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Protein Structure
BIology Based
| Question | Answer |
|---|---|
| Three Levels | Primary, Secondary, teritiary |
| Quaternary Structure | arises when two or more polypeptides join forming proteins. |
| Primary Sructure | sequence of amino acids |
| Secondary structure | regular pattern of twists/kinks of polypeptide chain, regularity because of hydrogen bonds forming between atoms of amino acid backbones of chain |
| Two most common types of secondary structure | Alpha Helix (coils) and B pleated sheet (folds) |
| Tertiary Structure | helices and sheets of secondary structure fold upon thmselves |
| Collagen | Quaternary, fibrous protein of three polypeptides |
| Hemoglobin | Quaternary, fibrous protein of four polypeptides |