Results 181 to 190 of about 42,178 (200)

VPR, A ousada

2021
O início dos anos 60 na América Latina foi marcado, no aspecto político, pela Revolução Cubana, a qual ocorreu em plena Guerra Fria. Os acontecimentos em Cuba abalaram profundamente a estabilidade política do continente, além de terem afetado a política mundial, principalmente no momento da instalação dos mísseis nucleares em Cuba, correndo o risco do ...
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HIV-1 Vpr: Regulator of Viral Survival

Current HIV Research, 2009
The HIV-1 Vpr protein is a viral accessory protein that plays a number of important roles during HIV infection. The activities of Vpr are numerous and include the induction of apoptosis, the modulation of cell cycle arrest, as well as control of viral transcription.
Thieu K. P., Morrow M. P., Shedlock D. J., Schoenly K. A., Mallilankaraman K., Choo A. Y., Fagone P., Weiner D. B., Muthumani K.   +8 more
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VPRS based decision tree classifier

2011 International Conference of Soft Computing and Pattern Recognition (SoCPaR), 2011
This paper analyzes the existing decision tree classification algorithms and finds that these algorithms based on variable precision rough set (VPRS) have better classification accuracies and can tolerate the noise data. But when constructing decision tree based on variable precision rough set, these algorithms have the following shortcomings: the ...
Yi Weiguo, Lu Mingyu, Duan Jing
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HIV-1 Vpr and Anti-Inflammatory Activity

DNA and Cell Biology, 2004
New and effective approaches for inflammatory diseases based on novel mechanisms of action are needed. One potential source of anti-inflammatory drugs exists among viruses. Viruses have evolved to infect, replicate within, and kill human cells through diverse mechanisms.
Karuppiah, Muthumani, Brijal M, Desai, Daniel S, Hwang, Andrew Y, Choo, Dominick J, Laddy, Khanh P, Thieu, Rushil G, Rao, David B, Weiner   +7 more
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The vpr Regulatory Gene of HIV

1995
Virus replication is the result of a series of two-way communications between the viral parasite and its host. Since viruses are essentially inert objects in the absence of a host cell, all aspects of their natural history can be defined in terms of these interactions.
D N, Levy, Y, Refaeli, D B, Weiner
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Mitochondrial membrane permeabilization by HIV-1 Vpr

Mitochondrion, 2004
The mitochondrion is a privileged target for apoptosis-modulatory proteins of viral origin. Thus, viral protein R (Vpr) can target mitochondria and induce apoptosis via a specific interaction with the permeability transition pore complex (PTPC). Vpr cooperates with the adenine nucleotide translocator (ANT) to form large conductance channels and to ...
Aurélien, Deniaud, Catherine, Brenner, Guido, Kroemer   +2 more
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Upregulation of survivin by HIV-1 Vpr

Apoptosis, 2003
The human survivin gene belongs to the family of inhibitor of apoptosis proteins (IAP) and is involved in apoptosis inhibition and regulation of cell division. The survivin gene is the only member of the IAP family whose expression is known to be regulated through the cell cycle.
Y, Zhu, M, Roshal, F, Li, J, Blackett, V, Planelles   +4 more
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Vpr and Its Interactions with Cellular Proteins

2009
Like most viral regulatory proteins, HIV-1 Vpr and homologous proteins from primate lentiviruses are small and multifunctional. They are associated with a plethora of effects and functions, including induction of cell cycle arrest in the G(2) phase, induction of apoptosis, transactivation, enhancement of the fidelity of reverse transcription, and ...
Vicente, Planelles, Serge, Benichou
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Systematical evaluation of VPR- Identification and Enhancement (VPR-IE) approach for different precipitation types

SPIE Proceedings, 2014
Over complex terrains, ground radars usually rely on scans at higher elevation angles to observe precipitating systems. The surface quantitative precipitation estimation (QPE) might have considerable errors if veridical structure of precipitation is not considered because radar reflectivity varies with height due to evaporation at low levels as well as
Yixin Wen, Yang Hong, Pierre Kirstetter, Qing Cao, J. J. Gourley, Jian Zhang, Xianwu Xue   +6 more
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The HIV-1 Vif Protein Mediates Degradation of Vpr and Reduces Vpr-Induced Cell Cycle Arrest

DNA and Cell Biology, 2008
Prior work has implicated viral protein R (Vpr) in the arrest of human immunodeficiency virus type 1 (HIV-1)-infected cells in the G2 phase of the cell cycle, associated with increased viral replication and host cell apoptosis. We and others have recently shown that virion infectivity factor (Vif ) also plays a role in the G2 arrest of HIV-1-infected ...
Jiangfang, Wang, Jason M, Shackelford, Nithianandan, Selliah, Debra K, Shivers, Eduardo, O'Neill, J Victor, Garcia, Karuppiah, Muthumani, David, Weiner, Xiao-Fang, Yu, Dana, Gabuzda, Terri H, Finkel   +10 more
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