prsm_data =
{
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        "compatible_proteoform": {
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                "e_value": "8.23e-08",
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                "matched_peak_number": "33",
                "ms": {
                    "ms_header": {
                        "spectrum_file_name": "C:/toppic_tutorial/tutorial_2/st_1_ms2.msalign",
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                        "scans": "920",
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                    "proteoform_mass": "9518.2899",
                    "n_acetylation": "0",
                    "unexpected_shift_number": "0",
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                        "last_residue_position": "86",
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                                "acid": "R"
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