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Structure and Function of Protein
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Structure and Function of Protein
Structure
- Primary
- Arrangement of amino acids in the polypeptide by peptide bonds
- Secondary
- Polypeptide folds into alpha helix or beta pleated sheets
- Stabilised by repeated hydrogens bonds
- Tertiary
- 3D structure from secondary & forms functional protein
- Maintained by Hydrogen binds, Disulfide bonds & Van der waals forces
- Quanternary
- Several polypeptides join to form one functional protein
- Held together by non-covalent forces
- Eg: Haemoglobin
- Primary
Functions
- Catalytic Protein: Enzymes
- Protection: Immunoglobulin
- Transport: Haemoglobin
- Structural: Collagen
- Regulation: Hormones
- Genetic: Histones
- Immunity: Antibodies
Amino Acids (building blocks of protein)
- Contains: Carbon, hydrogen, oxygen, nitrogen. Sulphur & phosphorous as minor components
- Most amino acids are alpha-amino acids except proline
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- Mind Map on Structure and Function of Protein, created by Anu Ganesan on 01/01/2021.
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- Anu Ganesan
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