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15 Cards in this Set

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