Results 41 to 50 of about 149,778 (264)
Dissociative Recombination: building and destroying aspects in interstellar chemistry
Journal of Physics: Conference Series, 2011 We discuss the ionic composition of the interstellar molecular gas. Particular emphasis is put on the halogenic ions such as H2Cl+ and H2F+ for which no DR studies have been published up to now.
Evelyne Roueff, Eric Herbst
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Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation
FEBS Letters, EarlyView.Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe +3 more
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The newfound relationship between extrachromosomal DNAs and excised signal circles
FEBS Letters, EarlyView.Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
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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
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Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions
FEBS Letters, EarlyView.We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva +10 more
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FEBS Letters, EarlyView.The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li +2 more
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ChemistryEuropeOxidative 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
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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.
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FEBS Letters, EarlyView.We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee +3 more
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The Historical Development of the Words “Dissociation” and “Ionization” in Chemistry
Revista Debates em Ensino de Química, 2023 The words "dissociation" and "ionization" are sources of misconceptions in chemistry teaching, mainly in the subjects of acids and bases, chemical equilibrium and solutions. In the present article, the historical development of the two words was analyzed.
Giovanni Miraveti Carriello +2 more
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