Results 51 to 60 of about 706,415 (288)

Sequence-dependent base pair stepping dynamics in XPD helicase unwinding

eLife, 2013
Helicases couple the chemical energy of ATP hydrolysis to directional translocation along nucleic acids and transient duplex separation. Understanding helicase mechanism requires that the basic physicochemical process of base pair separation be ...
Zhi Qi, Robert A Pugh, Maria Spies, Yann R Chemla   +3 more
doaj   +1 more source

NRASQ61R Expression in Lymphatic Endothelial Cells Causes Enlarged Vessels, Hemorrhagic Chylous Effusions, and High Mortality in a Mouse Model of Kaposiform Lymphangiomatosis

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Kaposiform lymphangiomatosis (KLA) is an aggressive complex lymphatic anomaly. Patients exhibit malformed lymphatic vessels and often develop hemorrhagic effusions and elevated angiopoietin‐2 (Ang‐2) levels. A somatic NRAS p.Q61R (NRASQ61R) mutation has been associated with KLA.
C. Griffin McDaniel, Patricia Pastura, Joshua P. Scallan, Timothy D. Le Cras   +3 more
wiley   +1 more source

Active diffusion of motor particles

, 2005
The movement of motor particles consisting of one or several molecular motors bound to a cargo particle is studied theoretically. The particles move on patterns of immobilized filaments.
Jan Kierfeld, Reinhard Lipowsky, Torsten Kühne   +2 more
core   +1 more source

Pulmonary Dysfunction Is Associated With Sleep Study Abnormalities in Children With Sickle Cell Disease: A Multicenter Study

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction Pulmonary dysfunction and sleep abnormalities are common in children with sickle cell disease (SCD) and are associated with worse clinical outcomes. Whether spirometry abnormalities are associated with polysomnography (PSG) findings remains unclear.
Ammar Saadoon Alishlash, Anis Rabbani Nourani, A. K. M. Fazlur Rahman, Dima Ezmigna, Tarig Ali‐Dinar   +4 more
wiley   +1 more source

Kinetic regulation of kinesin’s two motor domains coordinates its stepping along microtubules

eLife
The two identical motor domains (heads) of dimeric kinesin-1 move in a hand-over-hand process along a microtubule, coordinating their ATPase cycles such that each ATP hydrolysis is tightly coupled to a step and enabling the motor to take many steps ...
Yamato Niitani, Kohei Matsuzaki, Erik Jonsson, Ronald D Vale, Michio Tomishige   +4 more
doaj   +1 more source

Stochastic kinetics of ribosomes: single motor properties and collective behavior [PDF]

, 2009
Synthesis of protein molecules in a cell are carried out by ribosomes. A ribosome can be regarded as a molecular motor which utilizes the input chemical energy to move on a messenger RNA (mRNA) track that also serves as a template for the polymerization ...
A. S. Spirin, Ashok Garai, B. Alberts, B. Schmittmann, Debanjan Chowdhury, Debashish Chowdhury, G. M. Schütz, M. Dixon, N. G. Van Kampen, R. Phillips, S. Redner, T. V. Ramakrishnan   +11 more
core   +2 more sources

The Fate (Outcome) of Clinically Apparent Single Lesion and Oligofocal Nephroblastomatosis Treated According to SIOP/GPOH Protocols for Wilms Tumor

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background The management of clinically apparent single lesions or oligofocal nephroblastomatosis, a facultative precursor of nephroblastoma, remains debated. Methods We retrospectively analyzed 37 patients with clinically apparent single or oligofocal nephroblastomatosis (two to three lesions per kidney) among 2347 patients registered between
Nils Welter, Jens‐Peter Schenk, Jenny Wegert, Manfred Gessler, Leo Kager, Stefan Wagenpfeil, Marina Müller, Jean‐Michel Wolff, Joerg Fuchs, Steven W. Warmann, Clemens‐Magnus Meier, Jochen Hubertus, Christian Rübe, Christian Vokuhl, Patrick Melchior, Lena Tschirner, Norbert Graf, Rhoikos Furtwängler   +17 more
wiley   +1 more source

Examining kinesin processivity within a general gating framework

eLife, 2015
Kinesin-1 is a dimeric motor that transports cargo along microtubules, taking 8.2-nm steps in a hand-over-hand fashion. The ATP hydrolysis cycles of its two heads are maintained out of phase by a series of gating mechanisms, which lead to processive runs
Johan OL Andreasson, Bojan Milic, Geng-Yuan Chen, Nicholas R Guydosh, William O Hancock, Steven M Block   +5 more
doaj   +1 more source

StructureMan: A Structure Manipulation Tool to Study Large Scale Biomolecular Interactions

Frontiers in Molecular Biosciences, 2021
Studying biomolecular interactions is a crucial but challenging task. Due to their large scales, many biomolecular interactions are difficult to be simulated via all atom models.
Yuejiao Xian, Yixin Xie, Sebastian Miki Silva, Chitra B. Karki, Weihong Qiu, Weihong Qiu, Lin Li, Lin Li   +7 more
doaj   +1 more source

Neck linker docking is critical for Kinesin-1 force generation in cells but at a cost to motor speed and processivity

eLife, 2019
Kinesin force generation involves ATP-induced docking of the neck linker (NL) along the motor core. However, the roles of the proposed steps of NL docking, cover-neck bundle (CNB) and asparagine latch (N-latch) formation, during force generation are ...
Breane G Budaitis, Shashank Jariwala, Dana N Reinemann, Kristin I Schimert, Guido Scarabelli, Barry J Grant, David Sept, Matthew J Lang, Kristen J Verhey   +8 more
doaj   +1 more source