Results 21 to 30 of about 85,684 (68)

Mutually stabilizing interactions between proto-peptides and RNA

open access: yesNature Communications, 2020
The close synergy between peptides and nucleic acids in current biology is suggestive of a functional co-evolution between the two polymers. Here we show that cationic proto-peptides (depsipeptides and polyesters), either produced as mixtures from ...
Moran Frenkel-Pinter   +9 more
semanticscholar   +1 more source

The Oligo–Miocene closure of the Tethys Ocean and evolution of the proto-Mediterranean Sea

open access: yesScientific Reports, 2020
The tectonically driven Cenozoic closure of the Tethys Ocean invoked a significant reorganization of oceanic circulation and climate patterns on a global scale. This process culminated between the Mid Oligocene and Late Miocene, although its exact timing
A. Torfstein, J. Steinberg
semanticscholar   +1 more source

Proto-Tethys ophiolitic mélange in SW Yunnan: constraints from zircon U-Pb geochronology and geochemistry

open access: yes, 2021
An early Paleozoic Proto-Tethys ocean in western Yunnan has long been postulated although no robust geological evidence has been identified. Here we investigated the recently-identified Mayidui and Wanhe ophiolitic melanges in SW Yunnan, which occurs in ...
Guichun Liu   +9 more
semanticscholar   +1 more source

Proto-oncogene Src links lipogenesis via lipin-1 to breast cancer malignancy

open access: yesNature Communications, 2020
Increased lipogenesis has been linked to an increased cancer risk and poor prognosis; however, the underlying mechanisms remain obscure. Here we show that phosphatidic acid phosphatase (PAP) lipin-1, which generates diglyceride precursors necessary for ...
Lintao Song   +17 more
semanticscholar   +1 more source

Roles of the RET Proto-oncogene in Cancer and Development

open access: yesJMA Journal, 2020
RET (REarranged during Transfection)is activated by DNA rearrangement of the 3′ fragment of the receptor tyrosine kinase gene, namely, RET proto-oncogene, with the 5′ fragment of various genes with putative dimerization domains, such as a coiled coil ...
Masahide Takahashi, K. Kawai, N. Asai
semanticscholar   +1 more source

Comprehensive single cell transcriptome lineages of a proto-vertebrate

open access: yesNature, 2019
Ascidian embryos highlight the importance of cell lineages in animal development. As simple proto-vertebrates, they also provide insights into the evolutionary origins of cell types such as cranial placodes and neural crest cells. Here we have determined
Chen Cao   +9 more
semanticscholar   +1 more source

Central Asian moisture modulated by proto-Paratethys Sea incursions since the early Eocene

open access: yesEarth and Planetary Science Letters, 2019
The establishment and evolution of the Asian monsoons and arid interior have been linked to uplift of the Tibetan Plateau, retreat of the inland proto-Paratethys Sea and global cooling during the Cenozoic.
N. Meijer   +10 more
semanticscholar   +1 more source

Paleogene evolution and demise of the proto‐Paratethys Sea in Central Asia (Tarim and Tajik basins): Role of intensified tectonic activity at ca. 41 Ma

open access: yesBasin Research, 2019
The proto‐Paratethys Sea covered a vast area extending from the Mediterranean Tethys to the Tarim Basin in western China during Cretaceous and early Paleogene.
M. Kaya   +14 more
semanticscholar   +1 more source

Condensation of Rubisco into a proto-pyrenoid in higher plant chloroplasts

open access: yesNature Communications, 2020
Photosynthetic CO2 fixation in plants is limited by the inefficiency of the CO2-assimilating enzyme Rubisco. In most eukaryotic algae, Rubisco aggregates within a microcompartment known as the pyrenoid, in association with a CO2-concentrating mechanism ...
Nicky Atkinson   +3 more
semanticscholar   +1 more source

A systematic study of proto-neutron star convection in three-dimensional core-collapse supernova simulations [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2019
This paper presents the first systematic study of proto-neutron star (PNS) convection in three dimensions (3D) based on our latest numerical fornax models of core-collapse supernova (CCSN).
H. Nagakura   +3 more
semanticscholar   +1 more source

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