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Biology
Undergraduate 1
02/07/2014

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Term
Protein structure
Definition
The structure of proteins is fundamental for their function
Term

Primary 

Secondary 

Tertiary 

Quaternary

Definition
Proteins  have four levels of structure
Term
Primary structure
Definition
sequence of amino acids joined by peptide bonds. This sequnce dicates the shape of a protein unique for each protein
Term
Secondary structure
Definition
regular folding patterns created by hydrogen bonding of polypeptide backbone. Either alpha helix or beta pleated sheets
Term
Tertiary Structure
Definition

3D Structure of polypeptide chain 

Determined by various interaction between side chains 

H-bonds 

disulfide 

Ionic bonds

Hydrophobic interactions 

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