[
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    "macro_pka_values": [
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        "pka_value": 5.5,
        "charge_state_pre": 1,
        "charge_state_post": 0,
        "data_source": "Datawarrior"
      },
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        "pka_value": 12.6,
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        "data_source": "Datawarrior"
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    ]
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]