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Do you have an extinction coefficient for product number ab63978, Streptolysin O protein?
Asked on Apr 13 2012
Thank you for contacting Abcam.
To find the extinction coefficient, I used the follwing link:
For Streptolysin O protein ;
There are 571 Amino acids and Molecular Weight is 63.64 KiloDaltons
Charge is 3.5 assuming N and C termini are not blocked
There are 22 Tyrosines and 7 Tryptophans
The Molar Extinction Coefficient is 71280
The absorbance of a 1mg/ml solution at 280nm is 1.120
Please let me know if there is anything else I can help you with.
Answered on Apr 13 2012