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What is the molecular weight (mw) of horseradish peroxidase (HRP)?
Posted June 25, 2018
Answer
44 kDa
The molecular weight of horseradish peroxidase (HRP) is about 44 kDa. It includes the polypeptide chain hemin (33,890 Daltons), Ca2+ (about 700 Daltons), and carbohydrate (about 9,400 Daltons). At least seven isozymes of HRP exist. The isoelectric point for horseradish peroxidase isozymes ranges from 3.0 - 9.0.
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