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Table of contacts for interface of A- and B-subunits
*, Contacts were determined with the CCP4 program CONTACT (33) and at a cutoff of 4.0 ′. van der Waals interactions (VDW) are defined as non-H-bond contact distances of 4 ′ or less; H-bond interactions are defined as contact distances of 3.5 ′ or less.
