Proteins
- Created by: Eema003
- Created on: 24-02-16 17:00
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- Proteins (polypeptides)
- Structure of an amino acid
- A central carbon atom to which 4 different chemical groups are attached:
- An amino group
- -NH2
- A Carboxyl Group
- -COOH
- A Hydrogen atom
- -H
- R-side group
- A variety of different chemical groups.
- An amino group
- A central carbon atom to which 4 different chemical groups are attached:
- Formation of a Peptide bond
- The removal of water in a condensation reaction.
- Primary structure
- Putting amino acids in order
- Bonded with peptide bonds
- Secondary Structure
- Basic level of protein folding
- Held together by hydrogen bonds
- You get Alpha helices and Beta pleats
- Tertiary structure
- Compact globular structure
- Folding the whole peptide chain
- Every protein has a unique tertiary structure
- Held together by R - group
- Fibrous --> Collagen
- Globular --> Enzu=ymes
- Quartenary
- Found in proteins
- Contains more than 1 polypeptide chain
- Each polypeptide codes for a different gene
- Structure of an amino acid
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