A mass spectrometric method for in-depth profiling of phosphoinositide regioisomers and their disease-associated regulation

S Morioka, H Nakanishi, T Yamamoto… - Nature …, 2022 - nature.com
Phosphoinositides are a family of membrane lipids essential for many biological and
pathological processes. Due to the existence of multiple phosphoinositide regioisomers and …

Signaling roles of phosphoinositides in the retina

RVS Rajala - Journal of lipid research, 2021 - ASBMB
The field of phosphoinositide signaling has expanded significantly in recent years.
Phosphoinositides (also known as phosphatidylinositol phosphates or PIPs) are universal …

PI 5 P 4 K inhibitors: promising opportunities and challenges

K Takeuchi, L Nagase, S Kageyama… - The FEBS …, 2024 - Wiley Online Library
Phosphatidylinositol 5‐phosphate 4‐kinases (PI5P4K), also known as type II PIPKs or
PIPKIIs, convert the lipid second messenger PI5P to PI (4, 5) P2. The PI5P4K family consists …

PI3P-dependent regulation of cell size and autophagy by phosphatidylinositol 5-phosphate 4-kinase

A Ghosh, A Venugopal, D Shinde… - Life Science …, 2023 - life-science-alliance.org
Phosphatidylinositol 3-phosphate (PI3P) and phosphatidylinositol 5-phosphate (PI5P) are
low-abundance phosphoinositides crucial for key cellular events such as endosomal …

Crucial Players for Inter-Organelle Communication: PI5P4Ks and Their Lipid Product PI-4,5-P2 Come to the Surface

A Ravi, L Palamiuc, BM Emerling - Frontiers in Cell and …, 2022 - frontiersin.org
While organelles are individual compartments with specialized functions, it is becoming
clear that organellar communication is essential for maintaining cellular homeostasis. This …

Enrichment and MALDI-TOF MS Analysis of Phosphoinositides in Brain Tissue

HT Le, DPL Nguyen, GT Jung, E Kim… - Journal of the …, 2024 - ACS Publications
Triazolium cyclodextrin click cluster (+ CCC) is an ideal scaffold to specifically bind
phosphoinositides (PIPs) via multivalent electrostatic interaction. A new enrichment material …

Septins tune lipid kinase activity and PI (4, 5) P2 turnover during G-protein–coupled PLC signalling in vivo

A Kumari, A Ghosh, S Kolay… - Life Science Alliance, 2022 - life-science-alliance.org
Phosphatidylinositol 4, 5-bisphosphate [PI (4, 5) P2] hydrolysis by phospholipase C (PLC) is
a conserved mechanism of signalling. Given the low abundance of PI (4, 5) P2, its hydrolysis …

[HTML][HTML] Structural rationale to understand the effect of disease-associated mutations on Myotubularin

T Bhattacharyya, A Ghosh, S Verma, P Raghu… - Current Research in …, 2023 - Elsevier
Myotubularin or MTM1 is a lipid phosphatase that regulates vesicular trafficking in the cell.
The MTM1 gene is mutated in a severe form of muscular disease, X-linked myotubular …

Analysis of lipid signaling in Drosophila photoreceptors using mass spectrometry

A Panda, R Thakur, A Kumari, P Raghu - JoVE (Journal of Visualized …, 2022 - jove.com
The activation of phospholipase Cβ (PLCβ) is an essential step during sensory transduction
in Drosophila photoreceptors. PLCβ activity results in the hydrolysis of the membrane lipid …

The conserved biochemical activity and function of an early metazoan phosphatidylinositol 5 phosphate 4-kinase regulates growth and development.

H Krishnan, S Muzaffar, S Sharma, V Ramya, A Ghosh… - bioRxiv, 2024 - biorxiv.org
The ability to co-ordinate function between multiple cells is a critical requirement for multi-
cellularity. This co-ordination is mediated by hormones or growth factors, molecules …