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Summary
Structure of Protein: Primary, Secondary, Tertiary, and Quaternary Protein Structures
Proteins are an important class of molecules found in all living cells. A protein is composed of one or more long chains of amino acids, the sequence of which corresponds to the DNA sequence of the gene that encodes it. Proteins play a variety of roles in the cell, including structural (cytoskeleton), mechanical (muscle), biochemical (enzymes), and cell signaling (hormones). Proteins are also an essential part of diet.
Copyright status:
This image is public domain because it was first published by the National Human Genome Research Institute. http://www.genome.gov/copyright.cfm
Source:
http://www.genome.gov/Glossary/index.cfm?id=169
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment |
current | 22:19, 26 September 2010 |  | 657 × 720 (168 KB) | Ashcraft | |
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