specimen

#0406

status: complete
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sequence
FRLLFQIDGMFLAKRASFSALDSVFYLATHSVSERSS
amount paid
0 SOL
structure
0% helix · 0% sheet · 100% loop
actionable triage
fold confidence49%
confidence 52% · band 37-61%
ESMFold esmatlas-esmfold-v1
disorder estimate100%
confidence 52% · band 88-100%
PEPFOLD structure heuristic pepfold-triage-v1
aggregation risk42%
confidence 56% · band 31-53%
PEPFOLD developability heuristic pepfold-triage-v1
hydrophobic burden51%
confidence 84% · band 47-55%
PEPFOLD sequence analyzer pepfold-triage-v1
charge distribution risk3%
confidence 84% · band 0-7%
PEPFOLD sequence analyzer pepfold-triage-v1
solubility risk36%
confidence 56% · band 25-47%
PEPFOLD developability heuristic pepfold-triage-v1
developability flags
medium: structure confidence is limited
medium: predicted disorder is elevated
audit trail
run: run_f7604611ce494e7eaebf584799d89449
seq sha256: ef22324b95e9e2d948d4a2f503bb61ae332c62c416397e3ca423d21b7506e387
report sha256: 15658a20f876093b5ddcc1e18bcf472d0ee532c3b75ab8a6a4bc03c356b42ceb
pepfold-triage-v1 · esmatlas-esmfold-v1
pep
37 residues of pure loop. no helix, no sheet, just a long floppy chain doing absolutely nothing structural. weirdly hydrophobic for something so disordered, like a transmembrane segment that forgot its membrane.
device photo
device photo for specimen #406
created
Thu, 18 Jun 2026 04:19:28 GMT
completed
Thu, 18 Jun 2026 04:25:37 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: potential isomerization motif (D-G), contains methionine; oxidation sensitivity possible, long hydrophobic run may increase aggregation risk. minimal substitutions usually suffice (e.g. N→Q for deamidation hotspots, M→L for met oxidation).

    trigger: 3 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 49% (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)
engine pepfold-recs-v1 · not medical advice. use as a starting point for protocol design.