FIG. 4.

The two Csc Clusters in L. monocytogenes. The first line shows a characteristic four-component Csc cluster, with the predicted surface-anchoring domain of Csc proteins indicated below. The two L. monocytogenes Csc clusters are schematically represented, with genes corresponding to Csc components indicated in blue (CscA like), yellow (CscB like), green (CscC like), and red (CscD like), respectively. The number of amino acids (AA) in each gene product is indicated. Cluster 2 does not contain any cscD-like gene. PKD, PKD repeats; DUF 919 (Pfam PF06030), domain of unknown function. (Adapted from reference 168 with permission.)