Dissolution of xylose metabolism in Lactococcus lactis

Article Abstract:

Results demonstrate that inability of some strains of Lactobacillus lactis to metabolize xylose is not attributable to mutations in the xyl operon. Data suggest some indirect events affecting catalytic site structures or accumulation of mutations may be impairing the process.

United States, Physiological aspects, Gene mutations, Gene mutation, Sugars, Carbohydrate metabolism

---

Genetic evidence for a defective xylan degradation pathway in Lactococcus lactis

Article Abstract:

Researchers describe three strains of Lactococcus lactis that contain genes for a mutarotase, a xyloside transporter, and a beta-xylosidase. Although the enzymes are active, none of the strains metabolize xylan or xylobiose.

Genetic aspects

---

Restoration of a defective Lactococcus lactis xylose isomerase

Article Abstract:

The genes which program xylose isomerase (XI) from two Lactococcus lactis subsp. Lactis strains, 210 and IO-1 were combined and the actions of the proteins that appeared in the recombinant strains of Escherichia coli were scrutinized. The beginning of a K407E transformation into the IO-1 S388T XI change restores its action and the dissolvability.

Science & research, Escherichia coli, Microbiology, Properties, Isomerases, Lactococcus

Similar abstracts:

• Abstracts: Evidence for acetyl coenzymeA and cinnamoyl coenzyme A in the anaerobic toluene mineralization pathway in Azoarcus tolulyticus Tol-4
• Abstracts: Genetic diversity and temporal variation in the cyanophage community infecting marine Synechococcus species in Rhode Island's coastal waters
• Abstracts: Simulating the contribution of coaggregation to interspecies hydrogen fluxes in syntrophic methanogenic consortia
• Abstracts: Phylogenetic analysis of bacterial communities in mesophilic and thermophilic bioreactors treating pharmaceutical wastewater
• Abstracts: Effects of high pressure on survival and metabolic activity of Lactobacillus plantarum TMW1.460. Exopolysaccharide and kestose production by Lactobacillus sanfranciscensis LTH2590

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