Information for Peptide: DDSPDLPK from ALBU_BOVIN

1. Biological Peptide

1.1 Native Sequence

    K.DDSPDLPK.L

1.2 Peptide Properties

Start Stop MW m/z for 2+ m/z for 3+ pI
131 138 885.41 443.71 296.14 3.93

1.3 Fragment Ion Table

AA b Ion Series b Ion Mass y Ion Series y Ion Mass
D b y
D b y
S b y
P b y
D b y
L b y
P b y
K b y

2. Synthetic Peptide

2.1 Synthetic (Internal Standard) Peptide Sequence

DESPDLPK (Modification: D2 to E )

2.2 Peptide Properties

MW m/z for 2+ m/z for 3+ pI
899.42 450.72 300.82 4.03

2.3 Fragment Ion Table

AA b Ion Series b Ion Mass y Ion Series y Ion Mass
D b y
E b y
S b y
P b y
D b y
L b y
P b y
K b y

2.4 Peptide Synthesis Report

Click to view/download synthesis report for DDSPDLPK

2.5 QqQ MS/MS

Transition Table:

Transition m/z of Transition Collision Energy
y4 472.276575 19.0
y5 569.329339 19.0
y6 656.361367 19.0

2.6 Calibration Curve of Standard

Description: A dilution series was done from 10 fmoles per injection to 0.2 fmoles. Detection was possible throughout the series.

 

Experiment Description: 10fmol of BSA standard was analysed on the TSQ. Sample was analyzed concurrently with synthetic internal standards

2.7 LC-MRM Analysis of Biological and Standard Peptides Illustrates Elution Times

2.8 Pseudo MS/MS Comparison of Transition Patterns for Biological/Standard Peptides