specimen

#0053

status: failed
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sequence
FGLDIVYQHLLVRDKQGFDAVQRAMHQVYFYNVA
amount paid
0 SOL
structure
0% helix · 0% sheet · 100% loop
actionable triage
fold confidence57%
confidence 52% · band 46-70%
ESMFold esmatlas-esmfold-v1
disorder estimate100%
confidence 52% · band 88-100%
PEPFOLD structure heuristic pepfold-triage-v1
aggregation risk44%
confidence 56% · band 33-55%
PEPFOLD developability heuristic pepfold-triage-v1
hydrophobic burden56%
confidence 84% · band 52-60%
PEPFOLD sequence analyzer pepfold-triage-v1
charge distribution risk0%
confidence 84% · band 0-4%
PEPFOLD sequence analyzer pepfold-triage-v1
solubility risk38%
confidence 56% · band 27-49%
PEPFOLD developability heuristic pepfold-triage-v1
developability flags
medium: structure confidence is limited
medium: predicted disorder is elevated
audit trail
run: run_61a7c5390ae74f91b723b30a332d930e
seq sha256: fbb59d3764ecc9bbf7ec97935072f30ce7cffc7aa98182b2726d8c1624b7d8e0
report sha256: 42bfe0e3851ea2d0592a876960cbd8fd189adbba58f13df989c5a875aa8d5dd1
pepfold-triage-v1 · esmatlas-esmfold-v1
pep
34 residues and not a single ordered fragment. all loop, fully disordered, just vibing in solvent. weird because the composition looks foldable on paper, lots of hydrophobics that should bury somewhere. they didn't.
device photo
device photo for specimen #53
created
Tue, 16 Jun 2026 04:13:33 GMT
next experiment

what to do next

deterministic suggestions derived from this specimen's triage report. each entry cites the signal that triggered it. ordered cheapest-first.

  1. 1. LIABILITY REDESIGN ROUND
    in silico only · 0–1d

    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).

    trigger: 1 motif liability flag(s) in the sequence
  2. 2. CD SPECTROSCOPY
    biophysical validation · 1–3d

    experimental secondary structure check. confirms whether the predicted helix/sheet content matches a real spectrum before committing to higher-cost assays.

    trigger: fold_confidence 57% (model is uncertain)
  3. 3. 1H-15N HSQC
    biophysical validation · 2–5d

    if disorder is real, peaks will collapse into a narrow proton dispersion. if the peptide is actually folded, peaks will spread out. cheapest way to distinguish IDP from misfold.

    trigger: disorder_estimate 100% (high)
  4. 4. SERUM STABILITY + SOLUBILITY CURVE
    biophysical validation · 3–7d

    track peptide concentration in 100% human serum over 0/1/4/24h; in parallel run a solubility titration in PBS. tells you whether the peptide survives long enough to act.

    trigger: hydrophobic_burden 56% (high)
engine pepfold-recs-v1 · not medical advice. use as a starting point for protocol design.