RPSBLAST alignment for GI: 254780290 and conserved domain: cd08239

>gnl|CDD|176201 cd08239, THR_DH_like, L-threonine dehydrogenase (TDH)-like. MDR/AHD-like proteins, including a protein annotated as a threonine dehydrogenase. L-threonine dehydrogenase (TDH) catalyzes the zinc-dependent formation of 2-amino-3-ketobutyrate from L-threonine via NAD(H)-dependent oxidation. The zinc-dependent alcohol dehydrogenases (ADHs) catalyze the NAD(P)(H)-dependent interconversion of alcohols to aldehydes or ketones. Zinc-dependent ADHs are medium chain dehydrogenase/reductase type proteins (MDRs) and have a NAD(P)(H)-binding domain in a Rossmann fold of an beta-alpha form. The N-terminal region typically has an all-beta catalytic domain. In addition to alcohol dehydrogenases, this group includes quinone reductase, sorbitol dehydrogenase, formaldehyde dehydrogenase, butanediol DH, ketose reductase, cinnamyl reductase, and numerous others. These proteins typically form dimers (typically higher plants, mammals) or tetramers (yeast, bacteria), and generally have 2 tightly bound zinc atoms per subunit. The active site zinc is coordinated by a histidine, two cysteines, and a water molecule. The second zinc seems to play a structural role, affects subunit interactions, and is typically coordinated by 4 cysteines. Length = 339
 Score = 75.0 bits (185), Expect = 2e-14
 Identities = 74/279 (26%), Positives = 113/279 (40%), Gaps = 39/279 (13%)

Query: 23  LAESPIPQPQKEEILIKVEAIGVNRPDVMQRKGLYPPPKNANPILGLEVAGKIVDLGENT 82
           L E P+P P   E+L++V+A G+   D+      +  P     I G E AG +V +G   
Sbjct: 14  LREFPVPVPGPGEVLLRVKASGLCGSDLHYYYHGHRAPAYQGVIPGHEPAGVVVAVGPGV 73

Query: 83  THWNIGDEV-------CALVNG---------------------GGYAEYCLSHQGHTLPI 114
           TH+ +GD V       C                          GG+AEY L  +   +P+
Sbjct: 74  THFRVGDRVMVYHYVGCGACRNCRRGWMQLCTSKRAAYGWNRDGGHAEYMLVPEKTLIPL 133

Query: 115 PKGYNAIQAASLPESFFTVWANLFQTANLRSGQTVLIHG-GSSGIGTTAIQLASYFGAT- 172
           P   +    A L     T +  L +   +    TVL+ G G  G+G     LA   GA  
Sbjct: 134 PDDLSFADGALLLCGIGTAYHAL-RRVGVSGRDTVLVVGAGPVGLGALM--LARALGAED 190

Query: 173 VYTTAKSEEKCLACLKLGAKHAINYLKEDFLEILQKETQGRGIDIILDMVGAEYL-NQHL 231
           V     S E+      LGA   IN  ++D  EI ++ T G G D+ ++  G        L
Sbjct: 191 VIGVDPSPERLELAKALGADFVINSGQDDVQEI-RELTSGAGADVAIECSGNTAARRLAL 249

Query: 232 TLLSKEGKLIIISFLGGNIATEINLNP-IISKRITITGS 269
             +   G+L+    +G      I ++  +I K+ T+ GS
Sbjct: 250 EAVRPWGRLV---LVGEGGELTIEVSNDLIRKQRTLIGS 285