Human and bovine coronaviruses recognize sialic acid-containing receptors similar to those of influenza C viruses.
AUTOR(ES)
Vlasak, R
RESUMO
Human coronavirus OC43 and bovine coronavirus elute from agglutinated chicken erythrocytes when incubated at 37 degrees C, suggesting the presence of a receptor-destroying enzyme. Moreover, bovine coronavirus exhibits an acetylesterase activity in vitro using bovine submaxillary mucin as substrate similar to the enzymatic activity found in influenza C viruses. Furthermore, pretreatment of erythrocytes with either influenza C virus or bovine coronavirus eliminates subsequent binding and agglutination by either coronaviruses or influenza C virus, whereas binding of influenza A virus remains intact. In addition, hemagglutination by coronaviruses can be inhibited by pretreatment of erythrocytes with Arthrobacter ureafaciens or Clostridium perfringens neuraminidase or by addition of sialic acid-containing gangliosides. These results suggest that, like influenza C viruses, human coronavirus OC43 and bovine coronavirus recognize O-acetylated sialic acid or a similar derivative as cell receptor.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=280463Documentos Relacionados
- Group A Streptococci Bind to Mucin and Human Pharyngeal Cells through Sialic Acid-Containing Receptors
- Discrimination between Sialic Acid-Containing Receptors and Pseudoreceptors Regulates Polyomavirus Spread in the Mouse
- Discrimination between Sialic Acid-Containing Receptors and Pseudoreceptors Regulates Polyomavirus Spread in the Mouse
- Inhibition of Helicobacter pylori binding to gastrointestinal epithelial cells by sialic acid-containing oligosaccharides.
- Hemagglutination-Inhibition: Rapid Assay for Neuraminic Acid-Containing Viruses