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15 Cards in this Set
- Front
- Back
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PRIMARY STRUCTURE
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The specific sequence of amino acids in a polypeptide or protein
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Alpha-Helix
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A single protein chin coiled in a spiral with a right handed (clockwise) twist
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Beta-Sheet
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the polypeptide chain is held in place by hydrogen bonds between pairs of peptide unity along neighboring backbone segments
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Protein Denaturation
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the loss of secondary tertiary, or quaternary protein structure due to disruption of non covalent interactions and or disulfide bonds that leaves peptide bonds and primary structure intack
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AGENTS THAT CAUSES DENATURATION
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Heat
Mechanical Agitation Detergents Organic compounds Ph Change Inorganic Salts |
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Primary Structure
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written with the amino terminal amino acid on the left and carboxyl terminal amino acid on the right.
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Secondary Structure
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the regular repeating three dimensional structures held togethery by hydrogen bonding between the backbone atoms with a chain or in adjacent chain.
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Tertiary Structure
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is the overall three dimensional shape of a folded protein
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Quaternary Structure
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is the structure that incorporates more than one peptide chain
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Fibrous Protein
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tough and insoluble protein which the chain forms long fibers or sheets.Secondary structure is responsible for the shape
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Globular Protein
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water soluble proteins whose chain sare folded into compact, globular shape with hydrophilic groups on the outside.
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The 2 factors that determine the function of proteins
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1. the type of amino acids
2. the sequence or order that the amino acid units are connected together |
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Collagen
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example of fibrous protein that found in tendons, bones, cornea, and some connective tissue
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Elastin
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example of fibrous protein that found in blood vessels and ligaments where the ability to stretch is needed
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Fibrin
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found in blood clots
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