General Features of Protiens

A protein is a unique three dimensional biologic polymer constructed from 20 different monomers called aminic concourse unpleasant. Some of aminic acids ar glycine, alanine, valine, leucine etcetera There are three morphological levels in the strain of a protein called primary, secondary, and tertiary social structure. Primary structure is the unique genetically coded sequence of aminic acids within a protein. Amino acids are bonded by peptide bond which links the amino group theme of wizard amino acid with the carboxyl group of another, yielding a polymer of amino acid called polypeptide. The polypeptide varies greatly in length from a a few(prenominal) to thousand amino acid and has a amino group at one termination and carboxyl group at the other end. Sanger, 1940, first sequenced insulins amino acid first. veritable(a) a slight deviation from the sequence of amino acids raft severely affect a proteins function by fix the proteins conformation like a single magn etic declination of amino acid in hemoglobin case sickle kiosk anemia, a blood disorder that may be transferred from genesis to generation. Secondary structure involves the coiling of folding of the polypeptide backbone. An alpha helix is a delicate coil produced by hydrogen bonding amidst every fourth peptide bond in the polypeptide chain.

An congressman of a alpha helix containing protein is alpha keratin, the structural protein of the vibrissa which has alpha helix through out its length. A pleated unchangeable gear is excessively held by repeated hydrogen bonds on the proteins backbone. An example of pleated winding-sheet is the structural protein of the silk. In an globul ar protein pleated sheet make up the core of! the protein, and alpha helix forms the few stretches which is separated by the non helical region. Tertiary structure of a protein is formed by the interactions surrounded by the various aspect chains of the constituent amino acids. Different... If you requirement to get a full essay, order it on our website: OrderEssay.net

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