Results 101 to 110 of about 130,472 (328)
Analysis of Binding Site Hot Spots on the Surface of Ras GTPase [PDF]
, 2011 We have recently discovered an allosteric switch in Ras, bringing an additional level of complexity to this GTPase whose mutants are involved in nearly 30% of cancers.
Buhrman, Greg +9 more
core +2 more sources
Advanced Science, EarlyView.Cryo‐EM analysis reveals an asymmetric MMOH–MMOB complex with distinct protomers, where MMOB binding triggers structural rearrangements from the surface to the active site. This conformational asymmetry shortens the Fe···Fe distance to 2.7 Å in one protomer, forming a geometry suitable for O2 activation and supporting a sequential catalytic mechanism ...
Yunha Hwang +9 more
wiley +1 more source
Allosteric Regulation Alters Carrier Domain Translocation in Pyruvate Carboxylase [PDF]
, 2018 Pyruvate carboxylase (PC) catalyzes the ATP-dependent carboxylation of pyruvate to oxaloacetate. The reaction occurs in two separate catalytic domains, coupled by the long-range translocation of a biotinylated carrier domain (BCCP). Here, we use a series
Budelier, Melissa M. +3 more
core +3 more sources
The structural basis of ATP as an allosteric modulator.
PLoS Computational Biology, 2014 Adenosine-5'-triphosphate (ATP) is generally regarded as a substrate for energy currency and protein modification. Recent findings uncovered the allosteric function of ATP in cellular signal transduction but little is understood about this critical ...
Shaoyong Lu +6 more
doaj +1 more source
Generating Dynamic Structures Through Physics‐Based Sampling of Predicted Inter‐Residue Geometries
Advanced Science, EarlyView.While static structure prediction has been revolutionized, modeling protein dynamics remains elusive. trRosettaX2‐Dynamics is presented to address this challenge. This framework leverages a Transformer‐based network to predict inter‐residue geometric constraints, guiding conformation generation via physics‐based iterative sampling. The resulting method
Chenxiao Xiang +3 more
wiley +1 more source
Tuning transcriptional regulation through signaling: A predictive theory of allosteric induction
, 2017 Allosteric regulation is found across all domains of life, yet we still lack simple, predictive theories that directly link the experimentally tunable parameters of a system to its input-output response.
Barnes, Stephanie L. +6 more
core
Advanced Science, EarlyView.High‐grade serous ovarian carcinoma (HGSOC) is plagued by platinum resistance, with malignant ascites closely linked to poor outcomes. Here, we identify ASCOR, a circRNA enriched in ascites small extracellular vesicles (sEVs) from platinum‐resistant HGSOC patients, as a predictor of poor survival. ASCOR enhances platinum resistance in vitro and in vivo
Hanyuan Liu +10 more
wiley +1 more source
Regulation of bicarbonate secretion in marine fish intestine by the calcium-sensing receptor [PDF]
, 2018 In marine fish, high epithelial intestinal HCO3- secretion generates luminal carbonate precipitates of divalent cations that play a key role in water and ion homeostasis.
Fuentes, Juan, Gregorio, Silvia
core +2 more sources
Disorder driven allosteric control of protein activity
Current Research in Structural Biology, 2020 Studies of protein allostery increasingly reveal an involvement of the back and forth order-disorder transitions in this mechanism of protein activity regulation.
Wei-Ven Tee +2 more
doaj +1 more source
Ligand‐Induced Electronic Response Enables Predictive QM/MM Simulations
Advanced Science, EarlyView.Quantum mechanics/molecular mechanics (QM/MM) simulations are powerful tools for modeling complex molecular systems; however, their predictability has been constrained by the ambiguous definition of the QM region. An electronically informed protocol is introduced that defines QM regions by quantifying guest‐induced orbital shifts and charge ...
Nichika Ozawa +2 more
wiley +1 more source