1. Basic Information

Name:	CSK22_HUMAN
Accession#:	P19784
Description:	Casein kinase II subunit alpha
AA Number:	350
Sequence:	1 51 101 151 201 251 301    MPGPAAGSRA RVYAEVNSLR SREYWDYEAH VPSWGNQDDY QLVRKLGRGK YSEVFEAINI TNNERVVVKI LKPVKKKKIK REVKILENLR GGTNIIKLID TVKDPVSKTP ALVFEYINNT DFKQLYQILT DFDIRFYMYE LLKALDYCHS KGIMHRDVKP HNVMIDHQQK KLRLIDWGLA EFYHPAQEYN VRVASRYFKG PELLVDYQMY DYSLDMWSLG CMLASMIFRR EPFFHGQDNY DQLVRIAKVL GTEELYGYLK KYHIDLDPHF NDILGQHSRK RWENFIHSEN RHLVSPEALD LLDKLLRYDH QQRLTAKEAM EHPYFYPVVK EQSQPCADNA VLSSGLTAAR

*Highlighted peptides (with yellow background) have developed assays.
*Green background amino acids are PTMs.

2. Protein Separation

Sample Preparation: Cells from colon caner line HCT 116 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.

 

3. LC-MS/MS Data

VYAEVNSLR

    No LC-MS/MS for this peptide.

VLGTEELYGYLK

    No LC-MS/MS for this peptide.

4. LC-MRM Screening

Peptides screening: Peptides and transitions for analysis were selected using a predictive peptide program. The results were screened for those with the highest specificity and the most intense transitions.