Tryptophan

3-letter Code
Trp
1-letter Code
W
Side-Chain Polarity
  • Nonpolar
Side-Chain Class
  • Aromatic
Side-Chain Charge
Neutral
pI
5.89
pKa (α-COOH)
2.46
pKa (α-NH3+)
9.41
Avg. Residue Mass (Da)
186.21
Monoisotopic Mass (Da)
186.08
MW (Da)
204.23
Hydropathy Index
-0.90
van der Waals Volume
163
Optical Properties
Max AbsorptionExtinction Coefficient
280
5.60
219
47.00
Wikipedia Entry
Ingredient(s) Using This Amino Acid