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. Author manuscript; available in PMC: 2012 Jun 3.
Published in final edited form as: J Proteome Res. 2011 Apr 25;10(6):2828–2841. doi: 10.1021/pr200088w

Figure 2.

Figure 2

Identification of phosphorylated Ser1520 in myc-Kal7 expressed in pEAK Rapid cells. The spectrum from MS/MS of the doubly charged M+2 1004.46 ion of peptide K.LLTpSELGVTEHVEGDPCK.F is shown. Based on the y10 and y15-H3PO4 ion, residue 1520 is phosphoserine. Observed M=2005.8886; calculated M=2005.9068.