TABLE 2.

Amino acid sequence identities in different regions of M and M-like proteins^a

Protein(s)	Amino acid identity (%)
	Signal peptide	First 50 amino acids	51st to repeat region	Repeat region to LPXTG
Mrp	98.0	43.2	91.6	96.1
Emm	81.8	15.0	41.4	87.9
Enn	96.2	27.3	56.2	93.7
Mrp + Emm + Enn	78.4			59.2

^aThe variability between protein families was too great in the regions from the first amino acids of the mature protein to the repeat regions to perform a meaningful multiple alignment across the three protein families.