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28.410 Aktuelle Fachpublikationen in Proceedings of the National Academy of Sciences current issue

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Symbiotic root infections in Medicago truncatula require remorin-mediated receptor stabilization in membrane nanodomains [Plant Biology]

15.05.2018 | Pengbo Liang; Thomas F. Stratil; Claudia Popp; Macarena Marín; Jessica Folgmann; Kirankumar S. Mysore; Jiangqi Wen; ..., Proceedings of the National Academy of Sciences current issue, 2018

Pattern recognition receptors control the cellular entry of pathogenic as well as symbiotic microbes. While ligand-induced changes in receptor mobility at the plasma membrane and their localization in membrane nanodomains are general features, the molecular mechanism and the biological relevance ...

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Site-selective measurement of coupled spin pairs in an organic semiconductor [Applied Physical Sciences]

15.05.2018 | S. L. Bayliss; L. R. Weiss; A. Mitioglu; K. Galkowski; Z. Yang; K. Yunusova; A. Surrente; K. J. Thorley; J. Behrends ..., Proceedings of the National Academy of Sciences current issue, 2018

Pairs of spins in molecular materials have attracted significant interest as intermediates in photovoltaic devices and light-emitting diodes. However, isolating the local spin and electronic environments of such intermediates has proved challenging due to the complex structures in which they ...

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Insulin promoter in human pancreatic {beta} cells contacts diabetes susceptibility loci and regulates genes affecting insulin metabolism [Cell Biology]

15.05.2018 | Xing Jian; Gary Felsenfeld, Proceedings of the National Academy of Sciences current issue, 2018

We show that in a human pancreatic β cell line the human insulin gene promoter on chromosome 11 physically contacts sites on other chromosomes. Many of these contacted sites contain type 1 or type 2 diabetes susceptibility loci. We find that insulin gene expression can affect expression of ...

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Escherichia coli cultures maintain stable subpopulation structure during long-term evolution [Evolution]

15.05.2018 | Megan G. Behringer; Brian I. Choi; Samuel F. Miller; Thomas G. Doak; Jonathan A. Karty; Wanfeng Guo; Michael Lynch, Proceedings of the National Academy of Sciences current issue, 2018

Understanding how microbes adapt to novel environments is essential to understanding acute bacterial infection and long-term disease, as genetic architecture underlying the production and maintenance of genetic variation influences a population’s potential for adaptation. In this in-depth ...

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Correction for Martin-Sanchez et al., TWEAK and RIPK1 mediate a second wave of cell death during AKI [Correction]

15.05.2018 | National Academy of Sciences, Proceedings of the National Academy of Sciences current issue, 2018

CELL BIOLOGY Correction for “TWEAK and RIPK1 mediate a second wave of cell death during AKI,” by Diego Martin-Sanchez, Miguel Fontecha-Barriuso, Susana Carrasco, Maria Dolores Sanchez-Niño, Anne von Mässenhausen, Andreas Linkermann, Pablo Cannata-Ortiz, Marta Ruiz-Ortega, Jesus Egido, Alberto ...

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Symbolic emblems of the Levantine Aurignacians as a regional entity identifier (Hayonim Cave, Lower Galilee, Israel) [Anthropology]

15.05.2018 | José-Miguel Tejero; Anna Belfer-Cohen; Ofer Bar-Yosef; Vitaly Gutkin; Rivka Rabinovich, Proceedings of the National Academy of Sciences current issue, 2018

The emergence and diffusion of Upper Paleolithic (UP) typo-technical traditions are among the most debated topics related to anatomically modern humans’ colonization of and establishment in Eurasia. The Levantine Aurignacian represents one of the UP cultural entities in the Near East, and its ...

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Quantifying ecological impacts of mass extinctions with network analysis of fossil communities [Earth, Atmospheric, and Planetary Sciences]

15.05.2018 | A. D. Muscente; Anirudh Prabhu; Hao Zhong; Ahmed Eleish; Michael B. Meyer; Peter Fox; Robert M. Hazen; Andrew H. Knoll, Proceedings of the National Academy of Sciences current issue, 2018

The geologic record provides evidence of repeated diversification events and mass extinctions, which entailed benchmark changes in biodiversity and ecology. For insights into these events, we explore the fossil record of marine animal communities using a network-based approach to quantifying ...

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Comparative terrestrial feed and land use of an aquaculture-dominant world [Sustainability Science]

15.05.2018 | Halley E. Froehlich; Claire A. Runge; Rebecca R. Gentry; Steven D. Gaines; Benjamin S. Halpern, Proceedings of the National Academy of Sciences current issue, 2018

Studies are revealing the potential benefits of shifting human diets away from meat and toward other protein sources, including seafood. The majority of seafood is now, and for the foreseeable future, farmed (i.e., aquaculture). As the fastest-growing food sector, fed aquaculture species ...

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Ligand metathesis as rational strategy for the synthesis of cubane-type heteroleptic iron-sulfur clusters relevant to the FeMo cofactor [Chemistry]

15.05.2018 | Gan Xu; Zheng Wang; Rong Ling; Jie Zhou; Xu-Dong Chen; Richard H. Holm, Proceedings of the National Academy of Sciences current issue, 2018

The biosynthesis and mechanism of action of nitrogenase, an enzyme that converts dinitrogen to ammonia under ambient conditions, are problems of prominent significance in metallobiochemistry. Because the active centers of the enzyme are metal–ligand clusters, it is feasible that they are ...

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Symbiotic polydnavirus and venom reveal parasitoid to its hyperparasitoids [Ecology]

15.05.2018 | Feng Zhu; Antonino Cusumano; Janneke Bloem; Berhane T. Weldegergis; Alexandre Villela; Nina E. Fatouros; Joop J. A. ..., Proceedings of the National Academy of Sciences current issue, 2018

Symbiotic relationships benefit organisms in utilization of new niches. In parasitoid wasps, symbiotic viruses and venom that are injected together with wasp eggs into the host caterpillar suppress immune responses of the host and enhance parasitoid survival. We found that the virus also has ...

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