This is SWISS-MODEL Beta server. Modelling hetero-oligomers is now possible!

You can input multiple target sequences for a single modelling job.
Enter the first sequence the normal way with copy and paste, or add a UniProtKB AC, then add another - and another - and another!
You can revert to the stable SWISS-MODEL website clicking here

Principles of Protein Structure, Comparative Protein Modelling, and Visualisation

Part I: Introduction to Protein structure

Part II: Protein modelling with SWISS-MODEL

Part III: Model quality

Model quality assessment tools are used to estimate the reliability of predicted protein structure models. The accuracy of individual models may vary significantly from the expected average quality due for instance to suboptimal target-template alignments, low template quality, structural flexibility or inaccuracies introduced by the modeling program. Individual assessment of each model is therefore essential.



The 5 first chapters of this course (Part I) are adapted from the Internet course on protein structure by J. Cooper, J. Walshaw & Alan Mills.