Results 61 to 70 of about 30,707 (232)

Spermine deficiency in Gy mice caused by deletion of the spermine synthase gene [PDF]

open access: yesHuman Molecular Genetics, 1998
Two mouse mutations gyro (Gy) and hypophosphatemia (Hyp) are mouse models for X-linked hypophosphatemic rickets and have been shown to be deleted for the 5' and 3' end of the mouse homolog of PHEX (phosphate regulating gene with homologies to endopeptidases on the X chromosome; formerly called PEX), respectively.
B, Lorenz   +9 more
openaire   +2 more sources

Nickel Foam Electrodes—A Versatile, Powerful, and Readily Available Tool in Electro‐Organic Synthesis

open access: yesThe Chemical Record, EarlyView.
Nickel foam—one material, two faces, and several versatile roles depending on electrolytic conditions. For more than 50 years, nickel foam electrodes have served in electrosynthesis as powerful and readily available electrode materials. Due to their inexpensive nature and easy handling, they have been widely employed.
Rok Narobe   +2 more
wiley   +1 more source

Bacterial infection reinforces host metabolic flux from arginine to spermine for NLRP3 inflammasome evasion

open access: yesCell Reports, 2021
Summary: Hosts recognize cytosolic microbial infection via the nucleotide-binding domain-like receptor (NLR) protein family, triggering inflammasome complex assembly to provoke pyroptosis or cytokine-related caspase-1-dependent antimicrobial responses ...
Jiatiao Jiang   +5 more
doaj   +1 more source

MTAP Deficiency as a Metabolic Vulnerability in Cancer: Implications for Synthetic Lethal Therapy

open access: yesCancer Science, EarlyView.
MTAP deletion creates a therapeutically actionable metabolic vulnerability through MTA accumulation and PRMT5 dependency. This review summarizes the biochemical basis of MTAP‐directed synthetic lethality, emerging PRMT5/MAT2A inhibitors, clinicogenomic features of MTAP‐deleted tumors, and future strategies for precision oncology.
Hiroaki Ikushima, Hidenori Kage
wiley   +1 more source

On the mechanism of spermine transport in liver mitochondria [PDF]

open access: yes, 1988
Spermine penetrates the mitochondrial matrix at significant rates which increase sharply and non-ohmically with membrane potential. In this respect, spermine uptake is qualitatively similar to that of other cations whose electrophoretic transport has ...
Siliprandi N   +4 more
core   +1 more source

Difluoromethylornithine rebalances aberrant polyamine ratios in Snyder–Robinson syndrome

open access: yesEMBO Molecular Medicine, 2023
Snyder–Robinson syndrome (SRS) results from mutations in spermine synthase (SMS), which converts the polyamine spermidine into spermine. Affecting primarily males, common manifestations of SRS include intellectual disability, osteoporosis, hypotonia, and
Tracy Murray Stewart   +8 more
doaj   +1 more source

Absence of spermine in filamentous fungi [PDF]

open access: yesJournal of Bacteriology, 1977
Polyamines were examined in several yeasts and filamentous fungi. Whereas putrescine, spermidine, and spermine were present in the yeasts, spermine was not detected in any of the filamentous fungi.
Nickerson, Kenneth W.   +2 more
openaire   +2 more sources

Inhibition of Ornithine Decarboxylase 1 Mitigates Denervation‐Induced Muscle Atrophy by Suppressing Proteolysis and Preserving Muscle Stem Cell Homeostasis

open access: yesCell Proliferation, EarlyView.
Polyamine metabolism is innervation responsive and involved in denervation‐induced muscle atrophy. Inhibition of polyamine metabolism attenuates muscle atrophy by restraining proteolysis and preserving MuSCs homeostasis. Denervation‐induced activation of FAP‐derived FGF7 drives premature MuSCs activation, while DFMO suppresses this paracrine cue to ...
Mingming Zhang   +9 more
wiley   +1 more source

Ligand binding represses bacterial histidine kinase activity by inhibiting its dimerization

open access: yesThe FEBS Journal, EarlyView.
PdtaS is a kinase in the pathogen Mycobacterium tuberculosis that senses copper and nitric oxide and controls virulence gene expression, but how the kinase senses these compounds was unclear. We show that PdtaS is active as a dimer with each monomer phosphorylating the other in trans.
Gaurav D. Sankhe   +6 more
wiley   +1 more source

EMF2 deficiency disrupts epigenetic and chromatin organization landscapes, blocking root regeneration competence in Arabidopsis

open access: yesNew Phytologist, EarlyView.
EMF2 mutation alters transcriptomic profiles in Arabidopsis calli while retaining responsiveness during root induction. Summary Plant de novo organogenesis depends on callus formation, yet the epigenetic mechanisms governing organ regeneration remain poorly understood.
Zhidan Wang   +4 more
wiley   +1 more source

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