4 levels of proteins? Describe with detail the molecular
configuration of each level. What molecular and...
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Biology
4 levels of proteins? Describe with detail the molecularconfiguration of each level. What molecular and environmental itemsare required to ensure that proteins are functional?
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1 Proteins are polymers formed from sequences of amino acids The baisc structure of amino acid contains a central carbon atom amino group NH3 at one end carboxyl group COO at other end and a side chain or R group This side chain differs in all 20 naturally occuring amino acids There are four distinct levels of protien structure Primary structure It is the simplest level of protein structure formed of sequence of amino acids in a polypeptide chain The primary structure mainly consists of peptide bond by which the amino acids are held together in a polypeptide chain These peptide bonds are formed during protein synthesis Depending upon the nature of free group at both the ends the two ends of polypeptide chain are referred to as carboxyl terminal Cterminal COOHand amino terminal Nterminal NH2 group Counting of residues starts from Nterminal
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