6NJ2:
reference: Immobilization of Proteins with Controlled Load and Orientation., Bednar RM, Golbek TW, Kean KM, Brown WJ, Jana S, Baio JE, Karplus PA, Mehl RA, ACS Appl Mater Interfaces. 2019 Sep 26. doi: 10.1021/acsami.9b12746. PMID: 31525993

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