"The sole neutralizing determinant on the surface of the virus is the trimeric envelope glycoprotein (Env) spike, which has evolved to evade host antibody responses by incorporating host-derived N-glycans and altering variable domains during replication."
"Elicitation of apex-targeting bNAbs is of particular interest for vaccine design, as such antibodies often require lower levels of somatic hypermutation than other HIV bNAbs to gain broad neutralizing activity."
"The glycan-shrouded apex of the Env spike is recognized by the bNAb HCDR3s that penetrate the glycan shield interacting with both the surrounding glycans and the semi-conserved basic C-strand of V2."
The development of an effective prophylactic HIV vaccine is a high-priority public health goal, complicated by chronic HIV replication that drives immune evasion. The trimeric envelope glycoprotein (Env) spike is the sole neutralizing determinant, evolving to evade host responses. Broadly neutralizing antibodies (bNAbs) can recognize vulnerabilities in the glycan shield and protein structures. Apex-targeting bNAbs are of particular interest for vaccine design, requiring lower somatic hypermutation levels. The maturation of these antibodies is influenced by co-evolution with the virus, involving both glycan and protein interactions.
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