Figure. 3: Montage 2-DE gel views of proteins changed in abundance in the cell envelope comparing strains P100 (left panel), HIP5827 (middle panel) and VP32 (right panel). For descriptions of the 2-DE analysis, see legend of Fig. 1 and the Methods section. pI values are marked at the bottom of the six zoomed-in gel images. Mr values are marked on the left side, separately in rows A and B. Seven protein spots showed significant abundance differences (spot No. 59-66). SpA: S. aureus immunoglobulin G-binding protein A; LytM: peptidoglycan hydrolase LytM.