2GB1:
reference: A novel, highly stable fold of the immunoglobulin binding domain of streptococcal protein G., Gronenborn AM, Filpula DR, Essig NZ, Achari A, Whitlow M, Wingfield PT, Clore GM, Science 1991 Aug 9;253(5020):657-61. PMID: 1871600

This OCA Structure page
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