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Protean

Candidate cycle-20260526T020837Z-0…

HQMAQHCDDCDQFPTDCG

Why this candidate advanced

Advanced for computational review because it showed compact fold, low exposed hydrophobic and ordered in the phenotype first unknown target campaign. This is a structural-prior signal only, not evidence of activity. The current computational decision is promote for review.

Next experimental question

Does this sequence show measurable phenotype first unknown target activity, target engagement, or useful stability under controlled assay conditions?

Structure

Loading structure…
Predicted structure (ESMFold). Computational prediction — not an experimental structure and not biological proof.

Structure Intelligence

Computational decision
promote for review
pLDDT
65.9
Compactness
0.749
Exposed hydrophobic
0.080
Disulfide feasible
no
Structural novelty
1.000
Fold family
fold_cluster_000
Route
remote_esmatlas
Predicted structure source
ESMFold prediction

Computational structural priors only. ESMFold/ESMFold2 predictions are not experimental structures or evidence of activity.

Research narrative

This is a computational prioritization result, not evidence of biological activity. Candidate struct_73519d94d50c71cb (18 aa) was advanced by Protean's structure-intelligence rerank as a promote for review within the phenotype-first (unknown target) campaign.

Structural prior signals: compact fold, low exposed hydrophobic, ordered. pLDDT 65.89; compactness 0.7485; exposed-hydrophobic 0.0802.

Disulfide assessment: no feasible disulfide pattern detected.

Novelty: structural-novelty score 1.000; fold family fold_cluster_000 (family size 10). No structural archive match available; novelty by feature-vector fallback.

Sequence brief

Residue composition
HQMAQHCDDCDQFPTDCG
18 aa
phenotype_first_unknown_target
hydrophobic17%
polar39%
positive11%
negative22%
aromatic6%
C/P/G28%
odd cysteine
Fold evidence
very high 0%
confident 0%
low 83%
very low 17%
helix47%
sheet27%
coil27%
mean pLDDT
54.9
min pLDDT
47.0
compactness
0.749
exposed hydrophobic
0.080
radius of gyration
7.853
novelty
1.000
Computational decision
promote for review

Triage label: favored

Evidence signatures

compact_fold, low_exposed_hydrophobic, ordered

ESMFold2 comparison
esmfold2-fast-2026-05 · folded
pLDDT 54.94 · pTM · iPTM

Sequence and structure signals are computational triage evidence. They do not establish activity, binding, stability, safety, or wet-lab readiness.

Sequence & model analysis

Physicochemical properties
Computed from sequence (ProtParam-style). Computational, not biological proof.
Length
18 aa
Mol. weight
2.05 kDa
Net charge (pH 7.4)
-4.06
Isoelectric pt (pI)
4.02
GRAVY
-1.09
Aromaticity
6%
Per-residue model confidence (pLDDT)
ESMFold per-residue confidence from the folded model (0–100).

No per-residue confidence available — a folded coordinate file has not been published for this candidate.

Hydropathy profile
Kyte–Doolittle windowed hydropathy. Positive = hydrophobic, negative = hydrophilic.
4.50-4.5hydrophilic ↓ / hydrophobic ↑ · window 5
Sequence (colored by hydrophobicity)
Each residue shaded by Kyte–Doolittle value; hover for position + score.
H
Q
M
A
Q
5
H
C
D
D
C
10
D
Q
F
P
T
15
D
C
G

Provenance

provenance_hash: sha256:73519d94d50c71cb07235833b880555ecd8c38606c7af8ee8273ca00eee199e2
pdb_sha256: sha256:d60a89ca5b474f60a603cafde155340272e0e3a398724d7f97e33f406341e15f
campaign: phenotype_first_unknown_target
ledger_record: not attested

computational structural prior; ESMFold/proxy prediction; not an experimental structure and not biological proof of fold, binding, stability, or activity