Results 71 to 80 of about 4,872,302 (299)
Heredity, 1967 Incompatibility in fungi. A Symposium held at the 10th International Congress of Botany at Edinburgh, August 1964. Edited by Karl Esser and John R. Raper. Springer-Verlag, Berlin, 1965. Pp. viii+124, 8vo. Stiff paper bound. DM.24.
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Ligand‐dependent transcriptional heterogeneity in cell cycle gene expression delays G1/S entry
FEBS Letters, EarlyView.EGF and HRG induce distinct G1/S progression programs in ErbB2‐amplified BT474 breast cancer cells. Despite activating the potent ErbB2–ErbB3 heterodimer, HRG does not accelerate cell‐cycle entry. Instead, EGF promotes earlier restriction‐point passage via ERK–FOS signaling, whereas HRG activates the AKT–MYC axis, driving transcriptional heterogeneity ...
Ririn Rahmala Febri +5 more
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The Biological Bulletin, 1953 1. Conjugating strains representing three different mating types of Tetrahymena pyriformis have been isolated from fresh water ponds in the Woods Hole, Massachusetts, area and established in axenic cultures.2. These strains have the same amino acid and vitamin requirements as T. pyriformis E.3. The cytology of conjugation is described.4.
Elliott, Alfred M. (Alfred Marlyn) +1 more
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Structural and biochemical analysis of a B12 superbinder
FEBS Letters, EarlyView.BtuG proteins are vitamin B12 scavengers in Bacteroides thetaiotaomicron, a dominant human gut bacterium. We present crystal structures of three BtuG homologs bound to cobalamin and its precursor cobinamide, revealing picomolar binding affinities, among the highest known for any natural protein.
Jose M. Martinez Felices +3 more
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Role of the Heme Activator Protein Complex in the Sexual Development of Cryptococcus neoformans
mSphere, 2022 The CCAAT-binding heme activator protein (HAP) complex, comprising the DNA-binding heterotrimeric complex Hap2/3/5 and transcriptional activation subunit HapX, is a key regulator of iron homeostasis, mitochondrial functions, and pathogenicity in ...
Jin-Young Kim, Yong-Sun Bahn
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Mating Types in Stylonychia putrina.
Experimental Biology and Medicine, 1952 Although conjugation in ciliated Protozoa was long extensively studied, especially by Maupas(1), mating types were first discovered by Sonneborn(2). It is now known that mating types exist in Paramecium aurelia(2,3) P. bursaria(4-6), P. caudatum(7-11), P. multimicronucleatum(11), P. trichium(12), P. calkinsi(12-14), and Euplotes patella(15). In several
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Mating-type loci of Ustilago esculenta are essential for mating and development
Fungal Genetics and Biology, 2019 Ustilago esculenta is closely related to the smut fungus Ustilago maydis and, in an endophytic-like life in the plant Zizania latifolia, only infects host stems and causes swollen stems to form edible galls called Jiaobai in China. In order to study its different modes of invasion and sites of symptom development from other smut fungi at the molecular ...
Yafen, Zhang +9 more
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The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation
FEBS Letters, EarlyView.Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge +6 more
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Female mating decisions in the Trinidadian guppy, Poecilia reticulata [PDF]
, 2009 Contrary to traditional belief, the decisions that females make before, during and after mating shape its outcome and ultimately fitness. The aim of this thesis was to examine how females modify and adjust their mating decisions in line with social and ...
Barbosa, Miguel
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G3: Genes, Genomes, Genetics, 2019 Recombination suppression on sex chromosomes often extends in a stepwise manner, generating evolutionary strata of differentiation between sex chromosomes.
Anna Liza Bazzicalupo +3 more
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