Identification of lipopeptides in Bacillus megaterium by two-step ultrafiltration and LC–ESI–MS/MS

Ma, Yunxiao; Kong, Qing; Qin, Chong; Chen, Yulin; Chen, Yujie; Lv, Ruihuan; Zhou, Guanghui

doi:10.1186/s13568-016-0252-6

AMB Express

Table 1 Assignment of the structures of lipopeptides by LC–ESI–MS/MS in this study

From: Identification of lipopeptides in Bacillus megaterium by two-step ultrafiltration and LC–ESI–MS/MS

Peak	Mass (M/S)	Rt (min)	Family	Assignment
1	994	6.50	Surfactin	C₁₂[M + H]⁺
2	1008	6.98		C₁₃[M + H]⁺
3	1022	8.05		C₁₄[M + H]⁺
4	1036	9.12		C₁₅[M + H]⁺
5	1050	9.38		C₁₆[M + H]⁺
6	994	6.38		C₁₂[M + H]⁺
7	1008	6.94		C₁₃[M + H]⁺
8	1022	8.17		C₁₄[M + H]⁺
9	1036	8.63		C₁₅[M + H]⁺
10	1050	9.63		C₁₆[M + H]⁺
11	994	6.42		C₁₂[M + H]⁺
12	1008	6.89		C₁₃[M + H]⁺
13	1022	8.11		C₁₄[M + H]⁺
14	1036	8.69		C₁₅[M + H]⁺
16	1008	8.40		C₁₄[M + H]⁺
17	1022	9.35		C₁₅[M + H]⁺
18	1008	8.46		C₁₄[M + H]⁺
19	1022	9.22		C₁₅[M + H]⁺
20	1008	8.40	Surfactin	C₁₄[M + H]⁺
21	1022	9.16		C₁₅[M + H]⁺
22	1008	6.89		C₁₂[M + H]⁺
23	1050	4.68	Esperin	C₁₆[M + H]⁺
24	1050	5.12	Esperin	C₁₆[M + H]⁺
25	1012	4.81	Surfactin	Linear C₁₂[M + H]⁺
26	1026	5.26		Linear C₁₃[M + H]⁺
27	1040	5.87		Linear C₁₄[M + H]⁺
28	1054	6.39		Linear C₁₅[M + H]⁺
29	1068	7.17		Linear C₁₆[M + H]⁺
30	1026	5.53	Surfactin	Linear C₁₄[M + H]⁺
31	1031	6.98	Bacillomycin D	C₁₄[M + H]⁺
32	1045	7.95	Bacillomycin D	C₁₅[M + H]⁺
33	1451	10.94	Fengycin A	C₁₅[M + H]⁺
34	1465	10.82		C₁₆[M + H]⁺
35	1479	12.63		C₁₇[M + H]⁺
36	740	12.69		C₁₇[M + 2H]²⁺
37	1493	13.01		C₁₈[M + H]⁺
38	747	15.09		C₁₈[M + 2H]²⁺
39	1479	12.71	Fengycin B	C₁₅[M + H]⁺
40	740	12.61		C₁₅[M + 2H]²⁺
41	1493	12.92		C₁₆[M + H]⁺
42	747	13.15		C₁₆[M + 2H]²⁺
43	1467	8.66	Fengycin A	Linear C₁₅[M + H]⁺
44	1481	8.83		Linear C₁₆[M + H]⁺
45	1495	12.36		Linear C₁₇[M + H]⁺
46	1495	12.36	Fengycin B	Linear C₁₅[M + H]⁺
47	1509	13.87	Fengycin B	Linear C₁₆[M + H]⁺

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