Results 61 to 70 of about 13,758 (245)

Modeling Dissociation-Vibration Coupling with the Macroscopic Chemistry Method [PDF]

AIP Conference Proceedings, 2005
We test the recently developed macroscopic approach to modeling chemistry in DSMC [Lilliley & Macrossan, Physics of Fluids, 16(6), 2054-2066 (2004)], by simulating the flow of rarefied dissociating nitrogen over a blunt cylinder. In this macroscopic method, chemical reactions are decoupled from the collision routine.
openaire   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

FEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source

Chlorine nitrate in the atmosphere [PDF]

Atmospheric Chemistry and Physics, 2018
This review article compiles the characteristics of the gas chlorine nitrate and discusses its role in atmospheric chemistry. Chlorine nitrate is a reservoir of both stratospheric chlorine and nitrogen.
T. von Clarmann, S. Johansson
doaj   +1 more source

Peptide Radical Cations: Gender Determines Dissociation Chemistry

Mass Spectrometry, 2013
Peptide radicals play a significant role in biology as well as mass spectrometry. They can be differentiated into two groups: conventional hydrogen-deficient radicals, e.g. M(+•) as in electron ionization, and much more rare hydrogen-abundant radicals, e.g. [M+2H](+•), as in electron capture/transfer dissociation.
openaire   +3 more sources

pH‐mediated activation of the lysosomal arginine sensor SLC38A9

FEBS Letters, EarlyView.
Cells monitor nutrient levels via the lysosomal transporter SLC38A9 to activate the mechanistic target of rapamycin complex 1 (mTORC1). This study reveals that SLC38A9 function is regulated by pH. We identified histidine 544 as a critical pH sensor that undergoes conformational changes to control amino acid efflux from lysosomes; therefore, it ...
Xuelang Mu, Ampon Sae Her, Tamir Gonen
wiley   +1 more source

Formation of a 14‐Electron Intermediate in Iridium Catalysis through Reductive Elimination: Dissociation Is Rate Determining

ChemistryEurope
Oxidative addition and reductive elimination are fundamental processes in organometallic chemistry and are important in catalytic transformations involving C–H bonds.
Alice Spangenberg, Ola F. Wendt
doaj   +1 more source

Ideal Gas Reference for Association and Dissociation Reactions: I. Basic Concepts

, 2021
Starting with a distance-based definition of molecules consisting of non-interacting atoms, which is in line with IUPAC terminology, we construct an ideal gas reference for chemical association and dissociation reactions.
Adrian, Heinritz, Rhiyaad, Mohamed, Tobias, Binninger   +2 more
core   +1 more source

Residual tail twisting in ascidian larvae is stabilized by asymmetric myofibrils that resist bilateral symmetry restoration

FEBS Letters, EarlyView.
Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure, Misaki K. Nishio, Satoru Okuda, Kohji Hotta   +3 more
wiley   +1 more source

The role of salt bridges, charge density, and subunit flexibility in determining disassembly routes of protein complexes [PDF]

, 2013
Mass spectrometry can be used to characterize multiprotein complexes, defining their subunit stoichiometry and composition following solution disruption and collision-induced dissociation (CID).
Marsh, J, Marsh, Joseph A., Hall, Z, Marsh, JA, Robinson, C, Hernández, Helena, Teichmann, S, Hernández, H, Robinson, Carol V, Robinson, CV, Teichmann, Sarah A, Robinson, Carol V., Hall, Zoe, Teichmann, SA, Marsh, Joseph A; id_orcid, Teichmann, Sarah A.   +15 more
core   +1 more source

Modulation of Homer1 EVH1 domain internal dynamics by putative autism‐associated mutations

FEBS Letters, EarlyView.
The putative autism‐associated M65I and S97L variants of the EVH1 domain of the postsynaptic scaffold protein Homer1 do not exhibit substantial changes in their overall structure or partner binding. Both of them, but especially the M65I variant, show altered internal dynamics relative to the wild‐type domain on the μs‐ms timescale, indicated by the ...
Fanni Farkas, Brigitta Maruzs, Zsófia E. Kálmán, Tomas Klumpler, Gyula Batta, Bálint Péterfia, Zoltán Gáspári   +6 more
wiley   +1 more source