>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=95.34  E-value=0.22  Score=29.93  Aligned_cols=39  Identities=21%  Similarity=0.300  Sum_probs=29.5

Q ss_pred             EEEEEECHHHHCCHHHHHHHHHHHHHHHHCCCCEEEEECC
Q ss_conf             8999867567247468999999999985189717998457
Q 537021.9.peg.3   27 TIVVKYGGHVMNCTDLSKDFVNDIALLKKSNITPVIVHGG   66 (150)
Q Consensus        27 tiVIK~GG~~l~d~~l~~~~~~dI~ll~~~G~k~ViVHGg   66 (150)
T Consensus         1 ~~V~KFGGtSv~~~~~i~~v~~ii~~~-~~~~~~vVVvSA   39 (227)
T cd04234           1 MVVQKFGGTSVASAERIKRVADIIKAY-EKGNRVVVVVSA   39 (227)
T ss_pred             CEEEEECCCCCCCHHHHHHHHHHHHHH-HCCCCEEEEECC
T ss_conf             989967830179999999999999865-438988999738