 and conserved domain: cd06820