<p>Sequence positions are indicated for each gene cluster. All but cluster A are located on the chromosome. Some DNA segments are omitted for clarity (double slashes), with their size indicated in kb. Gene arrows are drawn according to functional category: transport (dots); regulation, sensing or signaling (stripes); unknown (white). Protein products more abundant in cultures grown with chloromethane (C labeled circles) or with methanol (M labeled circles) are indicated, with black or white symbols used for those proteins observed exclusively or more abundant in one condition, respectively. Proteins homologous to induced genes, or proteins more abundant in a previous study of <i>M. extorquens</i> DM4 grown with dichloromethane compared to methanol <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0056598#pone.0056598-Muller1" target="_blank">[16]</a>, are indicated with circles labeled by a “D”.</p
