Figure 3.

Modular arrangements of sequences containing the NEAT domain. Protein codes are the same as those shown in Figure 1 and Table 1. The red line indicates the signal peptide; the blue box represents a transmembrane helix; the gray box indicates the Gram-positive anchor as detected by Pfam [15,16]; the black box represents a hydrophobic carboxy-terminal anchoring domain proposed for two Listeria sequences [23]. PKD is the polycystic kidney disease domain (present in PKD1, chitinases, and collagenases, among others), and LRR stands for leucine-rich repeat (ten copies detected in S_pyog, using the program REP [33,34]). The scale bar indicates the length in amino acids.