Quaternary Protein Structure
1,935 views
Protein Structure
Quaternary Protein Structure
Subscribe to watch this premium Quaternary Protein Structure mnemonic in the Protein Structure playlist.
Subscribe to watch this premium mnemonic
Summary
The quaternary structure of proteins is the highest level of protein structure, and refers to the interactions between separate proteins to form a multiprotein complex.
Key Points
- Quaternary Structure
- Interactions between separate proteins to form a multiprotein complex
- Involves the same forces as tertiary structures
- Interactions with water, hydrogen bonding, electrostatic interactions, van der Waals forces, and disulfide bonds
Example
One common example of quaternary structure is the bringing together of 4 globin proteins in hemoglobin. These 4 globin molecules and heme come together to form a single multi-protein complex called hemoglobin, which plays a key role in carrying oxygen in our blood.