Results 71 to 80 of about 5,467,910 (302)

Polymorphisms in Gag spacer peptide 1 confer varying levels of resistance to the HIV-1 maturation inhibitor bevirimat [PDF]

open access: yes, 2010
Background: The maturation inhibitor bevirimat (BVM) potently inhibits human immunodeficiency virus type 1 (HIV-1) replication by blocking capsid-spacer peptide 1 (CA-SP1) cleavage. Recent clinical trials demonstrated that a significant proportion of HIV-
Sakalian Michael   +11 more
core   +1 more source

Septin 9 PB domains coordinate centrosome positioning and microtubule acetylation to control epithelial polarity

open access: yesFEBS Letters, EarlyView.
Septin 9 polybasic domains couple phosphoinositide‐rich membrane binding to centrosome positioning, Golgi organization, and microtubule acetylation to control epithelial polarity. Their loss disrupts this axis, causing centrosome mispositioning, Golgi fragmentation, reduced microtubule acetylation, and polarity inversion via upregulation of the ...
Ting ting Cai   +4 more
wiley   +1 more source

Interference-driven spacer acquisition is dominant over naive and primed adaptation in a native CRISPR–Cas system

open access: yesNature Communications, 2016
CRISPR–Cas systems provide bacteria with adaptive immunity against foreign nucleic acids by acquiring short, invader-derived sequences called spacers. Here, we use high-throughput sequencing to analyse millions of spacer acquisition events in wild-type ...
R. Staals   +5 more
semanticscholar   +1 more source

Effect of ligand and shell densities on surface structure of core-shell nanoparticles self-assembled from function-spacer-lipid constructs [PDF]

open access: yes, 2023
Biomolecular corona is the major obstacle in clinical translation of nanomedicines. To overcome this problem, comprehensive studies of the processes leading to the formation of a biomolecular corona are required. Since such dynamical studies require high
Anton, Zalygin   +8 more
core   +1 more source

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

open access: yesFEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa   +2 more
wiley   +1 more source

Integrase-mediated spacer acquisition during CRISPR–Cas adaptive immunity

open access: yesNature, 2015
Bacteria and archaea insert spacer sequences acquired from foreign DNAs into CRISPR loci to generate immunological memory. The Escherichia coli Cas1–Cas2 complex mediates spacer acquisition in vivo, but the molecular mechanism of this process is unknown.
J. K. Nuñez   +3 more
semanticscholar   +1 more source

Modelling stem cell differentiation related processes—A practical overview for biologists

open access: yesFEBS Letters, EarlyView.
Stem cell differentiation is complex and difficult to control experimentally. This review introduces suitable computational modelling approaches that can support stem cell research, from mechanistic ODE and abstract models to multiscale and deep learning methods.
Ricco Zeegelaar   +4 more
wiley   +1 more source

Controversies in neurosurgery: Irreducible basilar invagination and atlanto-axial dislocation: A trans-oral procedure may be avoided in a majority, but still may be required in some cases

open access: yesIndian Journal of Neurosurgery, 2013
Basilar invagination (BI) and atlanto-axial dislocation (AAD) are mostly irreducible in nature and are quite complex pathologies to manage. Traditionally they required a trans-oral excision of odontoid process followed by a posterior instrumented fusion.
P. Sarat Chandra
doaj   +1 more source

CRISPR-Cas systems optimize their immune response by specifying the site of spacer integration

open access: yesMolecules and Cells, 2016
SUMMARY CRISPR-Cas systems defend prokaryotes against viruses and plasmids. Short DNA segments of the invader, known as spacers, are stored in the CRISPR array as immunological memories.
Jon McGinn, L. Marraffini
semanticscholar   +1 more source

Design and analysis strategies for robust microbiome ageing research

open access: yesFEBS Letters, EarlyView.
The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik   +5 more
wiley   +1 more source

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