Background: Probiotics restore microbial balance and prevent gut-inflammation. Therefore, finding out novel probiotic strains is a demand. As gut-microbe, benefits of are established.
View Article and Find Full Text PDFBiochem Biophys Res Commun
December 2022
Amalgamation of target-based approach along with chemo and/or radiotherapy could be an effective strategy to combat pancreatic cancer (PC). ATAD2 (ATPase family AAA domain containing 2) is a potential oncoprotein and a poor prognostic factor in PC. ATAD2 inhibition sensitizes pancreatic cancer cells (PCCs) to gemcitabine (GEM).
View Article and Find Full Text PDFFront Microbiol
May 2022
Background: Dysbiosis/imbalance in the gut microbial composition triggers chronic inflammation and promotes colorectal cancer (CRC). Modulation of the gut microbiome by the administration of probiotics is a promising strategy to reduce carcinogenic inflammation. However, the mechanism remains unclear.
View Article and Find Full Text PDFAims: Pancreatic cancer is a fatal disease across the world with 5 years survival rate less than 10%. ATAD2, a valid cancer drug-target, is overexpressed in pancreatic malignancy with high oncogenic potential. However, the mechanism of the upregulated expression of ATAD2 in pancreatic cancer is unknown.
View Article and Find Full Text PDFATAD2 is a promising oncoprotein with tumor-promoting functions in many cancers. It is a valid cancer drug-target and a potential cancer-biomarker for multiple malignancies. As a cancer/testis antigen (CTA), ATAD2 could also be a probable candidate for immunotherapy.
View Article and Find Full Text PDFWith the alarming rise of infected cases and deaths, COVID-19 is a pandemic, affecting 220 countries worldwide. Until now, no specific treatment is available against SARS-CoV-2. The causal virus SARS-CoV-2 primarily infects lung cells, leading to respiratory illness ranging in severity from the common cold to deadly pneumonia.
View Article and Find Full Text PDFATAD2 has recently been shown to promote stomach cancer. However, nothing is known about the functional network of ATAD2 in stomach carcinogenesis. This study illustrates the oncogenic potential of ATAD2 and the participation of its ATPase and bromodomain in stomach malignancy.
View Article and Find Full Text PDFStomach cancer is a difficult-to-treat disease. Lack of detection markers and limited understanding of the disease mechanisms contribute to the aggressive nature of stomach cancer cells (SCCs). Recently, an ATPase, ATAD2 has been found to be highly expressed in stomach cancer contributing to increased malignancy.
View Article and Find Full Text PDFThe dynamics of the nucleotide binding to a single, noninteracting nucleotide-binding site of the hexameric helicase RepA protein of plasmid RSF1010 has been examined, using the fluorescence stopped-flow method. The experiments have been performed with fluorescent analogues of ATP and ADP, TNP-ATP and TNP-ADP, respectively. In the presence of Mg(2+), the association of the cofactors proceeds as a sequential three-step process [Formula: see text] The sequential nature of the mechanism indicates the lack of significant conformational equilibria of the helicase prior to nucleotide binding.
View Article and Find Full Text PDFInteractions of nucleotide cofactors with both protein components of the Escherichia coli DnaB helicase complex with the replication factor, the DnaC protein, have been examined using MANT-nucleotide analogues. At saturation, in all examined stationary complexes, including the binary, DnaB-DnaC, and tertiary, DnaB-DnaC-ssDNA, complexes, the helicase binds six cofactor molecules. Thus, protein-protein and protein-DNA interactions do not affect the maximum stoichiometry of the helicase-nucleotide interactions.
View Article and Find Full Text PDFThe kinetic mechanism of NTP binding and hydrolysis by the Escherichia coli replicative helicase, the DnaB protein, in the absence and presence of the single-stranded DNA (ssDNA), has been quantitatively examined using the rapid quench-flow technique, under single-turnover conditions. In the case of both the free helicase and the enzyme-ssDNA complexes, the mechanism is independent of the type of base of the cofactor or the DNA; the bimolecular association is followed by the reversible chemical hydrolysis and subsequent conformational transition of the enzyme-product complex. The NTP hydrolysis step is significantly faster for the purine than for the pyrimidine cofactor, both in the absence and in the presence of the DNA.
View Article and Find Full Text PDFAllosteric interactions between the DNA- and NTP-binding sites of the Escherichia coli DnaB helicase engaged in the DnaB-DnaC complex and the mechanism of NTP hydrolysis by the complex have been examined using the fluorescence titration, analytical ultracentrifugation, and rapid quench-flow technique. Surprisingly, the ssDNA affinity of the DnaB-DnaC complex is independent of the structure of the phosphate group of the cofactor bound to the helicase. Thus, the DnaC protein eliminates the antagonistic allosteric effect of NTP and NDP on the ssDNA affinity of the enzyme.
View Article and Find Full Text PDFWe report here the accumulation of p-hydroxybenzoic acid in Agrobacterium rhizogenes-induced hairy root cultures of Daucus carota. This phenolic acid finds application in food, pharmaceutical and polymer industries. Metabolic profiling of phenolics by HPLC/ESI-MS from these hairy roots showed a considerable amount of p-hydroxybenzoic acid accumulation both in cytosol and in the cell wall.
View Article and Find Full Text PDFKinetics of the nucleotide binding to the strong (S) and weak (W) nucleotide-binding site of the Escherichia coli PriA helicase have been studied using the fluorescence stopped-flow technique. Experiments were performed with TNP-ADP and TNP-ATP analogues. Binding of the ADP analogue to the strong binding site is a four-step sequential reaction: (PriA)S + D (k1)<-->(k(-1)) + (S)1 (k2)<-->(k(-2)) (S)2 (k3)<-->(k(-3)) (S)3 (k4)<-->(k(-4)) (S)4.
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