Search Results - "Shahar, Anat"
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1
Non-chondritic iron isotope ratios in planetary mantles as a result of core formation
Published in Nature geoscience (01-04-2017)“…Information about the materials and conditions involved in planetary formation and differentiation in the early Solar System is recorded in iron isotope…”
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2
Thermal equation of state of hcp‐iron: Constraint on the density deficit of Earth's solid inner core
Published in Geophysical research letters (16-07-2016)“…We conducted high‐pressure experiments on hexagonal close packed iron (hcp‐Fe) in MgO, NaCl, and Ne pressure‐transmitting media and found general agreement…”
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3
Heavy iron isotope composition of iron meteorites explained by core crystallization
Published in Nature geoscience (01-09-2020)“…Similar to Earth, many large planetesimals in the Solar System experienced planetary-scale processes such as accretion, melting and differentiation. As their…”
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4
High pressure and temperature electrical resistivity of iron and implications for planetary cores
Published in Geophysical research letters (16-01-2013)“…Electrical resistivity measurements of polycrystalline iron have been performed at 5, 7, and 15 GPa and in the temperature range 293–2200 K by employing a…”
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5
Rocky Planet or Water World? Observability of Low-density Lava World Atmospheres
Published in The Astrophysical journal (01-09-2023)“…Abstract Super-Earths span a wide range of bulk densities, indicating a diversity in interior conditions beyond that seen in the solar system. In particular,…”
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6
Perturbed N-glycosylation of Halobacterium salinarum archaellum filaments leads to filament bundling and compromised cell motility
Published in Nature communications (11-07-2024)“…The swimming device of archaea—the archaellum—presents asparagine (N)-linked glycans. While N-glycosylation serves numerous roles in archaea, including…”
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Unexpected implications of STAT3 acetylation revealed by genetic encoding of acetyl-lysine
Published in Biochimica et biophysica acta. General subjects (01-09-2019)“…The signal transducer and activator of transcription 3 (STAT3) protein is activated by phosphorylation of a specific tyrosine residue (Tyr705) in response to…”
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8
What makes a planet habitable?
Published in Science (American Association for the Advancement of Science) (03-05-2019)“…Efforts to identify habitable planets must look beyond atmospheres to planetary interiors The Milky Way Galaxy teems with planetary systems, most of which are…”
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Acetylation-dependent coupling between G6PD activity and apoptotic signaling
Published in Nature communications (05-10-2023)“…Lysine acetylation has been discovered in thousands of non-histone human proteins, including most metabolic enzymes. Deciphering the functions of acetylation…”
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10
Structural Basis for p53 Lys120-Acetylation-Dependent DNA-Binding Mode
Published in Journal of molecular biology (31-07-2016)“…Normal cellular homeostasis depends on tight regulation of gene expression, which requires the modulation of transcription factors' DNA-binding specificity…”
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11
Equilibrium high-temperature Fe isotope fractionation between fayalite and magnetite: An experimental calibration
Published in Earth and planetary science letters (30-04-2008)“…The iron isotopic fractionation factor between magnetite and fayalite was measured at high temperature in a piston–cylinder apparatus. For the first time, the…”
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12
The metal binding site composition of the cation diffusion facilitator protein MamM cytoplasmic domain impacts its metal responsivity
Published in Scientific reports (20-08-2020)“…The cation diffusion facilitator (CDF) is a conserved family of divalent d-block metal cation transporters that extrude these cations selectively from the…”
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13
A sulfide perspective on iron isotope fractionation during ocean island basalt petrogenesis
Published in Geochimica et cosmochimica acta (15-01-2019)“…Iron isotopic compositions are demonstrably powerful tracers of foundational planetary processes, including crust and core formation. In many volcanic…”
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14
Structural basis for the intracellular regulation of ferritin degradation
Published in Nature communications (07-05-2024)“…The interaction between nuclear receptor coactivator 4 (NCOA4) and the iron storage protein ferritin is a crucial component of cellular iron homeostasis. The…”
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15
Mapping protein selectivity landscapes using multi-target selective screening and next-generation sequencing of combinatorial libraries
Published in Nature communications (26-09-2018)“…Characterizing the binding selectivity landscape of interacting proteins is crucial both for elucidating the underlying mechanisms of their interaction and for…”
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16
High-temperature Si isotope fractionation between iron metal and silicate
Published in Geochimica et cosmochimica acta (01-12-2011)“…The Si stable isotope fractionation between metal and silicate has been investigated experimentally at 1800, 2000, and 2200 °C. We find that there is a…”
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17
Effect of carbon, sulfur and silicon on iron melting at high pressure: Implications for composition and evolution of the planetary terrestrial cores
Published in Geochimica et cosmochimica acta (01-08-2013)“…High-pressure melting experiments in the Fe–S–C ternary and Fe–S–Si–C quaternary systems have been conducted in the range of 3.5–20GPa and 920–1700°C in the…”
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18
Experimentally determined Si isotope fractionation between silicate and Fe metal and implications for Earth's core formation
Published in Earth and planetary science letters (30-10-2009)“…Stable isotope fractionation amongst phases comprising terrestrial planets and asteroids can be used to elucidate planet-forming processes. To date, the…”
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Imprint of chondrule formation on the K and Rb isotopic compositions of carbonaceous meteorites
Published in Science advances (03-12-2021)“…Chondrites display isotopic variations for moderately volatile elements, the origin of which is uncertain and could have involved evaporation/condensation…”
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The chemical case for Mercury mantle stripping
Published in Progress in earth and planetary science (11-12-2019)“…Mercury, the Solar System’s innermost planet, has an unusually massive core prompting speculation that the planet lost silicate after it formed. Using the…”
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