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. 2012 May 8;10:31. doi: 10.1186/1477-5956-10-31

Table 1.

Relative label-free quantification of proteins

Protein Peptide sequence Precursor ion [m/z] Precursor charge Product ion [m/z] Product ion fold (N/MDS)
LRAG
TLDLGENQLETLPPDLLR
1019.1
2+
710.4
y6
2.24
LRAG
ENQLEVLEVSWLHGLK
947.5
2+
1181.8
y10
1.08
RBP4
FSGTWYAMAK
589.3
2+
785.3
y6
2.33
RBP4
YWGVASFLQK
599.9
2+
693.4
y6
3.21
RBP4 YWGVASFLQK 599.9 2+ 849.5 y8 3.29

LRAG (leucine-rich alpha-2-glycoprotein), RBP4 (retinol-binding protein 4).