Amino acid are the monomer unit or building block of the biopolymer protein amino acid contains both amino and carboxylic acid functional group attach acid are present in nature , in which only 20 are present in protein form all from of life plant, animal or microbial. Essential amino acid- those amino acid which are not synthesized in our body are called essential amino acid like histadine, isoleucine.
Non essential amino acid
Those amino acid which are synthesized in our body are called non essential amino acid like aspargin, aspartic acid, glutamic acid. Proteins are high molecular weight compound made up of number of amino acid. protein are also be defined as high molecular weight polymer of amino acid joined together with peptide bond .protein is the polymerized form of peptide. Proteins are classified in three groups namely simple, conjugatedand derived protein.
Simple proteins are also classified into sub group
Albumin, glutelins, albuminoids, histones, prolamines, globulin, globin protamine. Conjugated proteins are classified as: nucleoprotein, metalloprotein, lipoprotein, phosphoprotein, glycoprotein, chromoprotein. Structures of protein are classified as: primary structure secondary, tertiary, quaternary structure.
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