Protein N-glycosylation in the airways of long-term smokers with or without COPD differs from never-smokers

Vignesh Venkatakrishnan, Kristina A. Thomsson, Médea Padra, Anders Andersson, Ingemar Qvarfordt, Sara Tengvall, Bettina Levänen, Karin Christenson, Johan Bylund, Niclas G. Karlsson,Anders Lindén, Sara K. Lindén, Manuscript

Retention Time	Recorded Precursor Mass	Structure
11.13	840.8 [M -2H]2-
15.73	759.8 [M -2H]2-
17.39	856.33 [M -2H]2-
17.97	832.8 [M -2H]2-
18.17	749.3 [M -1H]1-
18.35	1038.8 [M -2H]2-
18.77	860.3 [M -2H]2-
18.9	941.3 [M -2H]2-
19.35	698.3 [M -2H]2-
19.47	1073.4 [M -1H]1-
19.52	1111.9 [M -2H]2-
19.54	994.83 [M -2H]2-
19.6	779.3 [M -2H]2-
19.69	1140.42 [M -2H]2-
20.44	965.9 [M -2H]2-
20.57	911.25 [M -1H]1-
20.65	731.25 [M -2H]2-
20.72	820.3 [M -2H]2-
21.11	895.3 [M -1H]1-
21.16	812.4 [M -2H]2-
21.26	1038.8 [M -2H]2-
21.29	1111.4 [M -2H]2-
21.57	1235.4 [M -1H]1-
21.77	893.33 [M -2H]2-
21.8	1184.33 [M -2H]2-
22.4	1111.4 [M -2H]2-
23.02	1057.3 [M -1H]1-
24.23	1184.33 [M -2H]2-