amino acid weight confusion

I'm taking a class that uses stepic.org. We're given a list of amino acid weights:

For example, it gives the weight of A as 71 Daltons

Biopython gives a weight of 89 (units ?)

In what units are the Biopython weights? Can I get Daltons?

Thanks,
Jim

acid weight amino

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updated 5.4 years ago by Ram

• written 11.8 years ago by jsbrava •

1 answer

water has a molecular mass of 18 and a water molecule is lost for every peptide bond that is formed during protein synthesis

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updated 5.4 years ago by Ram

• written 11.8 years ago by russhh

OK, for my purposes I need to subtract the 18 for water.

Thanks!

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updated 5.4 years ago by Ram

• written 11.8 years ago by jsbrava •

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