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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 

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Mutant analysis shows that alanine racemases from Pseudomonas aeruginosa and Escherichia coli are dimeric.

Alanine racemases are ubiquitous prokaryotic enzymes providing the essential peptidoglycan precursor D-alanine. We present evidence that the enzymes from Pseudomonas aeruginosa and Escherichia coli function exclusively as homodimers. Moreover, we demonstrate that expression of a K35A Y235A double mutation of dadX in E. coli suppresses bacterial growth in a dominant negative fashion.[1]

References

  1. Mutant analysis shows that alanine racemases from Pseudomonas aeruginosa and Escherichia coli are dimeric. Strych, U., Benedik, M.J. J. Bacteriol. (2002) [Pubmed]
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