[Correlation between activity of the phosphoenol-pyruvate-dependable phosphotransferase system (PTS) and synthesis of adhesion P1 protein in Mycoplasma pneumoniae].
Three isogenous strains M. pneumoniae, i.e. virulent FH, avirulent FH400 and a revertant with a restored virulence (FHR) and isolated from an avirulent strain, were studied. The mechanism of hemadsorption and the ability to cause an infection in Syrian hamsters were found to be damaged in the avirulent strain. The detection of a specific mRNA by the RT-PCR method showed, apart from the loss of the main adhesin (protein P1), a lack of general components of the phosphoenol-pyruvat-dependable phosphotranspherase system (PTS), i.e. enzyme 1 and protein HPr. The recovery of virulence by passing an attenuated strain through animals with induced immunodeficiency correlated with the recovery of the activity of a gene encoding the P1 adhesion protein and with the onset of the PTS function activity. An analysis of published data was made use of to try to detect a correlation between the functional PTS activity in cell and virulence of M. pneumoniae.
Zigangirova
N A
NA
Hamaleya's Research Institute for Epidemiology and Microbiology, Russian Academy of Medical Sciences.
Gershanovich
V N
VN
Rakovskaia
I V
IV
Barkhatova
O I
OI
Gintsburg
A L
AL
D018829:Adhesins, Bacterial / Q000096:biosynthesis* / Q000235:genetics; D000818:Animals; D006224:Cricetinae; D004195:Disease Models, Animal; D005814:Genes, Viral; D008647:Mesocricetus; D009177:Mycoplasma pneumoniae / Q000737:chemistry / Q000201:enzymology* / Q000472:pathogenicity; D010731:Phosphoenolpyruvate Sugar Phosphotransferase System / Q000235:genetics / Q000378:metabolism*; D011019:Pneumonia, Mycoplasma / Q000382:microbiology*; D012333:RNA, Messenger / Q000032:analysis; D020133:Reverse Transcriptase Polymerase Chain Reaction; D014774:Virulence
D018829:Adhesins, Bacterial; D012333:RNA, Messenger; C035471:adhesin, Mycoplasma pneumoniae; D010731:Phosphoenolpyruvate Sugar Phosphotransferase System