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Digestion of grass lipids and pigments in the sheep rumen
TLDR
It was concluded that rumen micro-organisms are mainly responsible for this degradation of grass lipids and pigments in the rumen of the sheep, although grass itself also contains enzymes which can degrade galactolipids.
On the role of higher plant and microbial lipases in the ruminal hydrolysis of grass lipids
TLDR
It is concluded that in the sheep the lipases of rumen micro-organisms play a major part in the ruminal degradation of ingested complex lipids of pasture.
Some properties of purified phospholipase D and especially the effect of amphipathic substances.
TLDR
The purified phospholipase D of cabbage was purified by heat treatment, acetone precipitation and electrophoresis on a density gradient of aqueous glycerol and it was suggested that this adsorption is an essential prerequisite for ready enzyme hydrolysis.
The hydrolysis of phosphatidylinositol by lysosomal enzymes of rat liver and brain.
TLDR
Evidence is presented that an EDTA-insensitive phospholipase C degrading phosphatidylinositol is present in rat brain.
The calcium-dependent phosphatidylinositol-phosphodiesterase of rat brain. Mechanisms of suppression and stimulation.
TLDR
The activation by acidic phospholipids and unsaturated amphiphiles appear to be independent as they are additive and, under certain conditions, synergistic; and both types of stimulator can reverse the inhibition caused by histone or phosphatidylcholine.
The inhibition of diacylglycerol-stimulated intracellular phospholipases by phospholipids with a phosphocholine-containing polar group. A possible physiological role for sphingomyelin.
TLDR
The results are discussed in relation to possible molecular reorganizations brought about in the hydrated phospholipid substrate complex, and in particular the possible stabilizing role of sphingomyelin in the maintenance of membrane structure, and hence in the modulation ofospholipase activity.
The inhibition and activation of Ca2+-dependent phosphatidylinositol phosphodiesterase by phospholipids and blood plasma.
TLDR
It is suggested thatosphatidic acid formed by the action of diacylglycerol kinase could amplify any increased hydrolysis of phosphatidylinositol which results from stimulation of the cell by an agonist.
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