FIG 4.

Molecular organization of gene clusters which received more than two Tn5 insertions and are correlated with magnetosome mutant phenotypes. (A to D) Gene clusters are delineated by locus tag ranges (in red above each cluster, corresponding to the MSR-1 v2 genome, MGMSRv2__[number]; “c” means encoded on complementary strand). Open reading frames are labeled either with gene name or with corresponding locus tags of the MSR-1 v2 genome (number only) or the R3/S1 genome (MSR1L_[number]). Tn5 insertion sites are indicated by arrows (green, WTmag; gray, not magnetically characterized; pink, clones at same hit position present as WTmag or Wmag; ?, unknown insertion position) and arrowheads (pink, Wmag). Deletion ranges in deletion mutants are indicated by blue bars above the respective cluster. Availability of TEM images for transposon clones is indicated as well as the respective magnetic phenotype of the constructed null mutants.