Results 61 to 70 of about 6,613 (229)
Cell Proliferation, Volume 59, Issue 1, January 2026.Intracellular tryptophan levels modulate selective autophagy of FTH1 via the NCOA4 pathway. This autophagic process then inhibits 6‐HMT synthesis, which then results in an increase in reactive oxygen species and ferroptosis. ABSTRACT Hepatocellular carcinoma (HCC) remains a lethal malignancy with limited therapeutic options.
Xinxiang Cheng +10 more
wiley +1 more source
Microbiology Spectrum, 2023 Bacteria have to persist under low iron conditions in order to adapt to the nutritional immunity of a host. Since the knowledge of iron stimulon of Bacteroidetes is sparse, we examined oral (Porphyromonas gingivalis and Prevotella intermedia) and gut ...
Janina P. Lewis, Qin Gui
doaj +1 more source
The FEBS Journal, Volume 293, Issue 1, Page 196-219, January 2026.We revealed the crystal structure of eKatE from atypical E. coli. eKatE exhibits a hydrogen‐peroxide‐sensitive major channel, a stabilized dimeric interface, an unusual covalent bond between C392 and Y415, and other distinctive features. These structural features contribute to its enhanced catalase activity compared to KatE in typical E.
Eunhee Koh +7 more
wiley +1 more source
Biosynthese der Biphenomycine, einer Familie potenter Antibiotika
Angewandte Chemie, Volume 137, Issue 51, December 15, 2025.Der vollständige Biosyntheseweg der Biphenomycin‐Antibiotika wird aufgeklärt und offenbart eine einzigartige enzymatische Maschinerie mit einem bifunktionellen MNIO, einer regioselektiven Arginase, einem B12‐abhängigen rSAM für C,C‐Kupplung, Enzymen zur Hydroxylierung sowie einer zweifach spezifischen Metalloprotease.
Elisabeth Strunk +7 more
wiley +1 more source
Frontiers in Plant Science, 2021 Cytokinins are phytohormones regulating many biological processes that are vital to plants. CYTOKININ RESPONSE1 (CRE1), the main cytokinin receptor, has a modular architecture composed of a cytokinin-binding CHASE (Cyclases/Histidine kinases Associated ...
Linh H. Tran +6 more
doaj +1 more source
Redox potentials of algal and cyanobacterial flavodoxins [PDF]
Biochemical Journal, 1984 The redox potentials of flavodoxins from the cyanobacteria Synechococcus PCC 6301 (formerly Anacystis nidulans) and Nostoc strain MAC, and from the red alga Chondrus crispus, were determined by potentiometric titration. For the oxidized-semiquinone interconversion the potentials at pH 7.0 of the three flavodoxins were between −210 and −235 mV, and ...
G A, Sykes, L J, Rogers
openaire +2 more sources
Journal of Physical Chemistry Letters, 2018 Short-range electron transfer (ET) in proteins is an ultrafast process on the similar time scales as local protein-solvent fluctuation, and thus the two dynamics are coupled.
Mainak Kundu +4 more
semanticscholar +1 more source
Crystallographic characterization of flavodoxin from Anacystis nidulans [PDF]
Journal of Molecular Biology, 1975 Flavodoxin isolated from the blue-green alga, Anacystis nidulans, crystallizes from ammonium sulfate in space group P212121, with a = 57.08 A, b = 69.24 A and c = 45.55 A. The diffraction patterns extend to a resolution of at least 1.8 A. Reduction of the flavin mononucleotide in the crystalline protein, to either the semi-quinone or fully reduced ...
Smith, Ward W. +4 more
openaire +3 more sources
Frontiers in Immunology, 2022 IntroductionInflammatory bowel diseases (IBDs) are associated with both immune abnormalities and dysbiosis, characterized by a loss of Faecalibacterium prausnitzii (F. prausnitzii). However, the reason for F.
Kairuo Wang +23 more
doaj +1 more source
Artificial Enzymatic Electrochemistry
ChemElectroChem, Volume 12, Issue 21, November 3, 2025.Artificial enzymatic electrochemistry has emerged as an effective method to extend the catalytic abilities of enzymes. This review explores the bioelectrochemical methods used to understand and optimize the structure and function of artificial enzymes.
Nya E. Black +3 more
wiley +1 more source