Proteins Flashcards
(9 cards)
Protein Definition
Organized complex made up of amino acids
Protein functions (11) Fb CaRSS BE SHIT
Fluid balance
Cell adhesion
Receptor
Signaling
Storage
Buffer
Enzymes
Structural proteins
Hormones pepetide
Immuno proteins
Transport proteins
Protein Structure (4)
Primary
Secondary
Tertiary
Quaternary
Primary Structure
Polypeptide backbone plus side chain linked by peptide bonds
Secondary Structure
One primary structure will bond between its own amino acids by H-bonds forming an Alpha-Helix, Beta-pleated sheets, or random coiling
Secondary Structure- alpha helix
Coiling at every 4th amino acid by H-bonds
Secondary Structure b-pleated sheets
Protein folds back on itself
Tertiary Sturcture
Along the peptide backbone amino acids will bind and loop with each other at different locations
- hydrophobic cluster
- electrostatic attraction
- disulfide bridge
- H bonds
Quaternary Structure
Two or more polypeptide units i.e. hemoglobin