HHsearch alignment for GI: 254780450 and conserved domain: TIGR01124

>TIGR01124 ilvA_2Cterm threonine ammonia-lyase, biosynthetic; InterPro: IPR005787 Serine and threonine dehydratases , are functionally and structurally related pyridoxal-phosphate dependent enzymes. L-serine dehydratase () and D-serine dehydratase () catalyze the dehydratation of L-serine (respectively D-serine) into ammonia and pyruvate. Threonine dehydratase () (TDH) catalyzes the dehydratation of threonine into alpha-ketobutarate and ammonia. In Escherichia coli and other microorganisms, two classes of TDH are known to exist. One is involved in the biosynthesis of isoleucine, the other in hydroxamino acid catabolism. Threonine synthase () is also a pyridoxal-phosphate enzyme, it catalyzes the transformation of homoserine-phosphate into threonine. It has been shown that threonine synthase is distantly related to the serine/threonine dehydratases. In all these enzymes, the pyridoxal-phosphate group is attached to a lysine residue. This family describes a form of threonine dehydratase, with two copies of the threonine dehydratase C-terminal domain IPR001721 from INTERPRO. Members with known function participate in isoleucine biosynthesis and are inhibited by isoleucine.; GO: 0004794 L-threonine ammonia-lyase activity, 0009097 isoleucine biosynthetic process.
Probab=96.11  E-value=0.11  Score=29.87  Aligned_cols=16  Identities=25%  Similarity=0.474  Sum_probs=7.6

Q ss_pred             HHHHHCCCCHHHHCCC
Q ss_conf             6886709995673156
Q gi|254780450|r   55 AYNALTNAVWNKRTKS   70 (803)
Q Consensus        55 a~~~l~G~~~~~~~~~   70 (803)
T Consensus        54 AYnkMa~Ls~E~~A~G   69 (508)
T TIGR01124        54 AYNKMAQLSAEQRARG   69 (508)
T ss_pred             HHHHHHCCCHHHHCCC
T ss_conf             9986514887584182