Home of the HELM notation - representing complex biomolecules
HELM Specification (download)
Examples and Test Data
HELMCoreLibrary on GitHub
Peptide Monomer Guidelines
Nucleotide Monomer Guidelines
Monomer services Swagger page
Webservices Swagger page
Web editorHELM Antibody EditorToolkitSearch toolArchive
GitHub code quick links
Web editorHELM Antibody EditorToolkitSearch tool
If you have a suggestion to improve HELM, or the tools or want to ask advice, please contact us on info@openHELM.org
We have worked with at least 83 people across 28 organisations to develop HELM over the last 10 years and are deeply grateful to all of them.
You can read more about our adopters and the ways they are using HELM.