• Amino acid composition and protein properties
  • You may use DNAMAN to find out protein properties from its amino acid sequence. Choose the Protein | Sequence Composition & Properties command to display the properties of the current protein sequence. The results are shown in a text window. DNAMAN calculates and shows the following properties of the current sequence:

    1. Sequence length and deduced molecular weight (MW).
    2. Theoretic isoelectric point (pI) based on the sequence information.
    3. Theoretic UV absorption of the protein at five wavelengths: 276, 278, 279, 280, 282 nm. The UV absorption is expressed in extinction coefficients by molar concentration (M) and weight concentration (g/L).
    4. Amino acid composition. The composition of each amino acid in a protein sequence can be expressed in weight composition (grams per 100 grams of amino acids) or in molar composition (moles per 100 moles of amino acids).