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Journal of Bacteriology, July 2002, p. 4039-4043, Vol. 184, No. 14
0021-9193/02/$04.00+0     DOI: 10.1128/JB.184.14.4039-4043.2002
Copyright © 2002, American Society for Microbiology. All Rights Reserved.

Activity of Sinorhizobium meliloti NodAB and NodH Enzymes on Thiochitooligosaccharides

Audrey M. Southwick,1,{dagger} Lai-Xi Wang,2 Sharon R. Long,1* and Yuan C. Lee3

Department of Biological Sciences, Stanford University, Stanford, California 94305-5020,1 Department of Biology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139,2 Department of Biology, The Johns Hopkins University, Baltimore, Maryland 212183

Received 7 August 2001/ Accepted 16 April 2002

Rhizobium bacteria synthesize signal molecules called Nod factors that elicit responses in the legume root during nodulation. Nod factors, modified N-acylated ß-(1,4)-N-acetylglucosamine, are synthesized by the nodulation (nod) gene products. We tested the ability of three Sinorhizobium meliloti nod gene products to modify Nod factor analogs with thio linkages instead of O-glycosidic bonds in the oligosaccharide backbone.

* Corresponding author. Mailing address: Department of Biological Sciences, Stanford University, Stanford, CA 94305-5020. Phone: (650) 723-3232. Fax: (650) 725-8309. E-mail: srl{at}leland.stanford.edu.

{dagger} Present address: Stanford Genome Technology Center, Department of Biochemistry, Palo Alto, CA 94304

Journal of Bacteriology, July 2002, p. 4039-4043, Vol. 184, No. 14
0021-9193/02/$04.00+0     DOI: 10.1128/JB.184.14.4039-4043.2002
Copyright © 2002, American Society for Microbiology. All Rights Reserved.



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