Proteins by aniqa atta

Proteins by aniqa atta

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  PROTEINS Aniqa atta BS: Renaldialysis technology Mphil: Molecular biology and genetics
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  What are proteins? •Proteins are large size molecules (macromolecules) • Polymers of structural units called amino acids • Swedish chemist Jöns Jacob Berzelius, who in 1838 coined the term protein, a word derived from the Greek prōteios, meaning “holding first place • ” Proteins are species-specific • Organ-specific • Within a single organism, muscle proteins differ from those of the brain and liver
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  Amino acids • Buildingblocks of proteins are amino acids, • Small organic molecules that consist of an alpha (central) carbon atom linked to an amino group, a carboxyl group, a hydrogen atom, and a variable component called a side chain • Multiple amino acids are linked together by peptide bonds, thereby forming a long chain • Peptide bonds are formed by a biochemical reaction that extracts a water molecule as it joins the amino group of one amino acid to the carboxyl group of a neighboring amino acid
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  20 types ofamino acids
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  Functions of aminoacids
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  Structure of proteins