TABLE 3.
The sbo and alb genes and the phenotypes conferred by their mutant alleles
| Gene | Product name or length (molecular mass)a | Homolog(s) (function) | Mutant phenotype
|
|
|---|---|---|---|---|
| Antilisterial activity (%)b | Immunity (MIC [μg/ml])c | |||
| sboA | Subtilosin | Bacteriocin | − (<0.5) | + (280)d |
| albA | 449 (51,493) | NirJ, PqqE, MoeA (cofactor synthesis) | − (<0.5) | + (280) |
| albB | 53 (6,116) | ? (immunity) | ± (6.5) | − (63) |
| albC | 240 (27,232) | ABC transporter, ATP-binding protein | ± (12.5) | − (96) |
| albD | 436 (49,516) | ? | ± (6.5) | − (150) |
| albE | 399 (44,611) | Processing protease | ± (12.5) | + (280) |
| albF | 427 (48,979) | Ubiquinol-cytochrome c reductase complex, Zn endoproteinase (N terminal only) | − (<0.5) | + (280) |
| albG | 234 (26,333) | ? (membrane protein) | ± (25) | + (280) |
a
Length is in amino acids, and molecular mass is in daltons.
b
Percentages of wild-type activity, based on arbitrary units per microgram of cellular protein, are shown in parentheses.
c
Defect in immunity observed in anaerobic incubation. MICs were measured under anaerobic conditions.
d
Value is for the sboA::neo-2 mutant.