Re-Lysozyme molar absorption coefficient

RossN at RossN at
Tue Mar 7 07:44:51 EST 1995

CRC's Practical handbook of Biochemistry and Molecular Biology (Fasman, GE,
Ed) (1989 or 1990) has molar extinction coefficients for several proteins,
including different forms of lysozyme. Molar extinction coefficient for egg
white lysozyme ranges from 36,000 to 39,000 M-1 cm-1 (or A(1%) = 24.7 -
26.5 cm-1) depending on buffer. Hope this is helpful,
Neil W. Ross, Ph.D.
National Research Council Canada
Institute for Marine Biosciences
1411 Oxford St., Halifax, NS  B3H 3Z1
(902)426-8402     FAX (902) 426-9413
Email: ROSSN at
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To: proteins at
From: sjt at (Sarah Tilley)
Subject: Lysozyme molar absorption coefficient?
Date: 6 Mar 1995 23:40:17 GMT
Message-Id: <3jg6h1$5nl at>
Reply-To: sjt at (Sarah Tilley)
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I want to check some spurious results I am getting when trying to determine
my protein's concentration at 280nm. I want to use a Lyzozyme standard to
check the spec but I can't find the molar absorption coefficient anywhere.
Does anyone happen to know what it is? Thanks,
Sarah Tilley
sjt at

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