Protein structure
Protein Structure
Protein structure refers to the arrangement of atoms in the amino acids that make up a protein. The structure of a protein is vital to its function and understanding it can help in the development of new drugs and therapies.
Pronunciation
Protein Structure: /ˈproʊ.tiːn ˈstrʌk.tʃər/
Etymology
The term "protein" comes from the Greek word "proteios," meaning "primary" or "in the lead." The term "structure" comes from the Latin word "structura," meaning "a fitting together, building."
Primary Structure
The primary structure of a protein is the sequence of amino acids that make up the protein. This sequence is determined by the gene that codes for the protein.
Secondary Structure
The secondary structure of a protein refers to the local folded structures that form within a protein. These structures are often alpha-helices or beta-sheets, and are held together by hydrogen bonds.
Tertiary Structure
The tertiary structure of a protein is the overall three-dimensional shape of the protein. This structure is determined by the interactions between the amino acids and their side chains.
Quaternary Structure
The quaternary structure of a protein refers to the arrangement of multiple protein subunits in a multi-subunit complex.
Related Terms
External links
- Medical encyclopedia article on Protein structure
- Wikipedia's article - Protein structure
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