Urra, E. (E.)
- Publications
- item.page.relationships.isContributorAdvisorOfPublication
- item.page.relationships.isContributorOfPublication
2 results
Search Results
Now showing 1 - 2 of 2
- Analysis by coagglutination of the distribution of a 24,000-dalton surface protein in Yersinia isolates(American Society for Microbiology, 1986) Moriyon, I. (Ignacio); Diaz, R. (Ramón); Urra, E. (E.); Toyos, J. (J.)The presence of a 24,000-dalton surface protein in 215 isolates of Yersinia enterocolitica and related species was examined. By coagglutination with the specific antiserum, a 100% correlation with the pathogenic biogroups was found. Thus, this method is useful for the rapid screening of potential pathogenic Y. enterocolitica isolates.
- Characterization of a Yersinia enterocolitica antigen common to enterocolitis-associated serotypes(American Society for Microbiology, 1985) Moriyon, I. (Ignacio); Diaz, R. (Ramón); Urra, E. (E.); Toyos, J. (J.)Yersinia enterocolitica synthesized an exocellular antigen common to the serotypes associated with enterocolitis but absent from other serotypes or from other Yersinia species. Both virulent Ca2+-dependent and avirulent Ca2+-independent isogenic pairs derived from the enterocolitis-associated serotypes synthesized the common antigen. Requirements for the synthesis of this common antigen were (i) the presence of metabolizable sugars and (ii) growth on a solid medium at 37 degrees C. The antigen was identified as a 24,000-dalton protein loosely associated with the cell surface but absent from either the cell envelope or the cytoplasmic fraction.