3Q6F:
reference: Structural Analysis of Human and Macaque mAbs 2909 and 2.5B: Implications for the Configuration of the Quaternary Neutralizing Epitope of HIV-1 gp120., Spurrier B, Sampson JM, Totrov M, Li H, O'Neal T, Williams C, Robinson J, Gorny MK, Zolla-Pazner S, Kong XP, Structure. 2011 May 11;19(5):691-9. PMID: 21565703

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