Proteins Flashcards
Types of Denaturation
Temperature
pH
Chemical
Enzymatic
Temperature Denaturation
Destroys 2,3,4 structure of proteins
Primary structure preserved
pH Denaturation
Destruction of ionic bonds
Chemical Denaturation
Disrupts hydrogen bonds
Disrupts 2,3,4 structure
Enzymatic Denaturation
Bread down to peptide bond
Digestion
Primary Structure
Determined by peptide bonds
Linear sequence
Secondary Structure
Alpha helixes and beta sheets
hydrogen bonds
Tertiary structure
Proteins folded onto each other
Ionic, hydrogen bonds, van der waals, disulfide
Quaternary Structure
3D structure w/multiple polypeptides
Non covalent interactions
How can you break a peptide bond
Acid Hydrolysis
Proteolysis
Acid Hydrolysis
Use of strong acids
When combined with heat it cleaves the peptide bonds
Non-specific
Proteolysis
Specific cleavage of peptide bond
Uses protein enzyme (protease)