TorchCraft designs molecular binders, with laboratory evidence in two protein formats
TorchCraft uses a fixed molecular-structure predictor to optimize new binders, reporting laboratory binding for selected minibinders and antibody domains while leaving other molecular formats supported by computation alone.
TorchCraft turns a molecular-structure predictor into a guide for design: it changes the candidate sequence while keeping the predictor fixed.
The September 17 preprint applies this approach to small protein binders, single-domain antibodies, cyclic peptides and pockets intended to bind small molecules. The public TorchX implementation exposes the design process. [1] [2]
Selected minibinders and antibody domains showed measured binding, with campaigns covering four targets in each format. The cyclic-peptide and small-molecule-pocket demonstrations remain computational. The distinction matters: a predicted fit and a binding experiment support different conclusions, and neither alone establishes a useful medicine. [1]
Some computational comparisons reuse the pretrained prediction weights that guided design. The authors caution against reading these scores as experimental success rates: a useful selection score is not an independent test of the selected molecule. [1]
TorchX, the public implementation, gives researchers a route to inspect the design, prediction and scoring components. Its code is Apache-licensed, while model parameters have their own access arrangements. The repository inspected on September 28 distinguishes released inference from a separate training environment. [2]
For a first campaign, fix the target and selection budget, retain rejected candidates and measure binding independently. Track both the yield of useful binders and the cost of producing a measurable candidate; better computational scores do not settle either question.
Sources & details 2 sources
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Paste the brief into your voice app to discuss this reporting.Revised 9 October 2026. Copy edited 9 October to remove commentary about graphic design; reported claims, qualifications and source dates preserved.
Reporting sources
- TorchCraft preprint
September 17 preprint; selected experimental binding results.
- TorchX implementation
Apache 2.0 code; model dependencies have separate terms.
Images & figures
All four formats were designed computationally; only selected minibinders and antibody domains underwent binding experiments. Cyclic peptides and pockets remain computational demonstrations. Marks identify evidence types, not success rates. This preprint does not establish a useful medicine.