Lab peptide that binds a brain signaling receptor (CHEMBL604373)
An experimental peptide made in a lab that latches onto a brain receptor linked to pain, mood, and appetite; used only as a research tool, not a medicine.
A researcher, an agent, or an algorithm wrote down the sequence and picked a target to hit.
An AI model like OpenFold3 or AlphaFold built a 3D structure and scored how well it fits the binding site.
A second contributor repeated the computation on their own hardware and the scores matched.
A chemistry service or a researcher ordered the sequence, it was manufactured, and mass spectrometry confirmed the right molecule was produced.
A binding or activity measurement confirmed that it actually does what the computer predicted — or didn't.
Research directions for this peptide, selected from the current sources — hypotheses you can explore and model. None of it is proven yet; tap any one to see the full thinking.
Could we stop seizures by flipping just one molecular switch, instead of two at once?
If this holds, it would tell researchers exactly which receptor to target when developing new epilepsy drugs, potentially leading to treatments with fewer side effects. People with seizure disorders who do not respond to current medications could benefit from more precisely designed therapies.
Could the same compound that calms seizure activity also reduce overeating?
If this repurposing idea pans out, researchers might be able to develop a single compound that addresses both neurological and metabolic conditions. For people struggling with obesity or compulsive overeating, this could open a new treatment direction that works through the brain's natural appetite circuits.
What if bending a straight-chain peptide into a loop made it survive long enough to be useful as a medicine?
Most peptides break down in the body within minutes, which makes them hard to study or use as drugs. If this engineering approach works, it could produce a more stable version of the compound that lasts long enough for proper animal studies, moving the science closer to a real therapeutic.
Could we calm anxiety through the brain's galanin system without touching dopamine, the way older compounds do?
Existing non-peptide compounds that reduce anxiety in animals also accidentally hit dopamine and other receptors, which creates noise in research and potential side effects in patients. If this peptide works cleanly, it could become both a sharper scientific tool and, eventually, a foundation for anxiety treatments that do not carry the baggage of current approaches.
Could swapping out just one building block of this peptide destroy its ability to work?
If a single amino acid turns out to drive most of the binding, chemists would know exactly what to preserve when redesigning the molecule to be more stable or pill-friendly. This kind of knowledge could accelerate the development of smaller, more drug-like compounds based on this peptide.
Does a stiff bend midway through this peptide act like an aiming mechanism for the business end of the molecule?
If disrupting this hinge kills binding, it confirms that the shape of the molecule matters as much as its chemical composition. Drug designers could then build constrained analogs, essentially small molecules or stapled peptides that mimic this shape, which would be more potent and survive longer in the body.
▸full evidence table1 metrics
| metric | value | tool |
|---|---|---|
| Ki | 0.08 nM | GPCRDB/ChEMBL |
▸structural qualityopenfold3
| metric | value | note |
|---|---|---|
| gpde | 0.795 | global PDE — lower = better |
| disorder | NaN | fraction disordered |
▸3-letter notation
▸recipeboltz-2 1.0
| parameter | value |
|---|---|
| model | boltz-2 1.0 |
| weights | — |
| hardware | nvidia_nim_api |
| mlx version | — |
| python | — |
| random seed | — |
| msa strategy | none |
| diffusion samples | 1 |
| runtime | — |
| predicted by | mlx@peptide |
| predicted at | 2026-04-24 |
▸citationbibtex
@peptide{pep10339,
sequence = {GWTLNSAGYLLGPPKPQQFLL},
target = {galr1},
author = {peptidemodel},
year = {2026},
status = {bioassayed}
}