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2020-09-28
14:34
OpenAccess [PUBDB-2020-03588] Journal Article
et al
Matching the heavy-quark fields in QCD and HQET at four loops
[DESY-20-092; P3H-20-023; SAGEX-20-14; TTP20-024; arXiv:2005.14047]
Physical review / D 102(5), 054008 (1-22) () [10.1103/PhysRevD.102.054008]  GO
The QCD/HQET matching coefficient for the heavy-quark field is calculated up to four loops. It must be finite; this requirement produces analytical results for some terms in the four-loop on-shell heavy-quark field renormalization constant which were previously only known numerically. [...]
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ddc:530

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2020-09-25
14:37
OpenAccess [PUBDB-2020-03579] Journal Article
et al
Btk SH2-kinase interface is critical for allosteric kinase activation and its targeting inhibits B-cell neoplasms
Bruton’s tyrosine kinase (Btk) is critical for B-cell maturation and activation. Btk loss-of-function mutations cause human X-linked agammaglobulinemia (XLA) [...]
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ddc:500

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2020-09-25
14:32
OpenAccess [PUBDB-2020-03578] Journal Article

Simulation of small-angle X-ray scattering data of biological macromolecules in solution
This article presents IMSIM, an application to simulate two-dimensional small-angle X-ray scattering patterns and, further, one-dimensional profiles from biological macromolecules in solution. IMSIM implements a statistical approach yielding two-dimensional images in TIFF, CBF or EDF format, which may be readily processed by existing data-analysis pipelines [...]
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ddc:540

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2020-09-25
14:26
OpenAccess [PUBDB-2020-03577] Journal Article
et al
Molecular Mechanisms of the Interactions of N-(2-Hydroxypropyl)methacrylamide Copolymers Designed for Cancer Therapy with Blood Plasma Proteins
The binding of plasma proteins to a drug carrier alters the circulation of nanoparticles (NPs) in the bloodstream, and, as a consequence, the anticancer efficiency of the entire nanoparticle drug delivery system. We investigate the possible interaction and the interaction mechanism of a polymeric drug delivery system based on N-(2-hydroxypropyl)methacrylamide (HPMA) copolymers (pHPMA) with the most abundant proteins in human blood plasma—namely, human serum albumin (HSA), immunoglobulin G (IgG), fibrinogen (Fbg), and apolipoprotein (Apo) E4 and A1—using a combination of small-angle X-ray scattering (SAXS), analytical ultracentrifugation (AUC), and nuclear magnetic resonance (NMR) [...]
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ddc:610

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2020-09-25
11:40
OpenAccess [PUBDB-2020-03575] Journal Article
et al
Probing the scale of grand unification with gravitational waves
[CERN-TH-2019-215; DESY-19-210; IPMU 19-0179; arXiv:1912.03695]
The spontaneous breaking of U(1)$_{B−L}$ around the scale of grand unification can simultaneously account for hybrid inflation, leptogenesis, and neutralino dark matter, thus resolving three major puzzles of particle physics and cosmology in a single predictive framework. The $B−L$ phase transition also results in a network of cosmic strings. [...]
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ddc:530

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2020-09-25
10:05
OpenAccess [PUBDB-2020-03573] Journal Article
et al
SASBDB: Towards an automatically curated and validated repository for biological scattering data
Protein science 29(1), 66 - 75 () [10.1002/pro.3731]  GO
Small‐angle scattering (SAS) of X‐rays and neutrons is a fundamental tool to study the nanostructural properties, and in particular, biological macromolecules in solution. In structural biology, SAS recently transformed from a specialization into a general technique leading to a dramatic increase in the number of publications reporting structural models [...]
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ddc:610

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2020-09-25
09:56
OpenAccess [PUBDB-2020-03572] Dissertation / PhD Thesis

Biophysical and structural characterization of the interaction of the circadian transcription factor BMAL1 with its coactivator CBP
1-151 () [10.3204/PUBDB-2020-03572] = Dissertation, Johannes Gutenberg University Mainz, 2020  GO
The mammalian CLOCK:BMAL1 transcription factor complex and its coactivators CREB-binding protein (CBP)/p300 and mixed-lineage leukemia 1 (MLL1) play a central role in circadian transcriptional regulation and chromatin modification. The interactions of BMAL1’s C-terminal transactivation domain (TAD) with the KIX domain of CBP/p300 (activating) and with CRY1 (repressing) as well as the BMAL1 G-region preceding the TAD regulate the circadian oscillations [...]
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2020-09-25
09:49
OpenAccess [PUBDB-2020-03571] Journal Article
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The electronic structure of the aqueous permanganate ion: aqueous-phase energetics and molecular bonding studied using liquid jet photoelectron spectroscopy
Physical chemistry, chemical physics 22(36), 20311 - 20330 (1-20) () [10.1039/D0CP04033A]  GO
Permanganate aqueous solutions, MnO$_4$$^-$(aq.), were studied using liquid-micro-jet-based soft X-ray non-resonant and resonant photoelectron spectroscopy to determine valence and core-level binding energies. To identify possible differences in the energetics between the aqueous bulk and the solution-gas interface, non-resonant spectra were recorded at two different probing depths. [...]
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ddc:540

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2020-09-25
09:47
OpenAccess [PUBDB-2020-03570] Dissertation / PhD Thesis

Structural investigation and characterisation of the sarcomeric Z-Disk Titin-Obscurin-Complex and the M-Band Myomesin My5-Dimer
1-183 () [10.3204/PUBDB-2020-03570] = Dissertation, Universitätsklinikum Hamburg-Eppendorf, 2020  GO
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2020-09-24
17:52
Embargoed OpenAccess [PUBDB-2020-03569] Journal Article
et al
Discovery of terrestrial allabogdanite $(Fe,Ni)_{2}P$, and the effect of Ni and Mo substitution on the barringerite-allabogdanite high-pressure transition
Minerals formed at high pressures are sensitive indicators of extreme pressure-temperature conditions that occur in nature. The discovery of the high-pressure polymorph of (Fe,Ni)$_2$P, allabogdanite in the surficial pyrometamorphic rocks of the Hatrurim Formation (the Mottled Zone) surrounding the Dead Sea basin in Israel is the first terrestrial occurrence of a mineral previously only found in iron meteorites. [...]
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ddc:540

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