Relation of lipid structure of sarcotubular vesicles to Ca++ transport activity
The role of lipids of the sarcotubular membranes in their Ca++ uptake and Mg-ATPase activities was investigated. Treatment of the membranes with phospholipase C inhibits both processes. Treatment with phospholipase A and phospholipase D, which results in
B.P. Yu, F.D. DeMartinis, E.J. Masoro
doaj +1 more source
Generation of Choline for Acetylcholine Synthesis by Phospholipase D Isoforms [PDF]
DEDICATION: This article is dedicated to the memory of Sue Kim Hanson, a graduate student in the department of Pathology and Laboratory Medicine at Boston University School of Medicine, who perished in the terrorist attacks of September 11, 2001 ...
Blusztajn, Jan Krzysztof +2 more
core +3 more sources
Substrate-Specific Inhibition Constants for Phospholipase A2 Acting on Unique Phospholipid Substrates in Mixed Micelles and Membranes Using Lipidomics. [PDF]
Assaying lipolytic enzymes is extremely challenging because they act on water-insoluble lipid substrates, which are normally components of micelles, vesicles, and cellular membranes.
Armando, Aaron +2 more
core +6 more sources
Updating Phospholipase A2 Biology [PDF]
The phospholipase A2 (PLA2) superfamily contains more than 50 enzymes in mammals that are subdivided into several distinct families on a structural and biochemical basis. In principle, PLA2 has the capacity to hydrolyze the sn-2 position of glycerophospholipids to release fatty acids and lysophospholipids, yet several enzymes in this superfamily ...
Makoto Murakami +2 more
openaire +3 more sources
Pancreatic phospholipase A2 activity in acute pancreatitis: A prognostic marker for early identification of patients at risk [PDF]
Remarkably elevated levels of phospholipase A(2) (PLA(2)) are measurable in human blood samples in cases of acute pancreatitis. The source of the enzyme was first thought to be exclusively the pancreas, but now it is generally accepted that two ...
Aufenanger, Johannes +5 more
core +1 more source
Cytosolic Phospholipase A2α and Eicosanoids Regulate Expression of Genes in Macrophages Involved in Host Defense and Inflammation [PDF]
Acknowledgments: We thank Dr. Robert Barkley and Charis Uhlson for mass spectrometry analysis. Funding: This work was supported by grants from the National Institutes of Health HL34303 (to C.C.L., R.C.M. and D.L.B), DK54741 (to J.V.B.), GM5322 (to D.L.W.)
Bonventre, Joseph V. +9 more
core +7 more sources
Lipids at the crossroad of α-synuclein function and dysfunction: Biological and pathological implications [PDF]
Since its discovery, the study of the biological role ofα-synuclein and its pathologicalimplications has been the subject of increasing interest. The propensity to adoptdifferent conformational states governing its aggregation and fibrillation makes ...
Alza, Natalia Paola +4 more
core +1 more source
Intestinal Phospholipase, a Novel Enzyme [PDF]
We evaluated phospholipase activity in the intestine of rats and other species. Phospholipase activity was assayed by a surface barostat technique or an egg yolk titration system. Mucosal activity was found only by the surface barostat technique with phosphatidylglycerol as substrate; it was not found with phosphatidylcholine as substrate in assays by ...
C M, Mansbach, G, Pieroni, R, Verger
openaire +2 more sources
Phospholipase A from Bee Venom [PDF]
The phospholipase A from the venom of the common European honey bee (Apis mellifica) has been completely purified. The final product (13 g from 700 g of crude venom) readily crystallizes and is homogeneous with respect to starch gel electrophoresis at pH 8.0, isoelectric focussing in polyacrylamide gel in the pH range 3–10, and sedimentation and ...
R A, Shipolini +5 more
openaire +2 more sources
2-Oxoesters: A Novel Class of Potent and Selective Inhibitors of Cytosolic Group IVA Phospholipase A2. [PDF]
Cytosolic phospholipase A2 (GIVA cPLA2) is the only PLA2 that exhibits a marked preference for hydrolysis of arachidonic acid containing phospholipid substrates releasing free arachidonic acid and lysophospholipids and giving rise to the generation of ...
Barbayianni, Efrosini +10 more
core +1 more source

