>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=99.96 E-value=2.5e-29 Score=204.51 Aligned_cols=319 Identities=20% Similarity=0.202 Sum_probs=218.4 Q ss_pred CCHHHHHHHHHHHHHHCCCCCCHHHHHHHHHHHHHHHHHHHHHHHCCCCCCCCCCCCCCHHHHHHHHHHHHHHHHHHCCC Q ss_conf 89899999999998614986602679999999999999999999828797654334687689876543223444320134 Q gi|254781062|r 35 KPQDVIDSIMCTYSHEYANIHRGLHYMANAVTDKYEKARDKVRRFINASSVKEIIFTRSATESINLVSYGWGARHISTGD 114 (406) Q Consensus 35 ~~~~V~~a~~~~~~~~~~n~~~~~~~~~~~~~~~~~~aR~~ia~~lga~~~~~v~ft~~~Te~~n~~~~~~~~~~~~~gd 114 (406) T Consensus 16 ~~p~~~~a~~~a~~~~G~g~~~sr~~~G--~~~~~~~lE~~la~~~g~e~---al~~~sG~~an~~~i~~l----~~~~d 86 (349) T cd06454 16 NHPEVIEAAKEALDKYGVGAGGSRLISG--TSDLHEELEEELAEFHGKEA---ALVFSSGYAANDGVLSTL----AGKGD 86 (349) T ss_pred CCHHHHHHHHHHHHHCCCCCCCCCCCCC--CHHHHHHHHHHHHHHHCCCE---EEEECCHHHHHHHHHHHC----CCCCC T ss_conf 8999999999999973998887673647--87999999999999869981---999557078778888620----57897 Q ss_pred CCCCCHHHHHHHHHHCCCCCCCCCCCCCCCCCCCCCCCHHHHHHHHCCC-----CCCCCCCCCCCCCCCCCCCCCCEECC Q ss_conf 4345401100001000012222322222222222221025788751023-----34433222222223333333210002 Q gi|254781062|r 115 EIVLSVMEHHSNIIPWYFLRQRRGASLVWVPIDNQGFFHIDEFKNRLTE-----RTKLIAITHMSNVLGTVIPIKEICRI 189 (406) Q Consensus 115 ~Vi~s~~eh~s~~~~~~~~~~~~G~~v~~i~~~~~g~id~~~l~~~i~~-----~t~lv~i~~~~~~tG~~~pi~~I~~~ 189 (406) T Consensus 87 ~i~~D~~~H~si~~G~----~~s~a~~~~f~Hn-----d~~~L~~~l~~~~~~~~~~~iv~egv~Sm~Gd~apL~~l~~l 157 (349) T cd06454 87 LIISDSLNHASIIDGI----RLSGAKKRIFKHN-----DMEDLEKLLREARRPYGKKLIVTEGVYSMDGDIAPLPELVDL 157 (349) T ss_pred EEEECCCCCHHHHHHH----HCCCCCEEEECCC-----CHHHHHHHHHHHHCCCCCEEEEECCCCCCCCCCCCHHHHHHH T ss_conf 7974153437288636----5244647997899-----999999999853225897699965767888776798999999 Q ss_pred CCCCCCCCCCCCCCCCCCCCC--------CHHHHCCCCCCCCCCCCCCCCCCCHHHCCCCCCCCCEEECCCCEEEEEEEC Q ss_conf 344443101233200011100--------001100112223432223544431000256663100121145303433202 Q gi|254781062|r 190 AHERNIPVLVDGSQGSVHNFV--------DVQDIDCDWYIITGHKLYGPSGIGGLYSKESRLNEMDPFMGGSEMIADVTQ 261 (406) Q Consensus 190 ~~~~g~~~~vD~aq~~g~~~i--------d~~~~~~D~~~~S~hK~~Gp~G~G~l~~~~~~~~~~~p~~~g~~~~~~~~~ 261 (406) T Consensus 158 ~~~~~~~livDeAH~~Gv~G~~G~G~~~~~~~~~~~di~~~tlsKa~G~~G-g~v~g~~~~i~~l~~~~~---------- 226 (349) T cd06454 158 AKKYGAILFVDEAHSVGVYGPHGRGVEEFGGLTDDVDIIMGTLGKAFGAVG-GYIAGSKELIDYLRSYAR---------- 226 (349) T ss_pred HHHHCCEEEEECHHHCCCCCCCCCCHHHHCCCCCCCEEEECCCCCCCCCCC-CEEECCHHHHHHHHHHCC---------- T ss_conf 998297899723233174158887678865898866799853654346777-124253568999986198---------- Q ss_pred CCCCCCCCHHCCCCCCCCCHHHHHHHHHCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCEEEECCCCCCCCCEEEEEECC Q ss_conf 45300331000001221202456642101233222222222222222222222222221013226852158679998089 Q gi|254781062|r 262 DMVTYADLPYRFEPGTPPISQAIALGVALDYVEKIDRKSIFSYERELARYVRSRLKEVRGMQLVNESLEDSPIISFRLGN 341 (406) Q Consensus 262 ~~~~~~~~~~r~e~Gt~~~~~~~al~~al~~~~~~g~~~i~~~~~~l~~~l~~~L~~~~g~~i~~~~~~~~~iv~~~~~~ 341 (406) T Consensus 227 --------~~i~s-~~l~p~~~aa~~~al~~l~~--~~~~~~~L~~~~~~~~~~l~~~-g~~i~~~~--~~~i~~~~~~~ 292 (349) T cd06454 227 --------GFIFS-TSLPPAVAAAALAALEVLQG--GPERRERLQENVRYLRRGLKEL-GFPVGGSP--SHIIPPLIGDD 292 (349) T ss_pred --------CCCCC-CCCCHHHHHHHHHHHHHHHC--CCHHHHHHHHHHHHHHHHHHHC-CCCCCCCC--CCCEEEEECCC T ss_conf --------85777-77689999999999999863--9588999999999999999976-99757999--97279998699 Q ss_pred C-CHHHHHHHHHHCCCEEEECCHHHHHHHHHCCCCCEEEEEECCCCCHHHHHHHHHHHHHH Q ss_conf 9-99999999987896999752112788997289957999935888999999999999999 Q gi|254781062|r 342 I-HPYDLALFLDGEGIAIRAGTHCANPLLKFLGIDSLCRASLAMYNTYEEADKFIETLKKS 401 (406) Q Consensus 342 ~-~~~~v~~~L~~~gI~v~~G~~ca~~~~~~~g~~~~iRiS~~~~nt~edid~~i~~l~~~ 401 (406) T Consensus 293 ~~~a~~~~~~L~~~Gi~v~~~~~Ptvp----~~-~~~lRi~~sa~ht~edId~li~~l~ev 348 (349) T cd06454 293 PAKAVAFSDALLERGIYVQAIRYPTVP----RG-TARLRISLSAAHTKEDIDRLLEALKEV 348 (349) T ss_pred HHHHHHHHHHHHHCCCEEEEECCCCCC----CC-CCEEEEEECCCCCHHHHHHHHHHHHHH T ss_conf 999999999998879628637989789----99-835999868779999999999999974

HHsearch alignment for GI: 254781062 and conserved domain: cd06454