The sequence of amino acids is major factor in which type of protein classification;
Correct answer: A. Primary Proteins
- A. Primary Proteins
- B. Secondary Proteins
- C. Tertiary Proteins
- D. Both Primary and Tertiary Proteins
Explanation
•Primary structure of protein is the simplest level of protein structure.It comprises the number and sequence of amino acids in a protein molecule. For Example:Dystrophin has an important primary structure. •Secondary structure is formed because of hydrogen bonding between amino acids in the peptide chain. For Example:Alpha helices and beta pleated sheets. Tertiary structure is maintained by three types of bonds;hydrogen bond,ionic and disulphide(-S-S-). For Example:Myoglobin •In quaternary structure,tertiary proteins are held together by hydrophobic interactions,hydrogen and ionic bonds. For Example:Hemoglobin
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About Classification of Proteins
Proteins are classified by composition as simple, conjugated and derived proteins, and by shape as fibrous or globular proteins. The topic relates these classes to examples such as albumin, keratin, collagen, haemoglobin and casein, while distinguishing structural proteins from proteins with transport, catalytic or regulatory roles.
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