Once three CD4 receptors are secured by the three gp120 proteins, they expose sites that are recognized by a host co-receptor, and then a needle-like structure emerges from the stem regions of the ...

The T-cell co-receptor CD4 is required for T-cell activation ... intracellular adhesion molecules and intracellular signaling proteins all form very organized, spatially segregated supra-molecular ...

Nor were the changes in protein structure particularly shocking or surprising ... of the transgenic amylase inhibitor in peas induces a CD4 + T-helper cell type 2 (Th2) inflammatory response ...