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Haemoglobin and ion channels are the examples of which level of protein organisation?

Option: 1

Primary structure


Option: 2

Secondary structure


Option: 3

Tertiary structure


Option: 4

Quaternary structure


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Structure of Proteins - Tertiary & Quaternary Structure -

Structure of Proteins - Tertiary & Quaternary Structure

  • The tertiary structure of a protein is its unique three-dimensional structure. 
  • It occurs due to the following interactions:

                          -Hydrophobic Interactions
                          -Van Der Waals Interactions
                          -Disulfide Bridges
                          -H-bonds and Ionic Bonds

  • Some proteins are formed from several polypeptides, also known as subunits, and the interaction of these subunits forms the quaternary structure.
  • For example, Hemoglobin protein has two α and two β polypeptides together with four heme groups.
  • Weak interactions between the subunits help to stabilize the overall structure.

                                                    

Some proteins are formed from several polypeptides, also known as subunits, and the interaction of these subunits forms the quaternary structure. For example, Hemoglobin protein has two \alpha and two \beta polypeptides together with four heme groups.

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Gautam harsolia

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