3R4D:
reference: Crystal structure of mouse coronavirus receptor-binding domain complexed with its murine receptor., Peng G, Sun D, Rajashankar KR, Qian Z, Holmes KV, Li F, Proc Natl Acad Sci U S A. 2011 Jun 28;108(26):10696-701. Epub 2011 Jun 13. PMID: 21670291

This OCA Structure page
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