Table 2.
Inhibitor/Antibody | Target of reagent | Stage of entry blocked3. | Correlation with Macrophage-tropism (p Values) |
Q4120 | CD4 | env: CD4 interactions | <0.0001** |
sCD4 | gp120, CD4bs | env: CD4 interactions | <0.0001** |
PRO 542 (IgG-CD4) | gp120, CD4bs | env: CD4 interactions | <0.0001** |
BMS-378806 | gp120, CD4bs channel1. | env: CD4 interactions | 0.0002** |
b12 | gp120, overlapping CD4bs2. | 0.6843 | |
TAK779 | CCR5 | env: CCR5 interactions | 0.7964 |
SCH350581 | CCR5 | env: CCR5 interactions | 0.7587 |
2D7 | CCR5 | env: CCR5 interactions | |
2G12 | gp120 glycan | env: CCR5 interactions | 0.0138* |
T20 | gp41 conformational changes | gp41 conformational changes | 0.7061 |
2F5 | gp41 membrane proximal region | gp41 conformational changes4. | 0.3741 |
4E10 | gp41 membrane proximal region | gp41 conformational changes4. | 0.3502 |
1. BMS-378806 binds to a hydrophobic channel deep in the channel targeted by CD4 [42].
2. Mab b12 binds an epitope that overlaps the CD4bs [57].
3. Mab 2G12 binds to a glycan on gp120. 2G12 blocks env:CCR5 interactions but may also block earlier stages of entry [73].
4. Mabs 2F5 and 4E10 block gp41 conformational changes but may also block earlier stages of entry [73].
* Significant (p ≤ 0.05).
** Highly significant (p ≤ 0.01)