Comment on

• Atomic structure of a fragment of human CD4 containing two immunoglobulin-like domains.

  Wang JH, Yan YW, Garrett TP, Liu JH, Rodgers DW, Garlick RL, Tarr GE, Husain Y, Reinherz EL, Harrison SC. Wang JH, et al. Nature. 1990 Nov 29;348(6300):411-8. doi: 10.1038/348411a0. Nature. 1990. PMID: 1701030
• Crystal structure of an HIV-binding recombinant fragment of human CD4.

  Ryu SE, Kwong PD, Truneh A, Porter TG, Arthos J, Rosenberg M, Dai XP, Xuong NH, Axel R, Sweet RW, et al. Ryu SE, et al. Nature. 1990 Nov 29;348(6300):419-26. doi: 10.1038/348419a0. Nature. 1990. PMID: 2247146 Free PMC article.