摘要:
The invention provides novel carbohydrate esters, in particular disaccharide esters, and the methods of their preparation. These compounds find use as microbial media components for the induction of gene expression in microbial fermentation processes.
摘要:
The present invention relates to a process for fermenting Bordetella comprising a) providing a sample of bacteria of a Bordetella species; b) incubating the sample of bacteria of a Bordetella species in a first environment under at least one bvg (Bordetella virulence genes) modulating condition for at least 5 generations, thereby producing a mature culture; c) incubating the mature culture in a second environment in the absence of the at least one bvg modulating condition; wherein step c) occurs after step b).
摘要:
The invention relates generally to a system and method for the treatment of gaseous emissions comprising methane, and in one specific embodiment, to a system and method for the treatment of emissions through the use of methanotrophic microorganism. Certain embodiments of the invention are particularly advantageous because they reduce environmentally-destructive methane emissions and produce harvestable end-products.
摘要:
Eukaryotic protein-coding messenger RNAs and non-coding microRNAs are naturally transcribed by type II RNA polymerases (pol-2) but not prokaryotic RNA polymerases. As a result, current eukaryotic RNA and protein production is performed either using eukaryotic pol-2 promoters in hybridomas or mammalian cells or using prokaryotic promoters in bacterial cells. However, because prokaryotic RNA transcription tends to be error-prone, frequent mutation is a big problem. Also, growing hybridomas or mammalian cells is relatively laborious and costly. To overcome these problems, the present invention provides a novel inducible composition and method for producing eukaryotic RNAs and/or their related peptides/proteins directly using eukaryotic pol-2 promoter-driven gene expression in fast growing bacteria, without the need of changing to prokaryotic promoters or growing hybridomas/mammalian cells. The RNAs and peptides/proteins so obtained can be used to develop drugs, cure diseases, treat tumors/cancers, produce pluripotent stem (iPS) cells, enhance wound healing, and make foods.