>cd06818 PLPDE_III_cryptic_DSD Type III Pyridoxal 5-phosphate (PLP)-Dependent Enzyme Bacterial Cryptic D-Serine Dehydratase. This subfamily is composed of Burkholderia cepacia cryptic D-serine dehydratase (cryptic DSD), which is also called D-serine deaminase, and similar bacterial proteins. Members of this subfamily are fold type III PLP-dependent enzymes with 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 dimers 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 similarity, it is possible cryptic DSDs may also form dimers. Cryptic DSDs are distinct from the ubiquitous bacterial DSDs coded by the dsdA gene, mammalian L-serine dehydratases (LSD) and mammalian serine racemase (SerRac), which are fold type II PLP-dependent enzymes. At present, the enzymatic and biochemical properties

Probab=99.74 E-value=2.5e-14 Score=114.06 Aligned_cols=318 Identities=16% Similarity=0.072 Sum_probs=184.9 Q ss_pred CCCCEEEEEHHHHHHHHHHHHHHHHHCCCEEEEEEECCCCHHHHHHHHHHCC-EEEEECHHHHHH-HHCCCCCCCEEECC Q ss_conf 8885689779999999999999853369869995410599999999985187-489807999989-87368801088537 Q gi|254780741|r 2 IKTPYYLIDKQKLLNNLDTALYIRKNAGVKLLLALKCFAAWGMFDTLNQYMD-GTTSSSLYEVML-GHEKFGGETHAYNV 79 (367) Q Consensus 2 i~TP~yv~d~~~i~~n~~~~~~~~~~~~~~i~yA~KaN~~~~il~~l~~~g~-g~dv~S~~E~~l-a~~g~~~~~i~~~~ 79 (367) T Consensus 1 ~~TPaLvvD~~~le~Ni~~M~~~~~~~gv~lRPH~KTHKs~eia~~Q~~~Ga~git~at~~EAe~~~~~G~~-dilia~~ 79 (382) T cd06818 1 VSLPLLVLDASALAHNLAWMQAFAAAHGVKLAPHGKTTMAPQLFRRQLEAGAWGITVATVAQARVALAFGVR-RVLLANQ 79 (382) T ss_pred CCCCEEEECHHHHHHHHHHHHHHHHHCCCCEEEECCCCCCHHHHHHHHHCCCCEEEECCHHHHHHHHHCCCC-CEEEECC T ss_conf 999779970999999999999999866983520401004799999999689983896779999999976986-4799426 Q ss_pred CCCH---HHHHHHHCC--CCE--EEECCCHHHHHHHHHHHCCCCCCEEEEEECCCCCCCCCCCCCCCCCCCCCC-HHH-- Q ss_conf 7780---347886138--868--985672059999998612345614899635774431012455786435742-788-- Q gi|254780741|r 80 AYKD---CEIDAVLSN--CDT--IIFNTVSQLNKFKDKAQKLHKKIGLRINPSVSYSKFILADPNRPFSRLGEK-CKD-- 149 (367) Q Consensus 80 ~~~~---~el~~a~~~--~~~--i~iDs~~El~~i~~~a~~~~~~I~lRinP~~~~~~~~~~~~~~~~skfG~~-~~~-- 149 (367) T Consensus 80 iv~~~~~~rl~~l~~~~~~~~i~~~vD~~~~~~~l~~~~~~~~~~~~V~ievd~G------------~~R~Gv~~~~~a~ 147 (382) T cd06818 80 LVGKANLRRLAALLAADPDFEFFCLVDSVDNVRALAAFFAALERPLNVLIELGVP------------GGRTGVRTEAEAL 147 (382) T ss_pred CCCHHHHHHHHHHHHCCCCCEEEEEECCHHHHHHHHHHHHHCCCCEEEEEEECCC------------CCCCCCCCHHHHH T ss_conf 5798899999999850899789999629999999999998559945899997889------------8878999869999 Q ss_pred -H----HHHHHCCCEEEEECCCCC--CCCHHH---HHHHHHHHHHHH---HHCCC-CCE-EEEECCCCCCCCCCCCCHHH Q ss_conf -8----874314960665305656--661478---999999999898---65088-750-87533776664455680789 Q gi|254780741|r 150 -K----IESEIKNVNGLMFHNNCE--NKSFLC---FSAMLKNIEKEF---GHFIT-QIE-WISLGGGIHFTDKDYPVKDF 214 (367) Q Consensus 150 -~----~~~~~~~i~Gih~H~gs~--~~~~~~---~~~~l~~~~~~~---~~~~~-~l~-~idiGGG~~~~~~~~~~~~~ 214 (367) T Consensus 148 ~l~~~i~~~~~L~~~Gl~~y~G~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ivs~GgT~------~f~~~ 221 (382) T cd06818 148 ALADAIAASPALRLAGVEGYEGVAAHDDSEETLAAVRAFLARAVDLARRLAERGLFPDRELILTAGGSA------WFDLV 221 (382) T ss_pred HHHHHHHHCCCCEEEEEEEECCCCCCCCCHHHHHHHHHHHHHHHHHHHHHHHCCCCCCCCEEEEEECCC------CHHHH T ss_conf 999999729996594688546756678866899999999999999999999706788897089982895------54333 Q ss_pred HHHHHHHHHHCCCEEEEEHHHHCCCC-------------------------CEEEEEEEEEEECCCCCCCCCCCCCCCCC Q ss_conf 99999875421650453002201457-------------------------41888788786304433343333565656 Q gi|254780741|r 215 CQRLKEFSEKYSVQIYLEPGEAIVTN-------------------------TTTLNTTVLDISENIKNLVIVDSSVEAHV 269 (367) Q Consensus 215 ~~~i~~~~~~~~~~l~iEPGR~lv~~-------------------------ag~lv~~V~~~K~~~~~~v~vd~g~~~~~ 269 (367) T Consensus 222 ~~~~~~~~~~~~~~~elrpG~Yvf~D~g~Y~~~~~~~~~~~~~~~~~~f~~Al~VlttViS~--p~~~~ailDaG~K~ls 299 (382) T cd06818 222 AEALAALALDGPVTLVLRSGCYVTHDHGIYRRAQQALRARDPLSLAGALRPALEIWAYVQSR--PEPGLAILGMGKRDVA 299 (382) T ss_pred HHHHCCCCCCCCCEEEECCEEEEECCCHHHHHHHHHHHCCCCCCCCCCCCEEEEEEEEEECC--CCCCEEEECCCCCCCC T ss_conf 45541445687732798671699745278764324443036655332221215999999642--4699699888651200 Q ss_pred CCCCCCCCCCCCCCC------CCCEEEEEECCCCCCCCEEEECCCCCCCCCCCEEEEECCCCHHHHHCCCCCCCCCCEEE Q ss_conf 640013455300024------78645998623336664552135667788798999968870223243476899887799 Q gi|254780741|r 270 PDYLLYQESATIYPN------TGPYTAMVCGRSCLAGDIFGEFHFEKPVKIGDRISFEDVAGYNINRKNWFNGINMPTIA 343 (367) Q Consensus 270 ~~~~~~~~~~~~~~~------~~~~~~~v~G~~C~~~D~l~~~~~~~~l~~GD~l~i~~~GAY~~~~~~~Fn~~~~P~~v 343 (367) T Consensus 300 ~D~g~-P-~~~~~~~~g~~~~~~~~~~~v~~~-seEHgil~-~~~~~~l~vGd~v~iiP~H~-C----~T~n~~--~~~~ 368 (382) T cd06818 300 FDAGL-P-VPLRVFRPGGGVVRLPDGWEVTAL-NDQHAFLR-LPPESPLAVGDVIAFGISHP-C----TTFDKW--RVIL 368 (382) T ss_pred CCCCC-C-CCCCCCCCCCCCCCCCCCEEEECC-CCCEEEEE-CCCCCCCCCCCEEEEECCCC-C----CCHHHC--CEEE T ss_conf 24699-8-653201588532358997078011-36324787-79989999977899979964-7----391108--8899 Q ss_pred EEECCCCE Q ss_conf 99679909 Q gi|254780741|r 344 VKNVDGTI 351 (367) Q Consensus 344 ~~~~~g~~ 351 (367) T Consensus 369 vVd~~~~V 376 (382) T cd06818 369 LVDDDYRV 376 (382) T ss_pred EEECCCEE T ss_conf 99798869

HHsearch alignment for GI: 254780741 and conserved domain: cd06818