Protein primary, secondary, tertiary and quaternary structure

The images below summarize the primary, secondary, tertiary and quaternary levels of protein structure.

• These images are also available as a SLIDESHOW, or simply click on each image below to display it full-screen.
• This page is also available in Spanish.

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See AlsoSee Also

• Introduction to molecular visualization
• Backbone representations
• Alpha helix
• Helices in Proteins compares alpha, 3₁₀, and pi helices.
• Biological Unit: supposed to be the major functional quaternary structure.
• Protein primary, secondary, tertiary and quaternary structure (Spanish)
• Proteins: primary and secondary structure
• Proteins: primary and secondary structure (Spanish)
• Secondary structure
• User:Stephen Mills/Secondary Structure: Helices
• User:Stephen Mills/Secondary Structure: Sheets
• User:Eric Martz/Introduction to Structural Bioinformatics 2016