Information for Peptide: EIAEAYLGGK from HSP72_HUMAN

1. Biological Peptide

1.1 Native Sequence

    K.EIAEAYLGGK.V

1.2 Peptide Properties

Start Stop MW m/z for 2+ m/z for 3+ pI
130 139 1049.54 525.78 350.85 4.53

1.3 Fragment Ion Table

AA b Ion Series b Ion Mass y Ion Series y Ion Mass
E b y
I b y
A b y
E b y
A b y
Y b y
L b y
G b y
G b y
K b y

2. Synthetic Peptide

2.1 Synthetic (Internal Standard) Peptide Sequence

EIAEAYL(C6N1)GGK (Modification: Stable isotope on L7 (U-13C, 15N) )

2.2 Peptide Properties

MW m/z for 2+ m/z for 3+ pI
1056.56 529.29 353.19 4.53

2.3 Fragment Ion Table

AA b Ion Series b Ion Mass y Ion Series y Ion Mass
E b y
I b y
A b y
E b y
A b y
Y b y
L b y
G b y
G b y
K b y

2.4 Peptide Synthesis Report

Click to view/download synthesis report for EIAEAYLGGK

2.5 QqQ MS/MS

Transition Table:

Transition m/z of Transition Collision Energy
y4 381.24039 23.0
y5 544.30372 23.0
y6 615.34083 23.0
y7 744.38342 23.0
y8 815.42054 23.0

2.6 Calibration Curve of Standard

Description: NONE

 

Experiment Description: Cells from AML line U937 were lysed in 8M urea/ 100mM ammonium bicarbonate buffer on ice. The equivalent of 100,000 cells were loaded onto a SDS gel. The protein of interest was excised and ingel digestion with trypsin was performed after reduction and alkylation with TCEP and IAA. 1/4 of the resulting digest was then analyzed on a Thermo Scientific TSQ mass spectrometer.

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