is a fully automated protein structure homology-modelling server, accessible via the Expasy web server, or from the program DeepView (Swiss Pdb-Viewer).

The purpose of this server is to make protein modelling accessible to all life science researchers worldwide.


Every week we model all the sequences for thirteen core species based on the latest UniProtKB proteome. Is your protein already modelled and up to date in SWISS-MODEL Repository?

What's new

We have added a simple way to annotate the results of your modelling or structure assessment projects.


Start your own jobs from the command line using curl or your programming language of choice, or from a choice of interactive OpenAPI UIs.


TBvar3D, a web server for the interpretation of antibiotic resistance variants of Mycobacterium tuberculosis on protein structures.


For latest developments and news, follow SWISS-MODEL on



Severe acute respiratory syndrome coronavirus 2, is a positive-sense, single-stranded RNA coronavirus. It is a contagious virus that causes coronavirus disease 2019 (COVID-19).

We modelled the full SARS-CoV-2 proteome based on the NCBI reference sequence NC_045512 and annotations from UniProt.

The results are available here.

SARS-CoV-2 Variants of Concern, as described by the World Health Organization, were added as Annotation Projects to SWISS-MODEL Repository.

Variants of Concern

Omicron 21K (BA.1); 21L (BA.2); 22A (BA.4); 22B (BA.5); 22C (BA.2.12.1)

Compare these variants on the spike protein, SPIKE_SARS2

Protein Structure Bioinformatics Group
c/o Prof. Torsten Schwede
Swiss Institute of Bioinformatics
Biozentrum, University of Basel
Spitalstrasse 41
CH-4056 Basel / Switzerland
SWISS-MODEL is developed by the Computational Structural Biology Group at the SIB Swiss Institute of Bioinformatics and the Biozentrum of the University of Basel. This project has furthermore received funding from ELIXIR and the European Union's Horizon 2020 research and innovation programme under grant agreement number 101003551.

When you publish or report results using SWISS-MODEL, please cite the relevant publications:

  • Waterhouse, A., Bertoni, M., Bienert, S., Studer, G., Tauriello, G., Gumienny, R., Heer, F.T., de Beer, T.A.P., Rempfer, C., Bordoli, L., Lepore, R., Schwede, T. SWISS-MODEL: homology modelling of protein structures and complexes. Nucleic Acids Res. 46(W1), W296-W303 (2018).
  • Bienert, S., Waterhouse, A., de Beer, T.A.P., Tauriello, G., Studer, G., Bordoli, L., Schwede, T. The SWISS-MODEL Repository - new features and functionality. Nucleic Acids Res. 45, D313-D319 (2017).
  • Guex, N., Peitsch, M.C., Schwede, T. Automated comparative protein structure modeling with SWISS-MODEL and Swiss-PdbViewer: A historical perspective. Electrophoresis 30, S162-S173 (2009).
  • Studer, G., Rempfer, C., Waterhouse, A.M., Gumienny, G., Haas, J., Schwede, T. QMEANDisCo - distance constraints applied on model quality estimation. Bioinformatics 36, 1765-1771 (2020).
  • Bertoni, M., Kiefer, F., Biasini, M., Bordoli, L., Schwede, T. Modeling protein quaternary structure of homo- and hetero-oligomers beyond binary interactions by homology. Scientific Reports 7 (2017).
* Please note the terms of use of SWISS-MODEL.