Additional file 11.

Loss of the lantibiotic gene cluster from B. longum DJO10A-JH1. (A) Detection of DJO10A specific gene clusters in B. longum DJO10A and its fermentation adapted isolate DJO10A-JH1 by PCR. M, 1 kb DNA ladder (Invitrogen); lane 1, unique region 15; lane 2, unique region 6; lane 3, unique region 9; lane 4, unique region 11; lane 5, unique region 5; lane 6, unique region 7; lane 7, unique region 12; lane 8, 16S rRNA partial gene. The red arrow indicates the lantibiotic encoded unique region 12 that is missing from strain DJO10A-JH1. (B) Southern blot analysis using a lanM probe and the EcoRI-digested genomes of B. longum strains DJO10A and DJO10A-JH1. The 1.7 kb EcoRI band containing lanM is indicated with an arrow.

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Lee et al. BMC Genomics 2008 9:247   doi:10.1186/1471-2164-9-247