Results 51 to 60 of about 9,409 (173)
Recruitment of two dyneins to an mRNA-dependent Bicaudal D transport complex
We investigated the role of full-length Drosophila Bicaudal D (BicD) binding partners in dynein-dynactin activation for mRNA transport on microtubules. Full-length BicD robustly activated dynein-dynactin motility only when both the mRNA binding protein ...
Thomas E Sladewski +7 more
doaj +1 more source
Hyperactive KIF5A in Neurodegeneration
ABSTRACT The highly polarised morphology of neurons and the sheer length of their axons make transport of cargoes throughout the cell a formidable task. Decades of evidence obtained from genetic studies on patients and animal models highlight deficits in axonal transport as a recurrent cause, or early contributing factor, in a plethora of ...
David Villarroel‐Campos +1 more
wiley +1 more source
Dynein/Dynactin modulates neurite formation.
A: Representative microscopic images of P19 cells acquired in the primary screen, transfected with neurogenic transcription factor NeuroD2 and 4pmol of siRNA oligonucleotide mixtures targeting Dynein/Dynactin subunits.
Leif Dehmelt (7132) +2 more
core +1 more source
RNF13 regulates the endolysosomal pathway through interaction with the small GTPase Arl8B
The E3 ubiquitin ligase RNF13 functions as a regulatory scaffold, organizing Arl8B‐dependent complexes and tuning downstream signaling that controls endolysosomal organization and trafficking. In this model, wild‐type RNF13 associates with Arl8B on endolysosomes, whereas Arl8B (E22D/F55A) or RNF13 (L244A) variants weaken complex assembly, potentially ...
Audrey M. Sénécal +4 more
wiley +1 more source
ATL2 Recruits TRAK1 to Promote Mitochondrial Transport at ER–Mitochondria Contact Sites
ABSTRACT Mitochondrial transport and distribution are crucial for cellular homeostasis, yet whether and how they are regulated by endoplasmic reticulum (ER)–mitochondria contact sites remains unclear. Here, we demonstrate that the ER protein atlastin‐2 (ATL2) orchestrates mitochondrial transport and distribution by promoting assembly of the transport ...
Yiru Cheng +9 more
wiley +1 more source
The Arp1/11 minifilament of dynactin primes the endosomal Arp2/3 complex
International audienceDendritic actin networks develop from a first actin filament through branching by the Arp2/3 complex. At the surface of endosomes, the WASH complex activates the Arp2/3 complex and interacts with the capping protein for unclear ...
Aumont-Nicaise, Magali +31 more
core +1 more source
Sailing to and Docking at the Immune Synapse: Role of Tubulin Dynamics and Molecular Motors
The different cytoskeleton systems and their connecting molecular motors move vesicles and intracellular organelles to shape cells. Polarized cells with specialized functions display an exquisite spatio-temporal regulation of both cytoskeletal and ...
Noa Beatriz Martín-Cófreces +3 more
doaj +1 more source
RUFY3 links Arl8b and JIP4-Dynein complex to regulate lysosome size and positioning
Lysosomes move along microtubule tracks, and Arl8b is known to stimulate their anterograde transport. Here, the authors identified RUFY3 as an Arl8b effector that interacts with dynein-dynactin to drive retrograde transport and perinuclear lysosome ...
Gaurav Kumar +7 more
doaj +1 more source
ABSTRACT The aim of this study was to characterize the proteome of sperm and seminal plasma (SP) from rams with high semen freezability (HF) and low semen freezability (LF). Eleven ejaculates were collected from 12 rams, at 3‐day intervals, and cryopreserved (132 semen samples).
Wallisson Bruno de Morais Pacheco +14 more
wiley +1 more source
RUFY3 and RUFY4 are ARL8 effectors that promote coupling of endolysosomes to dynein-dynactin
Organellar transport is carefully regulated, and endolysosome localized ARL8 is important for kinesin recruitment and anterograde movement. Here, the authors show that RUFY3 and RUFY4 promote retrograde transport of endolysosomes by mediating interaction
Tal Keren-Kaplan +6 more
doaj +1 more source

