prsm_data =
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        "p_value": "2.07e-07",
        "e_value": "2.07e-09",
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                "spectrum_file_name": "C:/toppic_tutorial/tutorial_2/st_1_ms2.msalign",
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                "ms1_scans": "763",
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                "scans": "764",
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                "precursor_charge": "15",
                "precursor_mz": "562.3884",
                "feature_inte": "4.6235e+08"
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                    "ptm_type": "Fixed",
                    "ptm": {
                        "abbreviation": "Carbamidomethylation",
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                    "occurence": {
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                        "right_pos": "23",
                        "anno": "C"
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        }
    }
}
