Results 71 to 80 of about 63,776 (234)
Unique features of Plasmids among different Citrobacter species [PDF]
The _Citrobacter_ plasmids are supposed to represent the host genetic association within the living bacterial cell. The plasmids impart various beneficial characteristics to the host, helping it to retain suitable characteristics for adaptation as well ...
Swapnil G. Sanmukh, Waman N. Paunikar
core +1 more source
We describe a new method to produce hydrolytically stable cardiotonic steroids using a CPA‐controlled diastereoselective reductive amination of cardenolide aglycones. The oleandrin and digitoxigenin analogs exhibited promising activity against various cancer cell lines in the NCI‐60 screen.
Natasha Perry+3 more
wiley +1 more source
Signal Transduction and Pathogenic Modifications at the Melanocortin-4 Receptor: A Structural Perspective [PDF]
The melanocortin-4 receptor (MC4R) can be endogenously activated by binding of melanocyte-stimulating hormones (MSH), which mediates anorexigenic effects. In contrast, the agouti-related peptide (AgRP) acts as an endogenous inverse agonist and suppresses
Biebermann, Heike+10 more
core +1 more source
Phylogenetic analysis reveals an ancient gene duplication as the origin of the MdtABC efflux pump. [PDF]
The efflux pumps from the Resistance-Nodulation-Division family, RND, are main contributors to intrinsic antibiotic resistance in Gram-negative bacteria. Among this family, the MdtABC pump is unusual by having two inner membrane components.
Górecki, Kamil, McEvoy, Megan M
core +2 more sources
Quantum chemistry has been used to investigate the key factors that determine the (reverse) intersystem crossing processes in boron‐based organic light‐emitting diode emitters. The ortho‐linked through‐space charge‐transfer compounds exhibit smaller singlet–triplet splittings than their para‐linked through‐bond charge‐transfer regioisomers.
Jeremy M. Kaminski+2 more
wiley +1 more source
Covalently bound substrate at the regulatory site triggers allosteric enzyme activation [PDF]
The mechanism by which the enzyme pyruvate decarboxylase from yeast is activated allosterically has been elucidated. A total of seven three-dimensional structures of the enzyme, of enzyme variants or of enzyme complexes form two yeast species (three of ...
Georg Wille+5 more
core +1 more source
Cyclic AMP signalling in pancreatic islets [PDF]
Cyclic 3'5'AMP (cAMP) is an important physiological amplifier of glucose-induced insulin secretion by the pancreatic islet β-cell, where it is formed by the activity of adenylyl cyclases, which are stimulated by glucose, through elevation in ...
Furman, Brian+2 more
core +1 more source
Systematic approach to dilated cardiomyopathy diagnosis. Dilated cardiomyopathy is a clinical diagnosis characterized by the presence of left ventricular dilatation and systolic disfunction unexplained by abnormal loading conditions or coronary artery disease.
Kristian Galanti+14 more
wiley +1 more source
Schizophrenia is a TH2 dominant autoimmune disease possibly against acetylcholine receptors of CNS [PDF]
Schizophrenia is a very common psychiatric disorder. However, its etiology and pathogenesis is still unknown. Current theory saying that neurotransmitter imbalance such as serotonin or dopamine only provides limited effectiveness in schizophrenia ...
Wanchung(Wan-Jiung) Hu
core +1 more source
Buchnera aphidicola, the primary endosymbiont of aphids, has undergone important genomic and biochemical changes as an adaptation to intracellular life.
Gil, Rosario+4 more
core +1 more source