>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=98.71 E-value=7.6e-08 Score=74.08 Aligned_cols=206 Identities=13% Similarity=0.128 Sum_probs=127.3 Q ss_pred HHHHHHHHHHHHHHCCCCHHHCEEEEECCCCCHHHH-HHHHH-CCCCCCCCCCCHHHHHHHHCCCCCCCCCEEEECCC-- Q ss_conf 999999999999981989644189987189999999-99997-29810001210001111000001258730230244-- Q gi|254780801|r 7 LQVFKQKIENSAILAKRPKDSVSLVAVSKMVDSKKI-RVALS-CGQVIFAENKLQEAKKKWIPLRKEWDVQLRFIGSL-- 82 (222) Q Consensus 7 l~~i~~~I~~a~~~~gR~~~~v~LiaVtK~~~~e~I-~~~~~-~G~~~fGENrvQE~~~K~~~l~~~~~i~wHfIG~L-- 82 (222) T Consensus 16 ldal~~Ni~~m~~~~~---~~~~lRph~Ks~ks~~ll~~~~~~~g~~g~~~~~~~e~~~~~~~~~~-~D---iLl~~p~~ 88 (379) T cd06814 16 KDRLDHNIDLLREHLA---GSLAYRIVAKSLPSPPLLRHIMKRAGTRRLMVFHQPFLNAVAKAFPD-AD---ILLGKPMP 88 (379) T ss_pred HHHHHHHHHHHHHHHC---CCCCCCCEECCCCCHHHHHHHHHHCCCCEEEEECHHHHHHHHHHCCC-CC---EEECCCCC T ss_conf 8999999999999756---89973535040579999999987459875788219999999974766-64---89648774 Q ss_pred CCCHHHHHCC-------C-CHHCCCCCCCCHHHHHHHHHHHHCCCEEEEEEEECCCCCCCCCCCC-CHHHHHHHHHHCCC Q ss_conf 3200132011-------1-0000122222001344333333114303688970046656346570-00122234431043 Q gi|254780801|r 83 QSNKVSEIVS-------L-FDVIETVSREKTASLLSLEMIKQSRFLPVYIQVNTGYEIQKSGIMP-NQTKDFVILCRQKY 153 (222) Q Consensus 83 QsNKvk~i~~-------~-~~~Ihsvds~~~a~~L~~~~~~~~~~~~vliQVN~~~e~~K~G~~p-~el~~l~~~i~~~~ 153 (222) T Consensus 89 ~~~~~~~~~~~~~~~~~~~~~i~~~VD~~~~l~~l~~~a~~~g~~l~V~ieiDvG--~~R~Gv~~~~~a~~la~~I~~~~ 166 (379) T cd06814 89 VAAAARFYRQLTGSAFRPARQLQWLIDTPERLAQYRALARSLGLTLRINLELDVG--LHRGGFADPQTLPKALTAIDAPP 166 (379) T ss_pred CHHHHHHHHHHHHCCCCCCCCEEEEEECHHHHHHHHHHHHHCCCCEEEEEEECCC--CCCCCCCCHHHHHHHHHHHHHCC T ss_conf 0789999987331002665617999838999999999998759816899996788--87388789799999999997389 Q ss_pred CCCHHHHEECCCCC----C--CCH----HHHHH---HHHHHHH-----CCCCEECCCCCHHHHHHHH-HCCCEEEECHHH Q ss_conf 11001110115433----4--520----58999---9999887-----5894722477734899998-089889971132 Q gi|254780801|r 154 QLNVEGLMCIPPAM----G--NPK----PHFYL---LSEIARE-----CKLTKLSMGMTRDFELAIA-SGATSVRIGSGI 214 (222) Q Consensus 154 ~L~i~GLMti~p~~----~--d~~----~~F~~---l~~l~~~-----~~~~~LSmGMS~D~~~Ai~-~Gst~vRiGs~i 214 (222) T Consensus 167 ~l~l~Glm~Yeghi~~~~~~~~r~~~~~~a~~~~~~~~~~~~~~~~~~~~~~~vngGGTgT~~~~~~~~~~tEv~aGS~~ 246 (379) T cd06814 167 RLRFSGLMGYEPHVAKLPGLISPAKARAAAMARYQAFVALARAHLGAHTQKLTLNTGGSPTYRLYEGDGPVNEVSAGSAL 246 (379) T ss_pred CCEEEEEEEEHHHHCCCCCCHHHHHHHHHHHHHHHHHHHHHHHHHCCCCCCCEEEECCCCCCEEECCCCCCEEECCCCCE T ss_conf 97798985164656559870318999999999999999999875403676656942687430011479973288777357 Q ss_pred CCCCCCC Q ss_conf 3899999 Q gi|254780801|r 215 FGERPCQ 221 (222) Q Consensus 215 FG~R~~~ 221 (222) T Consensus 247 f~p~dfd 253 (379) T cd06814 247 VKPTDFD 253 (379) T ss_pred ECCCCCC T ss_conf 2401014

HHsearch alignment for GI: 254780801 and conserved domain: cd06814