TABLE 2.
Effects of virion-coating envelopes on viral infectiona
| Virion-coating envelope | Infectivityb on cells:
|
Level of interferencec | |
|---|---|---|---|
| XC | XC-A-ST | ||
| MO | 7.1 × 106 | 6.1 × 106 | 1 |
| A | 1 × 107 | 6.4 × 103 | 1,369 |
| PROMO | 2.2 × 101 | 1 × 101 | NA |
| PROFR | <1 × 101 | <1 × 101 | NA |
| A1 | 8.4 × 106 | 2.3 × 103 | 3,138 |
| A2 | <1 × 101 | <1 × 101 | NA |
| A3 | 7.8 × 101 | 3 × 101 | NA |
| A4 | 5.7 × 106 | 8.1 × 103 | 605 |
| C2 | 7.6 × 106 | 5.7 × 105 | 11 |
| C3 | 5.4 × 106 | 4.7 × 105 | 10 |
| C4 | 2.4 × 106 | 1.7 × 105 | 12 |
| C5 | 9.4 × 106 | 2.7 × 104 | 299 |
a
Results are from one representative experiment (of six experiments).
b
Infectivity is expressed as the number of LacZ IU per milliliter of viral supernatant.
c
Interference levels were calculated according to the following equation: (titer on XC cells/titer on XC-A-ST cells) × (MO titer on XC-A-ST cells/MO titer on XC cells). NA, not applicable.