Studies on Vi Antigen
Open Access
- 1 July 1954
- journal article
- Published by Oxford University Press (OUP) in The Journal of Immunology
- Vol. 73 (1) , 16-22
- https://doi.org/10.4049/jimmunol.73.1.16
Abstract
Summary: The Vi antigen was isolated by the same method from 3 generically different bacterial species, viz. E. coli, P. ballerup and S. typhosa. A comparison was made of some of the chemical and physical properties of the purified antigens. These include nitrogen, acetyl groups, neutral equivalent, viscosity, infrared spectra, electrophoretic mobilities and sedimentation constants. Except for significant differences in viscosity, the analytical values for the three isolated antigens were similar. The average molecular weight of the Vi antigen derived from E. coli was estimated at 1,000,000.Keywords
This publication has 0 references indexed in Scilit: