Table S1.

Sequences and molecular masses of tryptic peptides from ribosomal proteins and RlmE used for SILAC analyses

Ribosomal protein	Peptides				m/z
	Sequence	Position	Mass, Da	z	Nonlabeled	Labeled
L3	NLLLVK	185–190	698.47	1	699.48	707.50
	AIQVTTGAK	47–55	887.51	2	444.76	448.77
	VDVTGTSK	107–114	805.42	2	403.72	407.73
L5	LHDYYK	4–9	837.40	1	838.41	846.43
	SVAGFK	73–78	607.33	1	608.34	616.36
	GLSAK	116–120	474.28	1	475.29	483.30
L6	APVVVPAGVDVK	7–18	1,149.68	2	575.85	579.85
	INGQVITIK	19–27	984.60	2	493.31	497.31
	TLNDAVEVK	36–44	987.52	2	494.77	498.78
L7/12	DLVESAPAALK	86–96	1,112.61	2	557.31	561.32
	ALEEAGAEVEVK	110–121	1,243.63	2	622.82	626.83
	DDAEALK	102–108	760.36	1	761.37	769.38
L9	RAELEAK	51–57	815.45	2	408.73	412.74
	NFLVPQGK	28–35	901.52	1	902.51	910.53
	VANLGSLGDQVNVK	9–22	1,412.76	2	707.39	711.40
L10	ALNLQDK	2–8	800.44	2	401.23	405.23
	QAIVAEVSEVAK	9–20	1,242.68	2	622.35	626.36
	GVTVDK	32–37	617.34	1	618.35	626.36
L11	SFTFVTK	66–72	828.44	1	829.45	837.46
	AQLQEIAQTK	104–113	1,128.61	2	565.32	569.33
	TPPAAVLLK	73–81	908.57	2	455.29	459.30
L13	DWYVVDATGK	14–23	1,152.55	2	577.28	581.29
	VYYHHTGHIGGIK	73–85	1,480.76	2	741.39	745.40
	VIEIAVK	100–106	770.49	2	386.25	390.26
L14	YAGVGDIIK	32–40	934.51	1	935.53	943.54
	GDVLK	55–59	530.31	1	531.32	539.33
	KGDVLK	54–59	658.40	1	659.41	675.44
L15	LNTLSPAEGSK	3–13	1,115.58	2	558.80	562.81
	AAIEAAGGK	133–141	786.42	2	394.22	398.23
	GIGSGLGK	22–29	687.39	1	688.40	696.41
L16	GLAQGTDVSFGSFGLK	19–34	1,582.80	2	792.41	796.41
	GNVEYWVALIQPGK	87–100	1,572.83	2	787.42	791.43
	TTFVTK	128–133	695.39	1	696.39	704.41
L17	VVEPLTITLAK	47–57	1,182.72	2	541.85	545.85
	TRDNEIVAK	70–78	1,044.56	2	523.78	527.74
	DNEIVAK	72–78	787.41	1	788.42	796.43
L18	DAAAAVGK	69–76	701.37	1	702.38	710.39
	AIAEQLK	57–63	771.45	2	386.73	390.74
	KLQELGATR	17–25	1,014.58	2	508.30	512.31
L19	SNIIK	2–6	573.35	1	574.36	582.37
	VWVVEGSK	30–37	902.49	1	903.50	911.51
	QLEQEQMK	7–14	1,032.49	2	517.25	521.26
L20	FINGLK	79–84	690.41	1	692.40	700.41
	VAFTALVEK	104–112	976.56	1	977.57	985.59
	QNGISYSK	71–78	895.44	2	449.22	453.23
L21	MYAVFQSGGK	1–10	1,086.52	2	544.27	548.27
	IGVPFVDGGVIK	49–60	1,199.69	2	600.85	604.86
	QWFTDVK	91–97	922.45	2	462.24	466.24
L22	AAVLVK	43–48	599.40	1	600.41	608.42
	IFVDEGPSMK	74–83	1,121.54	2	561.78	565.79
	KAAVLVK	42–48	727.50	1	728.50	744.53
L23	SNTIVLK	27–33	773.46	2	387.74	391.75
	DATKAEIK	37–44	874.48	2	438.25	446.27
	APHVSEK	13–19	766.40	2	384.21	388.21
L24	DDEVIVLTGK	8–17	1,087.58	2	544.80	548.80
	NVLSSGK	27–33	703.39	1	704.40	712.41
	VIVEGINLVK	34–43	1,082.67	2	542.34	546.35
L25	EAPLAIELDHDK	35–46	1,349.68	2	675.85	679.86
	FPAIIYGGK	26–34	964.54	2	483.27	487.28
	VMNMQAK	47–53	820.39	2	411.20	415.21
L27	DHTLFAK	56–62	830.43	2	416.22	420.23
L28	SHALNATK	19–26	840.45	2	421.23	425.24
	FWVESEK	38–44	923.44	2	462.73	466.74
	ARGEKY	73–78	722.37	2	362.19	366.20
L34	LTVSK	42–46	546.34	1	547.35	555.36
L35	HILTK	31–35	610.38	1	611.39	619.40
RlmE	LDEIQQSDK	39–47	1,074.52	2	538.27	542.28
	DVLAPGGSFVVK	153–164	1,187.66	2	594.83	598.84
	VRKPDSSR	187–194	943.52	2	472.77	476.78