>cd06454 KBL_like KBL_like; this family belongs to the pyridoxal phosphate (PLP)-dependent aspartate aminotransferase superfamily (fold I). The major groups in this CD corresponds to serine palmitoyltransferase (SPT), 5-aminolevulinate synthase (ALAS), 8-amino-7-oxononanoate synthase (AONS), and 2-amino-3-ketobutyrate CoA ligase (KBL). SPT is responsible for the condensation of L-serine with palmitoyl-CoA to produce 3-ketodihydrospingosine, the reaction of the first step in sphingolipid biosynthesis. ALAS is involved in heme biosynthesis; it catalyzes the synthesis of 5-aminolevulinic acid from glycine and succinyl-coenzyme A. AONS catalyses the decarboxylative condensation of l-alanine and pimeloyl-CoA in the first committed step of biotin biosynthesis. KBL catalyzes the second reaction step of the metabolic degradation pathway for threonine converting 2-amino-3-ketobutyrate, to glycine and acetyl-CoA. The members of this CD are widely found in all three forms of life.

Probab=99.64 E-value=8.5e-13 Score=100.73 Aligned_cols=303 Identities=17% Similarity=0.099 Sum_probs=188.3 Q ss_pred CHHHHHHHHHHHCC--CCC---CCCH-HHHHHHHHHHHHHHHHHCCCCCCEEEEECCCCHHHHHHHHHHCCCCCCEEEEE Q ss_conf 96899998632103--653---2898-89999999999999996889985799974873489998753205789707997 Q gi|254780153|r 24 RPGWSLGILEGALL--GRS---HRCV-LGKERINKAIQLTRKVLEVPENYRIAIVPASDTGAVEMALWSLLGYRGVDVLA 97 (391) Q Consensus 24 ~p~~v~~~~~~~~l--~~s---HRs~-~f~~i~~~~~~~l~~l~~~p~~y~v~~l~GsgT~~~ea~~~nl~~~~~~~~~~ 97 (391) T Consensus 17 ~p~-~~~a~~~a~~~~G~g~~~sr~~~G~~~~~~~lE~~la~~~g~e~---al~~-~sG~~an~~~i~~l~~~~d~i~~D 91 (349) T cd06454 17 HPE-VIEAAKEALDKYGVGAGGSRLISGTSDLHEELEEELAEFHGKEA---ALVF-SSGYAANDGVLSTLAGKGDLIISD 91 (349) T ss_pred CHH-HHHHHHHHHHHCCCCCCCCCCCCCCHHHHHHHHHHHHHHHCCCE---EEEE-CCHHHHHHHHHHHCCCCCCEEEEC T ss_conf 999-99999999997399888767364787999999999999869981---9995-570787788886205789779741 Q ss_pred ECCHHHHHHHHHHHCCCCCEEEEECCCCCCCCHHHC-C----CCCCEEEEEEE---CCCCEEECCEEE--ECCCCCCEEE Q ss_conf 073688888765323876306740577765786767-8----55657997420---242022032035--0256861488 Q gi|254780153|r 98 WESFGLGWMSDIRQLSLQDVREFTAPYGSLPDFSKV-D----FDRDVVFVWNG---TTSGVCVPDVGF--IPESREGLVI 167 (391) Q Consensus 98 ~g~~~~r~~~~~~~~~~~~~~~~~~~~g~~~~~~~~-~----~~~~v~~~h~E---TstGv~~~~~~~--~~~~~~~lli 167 (391) T Consensus 92 ~~~H~s--i~~G~~~s~a~~~~--f~Hnd~~~L~~~l~~~~~~~~~~-~iv~egv~Sm~Gd~apL~~l~~l~~~~~~~li 166 (349) T cd06454 92 SLNHAS--IIDGIRLSGAKKRI--FKHNDMEDLEKLLREARRPYGKK-LIVTEGVYSMDGDIAPLPELVDLAKKYGAILF 166 (349) T ss_pred CCCCHH--HHHHHHCCCCCEEE--ECCCCHHHHHHHHHHHHCCCCCE-EEEECCCCCCCCCCCCHHHHHHHHHHHCCEEE T ss_conf 534372--88636524464799--78999999999998532258976-99965767888776798999999998297899 Q ss_pred EEECCHHHHC--------C--CCCCCCEEEEECCHHCCCCCCCCEEEEECHHHHHHHHHCCCCCCCCCHHHCCHHHHHHC Q ss_conf 6401101102--------5--45568579997001200176651544567788876541144577831232001123210 Q gi|254780153|r 168 CDATSAVFAR--------H--IDFNKLDVVTFSAQKVLGGEAGFGIIILSPASVERLEKYVPSWPLPKIFRMVKGGRVME 237 (391) Q Consensus 168 vD~vSs~g~~--------p--~d~~~iDv~~a~sQK~l~~ppGl~~v~~s~~al~~~~~~~~~~~~~~~~~~~~~~~~~~ 237 (391) T Consensus 167 vDeAH~~Gv~G~~G~G~~~~~~~~~~~di~~~tlsKa~G~~Gg--~v~g~~~~i~~l~~~~~~----~------------ 228 (349) T cd06454 167 VDEAHSVGVYGPHGRGVEEFGGLTDDVDIIMGTLGKAFGAVGG--YIAGSKELIDYLRSYARG----F------------ 228 (349) T ss_pred EECHHHCCCCCCCCCCHHHHCCCCCCCEEEECCCCCCCCCCCC--EEECCHHHHHHHHHHCCC----C------------ T ss_conf 7232331741588876788658988667998536543467771--242535689999861988----5------------ Q ss_pred CCCCCCCCCCCCHHHHHHHHHHHHHHHCCCCHHHHHHHHHHHHHHHHHHHHHCCCCCCCCCCCCCCCCCEEEEEECCCCC Q ss_conf 33478644666448899999999862010318999999997799999998747971676688200365317898247310 Q gi|254780153|r 238 GLFCGETINTPSLLCIEDYIDALLWLKKMGGLSACVERCNANAAVLFQFIQENDWIENLAVDETTRSNTSICMKIVDSDI 317 (391) Q Consensus 238 ~~~~~~~~~TP~v~~i~al~~~l~~i~~~gGl~~~~~r~~~~a~~l~~~i~~~~~~~~~~~~~~~rS~~~v~~~~~d~~~ 317 (391) T Consensus 229 ---i~s~--~l~p~~~aa~~~al~~l~~---~~~~~~~L~~~~~~~~~~l~~~g-~~i-~--~~-~~~~i~~~~~~~~-- 293 (349) T cd06454 229 ---IFST--SLPPAVAAAALAALEVLQG---GPERRERLQENVRYLRRGLKELG-FPV-G--GS-PSHIIPPLIGDDP-- 293 (349) T ss_pred ---CCCC--CCCHHHHHHHHHHHHHHHC---CCHHHHHHHHHHHHHHHHHHHCC-CCC-C--CC-CCCCEEEEECCCH-- T ss_conf ---7777--7689999999999999863---95889999999999999999769-975-7--99-9972799986999-- Q ss_pred CCCCHHHHHHHHHHHHHHHHHCCEEECCCCCCCCCCE---EEEECCCCCCHHHHHHHHHHHHHH Q ss_conf 1137345678889999988862828726655676750---568615888999999999999999 Q gi|254780153|r 318 ASLDINSQKSFCKSMLSFLEKEEIAYDIGSYRDAPLG---LRVWVGVTVEKEDLLLLCDWLRWV 378 (391) Q Consensus 318 ~~~~~~~~~~~~~~~~~~l~~~g~~~~~~~~r~~~~~---~RIg~~g~i~~~dv~~L~~aLe~~ 378 (391) T Consensus 294 ---------~~a~~~~~~L~~~Gi~v~~~~~Ptvp~~~~~lRi~~sa~ht~edId~li~~l~ev 348 (349) T cd06454 294 ---------AKAVAFSDALLERGIYVQAIRYPTVPRGTARLRISLSAAHTKEDIDRLLEALKEV 348 (349) T ss_pred ---------HHHHHHHHHHHHCCCEEEEECCCCCCCCCCEEEEEECCCCCHHHHHHHHHHHHHH T ss_conf ---------9999999999887962863798978999835999868779999999999999974

HHsearch alignment for GI: 254780153 and conserved domain: cd06454