Fig. 3
From: Bacillus anthracis S-layer protein BslA binds to extracellular matrix by interacting with laminin
The BslA ligand is a protein; its sugar components are not involved in binding. HeLa cells were treated biochemically (see Methods) and used for binding studies. Quantification of cell surface-bound BslA(260–652) protein on HeLa cells by flow cytometry. The percentage of mean fluorescence in relation to untreated control cells is shown. a Cells treated with protease; b cells treated with PNGase F or sodium periodate. Cells without BslA(260–652) protein incubated were used as negative controls