Results 11 to 20 of about 205,153 (377)

Tyrosine Dephosphorylation of H2AX Modulates Apoptosis and Survival Decisions [PDF]

open access: yesNature, 2009
Life and death fate decisions allow cells to avoid massive apoptotic death in response to genotoxic stress. Although the regulatory mechanisms and signalling pathways controlling DNA repair and apoptosis are well characterized, the precise molecular ...
P. J. Cook   +5 more
semanticscholar   +4 more sources

Ultrasensitivity in Phosphorylation-Dephosphorylation Cycles with Little Substrate [PDF]

open access: gold, 2013
Cellular decision-making is driven by dynamic behaviours, such as the preparations for sunrise enabled by circadian rhythms and the choice of cell fates enabled by positive feedback.
Bruno M.C. Martins, Peter S. Swain
core   +12 more sources

Involvement of the JNK/FOXO3a/Bim Pathway in Neuronal Apoptosis after Hypoxic-Ischemic Brain Damage in Neonatal Rats. [PDF]

open access: yes, 2015
c-Jun N-terminal kinase (JNK) plays a key role in the regulation of neuronal apoptosis. Previous studies have revealed that forkhead transcription factor (FOXO3a) is a critical effector of JNK-mediated tumor suppression.
Li, Deyuan   +8 more
core   +7 more sources

PPM1A Controls Diabetic Gene Programming through Directly Dephosphorylating PPAR?? at Ser273 [PDF]

open access: yes, 2020
Peroxisome proliferator-activated receptor gamma (PPAR gamma) is a master regulator of adipose tissue biology. In obesity, phosphorylation of PPAR gamma at Ser273 (pSer273) by cyclin-dependent kinase 5 (CDK5)/extracellular signal-regulated kinase (ERK ...
Choi, Jang Hyun   +11 more
core   +1 more source

Activation of ADF/cofilin by phosphorylation-regulated Slingshot phosphatase is required for the meiotic spindle assembly in Xenopus laevis oocytes [PDF]

open access: yes, 2013
We identify Xenopus ADF/cofilin (XAC) and its activator, Slingshot phosphatase (XSSH), as key regulators of actin dynamics essential for spindle microtubule assembly during Xenopus oocyte maturation.
Abe, Hiroshi   +9 more
core   +1 more source

Neuroprotective effects of ginsenoside Rg1-induced neural stem cell transplantation on hypoxic-ischemic encephalopathy

open access: yesNeural Regeneration Research, 2015
Ginsenoside Rg1 is the major pharmacologically active component of ginseng, and is reported to have various therapeutic actions. To determine whether it induces the differentiation of neural stem cells, and whether neural stem cell transplantation after ...
Ying-bo Li   +4 more
doaj   +1 more source

On the existence of Hopf bifurcations in the sequential and distributive double phosphorylation cycle [PDF]

open access: yes, 2019
Protein phosphorylation cycles are important mechanisms of the post translational modification of a protein and as such an integral part of intracellular signaling and control. We consider the sequential phosphorylation and dephosphorylation of a protein
Conradi, Carsten   +2 more
core   +2 more sources

Genomic structure and alternative splicing of murine R2B receptor protein tyrosine phosphatases (PTPκ, μ, ρ and PCP-2)

open access: yesBMC Genomics, 2004
Background Four genes designated as PTPRK (PTPκ), PTPRL/U (PCP-2), PTPRM (PTPμ) and PTPRT (PTPρ) code for a subfamily (type R2B) of receptor protein tyrosine phosphatases (RPTPs) uniquely characterized by the presence of an N-terminal MAM domain.
Frostholm Adrienne   +4 more
doaj   +1 more source

Shift in Conformational Equilibrium Underlies the Oscillatory Phosphoryl Transfer Reaction in the Circadian Clock

open access: yesLife, 2021
Oscillatory phosphorylation/dephosphorylation can be commonly found in a biological system as a means of signal transduction though its pivotal presence in the workings of circadian clocks has drawn significant interest: for example in a significant ...
Pyonghwa Kim   +4 more
doaj   +1 more source

Feedback Inhibition of the Unfolded Protein Response by GADD34-Mediated Dephosphorylation of eIF2α

open access: yesJournal of Cell Biology, 2001
Phosphorylation of the α subunit of eukaryotic translation initiation factor 2 (eIF2α) on serine 51 integrates general translation repression with activation of stress-inducible genes such as ATF4, CHOP, and BiP in the unfolded protein response.
I. Novoa   +3 more
semanticscholar   +1 more source

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