Primary Structure in Other Molecules
Any linear-chain heteropolymer can be said to have a "primary structure" by analogy to the usage of the term for proteins, but this usage is rare compared to the extremely common usage in reference to proteins. In RNA, which also has extensive secondary structure, the linear chain of bases is generally just referred to as the "sequence" as it is in DNA (which usually forms a linear double helix with little secondary structure). Other biological polymers such as polysaccharides can also be considered to have a primary structure, although the usage is not standard.
Read more about this topic: Protein Primary Structure
Famous quotes containing the words primary and/or structure:
“The primary distinction of the artist is that he must actively cultivate that state which most men, necessarily, must avoid: the state of being alone.”
—James Baldwin (1924–1987)
“For the structure that we raise,
Time is with materials filled;
Our to-days and yesterdays
Are the blocks with which we build.”
—Henry Wadsworth Longfellow (1809–1882)