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| Mutation Type | Field Isolates | Laboratory Strains |
|---|---|---|
| Deletions | 447 (2.5%) | 44 (0.3%) |
| Partial deletions | 549 (3.1%) | 61 (0.3%) |
| Nonsense (damaging)a | 394 (2.2%) | 24 (0.1%) |
| Nonsense (all) | 714 (4.1%) | 41 (0.2%) |
| Splice site | 1221 (7%) | 68 (0.4%) |
Percentages indicate the proportion of genes affected by each mutation type in at least one strain in 17,535 genes.
Nonsense mutations that prematurely truncate the protein by >25%.
