Experts and Doctors on lactones in Hefei, Anhui Sheng, China
Locale: Hefei, Anhui Sheng, China
Zhang T, Li W, Xu Z, Liu Q, Ma Q, Jameel H, et al
. Catalytic conversion of xylose and corn stalk into furfural over carbon solid acid catalyst in Î³-valerolactone. Bioresour Technol. 2016;209:108-14 pubmed publisher
..What's more, a 60.6% furfural yield from corn stalk was achieved in 100min at 200Â°C. The recyclability of the sulfonated carbon catalyst was perfect, and it could be reused for 5times without the loss of furfural yields. ..
Xue T, Zhao L, Sun H, Zhou X, Sun B. LsrR-binding site recognition and regulatory characteristics in Escherichia coli AI-2 quorum sensing. Cell Res. 2009;19:1258-68 pubmed publisher
..Furthermore, in agreement with the conclusion that phosphorylated AI-2 can relieve the repression of LsrR in previous studies, our data show that phospho-AI-2 renders LsrR unable to bind to its own promoter in vitro. ..
Li M, Tang W, Zeng F, Lou L, You T. Semi-synthesis and biological activity of gamma-lactones analogs of camptothecin. Bioorg Med Chem Lett. 2008;18:6441-3 pubmed publisher
..The antitumor activity of these compounds was lower than SN-38, only compound 12c was found to be close to the activity of Topotecan. The structure-activity relationship (SAR) of these analogs was studied and discussed...
Zhao L, Xue T, Shang F, Sun H, Sun B. Staphylococcus aureus AI-2 quorum sensing associates with the KdpDE two-component system to regulate capsular polysaccharide synthesis and virulence. Infect Immun. 2010;78:3506-15 pubmed publisher
..aureus. This regulation occurred via the phosphorylation of KdpE binding to the cap promoter...
Chen Y, Wang C, Hu M, Pan J, Chen J, Duan P, et al
. Effects of ginkgolide A on okadaic acid-induced tau hyperphosphorylation and the PI3K-Akt signaling pathway in N2a cells. Planta Med. 2012;78:1337-41 pubmed publisher
Xue T, Zhao L, Sun B. LuxS/AI-2 system is involved in antibiotic susceptibility and autolysis in Staphylococcus aureus NCTC 8325. Int J Antimicrob Agents. 2013;41:85-9 pubmed publisher
..In addition, a luxS mutant exhibited decreased autolysis and upregulated vancomycin resistance-associated VraRS two-component regulatory system. This finding may provide novel clues for antimicrobial therapy in S. aureus infection...
Wu M, Tao Y, Liu X, Zang J. Structural basis for phosphorylated autoinducer-2 modulation of the oligomerization state of the global transcription regulator LsrR from Escherichia coli. J Biol Chem. 2013;288:15878-87 pubmed publisher
..Based on these observations, we propose that phosphorylated autoinducer-2 triggers the disassembly of the LsrR tetramer to activate the transcription of its target genes. ..
Li Y, Ding Y, Wang J, Su Y, Wang X. Pd-catalyzed C-H lactonization for expedient synthesis of biaryl lactones and total synthesis of cannabinol. Org Lett. 2013;15:2574-7 pubmed publisher
Luo Z, Du H, Li L, An M, Zhang Z, Wan X, et al
. Fuzhuanins A and B: the B-ring fission lactones of flavan-3-ols from Fuzhuan brick-tea. J Agric Food Chem. 2013;61:6982-90 pubmed publisher
..48 ?M. None of the isolated compounds showed any inhibition activity against the enteric pathogenic microbes at 800 ?g/mL by the hole plate diffusion method. ..