ISSN:
1365-2958
Source:
Blackwell Publishing Journal Backfiles 1879-2005
Topics:
Biology
,
Medicine
Notes:
Erwinia Stewartii contains a large cluster of wts genes that are required by this bacterium for pathogenicity on com plants. Three complementation groups within the right half of this cluster, wtsA, wtsC, and ivtsB, were previously identified. In this study, WtsA was found to be a positive activator of ivfsB::lacZ expression. The WtsA locus was sequenced and a single open reading frame is present within the wtsA locus, which has the capacity to encode a 323 amino acid polypeptide. A corresponding 38kDa protein was observed in Escherichia coli minicells containing the cloned wtsA gene. The predicted WtsA polypeptide has significant similarity to HrpS from Pseudomonas syringae pv. phaseolicola, as well as other members of the NtrC class of prokaryotic regulatory proteins. Similar to other genes activated by NtrC regulators, wtsB::lacZ expression in E. coli was dependent upon rpoN.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1111/j.1365-2958.1993.tb01709.x
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