Table 1. The identification of the QKQELDELSTNIR peptide and its fragments by the PepNovo+. The peptide fragments were obtained by Edman degradation. Red color highlighted amino acid residues determined by mass difference of peptides. (the QKQE sequence determined for the N-terminus of the peptide). The numbers designate the residual mass minus the mass of known amino acid residues up to this position.

Peptid MH+ (Da) res. 1 res. 2 res. 3 res. 4 res. 5 res. 6 res. 7 res. 8 res. 9 res. 10 res. 11 res. 12 res. 13
P1 1626.73 52.91 180.97 309.07 E L D E L S T N L R
P2 1626.73 52.91 180.97 309.07 437.13 L D E L S T N L R
P3 1626.73 52.91 180.97 309.06 437.12 566.17 D E L S T N L R
P4 1573.82 Q K Q E L D E L S T N L R
P5 1573.81 -0.003 128.06 Q E L D E L S 402.25 288.21 175.12 19.02
P6 1573.82 -0.003 128.06 Q E L D E L S T N L R
P7 1445.76   K Q E L D E L 503.29 402.24 288.2 175.12 19.01
P8 1445.76   K Q E L D E L S 402.24 288.2 175.12 19.01
P9 1445.77   K Q E L D E L S T 288.21 175.12 19.02
P10 1445.76   K Q E L D E L S T N L R
P11 1317.62     Q E L D E L S 401.79 287.75 174.66 18.56
P12 1189.61       E L D E L S T 288.21 175.12 19.02
P13 1060.56         L D E L S T N 175.12 19.02
P14 1047.6         -12.962 102.07 E L S T N L R