Structure and formation of Proteins
- Created by: Tre
- Created on: 24-10-12 18:18
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- Haemoglobin: structure and formation of proteins.
- Haemoglobin is a protein.
- Haemoglobin is a polymer.
- Monomers are amino acids.
- Haemoglobin is a polymer.
- Amino acids = a carboxylic acid group and an amino group.
- 20 different amino acids. Each has a different R group.
- There are 4 structures to proteins
- Primary Structure - the number and sequence of amino acids in polypeptide chain.
- Secondary - chain becomes so long it coils into a ALPHA-HELIX or folded into a BETA-PLEATED SHEET. Weak hydrogen bonds to hold the shape. R groups not involved.
- Tertiary - polypeptide chain is folded/coiled again into a specific shape held by bonds between the R groups of amino acids in chain.
- Quaternary - contains more than one polypeptide chain.
- Tertiary - polypeptide chain is folded/coiled again into a specific shape held by bonds between the R groups of amino acids in chain.
- Secondary - chain becomes so long it coils into a ALPHA-HELIX or folded into a BETA-PLEATED SHEET. Weak hydrogen bonds to hold the shape. R groups not involved.
- Primary Structure - the number and sequence of amino acids in polypeptide chain.
- Hydrogen, Ionic and Disulfide bridge are 3 main bonds
- Hydrogen and Ionic bonds are weak.
- Disulfide bond is strong - only amino acid, CYSTEINE, would form this bond.
- Haemoglobin is a protein.
- Haemoglobin is a polymer.
- Monomers are amino acids.
- 4 bond that stablise this structure: Hydrogen, Hydrophobic/hydrophilic interactions, ionic and disulfide
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