Results 21 to 30 of about 1,010,564 (310)

The Bacillus subtilis signaling protein SpoIVB defines a new family of serine peptidases [PDF]

open access: yes, 2002
The protein SpoIVB plays a key role in signaling in the sigma (K) checkpoint of Bacillus subtilis. This regulatory mechanism coordinates late gene expression during development in this organism and we have recently shown SpoIVB to be a serine peptidase ...
Brannigan, J A, Cutting, S M, Hoa, N T
core   +2 more sources

Serine proteases [PDF]

open access: yesIUBMB Life, 2009
AbstractOver one third of all known proteolytic enzymes are serine proteases. Among these, the trypsins underwent the most predominant genetic expansion yielding the enzymes responsible for digestion, blood coagulation, fibrinolysis, development, fertilization, apoptosis, and immunity.
openaire   +3 more sources

Asparagine promotes cancer cell proliferation through use as an amino acid exchange factor. [PDF]

open access: yes, 2016
Cellular amino acid uptake is critical for mTOR complex 1 (mTORC1) activation and cell proliferation. However, the regulation of amino acid uptake is not well-understood.
Braas, Daniel   +4 more
core   +1 more source

Iterative focused screening with biological fingerprints identifies selective Asc-1 inhibitors distinct from traditional high throughput screening [PDF]

open access: yes, 2017
N-methyl-d-aspartate receptors (NMDARs) mediate glutamatergic signaling that is critical to cognitive processes in the central nervous system, and NMDAR hypofunction is thought to contribute to cognitive impairment observed in both schizophrenia and ...
Amoss, Adam   +18 more
core   +2 more sources

Protease inhibitors targeting coronavirus and filovirus entry. [PDF]

open access: yes, 2015
In order to gain entry into cells, diverse viruses, including Ebola virus, SARS-coronavirus and the emerging MERS-coronavirus, depend on activation of their envelope glycoproteins by host cell proteases.
Agudelo, Juliet   +10 more
core   +1 more source

Phosphatidylethanolamine homeostasis under conditions of impaired CDP-ethanolamine pathway or phosphatidylserine decarboxylation

open access: yesFrontiers in Nutrition, 2023
Phosphatidylethanolamine is the major inner-membrane lipid in the plasma and mitochondrial membranes. It is synthesized in the endoplasmic reticulum from ethanolamine and diacylglycerol (DAG) by the CDP-ethanolamine pathway and from phosphatidylserine by
Michaela St Germain   +2 more
doaj   +1 more source

Controlled rotation mechanism of DNA strand exchange by the Hin serine recombinase. [PDF]

open access: yes, 2016
DNA strand exchange by serine recombinases has been proposed to occur by a large-scale rotation of halves of the recombinase tetramer. Here we provide the first direct physical evidence for the subunit rotation mechanism for the Hin serine invertase ...
Johnson, Reid C   +4 more
core   +1 more source

Dynamics at the serine loop underlie differential affinity of cryptochromes for CLOCK:BMAL1 to control circadian timing. [PDF]

open access: yes, 2020
Mammalian circadian rhythms are generated by a transcription-based feedback loop in which CLOCK:BMAL1 drives transcription of its repressors (PER1/2, CRY1/2), which ultimately interact with CLOCK:BMAL1 to close the feedback loop with ~24 hr periodicity ...
Abraham   +70 more
core   +3 more sources

Free radical destruction of hydroxyl-containing amino acids

open access: yesЖурнал Белорусского государственного университета: Химия, 2019
А new way of the free radical ROS- and HOCl-induced destruction of serine, threonine, and their peptide derivatives due to the nitrogen-centered radicals formation and their subsequent decomposition with the side chain elimination has been established ...
Anastasia A. Sladkova   +3 more
doaj   +1 more source

cGMP-dependent protein kinase regulates Rap1 signaling in platelets : poster presentation [PDF]

open access: yes, 2007
cGMP- and cAMP-dependent protein kinases (cGK and cAK) mediate the inhibitory effects of endothelium-derived messenger molecules nitric oxide and prostacyclin on platelets.
Danielewski, Oliver   +5 more
core   +1 more source

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