Flashcards in VirAdAnt Deck (6)
What two factors does adherence require?
What are the two processes of adhesion?
1. pilus (fimbria)-for attachment at a distance
2. non-fimbrial adhesion (outer membrane protein)-for intimate attachment
Are there different pili for different environments?
gonorrhea (vag vs rectum)
e coli ( bladder vs kidney)
What is antigenic diversity of pilis?
-varying adhesion composition to avoid immune system
What is pilE, pilS?
pilE-expressed due to promoter
-antigenicity depends upon the sequence of pilE
pilS-silent genes due to lack of promoter and imcomplete