Principal neutralizing domain of the human immunodeficiency virus type 1 envelope protein.
AUTOR(ES)
Javaherian, K
RESUMO
The principal neutralizing determinant of human immunodeficiency virus type 1 (HIV-1) is located in the external envelope protein, gp120, and has previously been mapped to a 24-amino acid-long sequence (denoted RP135). We show here that deletion of this sequence renders the envelope unable to elicit neutralizing antibodies. In addition, using synthetic peptide fragments of RP135, we have mapped the neutralizing determinant to 8 amino acids and found that a peptide of this size elicits neutralizing antibodies. This sequence contains a central Gly-Pro-Gly that is generally conserved between different HIV-1 isolates and is flanked by amino acids that differ from isolate to isolate. Antibodies elicited by peptides from one isolate do not neutralize two different isolates, and a hybrid peptide, consisting of amino acid sequences from two isolates, elicits neutralizing antibodies to both isolates. By using a mixture of peptides of this domain or a mixture of such hybrid peptides the type-specificity of the neutralizing antibody response to this determinant can perhaps be overcome.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=297927Documentos Relacionados
- Induction of antibodies to the human immunodeficiency virus type 1 by immunization of baboons with immunoglobulin molecules carrying the principal neutralizing determinant of the envelope protein.
- Identification of the principal neutralizing determinant of human immunodeficiency virus type 1 as a fusion domain.
- Humoral response to oligomeric human immunodeficiency virus type 1 envelope protein.
- Autologous antibody response against the principal neutralizing domain of human immunodeficiency virus type 1 isolated from infected humans.
- Studies of the conformation-dependent neutralizing epitopes of simian immunodeficiency virus envelope protein.
