Domain Analysis and Isolation of Coniferyl Alcohol Dehydrogenase Gene from Pseudomonas nitroreducens Jin1

Aim: The Aim of present study is to analyse conserved functional Short Dehydrogenase Reductase (SDR) domain from bacteria. Based on the domain analysis selection of coniferyl alcohol dehydrogenase gene for isolation from Pseudomonas nitroreducens Jin1.

Place and Duration of Study: Department of Biotechnology, Punjabi University, Patiala. From July, 2012 to November, 2012.

Methodology: Bioinformatics tools were used to analyse various calA genes from bacteria based on the presence of conserved domain in members of SDR family. Based on insilico analysis, Pseudomonas nitroreducens Jin1 calA was selected. PCR was used for amplification of the gene from the genome of Pseudomonas nitroreducens Jin1.

Result: Multiple sequence alignment results for conserved domains amongst members of SDR family identified presence of all domains of Short Dehydrogenase Reductase members in Pseudomonas nitroreducens Jin1 calA gene. Amongst the various sequences compared the P. nitroreducens Jin1, calA was found to be the smallest in size. The locus of calA in the genome resides at 103513-104280 bases. It was amplified from the genome of Pseudomonas nitroreducens Jin1. The calA gene that was amplified is of size 768bp.

Conclusion: calA gene isolated from Pseudomonas nitroreducens Jin1 is a small gene with all the functional domains and can be used for biotransformation of coniferyl alcohol to coniferyl aldehyde.