3LRS:
reference: Crystal structure of PG16 and chimeric dissection with somatically related PG9: structure-function analysis of two quaternary-specific antibodies that effectively neutralize HIV-1., Pancera M, McLellan JS, Wu X, Zhu J, Changela A, Schmidt SD, Yang Y, Zhou T, Phogat S, Mascola JR, Kwong PD, J Virol. 2010 Aug;84(16):8098-110. Epub 2010 Jun 10. PMID: 20538861

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