Results 31 to 40 of about 3,418 (261)
Lower Carboniferous plants from Abu-Thora Formation in Southwest Sinai [PDF]
Taeckholmia, 2001 Impressions of stem fragments of Lepidodendrales are described from Lower Carboniferous strata fromAbu-Thora Formation in Southwest Sinai.
Ali El-Kelani, Mona Darwish
doaj +1 more source
The Lower Carboniferous corals of Australia
The Proceedings of the Royal Society of Queensland, 1934 (Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire +2 more sources
FEBS Letters, EarlyView.Embryo‐like structures (stembryos) are an innovative tool, but they are hindered by experimental variability and limited developmental potential. DNA methylation is crucial for mammalian development, but its status in stembryo models is poorly characterized.
Sara Canil +4 more
wiley +1 more source
Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis
FEBS Letters, EarlyView.Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee +7 more
wiley +1 more source
Геодинамика и тектонофизикаThis study presents the results of an integrated petrographic and U-Pb geochronological investigation of Lower to Middle Carboniferous sandstones from the Volga-Ural petroleum province.
K. R. Minnebaev +4 more
doaj +1 more source
FEBS Letters, EarlyView.Inositol pyrophosphates are energy‐rich signaling molecules that perform critical functions in cells. Three different families of phosphatases hydrolyze the β phosphate of the inositol pyrophosphate molecules: two have narrow specificities and one is promiscuous.
Ronda J. Rolfes
wiley +1 more source
Reconstructing enzyme evolution by protein engineering
FEBS Letters, EarlyView.Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler +2 more
wiley +1 more source
Paleomagnetism of Phanerozoic Geological Complexes in Tuva
Вестник Камчатской региональной ассоциации "Учебно-научный центр". Серия: Науки о Земле, 2020 The authors have investigated palaeomagnetically the Ordovician, Upper Devonian and Lower Carboniferous strata in Tuva. In the rocks, postfolding secondary and prefolding magnetization components were isolated.
Коваленко Д.В. +3 more
doaj +1 more source
Epigenetic reprogramming of lineage switching in cancer
FEBS Letters, EarlyView.Cancer cells rarely commit to a single identity. Epigenetic mechanisms and tumor microenvironment cues push epithelial cells toward flexible, hybrid states that can shift into mesenchymal, neuroendocrine, or stem‐like fates, driving metastasis, drug resistance, and tumor heterogeneity. Targeting the epigenetic regulators behind these transitions, using
Ezgi Boyvatlı +4 more
wiley +1 more source
Natural Gas Industry B, 2021 Mixed deposition is a sedimentary phenomenon of special significance to the tectonic movement, material supply, sea level change, and paleoclimate of the sedimentary environment.
Guangquan Zhang, Lidong Mi
doaj +1 more source