Dictionary » Q » Quaternary structure

Quaternary structure

Definition

noun

A structural level wherein several proteins (or polypeptide subunits) interact through non-covalent bonds to form one functional protein complex.


Supplement

In proteins, there are four recognized levels of protein structure: primary structure, secondary structure, tertiary structure, and quaternary structure.

A quaternary structure of a protein refers to the assembly of multiple folded protein molecules in a multi-subunit complex.


See also: protein structure


Please contribute to this project, if you have more information about this term feel free to edit this page



This page was last modified 13:07, 10 June 2009. This page has been accessed 30,864 times. 
What links here | Related changes | Permanent link