FIG. 4.

Genetic comparison of polyglutamate synthesis operons. Proposed standardized genetic nomenclature (A). The nomenclatures previously published for the PGA synthesis systems for other PGA-producing Bacillus and Staphylococcus species are indicated on the schematic representation of the genetic organization of the operons. The bottom line is the proposed nomenclature. Protein sequence alignments of CapA equivalents (B) or CapE equivalents (C). ClustalW and Boxshade programs were used. B.s., B. subtilis; B.l., B. licheniformis; B.a., B. anthracis.