RPSBLAST alignment for GI: 254780290 and conserved domain: cd08296
>gnl|CDD|176256 cd08296, CAD_like, Cinnamyl alcohol dehydrogenases (CAD). Cinnamyl alcohol dehydrogenases (CAD), members of the medium chain dehydrogenase/reductase family, reduce cinnamaldehydes to cinnamyl alcohols in the last step of monolignal metabolism in plant cells walls. CAD binds 2 zinc ions and is NADPH- dependent. CAD family members are also found in non-plant species, e.g. in yeast where they have an aldehyde reductase activity. 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 (ADHs), 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 = 333
Score = 119 bits (300), Expect = 1e-27
Identities = 84/278 (30%), Positives = 123/278 (44%), Gaps = 41/278 (14%)
Query: 23 LAESPIPQPQKEEILIKVEAIGVNRPDVMQRKGLYPPPKNANPIL-GLEVAGKIVDLGEN 81
L E +P P E+LIKVEA GV D ++G P P + G EV G+I +GE
Sbjct: 15 LVERDVPLPGPGEVLIKVEACGVCHSDAFVKEGAMPGLS--YPRVPGHEVVGRIDAVGEG 72
Query: 82 TTHWNIGDEV-----------CA-------------LVNG----GGYAEYCLSHQGHTLP 113
+ W +GD V C V G GGYAEY L+
Sbjct: 73 VSRWKVGDRVGVGWHGGHCGTCDACRRGDFVHCENGKVTGVTRDGGYAEYMLAPAEALAR 132
Query: 114 IPKGYNAIQAASLPESFFTVWANLFQTANLRSGQTVLIHG-GSSGIGTTAIQLASYFGAT 172
IP +A +AA L + T + N + + + G V + G G G+G A+Q A+ G
Sbjct: 133 IPDDLDAAEAAPLLCAGVTTF-NALRNSGAKPGDLVAVQGIG--GLGHLAVQYAAKMGFR 189
Query: 173 VYTTAKSEEKCLACLKLGAKHAINYLKEDFLEILQKETQGRGIDIILDMVG-AEYLNQHL 231
++ +K KLGA H I+ KED E LQ+ G G +IL A+ ++ +
Sbjct: 190 TVAISRGSDKADLARKLGAHHYIDTSKEDVAEALQE--LG-GAKLILATAPNAKAISALV 246
Query: 232 TLLSKEGKLIIISFLGGNIATEINLNPIISKRITITGS 269
L+ GKL+I+ G + ++ +I R +I G
Sbjct: 247 GGLAPRGKLLILGAAGEPV--AVSPLQLIMGRKSIHGW 282