4LAJ:
reference: Heavy chain-only IgG2b-llama antibody effects near-pan HIV-1 neutralization by recognizing a CD4-induced epitope that includes elements of both CD4- and co-receptor-binding sites., Acharya P, Luongo T, Georgiev I, Matz J, Schmidt SD, Louder MK, Kessler P, Yang Y, McKee K, O'Dell S, Chen L, Baty D, Chames P, Martin L, Mascola JR, Kwong PD, J Virol. 2013 Jul 10. PMID: 23843638

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