Results 61 to 70 of about 26,711 (229)

Human P450 CYP17A1: Control of Substrate Preference by Asparagine 202 [PDF]

open access: yes, 2018
CYP17A1 is a key steroidogenic enzyme known to conduct several distinct chemical transformations on multiple substrates. In its hydroxylase activity, this enzyme adds a hydroxyl group at the 17α position of both pregnenolone and progesterone at ...
Bangcharoenpaurpong O.   +8 more
core   +2 more sources

Perturbing dynamin reveals potent effects on the Drosophila circadian clock. [PDF]

open access: yesPLoS ONE, 2009
BACKGROUND:Transcriptional feedback loops are central to circadian clock function. However, the role of neural activity and membrane events in molecular rhythms in the fruit fly Drosophila is unclear.
Valerie L Kilman   +4 more
doaj   +1 more source

A functional study of AUXILIN-LIKE1 and 2, two putative clathrin uncoating factors in Arabidopsis [PDF]

open access: yes, 2018
Clathrin-mediated endocytosis (CME) is a cellular trafficking process in which cargoes and lipids are internalized from the plasma membrane into vesicles coated with clathrin and adaptor proteins. CME is essential for many developmental and physiological
Adamowski, Maciek   +5 more
core   +2 more sources

Why enveloped viruses need cores -- the contribution of a nucleocapsid core to viral budding

open access: yes, 2017
During the alphavirus lifecycle, a nucleocapsid core buds through the cell membrane to acquire an outer envelope of lipid membrane and viral glycoproteins. However, the presence of a nucleocapsid core is not required for assembly of infectious particles.
Hagan, Michael F.   +2 more
core   +1 more source

Actin Dynamics Drive Membrane Reorganization and Scission in Clathrin-Independent Endocytosis [PDF]

open access: yesCell, 2010
Nascent transport intermediates detach from donor membranes by scission. This process can take place in the absence of dynamin, notably in clathrin-independent endocytosis, by mechanisms that are yet poorly defined. We show here that in cells scission of Shiga toxin-induced tubular endocytic membrane invaginations is preceded by cholesterol-dependent ...
Römer, Winfried   +10 more
openaire   +3 more sources

Inhomogeneous Canham–Helfrich Abscission in Catenoid Necks under Critical Membrane Mosaicity

open access: yesMembranes, 2023
The mechanical effects of membrane compositional inhomogeneities are analyzed in a process analogous to neck formation in cellular membranes. We cast on the Canham–Helfrich model of fluid membranes with both the spontaneous curvature and the surface ...
José Antonio Santiago, Francisco Monroy
doaj   +1 more source

VCP-dependent muscle degeneration is linked to defects in a dynamic tubular lysosomal network in vivo. [PDF]

open access: yes, 2015
Lysosomes are classically viewed as vesicular structures to which cargos are delivered for degradation. Here, we identify a network of dynamic, tubular lysosomes that extends throughout Drosophila muscle, in vivo. Live imaging reveals that autophagosomes
Davis, Graeme W   +4 more
core   +3 more sources

Insights Into the Antigenic Repertoire of Unclassified Synaptic Antibodies

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective We sought to characterize the sixth most common finding in our neuroimmunological laboratory practice (tissue assay‐observed unclassified neural antibodies [UNAs]), combining protein microarray and phage immunoprecipitation sequencing (PhIP‐Seq). Methods Patient specimens (258; 133 serums; 125 CSF) meeting UNA criteria were profiled;
Michael Gilligan   +22 more
wiley   +1 more source

Eukaryotic-Like Virus Budding in Archaea

open access: yesmBio, 2016
Similar to many eukaryotic viruses (and unlike bacteriophages), viruses infecting archaea are often encased in lipid-containing envelopes. However, the mechanisms of their morphogenesis and egress remain unexplored.
Emmanuelle R. J. Quemin   +5 more
doaj   +1 more source

CRISPR/Cas9‐Assisted Microrobots for Fast and Ultrasensitive “On‐The‐Fly” Next‐Generation DNA Detection

open access: yesAdvanced Functional Materials, EarlyView.
This work presents self‐propelled CRISPR/Cas9‐functionalized Au–MRs for rapid, amplification‐free, “on‐the‐fly” DNA detection. By harnessing motion‐assisted signal recovery, the platform achieved the limit of detection in low fM DNA concentrations, enabling detection across a wide dynamic range within only 5 min, which is significantly faster than any ...
Jyoti   +3 more
wiley   +1 more source

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