Results 51 to 60 of about 2,152,940 (333)

Impact of Nuclear Export Pathway on Cytoplasmic HIV-1 RNA Transport Mechanism and Distribution

mBio, 2020
HIV-1 full-length RNA (referred to as HIV-1 RNA here) serves as the viral genome in virions and as a template for Gag/Gag-Pol translation. We previously showed that HIV-1 RNA, which is exported via the CRM1 pathway, travels in the cytoplasm mainly ...
Jianbo Chen, Chijioke Umunnakwe, David Q. Sun, Olga A. Nikolaitchik, Vinay K. Pathak, Ben Berkhout, Atze T. Das, Wei-Shau Hu   +7 more
doaj   +1 more source

Activation of mammalian Chk1 during DNA replication arrest: a role for Chk1 in the intra-S phase checkpoint monitoring replication origin firing [PDF]

, 2001
Checkpoints maintain order and fidelity in the cell cycle by blocking late-occurring events when earlier events are improperly executed. Here we describe evidence for the participation of Chk1 in an intra-S phase checkpoint in mammalian cells.
Feijoo, Carmen, Gilbert, David M., Hall-Jackson, Clare, Jenkins, David, Leitch, Jane, Smythe, Carl, Wu, Rong   +6 more
core   +2 more sources

Replication in Economics [PDF]

SSRN Electronic Journal, 2007
This examination of the role and potential for replication in economics points out the paucity of both pure replication - checking on others' published papers using their data - and scientific replication - using data representing different populations in one's own work or in a Comment.
Daniel S. Hamermesh, Daniel S. Hamermesh, Daniel S. Hamermesh   +2 more
openaire   +3 more sources

Population and species neighbor identity impact trait–trait relationships and plant performance

Population Ecology, EarlyView.
We evaluated how populations and species identity influence plant performance and trait outcomes in mixtures, and assessed trait variation among populations of two forb species native to the western United States (Dieteria canescens and Heterotheca villosa) following three interaction treatments (single‐population monoculture, two‐population mixture ...
Alicia J. Foxx, Florian Fort, Andrea T. Kramer   +2 more
wiley   +1 more source

Reconstitution of human DNA licensing and the structural and functional analysis of key intermediates

Nature Communications
Human DNA licensing initiates replication fork assembly and DNA replication. This reaction promotes the loading of the hMCM2-7 complex on DNA, which represents the core of the replicative helicase that unwinds DNA during S-phase.
Jennifer N. Wells, Lucy V. Edwardes, Vera Leber, Shenaz Allyjaun, Matthew Peach, Joshua Tomkins, Antonia Kefala-Stavridi, Sarah V. Faull, Ricardo Aramayo, Carolina M. Pestana, Lepakshi Ranjha, Christian Speck   +11 more
doaj   +1 more source

Effects of chronic browsing on life‐history traits of an irruptive large herbivore population

Population Ecology, EarlyView.
This study aimed to determine the relationship between diet quality, body mass, and size (hind foot length), and female reproduction and sought to identify the mechanism by which high density under severe food limitations is maintained. Our results demonstrated that sika deer introduced to Nakanoshima Island have maintained high densities through high ...
Koichi Kaji, Kazutaka M. Takeshita, Hiroshi Takahashi, Hiromasa Igota, Mayumi Ueno, Yukiko Matsuura, Takashi Ikeda, Ryo Yoshizawa, Hino Takafumi, Tsuyoshi Yoshida   +9 more
wiley   +1 more source

Kinetic Studies on the Interaction of HIV-1 Gag Protein with the HIV-1 RNA Packaging Signal

Viruses
During HIV-1 virus assembly, the genomic RNA (vRNA) is selected for packaging by the viral protein Gag because it contains a specific packaging signal, Psi. While there have been numerous studies of Gag–Psi interactions, there is almost no information on
Constance Rink, Tomas Kroupa, Siddhartha A. K. Datta, Alan Rein   +3 more
doaj   +1 more source

Cdt1 stabilizes an open MCM ring for helicase loading

Nature Communications, 2017
The loading and activation of the Mcm2-7 replicative helicase couples cell cycle progression to DNA replication. Here the authors use X-ray crystallography and single-particle electron microscopy to demonstrate how Ctd1 functions to promote MCM loading ...
Jordi Frigola, Jun He, Kerstin Kinkelin, Valerie E. Pye, Ludovic Renault, Max E. Douglas, Dirk Remus, Peter Cherepanov, Alessandro Costa, John F. X. Diffley   +9 more
doaj   +1 more source

Robust self-replication of combinatorial information via crystal growth and scission [PDF]

, 2012
Understanding how a simple chemical system can accurately replicate combinatorial information, such as a sequence, is an important question for both the study of life in the universe and for the development of evolutionary molecular design techniques ...
B. Yurke, Bullard, Cairns-Smith, Carnall, Collins, Deck, Dutta, E. Winfree, Huppa, Johnston, Knowles, Mao, Orgel, Paul, R. Schulman, Rasmussen, Rothemund, Rothemund, Rubinov, Schrum, Seeman, Smalley, Smith, Viedma, Wang, Wang, Winfree, Wochner   +27 more
core   +3 more sources

Dendritic cells steering antigen and leukocyte traffic in lymph nodes

FEBS Letters, EarlyView.
Dendritic cells are key players in the activation of T cells and their commitment to effector function. In this In a Nutshell Review, we will discuss how dendritic cells guide the trafficking of antigen and leukocytes in the lymph node, thus influencing T‐cell activation processes. Dendritic cells (DCs) play a central role in initiating and shaping the
Enrico Dotta, Agnieszka Katarzyna Maciola, Tania Baccega, Giulia Pasqual   +3 more
wiley   +1 more source