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Primary Structure

Written out in a line N-C-O

Secondary Structure

3 dimensional structure that you can still write in linear form: VALTIVL

Tertiary Structure

The 3-dimensional makeup of a protein that cannot be written in linear form.

Covalent bond

The strongest individual bond.

Basic residues

Residues that will take a positive charge.

Acidic residues

Residues that will take a negative charge.

Disulfide bridge

The strongest possible structure between cysteine residues.

Quaterny structure

A combination of two or more chains.


Polar amino acids are ______.


Nonpolar amino acids are ______.

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