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. 2018 Aug 21;15:27. doi: 10.1186/s12014-018-9203-3

Fig. 4.

Fig. 4

Representative spectrum of sperm protein sequenced by 5800 MALDI TOF/TOF mass spectrometry. The MS/MS map is identified as respectively for zona pellucida-binding protein 1 (ZPBP1). The sequence of precursor at m/z 1618.7771 is assigned to the peptide of EPHYYYTFQAR. The enlarged map represents the ions labelled by iTRAQ reagent