Aldehyde dehydrogenase AlkH (locus name P12693, EC=1.2.1.3) of the alkBFGHJKL operon that allows Pseudomonas putida to metabolize alkanes and the aldehyde dehydrogenase AldX of Bacillus subtilis (locus P46329, EC=1.2.1.3), and similar sequences, are present in this CD.