73 to 29.08 with the maximum value recorded from n-hexane (21.6%). It was followed by butanol (20.3%), methanol (16.3%), acetone (12.08%), water (11.33%), petroleum ether (9.46%) and chloroform (9%). The plant possessed good antioxidant ARN-509 research buy property and at the dose of 100 mu g, DPPH value of flower was 412.82 +/- 0.003 that is near
to the satndard (440.54 +/- 0.001). The phenolic compounds were also detected in plant that was about half of the quantity of standard (gallic acid). This study will serve as benchmark for further detailed analysis of plant extract prior to drug development and its utilization in future. (c) 2013 Friends Science Publishers”
“The rotational spectra of trifluoroanisole (trifluoromethoxybenzene, C6H5OCF3) and of its C-13 and O-18 isotopologues in natural abundance
have been measured in a supersonic expansion with pulsed-jet Fourier transform microwave spectroscopy. The spectrum is consistent with a perpendicular conformation of the CF3 group with respect to the phenyl ring. (C) 2014 Elsevier Inc. All rights reserved.”
“Chloroplast precursor proteins encoded in the nucleus depend on their targeting sequences for delivery to chloroplasts. There exist different routes to the chloroplast outer envelope, but a common theme is the involvement of molecular chaperones. Hsp90 (heat-shock protein 90) delivers precursors via its receptor Toc64, which transfers precursors to the core translocase in the SC79 mw outer envelope. In the present paper, we identify an uncharacterized protein in Arabidopsis thaliana OEP61 which shares common features with Toc64, and potentially learn more provides
an alternative route to the chloroplasts. Sequence analysis indicates that OEP61 possesses a clamp-type TPR (tetratricopeptide repeat) domain capable of binding molecular chaperones, and a C-terminal TMD (transmembrane domain). Phylogenetic comparisons show sequence similarities between the TPR domain of OEP61 and those of the Toc64 family. Expression of mRNA and protein was detected in all plant tissues, and localization at the chloroplast outer envelope was demonstrated by a combination of microscopy and in vitro import assays. Binding assays show that OEP61 interacts specifically with Hsp70 (heat-shock protein 70) via its TPR clamp domain. Furthermore, OEP61 selectively recognizes chloroplast precursors via their targeting sequences, and a soluble form of OEP61 inhibits chloroplast targeting. We therefore propose that OEP61 is a novel chaperone receptor at the chloroplast outer envelope, mediating Hsp70-dependent protein targeting to chloroplasts.”
“Dexamethasone (DX) induces apoptosis resistance in most solid malignant tumors during co-treatment with chemotherapy agents, such as camptothecin (CAM). In this study, we investigated the mechanism by which DX reduces chemotherapy efficiency in C6-glioma. DX reduced CAM-increased DNA fragmentation and caspase-3 activation.