>cd06814 PLPDE_III_DSD_D-TA_like_3 Type III Pyridoxal 5-phosphate (PLP)-Dependent Enzymes Similar to D-Serine Dehydratase and D-Threonine Aldolase, Unknown Group 3. This subfamily is composed of uncharacterized bacterial proteins with similarity to eukaryotic D-serine dehydratases (DSD) and D-threonine aldolases (D-TA). DSD catalyzes the dehydration of D-serine to aminoacrylate, which is rapidly hydrolyzed to pyruvate and ammonia. D-TA reversibly catalyzes the aldol cleavage of D-threonine into glycine and acetaldehyde, and the synthesis of D-threonine from glycine and acetaldehyde. DSD and D-TA are fold type III PLP-dependent enzymes, similar 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 their similarity to AR, it is possible mem

Probab=99.85 E-value=4e-18 Score=136.98 Aligned_cols=320 Identities=16% Similarity=0.094 Sum_probs=201.5 Q ss_pred CEEEEEEHHHHHHHHHHHHHHC-CCCEEEEEEECCCCCCCHHHHHHHHHH-CCCCEEEECCHHHHHHHHHHCCCCCEEEE Q ss_conf 5099986889999999998628-997599999328665798999999998-79989998559999999983898526730 Q gi|254780333|r 6 FLRLKIDLTALKNNWHSMNALS-GNARTAAVVKDNAYGLGCEKIAPALYN-AGVQDFFVTSVEEGVKLRLYTPQARIFVL 83 (370) Q Consensus 6 ~~~leIdl~al~~Ni~~i~~~~-~~~~i~aVVKanAYGhG~~~va~~l~~-~Gv~~faVa~~~EA~~lR~~g~~~~Ilvl 83 (370) T Consensus 9 tP~lvvDldal~~Ni~~m~~~~~~~~~lRph~Ks----~ks~~ll~~~~~~~g~~g~~~~~~~e~~~~~~~~~~~DiLl~ 84 (379) T cd06814 9 EPTLLLDKDRLDHNIDLLREHLAGSLAYRIVAKS----LPSPPLLRHIMKRAGTRRLMVFHQPFLNAVAKAFPDADILLG 84 (379) T ss_pred CCEEEEEHHHHHHHHHHHHHHHCCCCCCCCEECC----CCCHHHHHHHHHHCCCCEEEEECHHHHHHHHHHCCCCCEEEC T ss_conf 9769961899999999999975689973535040----579999999987459875788219999999974766648964 Q ss_pred CCCCHHH-HHH---H------HHHHHHCCCCCHHHHHHHHHHH-HCCCCCCCEEEECCCCCCCCCC-HHHHHHHHHHHHH Q ss_conf 6897469-888---8------7542101348998999988887-6088776167612666765569-8899999988886 Q gi|254780333|r 84 YGIHPGQ-EKI---I------FDTNLIPVISSVPQLTFYSKLM-SCGVSHPYALQVDTGFNRLGLS-LQEALDFTHNSFN 151 (370) Q Consensus 84 ~~~~~~~-~~~---~------~~~~i~~~i~s~~~l~~l~~~~-~~~~~~~vhlkiDTGM~R~G~~-~~e~~~~~~~~~~ 151 (370) T Consensus 85 ~p~~~~~~~~~~~~~~~~~~~~~~~i~~~VD~~~~l~~l~~~a~~~g~~l~V~ieiDvG~~R~Gv~~~~~a~~la~~I~~ 164 (379) T cd06814 85 KPMPVAAAARFYRQLTGSAFRPARQLQWLIDTPERLAQYRALARSLGLTLRINLELDVGLHRGGFADPQTLPKALTAIDA 164 (379) T ss_pred CCCCCHHHHHHHHHHHHCCCCCCCCEEEEEECHHHHHHHHHHHHHCCCCEEEEEEECCCCCCCCCCCHHHHHHHHHHHHH T ss_conf 87740789999987331002665617999838999999999998759816899996788873887897999999999973 Q ss_pred HHCCCHHHHH---CCCCCCCCCCC--H---HHHHHHHHHHHHHHHHC--CCCHHHCCCCHHCCC----CCCCCHHHCCCC Q ss_conf 3100012432---01243333466--7---88999999999975434--886011164110047----732220204873 Q gi|254780333|r 152 KKLGQLSLII---SHLACADDPSS--H---VNSVQLERFRTLISHYK--GIEASLASSSGILLG----PNYHFQLTRPGI 217 (370) Q Consensus 152 ~~~~~i~gi~---THfa~ad~~~~--~---~~~~Q~~~F~~~~~~~~--~~~~h~~nS~~~l~~----p~~~~d~vR~Gi 217 (370) T Consensus 165 ~~~l~l~Glm~Yeghi~~~~~~~~r~~~~~~a~~~~~~~~~~~~~~~~~~~~~~~vngGGTgT~~~~~~~~~~tEv~aGS 244 (379) T cd06814 165 PPRLRFSGLMGYEPHVAKLPGLISPAKARAAAMARYQAFVALARAHLGAHTQKLTLNTGGSPTYRLYEGDGPVNEVSAGS 244 (379) T ss_pred CCCCEEEEEEEEHHHHCCCCCCHHHHHHHHHHHHHHHHHHHHHHHHHCCCCCCCEEEECCCCCCEEECCCCCCEEECCCC T ss_conf 89977989851646565598703189999999999999999998754036766569426874300114799732887773 Q ss_pred CCCCCCCC-CCCCCCCCCEEEEEEEEEEE---EEECCCCCCCCCCCCCCCCCCEEEEECCCCCCCEECCCCCCCCCCCCC Q ss_conf 53067877-67556764100123688632---671489834665653467764179712330026010236854334443 Q gi|254780333|r 218 SLYGGTDK-INKSHPMQTVVTAEARIILI---RKALAGELVSYGGQKKLTRDSLIAVAAIGYADGYPLTLSGLDSEHSPS 293 (370) Q Consensus 218 ~lYG~~~~-~~~~~~l~pv~~l~s~i~~i---r~l~~G~~VgYg~~~~~~~~~~iavipiGYaDG~pr~ls~~~~~~~~~ 293 (370) T Consensus 245 ~~f~p~dfd~~~~~~~~pA~~ia~~Vv~~~~~~~~~~~~g~~~~~~~~~~~~~~~~~i~Gg~w~a~p------------- 311 (379) T cd06814 245 ALVKPTDFDLPALEDHQPALFIATPVLKVLDALEIPGLPGLGRLLPLWNPNRRRAYFIYGGNWKADP------------- 311 (379) T ss_pred CEECCCCCCCCCCCCCCCCHHHHCEEEECCCCCCCCCCCCCCEECCCCCCCCCCCEEECCCCCCCCC------------- T ss_conf 5724010144344455620544100032168772123542221014568875654031178645665------------- Q ss_pred CCCCCEEEECC-EEEEEEEECCCCCEEEECCCCCCCCCCCEEEEECCCCCHHHHHHHHC Q ss_conf 23288699999-99507700425647996688778788878999788889989999817 Q gi|254780333|r 294 VFLGGKGFIKG-YMVPILGKITMDMTMFDITDSLSIEVGDYIQIFGPDIKLDDVALASG 351 (370) Q Consensus 294 ~~~~~~vli~G-~~~pivGrv~MD~~~vdvt~~~~~~~GD~V~l~G~~i~~~~~A~~~g 351 (370) T Consensus 312 ------~~P~Gl~~~~~~g~-se~q~~l~~~~~~~L~vGD~V~lrp~h--a~~~~~~f~ 361 (379) T cd06814 312 ------VSPAGLRYNGLYGR-SSNQEMLNGSASSQLKVDDYVFLRPTQ--SEAVLLQFG 361 (379) T ss_pred ------CCCCCCCCCCCCCC-CCCCCEEECCCCCCCCCCCEEEEECCC--CCHHHHHCC T ss_conf ------47888776750314-666411545776679999999995575--336667248

HHsearch alignment for GI: 254780333 and conserved domain: cd06814