Proteins

shannon.bates
Mind Map by shannon.bates, updated more than 1 year ago
shannon.bates
Created by shannon.bates over 5 years ago
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proteins
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Proteins
1 Roles
1.1 structural: proteins are the main component of body tissues, such as muscle, skin, ligaments and hair
1.2 catalytic: all enzymes are proteins, catalyzing many biochemical reactions
1.3 signalling: many hormones and receptors are proteins
1.4 immunological: all antibodies are proteins.
2 Dipeptides
2.1 two amino acids join together to form a dipeptide linked by a peptide bonds
2.2 formed by a condensation reaction
2.3 can be split by a hydrolysis reaction
3 structure
3.1 primary
3.2 secondary
3.3 tertiary
3.4 quaternary
4 Fibrous
4.1 formed from parallel polypeptide chains held together by cross-links
4.1.1 These form long, rope-like fibres, with high tensile strength and are generally insoluble in water
5 Globular
5.1 usually have a spherical shape caused by tightly folded polypeptide chains
5.2 The chains are usually folded so that hydrophobic groups are on the inside, while the hydrophilic groups are on the outside. This makes many globular proteins soluble in water
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