Results 51 to 60 of about 30,835 (333)

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

FEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho, Shin Morioka, Junko Sasaki, Takehiko Sasaki   +3 more
wiley   +1 more source

General amyloid inhibitors? A critical examination of the inhibition of IAPP amyloid formation by inositol stereoisomers. [PDF]

, 2014
Islet amyloid polypeptide (IAPP or amylin) forms amyloid deposits in the islets of Langerhans; a process that is believed to contribute to the progression of type 2 diabetes and to the failure of islet transplants.
Raleigh, David, Wang, Hui
core   +5 more sources

Elucidation of Inverse Agonist Activity of Bilastine

Pharmaceutics, 2020
H1-antihistamines antagonize histamine and prevent it from binding to the histamine H1 receptor (H1R). Some of them also act as inverse agonists, which are more potent than pure antagonists because they suppress the constitutive H1R activity.
Hiroyuki Mizuguchi, Tomoharu Wakugawa, Hisato Sadakata, Seiichiro Kamimura, Mai Takemoto, Tomomi Nakagawa, Masami Yabumoto, Yoshiaki Kitamura, Noriaki Takeda, Hiroyuki Fukui   +9 more
doaj   +1 more source

Phytic acid degradation by phytase – as viewed by 31P NMR and multivariate curve resolution [PDF]

, 2007
The 31P NMR method is a most direct and useful method to describe the degradation of phytic acid to lower inositol phosphates by the action of the enzyme phytase.
Engelsen, Søren Balling, Nielsen, Merete Møller, Viereck, Nanna   +2 more
core  

Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?

FEBS Letters, EarlyView.
This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes, Guilherme M. Azevedo, Amanda P. Barcellos, Diana Bahia   +3 more
wiley   +1 more source

Analysis of inositol phosphate metabolism by capillary electrophoresis electrospray ionization mass spectrometry

Nature Communications, 2020
Myo-Inositol phosphates (InsPs) and pyrophosphates (PP-InsPs) are important second messengers but their analysis remains challenging. Here, the authors develop a capillary electrophoresis-mass spectrometry method for the identification and quantitation ...
Danye Qiu, Miranda S. Wilson, Verena B. Eisenbeis, Robert K. Harmel, Esther Riemer, Thomas M. Haas, Christopher Wittwer, Nikolaus Jork, Chunfang Gu, Stephen B. Shears, Gabriel Schaaf, Bernd Kammerer, Dorothea Fiedler, Adolfo Saiardi, Henning J. Jessen   +14 more
doaj   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

FEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe, Tanmay Kumar Mohanty, Rashna Bhandari, Dorothea Fiedler   +3 more
wiley   +1 more source

M–O–C Catalysts: Copper Single Atoms Supported on Oxocarbon Covalent Networks as Electrocatalysts for Glycerol Oxidation to Formic Acid

Angewandte Chemie, EarlyView.
We introduce a new class of single‐atom electrocatalysts based on oxygen‐coordinated metal sites embedded in oxocarbon networks (M–O–C), alternative to traditional M–N–C materials. A Cu–O–C catalyst derived from oxocarbon precursors exhibits highly dispersed Cu single atoms and delivers faster glycerol oxidation kinetics and higher formate selectivity ...
Xinyue Zheng, Teodor Jianu, Yizhou Dai, Anastaios Orestis Grammennos, Nadezda V. Tarakina, Fernando Igoa Saldaña, Jiatu Liu, Zhihong Tian, Markus Antonietti, Mateusz Odziomek   +9 more
wiley   +2 more sources

Inhibition of Subsets of G Protein-coupled Receptors by Empty Mutants of G Protein α Subunits in Go, G11, and G16 [PDF]

, 2000
We previously reported that the xanthine nucleotide binding Goα mutant, GoαX, inhibited the activation of Gi-coupled receptors. We constructed similar mutations in G11α and G16α and characterized their nucleotide binding and receptor interaction.
Gu, Lingjie, Simon, Melvin I., Yu, Bo
core   +1 more source

Therapeutic strategies for MMAE‐resistant bladder cancer through DPP4 inhibition

Molecular Oncology, EarlyView.
We established monomethyl auristatin E (MMAE)‐resistant bladder cancer (BC) cell lines by exposure to progressively increasing concentrations of MMAE in vitro. RNA sequencing showed DPP4 expression was increased in MMAE‐resistant BC cells. Both si‐DPP4 and the DPP4 inhibitor sitagliptin suppressed the viability of MMAE‐resistant BC cells.
Gang Li, Shuichi Tatarano, Hirofumi Yoshino, Saeki Saito, Mitsuhiko Tominaga, Junya Arima, Ikumi Fukuda, Takashi Sakaguchi, Ryosuke Matsushita, Yasutoshi Yamada, Hideki Enokida   +10 more
wiley   +1 more source