{
  "report_format_version": "pepfold-report-v1",
  "generated_at": "2026-06-19T00:32:20.861Z",
  "specimen": {
    "number": 404,
    "sequence": "QGLTNAHGGACMLKKAASERKNKIESHTD",
    "sequence_length": 29,
    "status": "complete",
    "wallet": "62ef4jLfuT2zYFwBsTqHCHXMWkHAPiNn7dfeEn8qj37Q",
    "amount_sol": 0,
    "tx_hash": "4ira3Y7Q7zbCmSsDfV1CWDpUy6Qexe9YHgsSXygmEz16i6J8LNaHNgnvbGjadeRrzPFM1jn4YetcuAdwe7hn5YKg",
    "created_at": "2026-06-18T04:18:19.458832+00:00",
    "completed_at": "2026-06-18T04:22:22.001124+00:00"
  },
  "structure": {
    "pdb_url": "https://mrzziawbddodlpywncfy.supabase.co/storage/v1/object/public/pdb-files/dba327e1-b5ff-468a-957b-9dd261e451d3.pdb",
    "helix_pct": 0,
    "sheet_pct": 0,
    "loop_pct": 100
  },
  "triage": {
    "models": {
      "fold_model": {
        "name": "ESMFold",
        "version": "esmatlas-esmfold-v1"
      },
      "triage_model": {
        "name": "PEPFOLD heuristic triage",
        "version": "pepfold-triage-v1"
      },
      "comment_model": {
        "name": "Claude",
        "version": "claude-opus-4-7"
      }
    },
    "run_id": "run_f4063775cd7148e79e1c29d78f4b4fc9",
    "metrics": [
      {
        "id": "fold_confidence",
        "label": "fold confidence",
        "value": 0.751,
        "source": {
          "model": "ESMFold",
          "version": "esmatlas-esmfold-v1"
        },
        "confidence": 0.52,
        "evidence_note": "derived from mean pLDDT on CA atoms",
        "confidence_band": [
          0.631,
          0.871
        ],
        "not_enough_confidence": true
      },
      {
        "id": "disorder_estimate",
        "label": "disorder estimate",
        "value": 0.31,
        "source": {
          "model": "PEPFOLD structure heuristic",
          "version": "pepfold-triage-v1"
        },
        "confidence": 0.52,
        "evidence_note": "estimated from loop proportion and low-confidence structure regions",
        "confidence_band": [
          0.19,
          0.43
        ],
        "not_enough_confidence": true
      },
      {
        "id": "aggregation_risk",
        "label": "aggregation risk",
        "value": 0.186,
        "source": {
          "model": "PEPFOLD developability heuristic",
          "version": "pepfold-triage-v1"
        },
        "confidence": 0.56,
        "evidence_note": "hydrophobic burden, aromatic burden, charge, and long hydrophobic runs",
        "confidence_band": [
          0.076,
          0.296
        ],
        "not_enough_confidence": false
      },
      {
        "id": "hydrophobic_burden",
        "label": "hydrophobic burden",
        "value": 0.276,
        "source": {
          "model": "PEPFOLD sequence analyzer",
          "version": "pepfold-triage-v1"
        },
        "confidence": 0.84,
        "evidence_note": "fraction of hydrophobic residues in sequence",
        "confidence_band": [
          0.236,
          0.316
        ],
        "not_enough_confidence": false
      },
      {
        "id": "charge_distribution_risk",
        "label": "charge distribution risk",
        "value": 0.069,
        "source": {
          "model": "PEPFOLD sequence analyzer",
          "version": "pepfold-triage-v1"
        },
        "confidence": 0.84,
        "evidence_note": "absolute net charge normalized by sequence length",
        "confidence_band": [
          0.029,
          0.109
        ],
        "not_enough_confidence": false
      },
      {
        "id": "solubility_risk",
        "label": "solubility risk",
        "value": 0.182,
        "source": {
          "model": "PEPFOLD developability heuristic",
          "version": "pepfold-triage-v1"
        },
        "confidence": 0.56,
        "evidence_note": "composite of aggregation risk, hydrophobic burden, and charge",
        "confidence_band": [
          0.072,
          0.292
        ],
        "not_enough_confidence": false
      },
      {
        "id": "developability_risk",
        "label": "developability risk",
        "value": 0.209,
        "source": {
          "model": "PEPFOLD developability heuristic",
          "version": "pepfold-triage-v1"
        },
        "confidence": 0.56,
        "evidence_note": "composite developability indicator used for triage",
        "confidence_band": [
          0.099,
          0.319
        ],
        "not_enough_confidence": false
      }
    ],
    "generated_at": "2026-06-18T04:21:01.414635+00:00",
    "report_version": "phase-a.v1",
    "sequence_length": 29,
    "synthesis_hints": [],
    "motif_liabilities": [
      "contains methionine; oxidation sensitivity possible"
    ],
    "developability_flags": [],
    "low_confidence_reasons": [
      "DSSP unavailable; secondary structure uses pLDDT fallback."
    ]
  },
  "audit": {
    "input": {
      "sequence_length": 29,
      "sequence_sha256": "27499edd181ba64591e874f3b0bb6f34d87d9dfa1f2e819d04b2c6e1c332de3a"
    },
    "output": {
      "report_sha256": "f7e6a8910533dfff67935e00836724c35abe4fd3e9bb08d7edbc862cb6ce4630"
    },
    "run_id": "run_f4063775cd7148e79e1c29d78f4b4fc9",
    "timestamp": "2026-06-18T04:21:01.414726+00:00",
    "pipeline_versions": {
      "pep_model_version": "claude-opus-4-7",
      "fold_model_version": "esmatlas-esmfold-v1",
      "triage_model_version": "pepfold-triage-v1",
      "secondary_structure_source": "plddt_fallback"
    }
  },
  "attestation": null,
  "next_experiments": {
    "engine": "pepfold-recs-v1",
    "recommendations": [
      {
        "id": "liability_redesign",
        "technique": "LIABILITY REDESIGN ROUND",
        "rationale": "redesign to remove the flagged motif(s) before going wet-lab: contains methionine; oxidation sensitivity possible. minimal substitutions usually suffice (e.g. N→Q for deamidation hotspots, M→L for met oxidation).",
        "evidence": "1 motif liability flag(s) in the sequence",
        "turnaround_days": [
          0,
          1
        ],
        "tier": "in_silico_only"
      }
    ]
  },
  "comment": "all loop, no structure. 29 residues of pure floppiness, nothing committing to anything. lots of charge scattered through it, lysines and glutamates jostling. reads like a disordered tail that lost its protein.",
  "tweet": {
    "id": "2067462900655255718",
    "url": "https://x.com/pepfoldagent/status/2067462900655255718"
  }
}