| Literature DB >> 3681988 |
R J de Groot1, W Luytjes, M C Horzinek, B A van der Zeijst, W J Spaan, J A Lenstra.
Abstract
The amino acid sequences of the spike proteins from three distantly related coronaviruses have been deduced from cDNA sequences. In the C-terminal half, an homology of about 30% was found, while there was no detectable sequence conservation in the N-terminal regions. Hydrophobic "heptad" repeat patterns indicated the presence of two alpha-helices with predicted lengths of 100 and 50 A, respectively. It is suggested that, in the spike oligomer, these alpha-helices form a complex coiled-coil, resembling the supersecondary structures in two other elongated membrane proteins, the haemagglutinin of influenza virus and the variable surface glycoprotein of trypanosomes.Entities:
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Year: 1987 PMID: 3681988 PMCID: PMC7131189 DOI: 10.1016/0022-2836(87)90422-0
Source DB: PubMed Journal: J Mol Biol ISSN: 0022-2836 Impact factor: 5.469