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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