>gnl|CDD|176228 cd08267, MDR1, Medium chain dehydrogenases/reductase (MDR)/zinc-dependent alcohol dehydrogenase-like family. This group is a member of the medium chain dehydrogenases/reductase (MDR)/zinc-dependent alcohol dehydrogenase-like family, but lacks the zinc-binding sites of the zinc-dependent alcohol dehydrogenases. The medium chain dehydrogenases/reductase (MDR)/zinc-dependent alcohol dehydrogenase-like family, which contains the zinc-dependent alcohol dehydrogenase (ADH-Zn) and related proteins, is a diverse group of proteins related to the first identified member, class I mammalian ADH. MDRs display a broad range of activities and are distinguished from the smaller short chain dehydrogenases (~ 250 amino acids vs. the ~ 350 amino acids of the MDR). The MDR proteins have 2 domains: a C-terminal NAD(P)-binding Rossmann fold domain of a beta-alpha form and an N-terminal catalytic domain with distant homology to GroES. The MDR group contains a host of activities, including the founding alcohol dehydrogenase (ADH), quinone reductase, sorbitol dehydrogenase, formaldehyde dehydrogenase, butanediol DH, ketose reductase, cinnamyl reductase, and numerous others. The zinc-dependent alcohol dehydrogenases (ADHs) catalyze the NAD(P)(H)-dependent interconversion of alcohols to aldehydes or ketones. Active site zinc has a catalytic role, while structural zinc aids in stability. ADH-like 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 = 319

 Score =  190 bits (485), Expect = 5e-49
 Identities = 94/325 (28%), Positives = 146/325 (44%), Gaps = 20/325 (6%)

Query: 15  YGKSNVM--FLAESPIPQPQKEEILIKVEAIGVNRPDVMQRKGLYPP--PKNANPILGLE 70
           YG   V+     E PIP P+  E+L+KV A  VN  D   R+G       +   PI G++
Sbjct: 6   YGSPEVLLLLEVEVPIPTPKPGEVLVKVHAASVNPVDWKLRRGPPKLLLGRPFPPIPGMD 65

Query: 71  VAGKIVDLGENTTHWNIGDEVCALVN---GGGYAEYCLSHQGHTLPIPKGYNAIQAASLP 127
            AG++V +G   T + +GDEV   +    GG  AEY ++ +      P+G +  +AA+LP
Sbjct: 66  FAGEVVAVGSGVTRFKVGDEVFGRLPPKGGGALAEYVVAPESGLAKKPEGVSFEEAAALP 125

Query: 128 ESFFTVWANLFQTANLRSGQTVLIHGGSSGIGTTAIQLASYFGATVYTTAKSEEKCLACL 187
            +  T    L     ++ GQ VLI+G S G+GT A+Q+A   GA V     S        
Sbjct: 126 VAGLTALQALRDAGKVKPGQRVLINGASGGVGTFAVQIAKALGAHVTGVC-STRNAELVR 184

Query: 188 KLGAKHAINYLKEDFLEILQKETQGRGIDIILDMVGAEYLNQ--HLTLLSKEGKLIIISF 245
            LGA   I+Y  EDF+        G   D+I D VG    +       L   G+ + +  
Sbjct: 185 SLGADEVIDYTTEDFVA---LTAGGEKYDVIFDAVGNSPFSLYRASLALKPGGRYVSVGG 241

Query: 246 LGGNIATEINLNPIISKRITITGSTLRRRTDIAKQSIRDSLQLKIWPLLNSHVIAPVIHT 305
               +     L  ++   +T+ G   R +  +AK +  D  QL     +    + PVI +
Sbjct: 242 GPSGL-----LLVLLLLPLTLGGGGRRLKFFLAKPNAEDLEQLAEL--VEEGKLKPVIDS 294

Query: 306 VLPLGKVAMAHDIMEKSEHIGKIIL 330
           V PL     A+  ++     GK+++
Sbjct: 295 VYPLEDAPEAYRRLKSGRARGKVVI 319