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Explain the different types of protein b...

Explain the different types of protein bonding.

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Hydrogen Bond:
1. It is formed between some hydrogen atoms of oxygen and nitrogen in polypeptide chain. The hydrogen atoms have a small positive charge and oxygen and nitrogen have small negative charge. Opposite charges attract to form hydrogen bonds.
2. Though these bonds are weak , large number of them maintains the molecule in 3D shape.
Ionic Bond:
It is formed between any charged groups that are not joined together by peptide bond. It is stronger than hydrogen bond and can be broken by changes in pH and temperature.
Disulfide Bond :
1. Some amino acids like systeine and methionine have sulphur.
2. These form disulphide bridge between sulphur atoms and amino acids.
Hydrophobic Bond :
1. This bond helps some protein to maintain structure.
2. When globular proteins are in solution , their hydrophobic groups point inwards away from water.
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