MS/MS spectrum  
 
 
 SRM transitions  
Transition ID Precursor m/z Precursor charge Fragment m/z Relative intensity
SFQQSSLSR.2.y6.1 541.267 2 677.358 100
SFQQSSLSR.2.y5.1 541.267 2 549.299 99
SFQQSSLSR.2.y7.1 541.267 2 805.416 92
SFQQSSLSR.2.y1.1 541.267 2 175.119 32
SFQQSSLSR.2.y4.1 541.267 2 462.267 32
SFQQSSLSR.2.y2.1 541.267 2 262.151 29
SFQQSSLSR.2.y3.1 541.267 2 375.235 16