All the other derivatives showed moderate to weak activity. Among the series, replacement of the –OMe group on phenyl ring attached to pyrazoline moiety at C-5 carbon atom either by –CH3 (7e and 7l) or halogen like Cl substituent group (7g and 7n) resulted in a dramatic drop of inhibitory activity and in compound 7m, it was observed to be enhancing the lipoxygenase activity rather than inhibition. In conclusion, a new class of indole based scaffolds having pyrazole ring have been synthesized and evaluated for their in vitro
antioxidant activity and anti-inflammatory activity. Among the synthesized analogues, 7d have shown significant antioxidant potential and compound 7c yielded better anti-inflammatory activity and therefore become lead candidates for synthetic and biological evaluation. All authors Proteasome purification have none to declare. The authors are thankful to NMR Research center, Indian Institute of Science, Bangalore for providing spectral data. Also the authors are thankful to Mr. Rakshit, Microbiology department, Manasagangotri, Mysore for carrying out anti-inflammatory activity. “
“Breast Cancer Resistance Protein (BCRP) is a membrane-bound protein
and belongs to the ATP-binding cassette family. BCRP is also called as ABCG2 which is present in many normal tissues and solid tumors VRT752271 datasheet including blood–brain barrier, placenta, liver, small intestine, for adrenal gland, testis and stem cells.1 BCRP deliberate drug resistance to many anti-cancer agents such as irinotecan, topotecan, tyrosine kinase inhibitors and mitoxantrone. BCRP is ATP-binding cassette (ABC) efflux transporter
that deliberates multidrug resistance in breast cancer and also plays an important role in the absorption, distribution and elimination of drugs.1 and 2 It is of elementary significance to investigate the function and binding site of BCRP protein. BCRP contains 655-amino acid with a single nucleotide binding domain (NBD) and six transmembrane domains (TMD). BCRP is a half-transporter, and thus requires at least two NBDs to function as a drug efflux pump. Hence, functional BCRP exists as either homodimers or homo-multimers.3 and 4 3D structure of BCRP has not been solved in Protein Data Bank yet. Hence the aim of the current study is to construct the 3D structure of BCRP to investigate the interaction of ligands of BCRP in wild and mutated models in order to define possible binding sites. Protein sequence has been retrieved from UniProtKB/Swiss-Prot.5 Present study used Homology modeling methods to construct the 3D structure of Human BCRP. Human BCRP homology model was built using MODELLER (Fig. 2 and Fig. 3), a Computational algorithm for Protein structural assessment.