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How many types of proteins?

Updated: 8/11/2023
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12y ago

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Proteins can be classified on many different bases as: on the basis of chemical nature and solubility: It is based on the amino acid composition and is divided into three major classes as SIMPLE PROTEIN: these are made up of amino acids residue only 1 Globular protein: these are spherical and oval in shape, soluble in water and other solvents and digestable a) albumin e.g. egg b) globulin: soluble in neutral dilute salt solution e.g. serum globulin c) proalamines: soluble in 70% alcohol e.g. gliadin and zein maize d) histones: basic protein soluble in water and dilute acids On the basis of functions of protien: 1 Structural protein: e.g. keratin 2 Enzyme and catalytic protein: e.g. pepsin 3 Transport protein: Hb, serum albuin 4 Hormonal protein: e.g. hormones as insulin, adrenalin 5 Contractile protein: e.g. actin and myosin 6 Storage protein: e.g. oval albumin, glutamin 7 Genetic protein: e.g. nucleic acid ( DNA & RNA) 8 Defence protein: e.g. Ig, snake venom 9 Receptor protein: hormones and viruses

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15y ago
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10y ago

The number of proteins found is in astronomical figures. The simplest plant Arabdiopsis thaliana has more than 15000 types of proteins.

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12y ago

millions coded for by 3500ish genes

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