. Author manuscript; available in PMC: 2020 Apr 14.

Published in final edited form as: Biochem J. 2019 Dec 23;476(24):3817–3834. doi: 10.1042/BCJ20190743

Table 1.

Sites of crosslinking involving Lys and C-terminal Asn residues in human lens proteins

Peptide A	Peptide B	[MH]+exp	[MH]+cal	error in ppm
AQP0 (Asn 246): GAKPDVSN^*	AQP0 (Lys 228): LK^*SISER	1601.849	1601.849	0.15
AQP0 (Asn 246): GAKPDVSN^*	AQP0 (Met1): M^*WELR	1503.7221	1503.7260	2.59
αA (Asn 101):HN^*	αB (Lys 174): EEKPAVTAAPK^*K	1520.810	1520.807	2.28
αA (Asn 101):HN^*	αB (Lys 150): K^*QVSGPER	1152.574	1152.576	0.192
βB2 (Asn 205): GAFHPSN^*	βA4 (Lys 118): LTIFEQENFLGK^*K	2278.1503	2278.1502	0.4

AQP0 (Asn 246): GAKPDVSN^*	AQP0 (Lys 238): LSVLK^*GAKPD	1796.973	1796.975	1.44

Asterisks indicate the residues that are involved in crosslinking. All masses listed are monoisotopic masses.