Results 51 to 60 of about 155,151 (257)

Mitochondrial Bol1 and Bol3 function as assembly factors for specific iron-sulfur proteins

open access: yeseLife, 2016
Assembly of mitochondrial iron-sulfur (Fe/S) proteins is a key process of cells, and defects cause many rare diseases. In the first phase of this pathway, ten Fe/S cluster (ISC) assembly components synthesize and insert [2Fe-2S] clusters.
Marta A Uzarska   +9 more
doaj   +1 more source

STEM CELL GROWTH AND DIFFERENTIATION IN HYDRA ATTENUATA [PDF]

open access: yes, 1979
The differentiation of nerve cells and nematocytes from interstitial stem cells in Hydra has been investigated under conditions of changing stem cell density.
David, Charles N., Sproull, Frederick
core   +1 more source

Pulse-Bandwidth Dependence of Coherent Phase Control of Resonance-Mediated (2+1) Three-Photon Absorption

open access: yes, 2007
We study in detail coherent phase control of femtosecond resonance-mediated (2+1) three-photon absorption and its dependence on the spectral bandwidth of the excitation pulse. The regime is the weak-field regime of third perturbative order.
Andrey Gandman   +6 more
core   +1 more source

Chemical pathways and kinetic rates of the N(4S) + N2 → N3 solid phase reaction: could the N3 radical be a temperature sensor of nitrogen ices in dense molecular clouds? [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2017
Even though the N 3 radical has not yet been detected in the interstellar medium, its formation still remains a challenge. For a long time, bombardments of N 2 ices by energetic particles were the only way to from the azide radical as it was thought that ultraviolet (UV) photons were not strong enough to fragment the molecular nitrogen into N atoms ...
Mencos, Alejandro   +2 more
openaire   +2 more sources

Structural biology of ferritin nanocages

open access: yesFEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Proteomics Reveal the Effect of Exogenous Electrons on Electroactive Escherichia coli

open access: yesFrontiers in Microbiology, 2022
Microbial cells utilizing electricity to produce high-value fuels and chemicals are the foundation of the biocathodic bioelectrochemical system. However, molecular mechanisms of electron transfer and utilization have not been elucidated.
Jiao Feng   +5 more
doaj   +1 more source

COMMITMENT DURING NEMATOCYTE DIFFERENTIATION IN HYDRA [PDF]

open access: yes, 1981
Nematocytes in Hydra differentiate from interstitial stem cells. Desmonemes differentiate mainly in the distal half of the body column while stenoteles differentiate predominantly in the proximal half.
David, Charles N., Fujisawa, Toshitaka
core  

Sertraline Treatment Can Mimic Niemann‐Pick Type C Biomarker Profile: A Diagnostic Pitfall

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Oxysterols (cholestane‐3β,5α,6β‐triol and 7‐ketocholesterol) and N‐palmitoyl‐O‐phosphocholineserine (PPCS) are sensitive biomarkers for Niemann‐Pick disease type C (NPC) screening. However, false‐positive results occur, with a biomarker profile suggestive of NPC despite the absence of pathogenic variants in genes involved in NPC or ...
Maria Makrygianni   +19 more
wiley   +1 more source

Proteomics and Metabolomics Analyses to Elucidate the Desulfurization Pathway of Chelatococcus sp. [PDF]

open access: yesPLoS ONE, 2016
Desulfurization of dibenzothiophene (DBT) and alkylated DBT derivatives present in transport fuel through specific cleavage of carbon-sulfur (C-S) bonds by a newly isolated bacterium Chelatococcus sp. is reported for the first time.
Naba K Bordoloi   +3 more
doaj   +1 more source

Multi-Channel Selective Femtosecond Coherent Control Based on Symmetry Properties

open access: yes, 2007
We present and implement a new scheme for extended multi-channel selective femtosecond coherent control based on symmetry properties of the excitation channels.
Andrey Gandman   +4 more
core   +1 more source

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