NovoPro
Peptide Property Calculator

This online tool calculates chemical formula, molecular weight, extinction coefficient, net charge at neutral pH, isoelectric point, grand average of hydropathicity(GRAVY).


It also provides a conversion between single and triple letter amino acid code; peptide titration plot, net charge vs pH.


N-terminal modification: C-terminal modification:
Disulfide Bridge (Format: 1-8, 5-16):

Instructions: When input the custom peptide sequence data, please only use the code specified in the Amino Aicd Code Table. You can use single-letter-code
eg: DYKDDDDK
or three-letter-code,
eg: CysAspTyrLysAspCysAspAspAspLys
any white space characters will be removed. Note that D-amino acids are prefixed with d and in parentheses, e.g. (dA) for D-form of Alanine.
Input peptide sequence below:
Amino acid abbreviations:

Other modifications:
  • Abz/DNP
  • Abz/Tyr (3-NO2)
  • DABCYL
  • DABCYL/Glu(EDANS)-NH2
  • Dabsyl
  • Dansyl
  • EDANS/DABCYL
  • Glu(EDANS)-NH2
  • Head to tail Cyclic
  • MCA/DNP
  • p-Nitroanilide
  • Succinylation
  • Tyr (3-NO2)
  • 1-Pyrenemethylamine
  • Biotin
  • BOC
  • Fluorescein
  • Myristoylation

Show abbreviations