TABLE 2.

Normalized fractions of methylated peptides in OmpB(AN) and (K) catalyzed by RT0776, RT0776ΔN, RP789, and RP789ΔN

The normalized fractions of unmethylated, mono-, di-, and trimethyllysines were calculated from sums of the numbers of PSM for all lysine residues as described under “Materials and Methods.” Supplemental Tables S2 and S3 show the numbers of PSM of all lysyl residues as unmethylated, mono-, di-, and trimethyllysines in OmpB(AN) and (K) that were catalyzed by RT0776, RP789, RT0776ΔN, and RP789ΔN.

	Monomethylation	Dimethylation	Trimethylation	No methylation
RT0776	0.093	0.001	0	0.883
RT0776ΔN	0.324	0.024	0.011	0.641
RP789	0.237	0.015	0.015	0.734
RP789ΔN	0.313	0.034	0.036	0.617