1887

Abstract

Summary: Electron microscopy and SDS-PAGE have been used to analyse the polypeptide and antigenic composition of the sheath and core components of the axial filament of . The sheath contains a major 37 kDa polypeptide which was solubilized by a combination of trypsin and urea treatments with concurrent loss of binding of anti-37 kDa monoclonal antibody. These studies also indicated some antigenic heterogeneity within the axial filament population. Trypsin treatment alone removed a number of antigenic determinants from the axial filament but left others intact, suggesting differences in their location within the sheath structure. A second 31·5 kDa polypeptide may also be associated with the sheath. The axial filament core comprises at least two components, an antigenically dominant 33·5 kDa polypeptide and a second of 34 kDa. The structure of the axial filament in and biotype was similar, but antigenic cross-reactivity of sheath and core components was incomplete.

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/content/journal/micro/10.1099/00221287-133-6-1397
1987-06-01
2019-10-24
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http://instance.metastore.ingenta.com/content/journal/micro/10.1099/00221287-133-6-1397
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