. 2019 Jan 21;17(1):71. doi: 10.3390/md17010071

Table 2.

Novel conotoxin precursors identified in the four venom duct sections of C. tulipa by LC-MS/MS at 99% confidence.

¹ Section	Matched Precursor (S2)	MS/MS Fragment	PTM	Precursor (Da)	z
D	Tu0051/T1.2	`SNPACAGNNPH`	Ala->Gly@5	1169.430	2
D	Tu316	`AIASSVVTPGSSMK`		1333.691	2
D	Tu068	`MINAETQTR`		1062.510	2
D	Tu065	`NCMLINVQQLGLR`	Asn -> Thr @1, carbamidometh@2	1544.830	2
D	Tu020	`MLENLREAEVK`	Carboxy(E)@3	1374.681	3
DC	Tu076	`ADRDTDPDDENPR`	Oxidation(P)@7	1530.618	3
DC	Tu056/T1.3	`VKDFK`		635.364	2
DC	Tu316	`AIASSVVTPGSSMK`		1333.691	2
DC	Tu065	`NCMLINVQQLGLR`		1524.820	2
DC	Tu068	`MINAETQTR`		1062.500	2
DC	Tu314	`DLADTRYR`	Arg -> Ser @ 6	939.4289	2
DC	Tu320	`AAFHMFYFDQFSK`		1637.730	3
PC	Tu298/T6.4	`DGTGQCAPK`	Gln->Asp@5, Carbamydomethyl @ 8, oxid(P)@10,	1190.560	3
PC	Tu297/T6.4	`VRDNR`		658.351	2
PC	Tu032/T6.1	`DALKNLK`		800.457	2
PC	Tu035/TVIA	`SCNPYSR`	Carbamydometh@2, Deamidated(N)@3, Oxidation(P)@4,	899.342	2
PC	Tu274/TVIA	`ALKNLKDSRGGSAR`	Deamidated(R)@8.	1474.787	2
PC	Tu314	`VVTSGSSLQGTSLK`		1362.730	2
PC	Tu075	`VFIYGGCDGNANR`		1428.640	2
PC	Tu316	`AIASSVVTPGSSMK`		1333.690	2
PC	Tu059/conopressin-T	`NLDNIEGH`		910.413	2
PC	Tu296/T6.4	`VRDNR`		658.340	2
PC	Tu314	`GIASKVVTSGSSLQ`		1332.830	2
PC	Tu030	`VPEDASNLQGFDQG`		1475.780	2
P	Tu030	`LPFNNVEGATNDLG` `QFEPSAENEDGKFRFF`		1475.650	2
P	Tu076	`LTLSAPK`	Deam @ 3	728.443	2
P	Tu075	`AAFHMFYFDQFSK`		1637.735	3
P	Tu059/conopressin-T	`NLDNIEGH`		910.414	2
P	Tu314	`FALKNPVLQINSGVTTSTPTGIEPGK`	Deamidated(N)@5; Deamidated(N)@11; Ser->Gly@12	2640.405	3
P	Tu314	`AVRAIASSVVTPGSSMKGGPLK`		2112.360	3
P	Tu314	`VVTSGSSLQGTSLKDLADTRYRVTCAIQVENWTK`		2321.149	3

¹ Distal (D), Distal Central (DC), Proximal Central (PC) and Proximal (P).