1.2.1.29 gene PcALDH, cloning from RNA via RT-PCR, sequence comparisons and phylogenetic analysis, DNA and amino acid sequence determination and analysis, recombinant expression in Escherichia coli strain JM109 1.2.1.29 PcALDH1 and PcALDH2 expressed as C-terminal histidine-tagged proteins in Escherichia coli cells