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Re: [ccp4bb]: interaction surface area

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>   This is not a strict ccp4 question. But I appreciate if
> someone can give me some hints on how to calculate the
> interaction surface area between two protein molecules.

Use CCP4 program areaimol to calculate the accessible surface area for
each of the individual proteins and than calculate the surface of the
complex. The buried surface area is S(1) + S(2) - S(1-2) and the
interaction surface area is half of this value.