PI(4,5)P2: signaling the plasma membrane

RC Wills, GRV Hammond - Biochemical Journal, 2022 - portlandpress.com
In the almost 70 years since the first hints of its existence, the phosphoinositide,
phosphatidyl-D-myo-inositol 4, 5-bisphosphate has been found to be central in the …

Beyond fluidity: the role of lipid unsaturation in membrane function

T Harayama, B Antonny - Cold Spring Harbor …, 2023 - cshperspectives.cshlp.org
The number of double bonds in the acyl chains of membrane lipids varies tremendously at
all scales of life, from the organism level to the subcellular level, where differences in lipid …

[HTML][HTML] Regulations of myo-inositol homeostasis: Mechanisms, implications, and perspectives

XB Su, ALA Ko, A Saiardi - Advances in Biological Regulation, 2023 - Elsevier
Phosphorylation is the most common module of cellular signalling pathways. The dynamic
nature of phosphorylation, which is conferred by the balancing acts of kinases and …

Metabolic bias: Lipid structures as determinants of their metabolic fates

T Harayama - Biochimie, 2023 - Elsevier
Cellular lipids have an enormous diversity in their chemical structures, which affect the
physicochemical properties of lipids and membranes, as well as their regulatory roles on …

The dynamic regulatory network of phosphatidic acid metabolism: a spotlight on substrate cycling between phosphatidic acid and diacylglycerol

R Tei - Biochemical Society Transactions, 2024 - portlandpress.com
Mammalian cells utilize over 1000 different lipid species to maintain cell and organelle
membrane properties, control cell signaling and processes, and store energy. Lipid …

Non-vesicular phosphatidylinositol transfer plays critical roles in defining organelle lipid composition

YJ Kim, JG Pemberton, A Eisenreichova… - The EMBO …, 2024 - embopress.org
Phosphatidylinositol (PI) is the precursor lipid for the minor phosphoinositides (PPIns), which
are critical for multiple functions in all eukaryotic cells. It is poorly understood how …

[PDF][PDF] CDS2 expression regulates de novo phosphatidic acid synthesis

DM Collins, V Janardan, D Barneda… - Biochemical …, 2024 - portlandpress.com
CDS enzymes (CDS1 and 2 in mammals) convert phosphatidic acid (PA) to CDP-DG, an
essential intermediate in the de novo synthesis of PI. Genetic deletion of CDS2 in primary …

Acyl chain selection couples the consumption and synthesis of phosphoinositides

D Barneda, V Janardan, I Niewczas, DM Collins… - The EMBO …, 2022 - embopress.org
Phosphoinositides (PIPn) in mammalian tissues are enriched in the stearoyl/arachidonoyl
acyl chain species (“C38: 4”), but its functional significance is unclear. We have used …

Should I stay or should I go: the functional importance and regulation of lipid diffusion in biological membranes

C Béziat, Y Jaillais - Journal of Experimental Botany, 2023 - academic.oup.com
Biological membranes are highly dynamic, in particular due to the constant exchange of
vesicles between the different compartments of the cell. In addition, the dynamic nature of …

Diacylglycerol kinase-ε is S-palmitoylated on cysteine in the cytoplasmic end of its N-terminal transmembrane fragment

G Traczyk, A Hromada-Judycka, A Świątkowska… - Journal of Lipid …, 2024 - ASBMB
Diacylglycerol kinase-ε (DGKε) catalyzes phosphorylation of diacylglycerol to phosphatidic
acid with a unique specificity toward 1-stearoyl-2-arachidonoyl-sn-glycerol, which is a …