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. 1989 Mar;63(3):1416–1419. doi: 10.1128/jvi.63.3.1416-1419.1989

Identification of simian immunodeficiency virus SIVMAC env gene products.

F D Veronese 1, B Joseph 1, T D Copeland 1, S Oroszlan 1, R C Gallo 1, M G Sarngadharan 1
PMCID: PMC247843  PMID: 2464704

Abstract

A monoclonal antibody recognizing an antigenic determinant on the env transmembrane protein, gp32 of simian immunodeficiency virus SIVMAC has been developed and designated SF8/5E11. The reactivity of this antibody was found to be type specific, since it did not cross-react with either SIVSMM or SIVMNe transmembrane proteins. The availability of both this antibody and the complete nucleotide sequence of SIVMAC allowed us to define the organization of the env gene products of this virus. Radiolabel sequencing of the amino termini of both gp160 and gp32 confirmed the positions of both cleavage sites predicted by alignment of the inferred amino acid sequences of the SIVMAC and human immunodeficiency virus type 1 env genes. The cleavage site between the signal peptide and the external env glycoprotein resides between the cysteine residue at position 21 and the threonine residue at position 22, starting from the first residue after the env gene initiator methionine. The env precursor polyprotein gp160 is cleaved between arginine 526 and glycine 527 to give rise to the external glycoprotein and the transmembrane of SIVMAC.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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