HHsearch alignment for GI: 254781012 and conserved domain: cd00408

>cd00408 DHDPS-like Dihydrodipicolinate synthase family. A member of the class I aldolases, which use an active-site lysine which stablilzes a reaction intermediate via Schiff base formation, and have TIM beta/alpha barrel fold. The dihydrodipicolinate synthase family comprises several pyruvate-dependent class I aldolases that use the same catalytic step to catalyze different reactions in different pathways and includes such proteins as N-acetylneuraminate lyase, MosA protein, 5-keto-4-deoxy-glucarate dehydratase, trans-o-hydroxybenzylidenepyruvate hydratase-aldolase, trans-2'-carboxybenzalpyruvate hydratase-aldolase, and 2-keto-3-deoxy- gluconate aldolase. The family is also referred to as the N-acetylneuraminate lyase (NAL) family.
Probab=91.11  E-value=1.1  Score=23.56  Aligned_cols=18  Identities=17%  Similarity=0.215  Sum_probs=6.6

Q ss_pred             ECCCHHHHHHHHHHCCCC
Q ss_conf             057858999998705733
Q gi|254781012|r  173 EHITTSNGIDYVNNATNI  190 (349)
Q Consensus       173 ~HiST~~sv~lir~ak~v  190 (349)
T Consensus        74 ~~~s~~~~~~~a~~a~~~   91 (281)
T cd00408          74 GANSTREAIELARHAEEA   91 (281)
T ss_pred             CCCCHHHHHHHHHHHHHC
T ss_conf             878899999999999975