20 Amino Acids

Learn the 20 Amino Acids, including their 1 and 3 letter abbreviations and their chemical characteristics.

Glycine (Gly/G)

Glycine (Gly/G)

Non-polar, hydrophobic

Alanine (Ala/A)

Non-polar, hydrophobic

Valine (Val/V)

Non-polar, hydrophobic

Proline (Pro/P)

Non-polar, hydrophobic

Leucine (Leu/L)

Non-polar, hydrophobic

Isoleucine (Ile/I)

Non-polar, hydrophobic

Methionine (Met/M)

Non-polar, hydrophobic

Tryptophan (Trp/W)

Non-polar, hydrophobic

Phenylalanine (Phe/F)

Non-polar, hydrophobic

Serine (Ser/S)

Polar (uncharged), hydrophilic

Threonine (Thr/T)

Polar (uncharged), hydrophilic

Tyrosine (Tyr/Y)

Polar (uncharged), hydrophilic

Cysteine (Cys/C)

Polar (uncharged), hydrophilic

Asparagine (Asn/N)

Polar (uncharged), hydrophilic

Glutamine (Gln/Q)

Polar (uncharged), hydrophilic

Lysine (Lys/K)

Polar (positively charged), hydrophilic

Arginine (Arg/R)

Polar (positively charged), hydrophilic

Histidine (His/H)

Polar (positively charged), hydrophilic

Aspartate (Asp/D)

Polar (negatively charged), hydrophilic

Glutamate (Glu/E)

Polar (negatively charged), hydrophilic