Di sulphide bond: Covalent side chain cross link. Interaction between 2 cysteine recidues. They create a lot of rigidity. When we have 2 cysteines we create a disulphide bridge. The more cysteine the more disulphite bonds, the more bridges and the more rigid. This interactions are very strong.
Ionic interactions: Lisine +
aspartic acid (positive and negative attract each other). Attraction between
positively and negatively charged. It is the second strongest.
Hydrogen bonds:
responsible for peptide bond. It has a strong interaction. Interaction between
hidrogent that is covalently bond to an electro-negative atom.
Hydrophobic interaction: not very
strong, but exist. Fat lovers
Van der walse: at atomic
level, they are weak but they can be at high numbers. They are the weakest.
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