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Table 3 Sequences of WAP tryptic peptides identified by LC-MS/MS in the milk of a C. bactrianus

From: The main WAP isoform usually found in camel milk arises from the usage of an improbable intron cryptic splice site in the precursor to mRNA in which a GC-AG intron occurs

ID UniProt accession Species Peptide sequence aa residue Mr Spectra
Start Stop
1 P09837 C. dromedarius LAPALSLPGQAVCPELSSSEDNACIISCVNDESCPQGTK 1 39 4174.90 1
2 P09837 C. dromedarius LSLPGQAVCPELSSSEDNACIISCVNDESCPQGTK 5 39 3822.69 1
3 P09837 C. dromedarius IISCVNDESCPQGTK 25 39 1707.77 1
4 P09837 C. dromedarius VNDESCPQGTK 29 39 1234.54 2
5 P09837 C. dromedarius SCTVPLM VSSP EPVLK 49 64 1743.90 6
6 P09837 C. dromedarius SCTVPLM VSSP EPVLKDGR 49 67 2072.05 3
7 P09837 C. dromedarius PLM VSSP EPVLKDGR 53 67 1624.87 1
8 P09837 C. dromedarius DGRCPWVQTPLTAK 65 78 1628.82 1
9 P09837 C. dromedarius CPWVQTPLTAK 68 78 1300.67 11
10 P09837 C. dromedarius HCLEKNDCSR 79 88 1318.56 2
11 P09837 C. dromedarius HCLEKNDCSRDDQCEGNK 79 96 2264.91 1
12 P09837 C. dromedarius HCLEKNDCSRDDQCEGNKK 79 97 2393.00 1
13 P09837 C. dromedarius KCCFSSCAMR 97 106 1322.51 1
14 P09837 C. dromedarius CCFSSCAMR 98 106 1161.39 1
15 P09837 C. dromedarius CLDPVTEDSFQ 107 117 1310.56 13
16 S9XKL5 C. ferus SCTVPLMEPVLK 130 141 1389.71 1
  1. The table is classified by the start aa residues from the N-terminal sequence. Obtained data matches against UniprotKB taxonomy cetartiodactyla (SwissProt + Trembl) database. Molecular masses (Mr) of peptides are expressed in Da. Spectra indicates the number of spectra permitting the identification of peptides. Charge corresponds to the number of charges (z) of multi-charged ions precursors having given the MS/MS spectra. Tryptic peptides connecting the DI and DIIa domains of the protein, including or not the tetrapeptide VSSP, are in bold. Numbering of the C. ferus peptide sequence is from KB016488 Genomic DNA Translation