Ka. Krebes et al., PHOSPHORYLATION OF MYCOPLASMA-PNEUMONIAE CYTADHERENCE-ACCESSORY PROTEINS IN CELL-EXTRACTS, Journal of bacteriology, 177(15), 1995, pp. 4571-4574
A cell-free system was used to characterize the phosphorylation of Myc
oplasma pneumoniae proteins HMW1 acid HMW2, which are involved in the
adherence of this organism to human tracheal epithelium during infecti
on. The pH and cation requirements for phosphorylation of HMW1 and HMW
2 were determined, and the effects of glycolytic intermediates, cyclic
AMP, and eukaryotic kinase-phosphatase inhibitors and stimulators on
this process were examined. Phosphoamino acid analysis identified seri
ne as the major phosphate acceptor for both HMW1 and HMW2 in this syst
em.