File:225 Peptide Bond-01.jpg
Summary
(a) The primary structure is the sequence of amino acids that make up the
polypeptide chain. (b) The secondary structure, which can take the form of an alpha-helix or a beta-pleated sheet, is maintained by hydrogen bonds between amino acids in different regions of the original polypeptide strand. (c) The tertiary structure occurs as a result of further folding and bonding of the secondary structure. (d) The quaternary structure occurs as a result of interactions between two or more tertiary subunits. The example shown here is
hemoglobin, a protein in red blood cells which transports oxygen to body tissues.
Licensing
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 12:58, 4 January 2017 | | 2,219 × 1,886 (1.21 MB) | 127.0.0.1 (talk) | (a) The primary structure is the sequence of amino acids that make up the <p>polypeptide chain. (b) The secondary structure, which can take the form of an alpha-helix or a beta-pleated sheet, is maintained by hydrogen bonds between amino acids in different regions of the original polypeptide strand. (c) The tertiary structure occurs as a result of further folding and bonding of the secondary structure. (d) The quaternary structure occurs as a result of interactions between two or more tertiary subunits. The example shown here is </p> hemoglobin, a protein in red blood cells which transports oxygen to body tissues. |
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