In our work, we have compared the expression of the gene
encoding SEC in a laboratory medium and milk during the growth
of S. aureus. Additionally, we measured the expression of five other
enterotoxin genes (sea, seg, seh, sek, sel) and eight regulation genes
(sarA, saeS, codY, srrA, rot, hld, agrA, sigB). The sec expression was
determined at both the mRNA and protein level.