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Articles 31 - 33 of 33
Full-Text Articles in Medicine and Health Sciences
Crystal Structure Of The Cystic Fibrosis Transmembrane Conductance Regulator Inhibitory Factor Cif Reveals Novel Active-Site Features Of An Epoxide Hydrolase Virulence Factor, Christopher D. Bahl, Christophe Morisseau, Jennifer M. Bomberger, Bruce A. Stanton, Bruce D. Hammock, George A. O'Toole, Dean R. Madden
Crystal Structure Of The Cystic Fibrosis Transmembrane Conductance Regulator Inhibitory Factor Cif Reveals Novel Active-Site Features Of An Epoxide Hydrolase Virulence Factor, Christopher D. Bahl, Christophe Morisseau, Jennifer M. Bomberger, Bruce A. Stanton, Bruce D. Hammock, George A. O'Toole, Dean R. Madden
Dartmouth Scholarship
Cystic fibrosis transmembrane conductance regulator (CFTR) inhibitory factor (Cif) is a virulence factor secreted by Pseudomonas aeruginosa that reduces the quantity of CFTR in the apical membrane of human airway epithelial cells. Initial sequence analysis suggested that Cif is an epoxide hydrolase (EH), but its sequence violates two strictly conserved EH motifs and also is compatible with other alpha/beta hydrolase family members with diverse substrate specificities. To investigate the mechanistic basis of Cif activity, we have determined its structure at 1.8-A resolution by X-ray crystallography. The catalytic triad consists of residues Asp129, His297, and Glu153, which are conserved across the …
Fluprostenol-Induced Mapk Signaling Is Independent Of Aging In Fischer 344/Nniahsd X Brown Norway/Binia Rat Aorta, Kevin M. Rice, Ernest M. Walker, Sunil K. Kakarla, Satyanarayana Paturi, Miaozong Wu, Sumit Narula, Eric R. Blough
Fluprostenol-Induced Mapk Signaling Is Independent Of Aging In Fischer 344/Nniahsd X Brown Norway/Binia Rat Aorta, Kevin M. Rice, Ernest M. Walker, Sunil K. Kakarla, Satyanarayana Paturi, Miaozong Wu, Sumit Narula, Eric R. Blough
MIIR Faculty Research
The factors that regulate vascular mechanotransduction and how this process may be altered with aging are poorly understood and have not been widely studied. Recent data suggest that increased tissue loading can result in the release of prostaglandin F2 alpha (PGF2α) and other reports indicate that aging diminishes the ability of the aged aorta to activate mitogen activated protein kinase (MAPK) signaling in response to increased loading. Using ex vivo incubations, here we investigate whether aging affects the ability of the aorta to induce phosphorylation of extracellular signal-regulated kinase 1/2 (ERK½-MAPK), p38-MAPK, and Jun N-terminal kinase (JNK-MAPK) activation following stimulation …
Study Of Polytopic Membrane Protein Topological Organization As A Function Of Membrane Lipid Composition, Mikhail Bogdanov, Philip N Heacock, William Dowhan
Study Of Polytopic Membrane Protein Topological Organization As A Function Of Membrane Lipid Composition, Mikhail Bogdanov, Philip N Heacock, William Dowhan
Journal Articles
A protocol is described using lipid mutants and thiol-specific chemical reagents to study lipid-dependent and host-specific membrane protein topogenesis by the substituted-cysteine accessibility method as applied to transmembrane domains (SCAM). SCAM is adapted to follow changes in membrane protein topology as a function of changes in membrane lipid composition. The strategy described can be adapted to any membrane system.