4OCX:
reference: Water channel in the binding site of a high affinity anti-methotrexate antibody., Gayda S, Longenecker KL, Manoj S, Judge RA, Saldana SC, Ruan Q, Swift KM, Tetin SY, Biochemistry. 2014 Jun 17;53(23):3719-26. doi: 10.1021/bi5001382. Epub 2014 Jun, 5. PMID: 24832237

This OCA Structure page
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