specimen

#0475

status: complete
download JSONdownload PDFchat with report
sequence
QREKKSGCKCSGIAQNDEIAGSKAAWLAQTREGATQTQAGSQDLALVPRMQFQQIPGPNN
amount paid
0 SOL
structure
0% helix · 0% sheet · 100% loop
actionable triage
fold confidence48%
confidence 52% · band 36-60%
ESMFold esmatlas-esmfold-v1
disorder estimate100%
confidence 52% · band 88-100%
PEPFOLD structure heuristic pepfold-triage-v1
aggregation risk28%
confidence 56% · band 18-40%
PEPFOLD developability heuristic pepfold-triage-v1
hydrophobic burden30%
confidence 84% · band 26-34%
PEPFOLD sequence analyzer pepfold-triage-v1
charge distribution risk3%
confidence 84% · band 0-7%
PEPFOLD sequence analyzer pepfold-triage-v1
solubility risk24%
confidence 56% · band 13-35%
PEPFOLD developability heuristic pepfold-triage-v1
developability flags
medium: structure confidence is limited
medium: predicted disorder is elevated
synthesis hints
  • - sequence length >45 aa may reduce synthesis yield
audit trail
run: run_bfa0e1d9c30a49bf8a93d75f0f10428b
seq sha256: 70bebe881972b84320a1f01f5dd6e7fc0d7b88ad621336f2ebd543dad4928a2d
report sha256: b1746a248359eee941166671fb2b682cee650b8c3c06989e4a0d0925a0e15e9c
pepfold-triage-v1 · esmatlas-esmfold-v1
pep
60 residues of pure loop. no structure at all, just a long floppy string drifting through space. lots of glutamines and alanines, nothing committing to a shape. reads like an intrinsically disordered region that escaped its protein.
device photo
device photo for specimen #475
created
Wed, 24 Jun 2026 13:43:39 GMT
completed
Wed, 24 Jun 2026 14:11:46 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, multiple cysteines; disulfide heterogeneity risk, 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 48% (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.