Implications of the xylQ gene of TOL plasmid pWW102 for the evolution of aromatic catabolic pathways

Article Abstract:

Toluene, m-xylene and p-xylene are utilized by the O2C2 strain of Pseudomonas putida as energy and carbon sources by metabolizing them to benzoate and methylbenzoates. Cloning and characterization of the genes that encodes the catabolic enzymes in this reaction reveal that the genes are arranged in two blocks, a meta pathway operon and an upper pathway operon. The relative positions of the genes at the TOL plasmid appears to be most closely related to that in plasmid pWW53. The implications of these findings on the evolution of the aromatic catabolic pathways are discussed.

Pseudomonas putida, Aromatic compounds

---

Identification of a region responsible for binding to the cell wall within the S-layer protein of Clostridium thermocellum

Article Abstract:

A research was conducted to identify and evaluate the protomer forming the S-layer of Clostridium thermocellum. Results show that the protomer is a 140 kDa protein that is not covalently bound to the cell wall. A corresponding gene that was cloned and sequenced has an amino acid composition that is comparable with an exocellular glycoprotein. Moreover, cell walls derived from C. thermocellum cells are observed to contain a polypeptide of 209 residues.

Clostridium

---

Similar abstracts:

• Abstracts: An analysis of the instability kinetics of plasmid pHSG415 during continuous culture of Escherichia coli. Biochemical genetics of a natural population of Escherichia coli: seasonal changes in alleles and haplotypes
• Abstracts: Bacillus thuringiensis protoxin: location of toxic border and requirement of non-toxic domain for high-level in vivo production of active toxin
• Abstracts: Variation in the human genome. Evolutionary developmental biology: where is it going? Novartis Foundation symposium: genetics and tuberculosis, Cape Town, November 18-20, 1997
• Abstracts: Worm sperm and advances in cell locomotion. Reconstruction in vitro of the motile apparatus from the amoeboid sperm of Ascaris shows that filament assembly and bundling move membranes
• Abstracts: The origin and early evolution of life: prebiotic chemistry, the pre-RNA world, and time. Histidine biosynthetic pathway and genes: structure, regulation, and evolution

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.