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Four views of the asymmetric unit of the crystals, which are composed of NCS, two-fold related molecules of the β subunit of luteinizing hormone. In (a), (b) and (d) the NCS axis is evident, in (c) is an oblique view. The close association of the oligosaccharides, covalently attached at asn 13 (Baenziger and Green, 1988), from the two molecules is apparent.
