The expression of most bacterial genes is controlled at the level of transcription via promoter
control mechanisms that permit a graded response. However, an increasing number of …

A bacterial pathogen is a highly adapted microorganism which has the capacity to cause
disease. The mechanisms used by pathogenic bacteria to cause infection and disease …

GRAM-negative bacteria are known to produce two types of surface organelles: flagella,
which are required for motility and chemotaxis, and pili (fimbriae), which play a part in the …

Environmental pathogens move from ecological niches to mammalian hosts, requiring
adaptation to dramatically different environments. Microbes that disseminate farther …

Bacterial strains harboring the Yersinia pseudotuberculosis inv locus were analyzed in order
to investigate the mechanism of host cell penetration by an invasive pathogen. The inv locus …

Summary Type IV pili (T4P) are long, thin, flexible filaments on bacteria that undergo
assembly-disassembly from inner membrane pilin subunits and exhibit astonishing …

Pili of Neisseria gonorrhoeae and Neisseria meningitidis mediate binding of the bacteria to
human cell‐surface receptors. We found that purified pili bound to a 55‐to 60‐kDa doublet …

Pili prepared from Neisseria gonorrhoeae contain minor amounts of a 110 kd outer
membrane protein denoted PilC. The corresponding gene exists in two copies, pilC1 and …

Neisseria gonorrhoeae (Gc) pili undergo antigenic variation when the amino acid sequence
of the pilin protein is changed, aiding in immune avoidance and altering pilus expression …

This paper reports that the opaque and white phenotypes of Candida albicans constitute a
true high-frequency reversible transition system. The rDNA restriction fragment and …