This is regarding EthanĀ“s point, particularly:
>2) the protein has crystallized as a monomer even though it
>[sometimes] exists in solution as a dimer. The interface
>seen in the crystal is not the "real" dimer interface and
>thus the PISA score is correct.
I see the same exact interface in a crystal of a close homologue that belongs to a different space group (hexagonal vs tetragonal system)
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