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J. Bacteriol., Feb 1995, 1069-1075, Vol 177, No. 4
AG Matthysse, S White and R Lightfoot
A region of the chromosome of Agrobacterium tumefaciens 11 kb long
containing two operons required for cellulose synthesis and a part of a
gene homologous to the fixR gene of Bradyrhizobium japonicum has been
sequenced. One of the cellulose synthesis operons contained a gene (celA)
homologous to the cellulose synthase (bscA) gene of Acetobacter xylinum.
The same operon also contained a gene (celC) homologous to endoglucanase
genes from A. xylinum, Cellulomonas uda, and Erwinia chrysanthemi. The
middle gene of this operon (celB) and both the genes of the other operon
required for cellulose synthesis (celDE) showed no significant homology to
genes contained in the databases. Transposon insertions showed that at
least the last gene of each of these operons (celC and celE) was required
for cellulose synthesis in A. tumefaciens.
Copyright © 1995, American Society for Microbiology
Genes required for cellulose synthesis in Agrobacterium tumefaciens
Department of Biology, University of North Carolina, Chapel Hill 27599- 3280.
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