Results 51 to 60 of about 21,304 (244)

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

Multiperiodic RR Lyrae stars in the field of NGC 6362

open access: yesEPJ Web of Conferences, 2017
We present frequency analysis of RR Lyrae stars of globular cluster NGC6362.
Moskalik Paweł   +5 more
doaj   +1 more source

Extragalactic globular clusters. II - The M31 globular cluster system

open access: yesThe Astrophysical Journal, 1991
Metallicities for 150 globular clusters associated with M31 are derived using the strengths of six absorption features in the cluster-integrated spectra. The properties of the M31 cluster system are very similar to those of the Galactic system. No dependence of metallicity on cluster luminosity is found.
Huchra, J. P.   +2 more
openaire   +2 more sources

Bulge Globular Clusters [PDF]

open access: yesSymposium - International Astronomical Union, 2002
The properties of the globular clusters located within 20° × 20° of the Galactic Center are discussed. In particular their spatial distribution, metallicities and ages are presented and discussed in the context of different scenarios of bulge formation.
Barbuy, B., Ortolani, S., Bica, E.
openaire   +2 more sources

Transferrin receptor 1‐mediated iron uptake supports thermogenic activation in human cervical‐derived adipocytes

open access: yesFEBS Letters, EarlyView.
In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai   +9 more
wiley   +1 more source

RR Lyrae Stars Belonging to the Candidate Globular Cluster Patchick 99

open access: yesThe Astrophysical Journal Letters
Patchick 99 is a candidate globular cluster located in the direction of the Galactic bulge, with a proper motion almost identical to the field and extreme field star contamination. A recent analysis suggests it is a low-luminosity globular cluster with a
Evan Butler   +18 more
doaj   +1 more source

Tau acetylation at K331 has limited impact on tau pathology in vivo

open access: yesFEBS Letters, EarlyView.
We mapped tau post‐translational modifications in humanized MAPT knock‐in mice and in amyloid‐bearing double knock‐in mice. Acetylation within the repeat domain, particularly around K331, showed modest increases under amyloid pathology. To test functional relevance, we generated MAPTK331Q knock‐in mice.
Shoko Hashimoto   +3 more
wiley   +1 more source

Intergalactic Globular Clusters [PDF]

open access: yesHighlights of Astronomy, 2005
AbstractWe confirm and extend our previous detection of a population of intergalactic globular clusters in Abell 1185, and report the first discovery of an intergalactic globular cluster in the nearby Virgo cluster of galaxies. The numbers, colors and luminosities of these objects can place constraints on their origin, which in turn may yield new ...
West, Michael J.   +7 more
openaire   +2 more sources

Globular Cluster Counts around 700 Nearby Galaxies

open access: yesThe Astrophysical Journal
Empirically, the total number (or total mass) of globular clusters (GCs) bound in a single galactic system correlates with the virial mass of the system. The form of this relation and its intrinsic scatter are potentially valuable constraints on theories
Minh Ngoc Le, Andrew P. Cooper
doaj   +1 more source

The mysterious globular cluster population of MATLAS-2019

open access: yesAstronomy & Astrophysics
MATLAS-2019 (also known as NGC5846-UDG1) has attracted significant attention due to the ongoing debate surrounding its globular cluster (GC) population, with several studies addressing the issue, yet reaching little consensus.
Guerra Arencibia Sergio   +3 more
doaj   +1 more source

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