Fimbrae Flashcards
1
Q
Type I Pilus
A
- P-pili
- repeating structural protein units
- genes clustered in operon
- operon encodes 3 proteins
- major structural units
- chaperon to fold structural proteins
- usher protein to polymerize proteins
2
Q
Type I pili in ______
A
E.coli -mannose binding
Salmonella typh. -increas host range (14 operons)
3
Q
Type I pili tip?
A
-tip adhesin allows specificity
4
Q
F1 pili found in _______
A
Yersina pestis
5
Q
F1 pili made of__
A
Caf1 proteins
6
Q
F1 pili is a ________
A
Capsular antigen
7
Q
F1 pili produced when?
A
37deg C
8
Q
Caf1 form?
Allows
A
- tangled in linear fashion
- allows variation
9
Q
Type IV pili are known for?
A
Horizontal gene transfer
10
Q
Type IV pili allow bacteria to undergo___________. ____________
A
Twitching motion
11
Q
Type IV pili found in
A
Neisseria gonorrhoea
Pseudomonas aeruginosa
Vibrio cholera
12
Q
Type IV pili simulate ______ in P.aeruginosa
A
Psl gene activation
- EPs secreted and forms biofilms
- immune evasion
