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Apolipoprotein F (ApoF) inhibits cholesteryl ester transfer protein (CETP) activity and plays an important role in lipid metabolism. In the present study, the full-length human ApoF promoter was cloned, and the molecular mechanism of the regulation of ApoF was investigated. The ApoF promoter displayed higher activities in hepatoma cell lines, and the −198 nt to +79 nt promoter region contained the...
Metabotropic glutamate receptors (mGlus) are G-protein-coupled receptors playing an important role in the central nervous system (CNS). Recently, mGlus have been identified in peripheral tissues, and aberrant expression or inhibition of the receptors functions in the development of certain cancers. However, the correlation of mGlu activity with hepatocellular carcinoma (HCC) remains unknown. In this...
NEDD8-activating enzyme (NAE) controls the specific degradation of proteins regulated by cullin-RING ubiquitin E3 ligase, and has been considered as an attractive molecular target for the development of anti-cancer drugs. We report herein the identification of the dipeptide-conjugated deoxyvasicinone derivative (1) as an inhibitor of NAE by virtual screening of over 90,000 compounds from the ZINC...
Extracellular cysteine (Cys)/cystine (CySS) redox potential (E h ) has been shown to regulate diverse biological processes, including enzyme catalysis, gene expression, and signaling pathways for cell proliferation and apoptosis, and is sensitive to aging, smoking, and other host factors. However, the effects of extracellular Cys/CySS redox on the nervous system remain unknown. In this study,...
Human DNA sequences consisting of tandem guanine (G) nucleotides can fold into a four-stranded structure named G-quadruplex via Hoogsteen hydrogen bonding. As the sequences forming G-quadruplex exist in essential regions of eukaryotic chromosomes and are involved in many important biological processes, the study of their biological functions has currently become a hotspot. Compounds selectively binding...
A fluorescent probe, IAEDANS, was introduced into the active site of adenylate kinase (AK) by specifically modifying Cys-25. During modification, enzyme activity was greatly diminished. This probe allowed observation of conformational changes at the active site during denaturation that could not be detected directly in previous studies. The binding ability of modified AK with its monoclonal antibody...
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