>gnl|CDD|131468 TIGR02415, 23BDH, acetoin reductases. One member of this family, as characterized in Klebsiella terrigena, is described as able to interconvert acetoin + NADH with meso-2,3-butanediol + NAD(+). It is also called capable of irreversible reduction of diacetyl with NADH to acetoin. Blomqvist, et al. decline to specify either EC 1.1.1.4 which is (R,R)-butanediol dehydrogenase, or EC 1.1.1.5, which is acetoin dehydrogenase without a specified stereochemistry, for this enzyme. This enzyme is a homotetramer in the family of short chain dehydrogenases (pfam00106). Another member of this family, from Corynebacterium glutamicum, is called L-2,3-butanediol dehydrogenase (PubMed:11577733). Length = 254

 Score = 38.2 bits (89), Expect = 0.004
 Identities = 31/113 (27%), Positives = 47/113 (41%), Gaps = 14/113 (12%)

Query: 4   IVTGGAGFIGSALCRYLVNDLKIQVLVIDKLTYAGNLNSLKEISQSNLFS-FLQVDICDR 62
           +VTGGA  IG  +   L  D    V V D L       + KEI+Q+   +   ++D+ D+
Sbjct: 4   LVTGGAQGIGKGIAERLAKD-GFAVAVAD-LNEETAKETAKEINQAGGKAVAYKLDVSDK 61

Query: 63  ----ECIRSALKEF-QPDAIVNFAAESHVDRSILGADEFI-----TTNIIGTF 105
                 I  A ++F   D +VN A  + +   IL   E         N+ G  
Sbjct: 62  DQVFSAIDQAAEKFGGFDVMVNNAGVAPIT-PILEITEEELKKVYNVNVKGVL 113