Results 91 to 100 of about 26,184 (298)

Purification and characterization of the succinate dehydrogenase complex and CO-reactive b-type cytochromes from the facultative alkaliphile Bacillus firmus OF4

open access: yes, 1996
The presence of a bo-type terminal oxidase in Bacillus firmus OF4 had been suggested from the effects of CO on the spectra of reduced membrane cytochromes (Hicks, D.B., Plass, R.J. and Quirk, P.G. (1991) J. Bacteriol. 173, 5010–5016).
Krulwich, Terry A., Gilmour, Raymond
core   +1 more source

Schisandrin B elicits the Keap1-Nrf2 defense system via carbene reactive metabolite which is less harmful to mice liver

open access: yesDrug Design, Development and Therapy, 2018
Shan Feng,* Bingxun Qiu,* Li Zou, Ke Liu, Xiaoyu Xu, Huifeng Zhu College of Pharmaceutical Sciences and Chinese Medicine, Southwest University, Beibei, Chongqing 400715, China *These authors contributed equally to this work Background: Schisandrin B ...
Feng S, Qiu B, Zou L, Liu K, Xu X, Zhu H
doaj  

Proteins derived from green biomass: Alfalfa (Medicago sativa L.) and water lentil concentrate (Lemna minor L.) in the focus as stabilizers for emulsions

open access: yesFood Hydrocolloids for Health
Green crop biomass is a sustainable protein source, which can support solving global food challenges as well as improving the bioeconomy for novel food utilization. Two green biomasses -alfalfa and water lentil- known for a high protein content and their
Maren Müller   +11 more
doaj   +1 more source

Two Routes to Land: Genomic Underpinnings of Parallel Aerial Egg Deposition in Aquatic Old‐World Pila and New‐World Pomacea (Ampullariidae)

open access: yesAdvanced Science, EarlyView.
Comparative genomics of Gondwana‐diverged Pila and Pomacea reveals parallel evolution of aerial oviposition. Convergent chromosomal rearrangements reshape regulatory landscapes within topologically associating domains. Lineage‐specific gene family expansions and viral‐derived perivitelline proteins (PV1) underpin desiccation resistance.
Yufei Zhou   +10 more
wiley   +1 more source

Effects of bc1-site electron transfer inhibitors on the absorption spectra of mitochondrial cytochromes b

open access: yes, 1985
Changes are described that are brought about by antimycin, NoHOQnO, funiculosin, myxothiazol and mucidin in the α-, β- and γ-absorption bands of reduced and oxidized cytochromes b in the isolated complex bc1, form beef heart mitochondria.
Surkov, Sergey   +7 more
core   +1 more source

Epigenetic Silencing of RFX7 Defines a Transcriptional Axis Linking Lactate Metabolism to Immune Checkpoint Therapy in Glioblastoma

open access: yesAdvanced Science, EarlyView.
Glioblastoma (GBM) exhibits RFX7 silencing via promoter hypermethylation, which downregulates PIK3IP1 to activate PI3K/AKT signaling, increase lactate accumulation, and enhance histone H4K12 lactylation. This lactylation upregulates PD‐L1/CSF1 expression and drives the immunosuppressive microenvironment formation.
Liying Han   +20 more
wiley   +1 more source

Human induced pluripotent stem cells‐derived liver organoids grown on a Biomimesys® hyaluronic acid‐based hydroscaffold as a new model for studying human lipoprotein metabolism

open access: yesBioengineering & Translational Medicine
The liver plays a key role in the metabolism of lipoproteins, controlling both production and catabolism. To accelerate the development of new lipid‐lowering therapies in humans, it is essential to have a relevant in vitro study model available.
Meryl Roudaut   +14 more
doaj   +1 more source

Adaptive evolution of cytochrome b in songbirds

open access: yesBiology Open
ABSTRACT The mitochondrial bc1 complex catalyzes the oxidation of ubiquinol by reducing cytochrome c. Cytochrome b, the catalytic core of bc1, generates superoxide during the oxidation of ubiquinol. Excessive superoxide production is known to accelerate aging and neurodegeneration.
openaire   +3 more sources

Streptavidins Coordinate Biotin Sequestration and Self‐Resistance Within a Biotin‐Pathway Antibiotic Network

open access: yesAdvanced Science, EarlyView.
A conserved genomic region between two streptavidin genes in Streptomyces packages biosynthetic gene clusters for diverse biotin‐pathway antibiotics: acidomycin, stravidin, the new non‐proteinogenic amino acid ANDA, and the new BioA inhibitor α‐methyl‐KAPA.
Sumire Kurosawa   +8 more
wiley   +1 more source

Multi‐Omics Insights Into the Mechanisms of Early Muscle Fiber Difference and Transformation Between Lean‐Type and Chinese Indigenous Pigs

open access: yesAdvanced Science, EarlyView.
Multi‐omics analyses uncover breed‐specific cis‐regulatory landscapes and higher‐order chromatin architectural differences that underlie early postnatal muscle fiber divergence in pigs. A super‐enhancer upstream of PPP3CB recruits MEF2C to activate PPP3CB transcription, while the PPP3CB–MEF2C positive feedback loop promotes oxidative muscle fiber ...
Shuailong Zheng   +8 more
wiley   +1 more source

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