Results 31 to 40 of about 155,970 (214)

Energy metabolism and glutamate-glutamine cycle in the brain: a stoichiometric modeling perspective [PDF]

BMC Systems Biology 7:103 (2013), 2013
The energetics of cerebral activity critically relies on the functional and metabolic interactions between neurons and astrocytes. Important open questions include the relation between neuronal versus astrocytic energy demand, glucose uptake and intercellular lactate transfer, as well as their dependence on the level of activity.
arxiv   +1 more source

Replacement of all alpha-domain lysines with glutamates reduces metallothionein detoxification function.

Biochemical and Biophysical Research Communications - BBRC, 1994
Mammalian metallothioneins (MTs) possess eight highly conserved lysine residues, including three in each of two metal binding domains. We used site-directed mutagenesis to replace these intradomain lysines in Chinese hamster ovary MT2 with glutamic acid ...
C. Cody, P. C. Huang
semanticscholar   +1 more source

Long-term NMDAR antagonism correlates reduced astrocytic glutamate uptake with anxiety-like phenotype

Frontiers in Cellular Neuroscience, 2015
The role of glutamate N-methyl-D-Aspartate receptor (NMDAR) hypofunction has been extensively studied in schizophrenia; however, less is known about its role in anxiety disorders.
Eduardo R Zimmer, Vitor R Torrez, Eduardo eKalinine, Eduardo eKalinine, Marina C Augustin, Kamila C Zenki, Roberto Farina Almeida, Gisele eHansel, Alexandre P Muller, Diogo O Souza, Rodrigo eMachado-Vieira, Rodrigo eMachado-Vieira, Luis V Portela   +12 more
doaj   +1 more source

Insertion of the FeB cofactor in cNORs lacking metal inserting chaperones

FEBS Letters, EarlyView.
Nitric oxide reductase is an enzyme found in the bacterial denitrification pathway. The NOR active site contains a non‐heme iron, often, but not always inserted with the assistance of chaperones. Here, we study the insertion of FeB in the subfamily of cNORs lacking chaperones and found a putative channel, conserved in the family, perhaps enabling the ...
Sofia Appelgren, Pia Ädelroth
wiley   +1 more source

Two Conserved Glutamates in the Bacterial Nitric Oxide Reductase Are Essential for Activity but Not Assembly of the Enzyme

Journal of Bacteriology, 2001
The bacterial nitric oxide reductase (NOR) is a divergent member of the family of respiratory heme-copper oxidases. It differs from other family members in that it contains an FeB–heme-Fe dinuclear catalytic center rather than a CuB–heme-Fe center and in
G. Butland, S. Spiro, N. Watmough, D. Richardson   +3 more
semanticscholar   +1 more source

Taurine promotes glucagon‐like peptide‐1 secretion in enteroendocrine L cells

FEBS Letters, EarlyView.
Taurine, a sulfur‐containing amino acid, is likely taken up by enteroendocrine L cells via the taurine transporter. This process increases the levels of cytosolic ATP. The increase in intracellular Ca2+ concentrations and glucagon‐like peptide‐1 secretion through membrane depolarization is caused by the closure of ATP‐sensitive potassium channels ...
Yuri Osuga, Kazuki Harada, Takuya Yamauchi, Tetsuya Kitaguchi, Masami Yokota Hirai, Mitsuharu Matsumoto, Takashi Tsuboi   +6 more
wiley   +1 more source

Cofactor Tail Length Modulates Catalysis of Bacterial F420-Dependent Oxidoreductases

Frontiers in Microbiology, 2017
F420 is a microbial cofactor that mediates a wide range of physiologically important and industrially relevant redox reactions, including in methanogenesis and tetracycline biosynthesis.
Blair Ney, Blair Ney, Carlo R. Carere, Richard Sparling, Richard Sparling, Thanavit Jirapanjawat, Matthew B. Stott, Colin J. Jackson, John G. Oakeshott, Andrew C. Warden, Chris Greening, Chris Greening   +11 more
doaj   +1 more source

Probing Scalar Coupling Differences via Long-Lived Singlet States [PDF]

, 2015
We probe small scalar coupling differences via the coherent interactions between two nuclear spin singlet states in organic molecules. We show that the spin-lock induced crossing (SLIC) technique enables the coherent transfer of singlet order between one spin pair and another.
arxiv   +1 more source

In Vivo Magnetic Resonance Spectroscopy by J-Locked Chemical Shift Encoding for Determination of Neurochemical Concentration and Transverse Relaxation Time [PDF]

arXiv, 2023
Cell pathology in neuropsychiatric disorders has mainly been accessible by analyzing postmortem tissue samples. Although molecular transverse relaxation informs local cellular microenvironment via molecule-environment interactions, precise determination of the transverse relaxation times of molecules with scalar couplings (J), such as glutamate and ...
arxiv  

The multiple roles of the NlpC_P60 peptidase family in mycobacteria – an underexplored target for antimicrobial drug discovery

FEBS Letters, EarlyView.
The NlpC_P60 superfamily of peptidases is recognised by its key role in bacterial cell wall homeostasis. Recently, studies have also described the involvement of NlpC_P60‐like enzymes in bacterial competitive mechanisms and pathogenesis across several lineages.
Catharina dos Santos Silva, Marcio Vinicius Bertacine Dias   +1 more
wiley   +1 more source