prsm_data =
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                        "position": "106",
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                            "matched_peak": {
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                    {
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                ],
                "ptm": {
                    "ptm_type": "Fixed",
                    "ptm": {
                        "abbreviation": "Carbamidomethylation",
                        "unimod": "-1",
                        "mono_mass": "57.0214640000"
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                    "occurence": [
                        {
                            "left_pos": "38",
                            "right_pos": "39",
                            "anno": "C"
                        },
                        {
                            "left_pos": "86",
                            "right_pos": "87",
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                    ]
                },
                "mass_shift": {
                    "id": "0",
                    "left_position": "34",
                    "right_position": "90",
                    "shift": "323.2212035793",
                    "anno": "+323.2212",
                    "shift_type": "unexpected"
                }
            }
        }
    }
}
