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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Identification of a novel consensus sequence at the cleavage site of the Lassa virus glycoprotein.

The Lassa virus glycoprotein consists of an amino-terminal and a carboxy-terminal cleavage fragment designated GP-1 and GP-2, respectively, that are derived by proteolysis from the precursor GP-C. The membrane-anchored GP-2 obtained from purified virions of the Josiah strain revealed the N-terminal tripeptide GTF(262) when analyzed by Edman degradation. Upstream of this site, GP-C contains the tetrapeptide sequence RRLL(259), which is conserved in all Lassa virus isolates published to date. Systematic mutational analysis of vector-expressed GP-C revealed that the motif R-X (L/I/V)-L(259) (where X stands for L, I, or V) is essential for cleavage of the peptide bond between leucine(259) and glycine(260). This cleavage motif is homologous to the consensus sequence recognized by a novel class of cellular endoproteases which have so far not been implicated in the processing of viral glycoproteins.[1]


  1. Identification of a novel consensus sequence at the cleavage site of the Lassa virus glycoprotein. Lenz, O., ter Meulen, J., Feldmann, H., Klenk, H.D., Garten, W. J. Virol. (2000) [Pubmed]
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