>gnl|CDD|176254 cd08294, leukotriene_B4_DH_like, 13-PGR is a bifunctional enzyme with delta-13 15-prostaglandin reductase and leukotriene B4 12 hydroxydehydrogenase activity. Prostaglandins and related eicosanoids are metabolized by the oxidation of the 15(S)-hydroxyl group of the NAD+-dependent (type I 15-PGDH) 15-prostaglandin dehydrogenase (15-PGDH) followed by reduction by NADPH/NADH-dependent (type II 15-PGDH) delta-13 15-prostaglandin reductase (13-PGR) to 15-keto- 13,14,-dihydroprostaglandins. 13-PGR is a bifunctional enzyme, since it also has leukotriene B(4) 12-hydroxydehydrogenase activity. These 15-PGDH and related enzymes are members of the medium chain dehydrogenase/reductase family. 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. Length = 329

 Score = 55.7 bits (135), Expect = 1e-08
 Identities = 64/274 (23%), Positives = 114/274 (41%), Gaps = 34/274 (12%)

Query: 13  SGYGKSNVMFLAESPIPQPQKEEILIKVEAIGVNRPDVMQRKGLYPPPKNANPILGLEVA 72
            G  K +   L E  +P  +  E+L +   + V+ P  M+         +   ++G +VA
Sbjct: 13  DGKPKESDFELVEEELPPLKDGEVLCEALFLSVD-P-YMRPYSKRLNEGD--TMIGTQVA 68

Query: 73  GKIVDLGENTTHWNIGDEVCALVNGGGYAEYCLSHQGHTLPIPKGYNAIQAASLPESFF- 131
            K+++     + + +G  V A     G+  + +S  G   P      A     LP S   
Sbjct: 69  -KVIE--SKNSKFPVGTIVVA---SFGWRTHTVS-DGKDQPDLYKLPADLPDDLPPSLAL 121

Query: 132 --------TVWANLFQTANLRSGQTVLIHGGSSGIGTTAIQLASYFGATVYTTAKSEEKC 183
                   T +  L +    ++G+TV+++G +  +G+   Q+A   G  V   A S++K 
Sbjct: 122 GVLGMPGLTAYFGLLEICKPKAGETVVVNGAAGAVGSLVGQIAKIKGCKVIGCAGSDDKV 181

Query: 184 LACLKLGAKHAINYLKEDFLEILQKETQGRGIDIILDMVGAEYLNQHLTLLSKEGKLIII 243
               +LG     NY      E L KE    GID   D VG E+ +  L+ ++  G++ + 
Sbjct: 182 AWLKELGFDAVFNYKTVSLEEAL-KEAAPDGIDCYFDNVGGEFSSTVLSHMNDFGRVAVC 240

Query: 244 SFLGGNIATEINLNP---------IISKRITITG 268
               G+I+T  +  P         II K++ + G
Sbjct: 241 ----GSISTYNDKEPKKGPYVQETIIFKQLKMEG 270