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Journal of Bacteriology, August 2002, p. 4316-4320, Vol. 184, No. 15
0021-9193/02/$04.00+0 DOI: 10.1128/JB.184.15.4316-4320.2002
Copyright © 2002, American Society for Microbiology. All Rights Reserved.
Characterization of a Bacillus subtilis Thermosensitive Teichoic Acid-Deficient Mutant: Gene mnaA (yvyH) Encodes the UDP-N-Acetylglucosamine 2-Epimerase
Blazenka Soldo, Vladimir Lazarevic, Harold M. Pooley, and Dimitri Karamata*
Institut de Génétique et de Biologie Microbiennes, CH-1005 Lausanne, Switzerland
Received 2 January 2002/
Accepted 26 April 2002
The Bacillus subtilis thermosensitive mutant ts-21 bears two C-G
T-A transitions in the mnaA gene. At the nonpermissive temperature it is characterized by coccoid cell morphology and reduced cell wall phosphate content. MnaA converts UDP-N-acetylglucosamine into UDP-N-acetylmannosamine, a precursor of the teichoic acid linkage unit.
* Corresponding author. Mailing address: Institut de Génétique et de Biologie Microbiennes, rue César-Roux 19, CH-1005 Lausanne, Switzerland. Phone: 41 21 320 60 75. Fax: 41 21 320 60 78. E-mail:
dimitri.karamata{at}igbm.unil.ch.
Journal of Bacteriology, August 2002, p. 4316-4320, Vol. 184, No. 15
0021-9193/02/$04.00+0 DOI: 10.1128/JB.184.15.4316-4320.2002
Copyright © 2002, American Society for Microbiology. All Rights Reserved.
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