>cd04234 AAK_AK AAK_AK: Amino Acid Kinase Superfamily (AAK), Aspartokinase (AK); this CD includes the N-terminal catalytic domain of aspartokinase (4-L-aspartate-4-phosphotransferase;). AK is the first enzyme in the biosynthetic pathway of the aspartate family of amino acids (lysine, threonine, methionine, and isoleucine) and the bacterial cell wall component, meso-diaminopimelate. It also catalyzes the conversion of aspartate and ATP to aspartylphosphate and ADP. One mechanism for the regulation of this pathway is by the production of several isoenzymes of aspartokinase with different repressors and allosteric inhibitors. Pairs of ACT domains are proposed to specifically bind amino acids leading to allosteric regulation of the enzyme. In Escherichia coli, three different aspartokinase isoenzymes are regulated specifically by lysine, methionine, and threonine. AK-HSDHI (ThrA) and AK-HSDHII (MetL) are bifunctional enzymes that consist of an N-terminal AK and a C-terminal homoserine dehyd

Probab=99.10 E-value=1.1e-09 Score=74.20 Aligned_cols=120 Identities=26% Similarity=0.392 Sum_probs=86.0 Q ss_pred EEEECHHHHHHHH-HCCCEEEECC-CCCCCCCCEECC---CHHHHHHHHHHHHCHHHHHHHCCCCCEEECCC------CC Q ss_conf 1355699999999-7798499857-431787320066---14799999998625113343226763353455------55 Q 537021.9.peg.3 7 VIKVNRTILDLLI-KSGIIPVIAP-IAPGYDGATYNI---NADTFAGAIAEKLNVIRLLFLTDVPGVLDKNR------QL 75 (142) Q Consensus 7 v~~vd~~~i~~lL-~~g~iPVi~p-ig~~~~G~~~ni---n~D~~a~~lA~~l~A~kli~ltdv~Gv~d~~~------~~ 75 (142) T Consensus 97 ~~~~~~~~l~~~l~~~~~v~Vv~GF~g~~~~G~~tTLGRGGSD~TA~~lA~~l~A~~~~I~TDVdGi~taDPr~v~~A~~ 176 (227) T cd04234 97 IIEISYERLKELLAEIGKVPVVTGFIGRNEDGEITTLGRGGSDYSAAALAAALGADEVEIWTDVDGIYTADPRIVPEARL 176 (227) T ss_pred EHHHCHHHHHHHHHHCCCEEEECCEEEECCCCCEEEECCCCHHHHHHHHHHHHCCHHHEEEECCCEEECCCCCCCCCCEE T ss_conf 45428999999997389679962604540588468838885678999999981860222212687047279974788624 Q ss_pred CCCCCHHHHHHHHHCCCCCCCHHHHHHHHHHHHHCCCCEEEEEECCCCCHHHHHHHCCCCCCCEEC Q ss_conf 563388899999626976786789999999999849988999525787689999967998663454 Q 537021.9.peg.3 76 ISKLSINEARTLIKDGTISGGMIPKIETSIKAIENGVKSVAILDGKKPHSILMEIFTKNGSGTLLI 141 (142) Q Consensus 76 i~~i~~~e~~~l~~~~~~~~gm~~Ki~~a~~a~~~Gv~~v~i~~~~~~~~ll~elft~~g~GT~i~ 141 (142) T Consensus 177 i~~lsy~Ea~ela~~Ga--kVlHp--~ti~pa~~~~Ip-i~i~nt----------~~p~~~GT~Is 227 (227) T cd04234 177 IPEISYDEALELAYFGA--KVLHP--RAVEPARKANIP-IRVKNT----------FNPEAPGTLIT 227 (227) T ss_pred ECCCCHHHHHHHHHCCC--CCCCH--HHHHHHHHCCCE-EEEECC----------CCCCCCCEEEC T ss_conf 04419999999997797--41699--999999986983-999289----------99999981769

HHsearch alignment for GI: peg_394 and conserved domain: cd04234