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Infect Immun. 1972 August; 6(2): 174-177
Copyright © 1972 American Society for Microbiology. All Rights Reserved.
Institute of Virology, Royal Veterinary College and National Veterinary Institute, Stockholm, Sweden
ABSTRACT
Three samples of bovine nasal secretion were each separated into a sol phase and a surface gel phase. In all samples, the gel phase contained an approximately four times greater amount of bound N-acetylneuraminic acid (NANA) than the sol phase. From the gel phase, bound NANA could be released by exposure to parainfluenza-3 virus neuraminidase. The surface gel appears to be a natural substrate for this enzyme.
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