[Model of reversible phage interaction with cell receptors].

A model of the bacteriophage behavior at the reversible adsorption stage was investigated. The ratio of concentration of long fibres bound with receptors on bacterial surface to the total concentration of the fibres was taken to be efficiency range of reversible adsorption. To determine this value the expressions for concentrations of all the intermediate forms of the long fibres binding were obtained. The relationship between reversible adsorption efficiency and concentrations of receptors with various values of corresponding constants was computed. The conditions providing different types of cooperativeness in the behavior of the baseplate elements in the process of reversible adsorption were analysed.