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. 2010 Jan 8;5(1):e8619. doi: 10.1371/journal.pone.0008619

Figure 3. Subunit composition of the BAM complex in C. crescentus.

Figure 3

(A) Outer membrane vesicles (800 µg protein) were solubilised with 0.75% (w/v) dodecyl-maltoside and the BAM complex immunoprecipitated with an antiserum recognizing the BamA subunit (lane 3) or preimmune serum (lane 4). Samples corresponding to 8 µg protein of total outer membranes (Lane 1), 8 µg protein of unbound fraction (Lane 2) and all of the material immunoprecipitated (Lane 3, 4) are shown. Asterisks indicate the IgG heavy and light chains, with the migration positions of the molecular markers shown in kDa. (B) Mass spectrometry data summarizing the identification of immunoprecipitated proteins (see Methods). In addition to the number of high confidence peptides identified by MS/MS data and sequence coverage; a MOWSE score is included, which is a probabilistic score that indicates the match of the experimental peptide precursor masses (peptide mass fingerprint) to the sequence of a candidate parental protein. Typically a MOWSE score >75 is considered as significant [64].