Protein patterns of gel-entrapped Escherichia coli cells differ from those of free-floating organisms |
| |
Authors: | Perrot F Hébraud M Charlionet R Junter G A Jouenne T |
| |
Affiliation: | UMR 6522 CNRS, Faculté des Sciences de Rouen, Mont-Saint-Aignan, France. |
| |
Abstract: | The two-dimensional electrophoretic patterns of cellular proteins from gel-entrapped Escherichia coli cells were compared to those of exponential- and stationary-phase free-floating organisms. The amounts of several proteins in immobilized cells were significantly different from those in free bacteria. Immobilized organisms rapidly produced a high level of dipeptide permease and a single-strand binding protein, and progressively accumulated an aldehyde dehydrogenase. Immobilization also induced a decrease in the levels of two proteins, i.e., the YFID protein and a DNA-binding, stationary-phase protein. The possible role of these proteins in the high resistance of immobilized bacteria to stresses is discussed. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|