Yersinia pestis

From DrugPedia: A Wikipedia for Drug discovery

(Difference between revisions)
Jump to: navigation, search
Line 33: Line 33:
==Surface Characteristics==
==Surface Characteristics==
 +
                                                                   
 +
Y. pestis has typical cell wall and whole-cell lipid compositions and an enterobacterial antigen. Its lipopolysaccharide
 +
is characterized as rough, possessing core components but lacking extended O-group side chains; while there is no true capsule,
 +
a carbohydrate-protein envelope, termed capsular antigen or fraction 1 (F1), forms during growth above 33 C (14, 32, 215). This
 +
facultative anaerobe possesses a constitutive glyoxylate bypass and unregulated L-serine deaminase expression but lacks detectable
 +
adenine deaminase, aspartase, glucose 6-phosphate dehydrogenase, ornithine decarboxylase, and urease activities, as well as a possible
 +
lesion in -ketoglutarate dehydrogenase (32, 33, 125).
 +
==Transmission==
 +
Rat flea (Xenopsylla cheopis), the classic vector
 +
                   
 +
                                                                   
Line 39: Line 50:
 +
==References==
-
 
+
[http://www.ncbi.nlm.nih.gov/pubmed/8993858 Yersinia pestis--etiologic agent of plague]
-
 
+
[http://en.wikipedia.org/wiki/Yersinia_pestis Wikipedia]
[http://en.wikipedia.org/wiki/Yersinia_pestis Wikipedia]
[[category: CarboDB]]
[[category: CarboDB]]

Revision as of 06:42, 6 July 2010

Yersinia pestis


Yersinia pestis (formerly Pasteurella pestis) is a Gram-negative rod-shaped bacterium that can infect humans and other animals. Its closest relative is the gastrointestinal pathogen Yersinia pseudotuberculosis, and more distantly Yersinia enterocolitica.



Scientific classification
Kingdom Eubacteria
Phylum Proteobacteria
Class Gammaproteobacteria
Order Enterobacteriales
Family Enterobacteriaceae
Genus Yersinia
Species Y. pestis
Binomial Yersinia pestis


Surface Characteristics

Y. pestis has typical cell wall and whole-cell lipid compositions and an enterobacterial antigen. Its lipopolysaccharide is characterized as rough, possessing core components but lacking extended O-group side chains; while there is no true capsule, a carbohydrate-protein envelope, termed capsular antigen or fraction 1 (F1), forms during growth above 33 C (14, 32, 215). This facultative anaerobe possesses a constitutive glyoxylate bypass and unregulated L-serine deaminase expression but lacks detectable adenine deaminase, aspartase, glucose 6-phosphate dehydrogenase, ornithine decarboxylase, and urease activities, as well as a possible lesion in -ketoglutarate dehydrogenase (32, 33, 125).

Transmission

Rat flea (Xenopsylla cheopis), the classic vector




References

Yersinia pestis--etiologic agent of plague

Wikipedia