Table 1. The most intense characteristic peptides selected for the determination of viscumin.

AA sequence of identified peptides

Molecular weight of peptide (MW), Da

m/z, Da

Ion charge (z)

Ion signal intensity

DYVSSGSFSNEIPLLR

1782.879

892.454

2+

8.81×105

595.305

3+

8.14×104

VTHQTTGEEYFR

1466.679

489.904

3+

1.89×105

GAETHLFTGTTR

1289.636

645.824

2+

3.21×104

430.889

3+

9.59×105

SSLPFNGSYPDLER

1580.747

791.388

2+

1.32×106

528.249

3+

2.47×104