Information for Peptide: LASQLGVYR from BCR_HUMAN
1. Biological Peptide
1.1 Native Sequence
K.LASQLGVYR.A
1.2 Peptide Properties
| Start | Stop | MW | m/z for 2+ | m/z for 3+ | pI |
|---|---|---|---|---|---|
| 584 | 592 | 1005.56 | 503.79 | 336.19 | 8.75 |
1.3 Fragment Ion Table
| AA | b Ion Series | b Ion Mass | y Ion Series | y Ion Mass |
|---|---|---|---|---|
| L | b | y | ||
| A | b | y | ||
| S | b | y | ||
| Q | b | y | ||
| L | b | y | ||
| G | b | y | ||
| V | b | y | ||
| Y | b | y | ||
| R | b | y |
2. Synthetic Peptide
2.1 Synthetic (Internal Standard) Peptide Sequence
LASQLGV(C5N1)YR (Modification: Stable Isotope on V7 (U-13C5, N15) )
2.2 Peptide Properties
| MW | m/z for 2+ | m/z for 3+ | pI |
|---|---|---|---|
| 1011.57 | 506.8 | 338.2 | 8.75 |
2.3 Fragment Ion Table
| AA | b Ion Series | b Ion Mass | y Ion Series | y Ion Mass |
|---|---|---|---|---|
| L | b | y | ||
| A | b | y | ||
| S | b | y | ||
| Q | b | y | ||
| L | b | y | ||
| G | b | y | ||
| V | b | y | ||
| Y | b | y | ||
| R | b | y |
2.4 Peptide Synthesis Report
Click to view/download synthesis report for LASQLGVYR
2.5 QqQ MS/MS
Transition Table:
| Transition | m/z of Transition | Collision Energy |
|---|---|---|
| y5 | 613.356 | 21.0 |
| y6 | 741.415 | 21.0 |
| y7 | 828.447 | 21.0 |
| y8 | 899.484 | 21.0 |
2.6 Calibration Curve of Standard
Description: NONE
Experiment Description: 1 million cells from cell line K526 were lysed in an immuno-precipitation buffer containing 20 mM Tris-HCL (pH 7.6), 150 mM NaCl, 1mN EDTA, 0.1% NP-40, 100ug/ml PMSF, and 1mM sodium vanadate. Cell lysates were vortexed on ice for 30 minutes and spun to clear. The Supernatant was then incubated with protein A, and then with ABL1 specific antibody that has already been bound to protein A. Samples were incubated overnight, washed and then the beads were boiled in gel loading buffer and run for 1 hour on an SDS page gel (12% Bis-Tris). Resulting gel bands were then excised, reduced, alkylated and digested overnight with trypsin. Internal standard was injected concurrently
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
