prsm_data =
{
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        "prsm_id": "24",
        "p_value": "2.79e-07",
        "e_value": "2.79e-09",
        "fdr": "0",
        "matched_fragment_number": "5",
        "matched_peak_number": "6",
        "ms": {
            "ms_header": {
                "spectrum_file_name": "C:/toppic_tutorial/tutorial_2/st_1_ms2.msalign",
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                "ms1_scans": "731",
                "ids": "357",
                "scans": "732",
                "precursor_mono_mass": "8420.6578",
                "precursor_charge": "14",
                "precursor_mz": "602.4828",
                "feature_inte": "1.7663e+08"
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                                "ion_display_position": "58",
                                "ion_sort_name": "Y00058",
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                    },
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        },
        "annotated_protein": {
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            "proteoform_id": "5",
            "sequence_name": "sp|P68684|RS21_SALTY",
            "sequence_description": "30S ribosomal protein S21 OS=Salmonella typhimurium (strain LT2 / SGSC1412 / ATCC 700720) OX=99287 GN=rpsU PE=3 SV=2",
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            "n_acetylation": "0",
            "unexpected_shift_number": "0",
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                "first_residue_position": "1",
                "last_residue_position": "70",
                "annotated_seq": "M.PVIKVRENEPFDVALRRFKRS(C)[Carbamidomethylation]EKAGVLAEVRRREFYEKPTTERKRAKASAVKRHAKKLARENARRTRLY.",
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                    "ptm_type": "Fixed",
                    "ptm": {
                        "abbreviation": "Carbamidomethylation",
                        "unimod": "-1",
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                    "occurence": {
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                        "right_pos": "23",
                        "anno": "C"
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                }
            }
        }
    }
}
