R groups of proteins

cellular biology

Polar charged group

Contain R groups that act as organic acids or bases and can form ionic bonds

Polar charged amino acids

Lysine, Arginine, aspartic acid, glutamic acid

Polar charged amino acids are fully charges at…

pH 7

Histidine is a partially charged amino acid in what group

Polar charged

Polar uncharged

R groups weakly acidic or basic

Polar uncharged amino acids are…

Not charged at pH 7

Polar uncharged amino acids can…

Form H bonds

Polar uncharged amino acids

Serine, threonine, and tyrosine

Acidic amino acids

Asparatic acid and glutamic acid

Nonpolar amino acids

Alanine, valine, leucine, isoleucine, tryptophan, phenylalanine, and methionine

Nonpolar amino acids are…

Hydrophobic

Glycine

Hydrophobic or hydrophillic

Proline

Forms ring with amino group creating imino acid, hydrophobic

Cysteine

Reactive SH, forms disulfide bridge via oxidation