Serum Complement Flashcards
1
Q
Enzymatic activity
A
C1r C1s C2a Bb D
2
Q
Inflammatory activity
A
C4a
C3a
C5a
3
Q
MAC
A
C5b C6 C7 C8 C9
4
Q
Classic pathway
A
1 4 2 3 5-9 MAC
5
Q
Lectin
A
4
2
3
6
Q
Alternative
A
3 (spontaneous , slow, small amnts)
B
D
7
Q
MAC formation
A
After C3 C4b2a Amplification C4b2a3b 5-9 MAC
8
Q
Pathways converge at
A
C3
9
Q
Activation of classic pathway
A
IgM ***
IgG1,3
10
Q
Protein binding activity
A
C1q
C4b
C3b
11
Q
Anaphylatoxins
A
C5a>C3a>C4a
Stimulate cellular de granulation
Chemo tactic for neutrophils
12
Q
C1
A
Binds directly to pathogen or to Ab (indirect)
13
Q
C3 convertase
CP
A
C4b2a
14
Q
C5 convertase
CP
A
C4b2a3b
15
Q
Endogenous complement inhibitors
A
DAF
MCP
C1 inhibitor