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Journal List > J Bacteriol > v.101(3); Mar 1970

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J Bacteriol. 1970 March; 101(3): 763–769.
PMCID: PMC250388
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Comparative Allostery of 3-Deoxy-d-Arabino-Heptulosonate-7-Phosphate Synthetase as a Molecular Basis for Classification
Roy A. Jensen and Sherry L. Stenmark
Department of Microbiology, Baylor College of Medicine, Houston, Texas 77025
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Abstract
The allosteric pattern of control for 3-deoxy-d-arabino-heptulosonate 7-phosphate (DAHP) synthetase has previously been shown to be strongly conserved among the member species of a given genus in bacteria. The implications of this finding as a procedural tool of bacterial phylogeny were pursued by a study of two organisms, Sporosarcina ureae and Aeromonas formicans, the taxonomic positions of which have been historically controversial. S. ureae has characteristics of both Bacillaceae and Micrococcaceae, and A. formicans has characteristics of both Enterobacteriaceae and pseudomonads. Since the patterns of control for DAHP synthetase in all four of these microbial groups are different from one another but internally homogeneous within each group, the results obtained from the two test organisms were unambiguous. It was concluded that S. ureae is properly classified within Bacillaceae, probably deserving generic rank, and that A. formicans belongs with the family Enterobacteriaceae.
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Selected References
These references are in PubMed. This may not be the complete list of references from this article.
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