Table 1.

Motif analysis for the identified lysine-acetylated peptides.

Motif	Motif score	Foreground		Background		Fold increase
		Matches	Size	Matches	Size
…R……KacK………	24.81	104	4,926	322	69,627	4.57
.K…….KacK………	24.2	127	4,822	459	69,305	3.98
……….KacR………	16	826	4,695	3,860	68,846	3.14
…K……KacK………	22.66	111	3,869	443	64,986	4.21
……….KacK………	16	602	3,758	4,213	64,543	2.45
……….Kac.K….…	16	511	3,156	4,411	60,330	2.21
……….KacS………	16	451	2,645	4,417	55,919	2.16
……….Kac.K….…	16	338	2,194	3,870	51,502	2.05
……….KacN………	16	305	1,856	2,426	47,632	3.23
……….Kac.R….…	16	272	1,551	2,481	45,206	3.2
……….KacT………	16	254	1,279	2,726	42,725	3.11
……….KacH………	16	218	1,025	1,274	39,999	6.68
……….Kac.D….…	16	139	807	2,199	38,725	3.03
……….KacF………	16	103	668	1,976	36,526	2.85
……….Kac.E….…	16	113	565	2,940	34,550	2.35

K^ac represents the acetylated lysine and “.” represents any amino acid.