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Table 1 Amino acid sequence, m/z ratios and retention times of S. aureus PSMs

From: Expression and regulation of phenol-soluble modulins and enterotoxins in foodborne Staphylococcus aureus

PSMs

Amino acid sequence

MS(m/z ratios, Da)a

RT (min)

PSMα1

fMGIIAGIIKVIKSLIEQFTGK

763.4554(t)

1144.6842(d)

12.073

PSMα2

fMGIIAGIIKFIKGLIEKFTGK

769.4640(t)

1153.6964(d)

11.639

PSMα3

fMEFVAKLFKFFKDLLGKFLGNN

879.1432(d)

1318.2228(d)

10.207

PSMα4

fMAIVGTIIKIIKAIIDIFAK

734.1283(t)

1100.6982(d)

20.819

PSMδ-toxin

fMAQDIISTIGDLVKWIIDTVNKFTKK

1002.8844(t)

1503.8245(d)

12.056

PSMβ1

fMEGLFNAIKDTVTAAINNDGAKLGTSIVSIVENGVGLLGKLFGF

1131.8610(q)

1508.8015(t)

15.588

PSMβ2

fMTGLAEAIANTVQAAQQHDSVKLGTSIVDIVANGVGLLGKLFGF

1121.8514(q)

1495.4609(t)

8.190

  1. a(d), (t) and (q) respectively stand for doubly, triply and quadruply charged ions