Results 221 to 230 of about 42,623 (284)

Phycocyanobilin biosynthesis in Galdieria sulphuraria requires isomerization of phycoerythrobilin synthesized by bilin reductases

The FEBS Journal, EarlyView.
The biosynthesis of bilins, tetrapyrroles essential for light harvesting and sensing, is performed by specific enzymes (FDBRs). In Galdieria sulphuraria, both phycobiliprotein types bind phycocyanobilin, despite lacking the canonical synthesizing gene PCYA. Instead, PEBA and PEBB are encoded, producing phycoerythrobilin, proposed to be later isomerized
Federica Frascogna, Nathan C. Rockwell, Jana Hartmann, Julie M. Mudler, Nicole Frankenberg‐Dinkel   +4 more
wiley   +1 more source

Human Aortic Stenotic Valve-Derived Extracellular Vesicles Induce Endothelial Dysfunction and Thrombogenicity Through AT1R/NADPH Oxidases/SGLT2 Pro-Oxidant Pathway. [PDF]

JACC Basic Transl Sci
Hmadeh S, Trimaille A, Matsushita K, Marchandot B, Carmona A, Zobairi F, Sato C, Kindo M, Hoang TM, Toti F, Zibara K, Hamade E, Schini-Kerth V, Kauffenstein G, Morel O.   +14 more
europepmc   +1 more source

The competitive interplay of 12‐oxophytodienoic acid (OPDA), protein thiols, and glutathione

The FEBS Journal, EarlyView.
12‐Oxophytodienoic acid (OPDA) is a phytohormone involved in plant growth and stress defense. Due to its cyclopentenone moiety, OPDA can form Michael adducts with thiol‐containing compounds such as glutathione and cysteine residues of proteins, resulting in alterations of the cellular redox regulatory network.
Madita Knieper, Ruben Schwarz, Lara Vogelsang, Jens Sproß, Armağan Kaya, Maike Bittmann, Harald Gröger, Andrea Viehhauser, Karl‐Josef Dietz   +8 more
wiley   +1 more source

Interactions between small leucine‐rich proteoglycans and proteases: implications for tissue homeostasis and pathology

The FEBS Journal, EarlyView.
Small leucine‐rich proteoglycans (SLRPs) are key modulators of extracellular matrix structure and signaling. Their proteolytic processing by MMPs (Matrix Metalloproteinases), ADAMTS (disintegrin and metalloprotease with thrombospondin motifs), and serine proteases generates bioactive fragments that regulate collagen remodeling, inflammation, and ...
Maria Konstantaraki, Lydia‐Nefeli Thrapsanioti, Aikaterini Berdiaki, Ioanna Spyridaki, Dragana Nikitovic   +4 more
wiley   +1 more source

Complement–Eosinophil Crosstalk Links Complement Activation to Fibrin Deposition in Eosinophilic Chronic Rhinosinusitis

Allergy, EarlyView.
Ryo Hasegawa, Shigeharu Ueki, Misaki Arima, Shohei Nishiyama, Keinosuke Hizuka, Kohei Tatsumi, Ayako Sawai, Anna Shimizu, Yuki Sonoda, Eiichi Kato, Masanori Kidoguchi, Masafumi Sakashita, Yohei Sato, Atsushi Kato, Bruce K. Tan, Robert C. Kern, Robert P. Schleimer, Shigeharu Fujieda, Yoshimasa Imoto   +18 more
wiley   +1 more source

An update on the landscape of collagen bioactive fragments

The FEBS Journal, EarlyView.
The remodeling of the extracellular matrix releases collagen bioactive fragments, which exert molecular functions and regulate numerous biological processes via several signaling pathways. Here, we summarize the latest findings describing the roles of major bioactive fragments from collagens I, IV, VI, and XVIII in various physiological and ...
Sylvie Ricard‐Blum, Julie Fradette
wiley   +1 more source

A new branch of mammalian vitamin B6 metabolism: AKR1C‐mediated conversion of pyridoxal to pyridoxine and 4‐pyridoxolactone

The FEBS Journal, EarlyView.
Pyridoxal 5′‐phosphate (PLP) homeostasis relies on salvage enzymes, yet key metabolic branches remain undefined. We identify AKR1C isozymes as previously undescribed contributors that convert pyridoxal into pyridoxine or 4‐pyridoxolactone through reductase and dehydrogenase activities.
Nayu Kito, Yasuyuki Kitaura, Kyoka Iino, Kazuya Toriumi, Hyunah Noh, Naoya Ogawa, Makoto Arai, Hisashi Hemmi, Tomokazu Ito   +8 more
wiley   +1 more source

Tyrosine residues at the substrate binding site in human NQO1 homodimer: Protein conformational dynamics and optimization of substrate binding geometry

The FEBS Journal, EarlyView.
Human NAD(P)H:quinone oxidoreductase 1 is a homodimeric flavoenzyme crucial for redox metabolism and linked to significant health issues. Point mutations at Tyr126 and Tyr128 demonstrate their essential roles in optimizing substrate binding geometry for catalysis, as well as in half‐site reactivity and conformational dynamics during the enzyme's ...
Maribel Rivero, Juan Luis Pacheco‐Garcia, Pavla Vankova, Dmitry Loginov, Isabel Quereda‐Moraleda, Jose Manuel Martin‐Garcia, Petr Man, Angel Luis Pey, Milagros Medina   +8 more
wiley   +1 more source

1H NMR metabolomics and lipidomics analysis of neutrophils reveals biomarkers of ageing, inflammageing and frailty

The FEBS Journal, EarlyView.
Using 1H NMR metabolomics, we measured polar and lipid metabolites from human blood neutrophils from people with frailty (n = 31, mean age 84Y), people with rheumatoid arthritis (n = 16, mean age 55Y), robust older (n = 24, mean age 66Y) and healthy younger people (n = 21, mean age 22Y).
Genna Ali Abdullah, Grace Filbertine, Lucy Gill, Asangaedem Akpan, Marie M. Phelan, Helen Louise Wright   +5 more
wiley   +1 more source

Mitochondrial transfer in acute myeloid leukaemia and multiple myeloma: Mechanisms, consequences and potential therapeutic opportunities

The FEBS Journal, EarlyView.
Mitochondria can be transferred from bone marrow cells to cancer cells in acute myeloid leukaemia and multiple myeloma, boosting tumour energy production, growth, and drug resistance. This review highlights key transfer mechanisms and shows how targeting mitochondrial movement and dynamics may offer new therapeutic strategies to limit cancer ...
Ebubechukwu Nwarunma, Mark T. S. Williams   +1 more
wiley   +1 more source