Results 41 to 50 of about 2,152,940 (333)

Does the Cytoplasmic Tail Matter? Mechanism of Viral Envelope Glycoprotein Targeting by Membrane-Associated-RING-CH (MARCH) Proteins

Proceedings, 2020
The MARCH family of RING-finger E3 ubiquitin ligases comprise 11 members that have been reported to play a variety of roles in the downregulation of cell-surface proteins involved in adaptive immunity.
Cheng man Lun, Abdul A. Waheed, Eric O. Freed   +2 more
doaj   +1 more source

Attenuation of reverse transcriptase facilitates SAMHD1 restriction of HIV-1 in cycling cells

Retrovirology, 2023
Background SAMHD1 is a deoxynucleotide triphosphohydrolase that restricts replication of HIV-1 in differentiated leucocytes. HIV-1 is not restricted in cycling cells and it has been proposed that this is due to phosphorylation of SAMHD1 at T592 in these ...
Ming-Han C. Tsai, Sarah J. Caswell, Elizabeth R. Morris, Melanie C. Mann, Simon Pennell, Geoff Kelly, Harriet C. T. Groom, Ian A. Taylor, Kate N. Bishop   +8 more
doaj   +1 more source

A study on the correlation of nucleotide skews and the positioning of the origin of replication: different modes of replication in bacterial species [PDF]

, 2005
Deviations from Chargaff's 2nd parity rule, according to which A∼T and G∼C in single stranded DNA, have been associated with replication as well as with transcription in prokaryotes. Based on observations regarding mainly the transcription-replication co-
Almirantis, Yannis, Nikolaou, Christoforos   +1 more
core   +2 more sources

Robust Replication Control Is Generated by Temporal Gaps between Licensing and Firing Phases and Depends on Degradation of Firing Factor Sld2

Cell Reports, 2016
Temporal separation of DNA replication initiation into licensing and firing phases ensures the precise duplication of the genome during each cell cycle.
Karl-Uwe Reusswig, Fabian Zimmermann, Lorenzo Galanti, Boris Pfander   +3 more
doaj   +1 more source

Dna2 Helicase/Nuclease Causes Replicative Fork Stalling and Double-strand Breaks in the Ribosomal DNA of Saccharomyces cerevisiae [PDF]

, 2003
We have proposed that faulty processing of arrested replication forks leads to increases in recombination and chromosome instability in Saccharomyces cerevisiae and contributes to the shortened lifespan of dna2 mutants. Now we use the ribosomal DNA locus,
Budd, Martin, Campbell, Judith L., Mays Hoopes, Laura L., Weitao, Tao   +3 more
core   +1 more source

HIV-1 Capsid Rapidly Induces Long-Lived CPSF6 Puncta in Non-Dividing Cells, but Similar Puncta Already Exist in Uninfected T-Cells

Viruses
The HIV-1 capsid (CA) protein forms the outer shell of the viral core that is released into the cytoplasm upon infection. CA binds various cellular proteins, including CPSF6, that direct HIV-1 integration into speckle-associated domains in host chromatin.
Anabel Guedán, Megan Burley, Eve R. Caroe, Kate N. Bishop   +3 more
doaj   +1 more source

The human papillomavirus 16 E2 protein is stabilised in S phase [PDF]

, 2009
The human papillomavirus 16 E2 protein regulates transcription from, and replication of, the viral genome and is also required for segregation of the viral genome via interaction with mitotic bodies.
Dornan, E.S., Graham, S.V., Johansson, C., Morgan, I.M.   +3 more
core   +1 more source

DNA replication stress restricts ribosomal DNA copy number [PDF]

, 2017
Ribosomal RNAs (rRNAs) in budding yeast are encoded by ~100–200 repeats of a 9.1kb sequence arranged in tandem on chromosome XII, the ribosomal DNA (rDNA) locus.
Bradford, William D., Cady, Gillian, Freeland, Amy, Gerton, Jennifer L., Pruitt, Steven C., Salim, Devika, Wang, Jianmin   +6 more
core   +3 more sources

Evaluating the origin and spread of spotted lanternfly (Lycorma delicatula) in Japan

Population Ecology, Volume 67, Issue 2, Page 162-179, April 2025.
The invasive spotted lanternfly (Lycorma delicatula) is native to China and is a serious economic pest in the Republic of Korea and the United States, though it is not considered a pest in Japan. We established a distribution map of L. delicatula in Japan through a comprehensive review of published literature and citizen science reports and analyzed ...
Matthew T. Kamiyama, Michihiko Takahashi, Hannah J. Broadley, Francesc Gómez‐Marco, Mark S. Hoddle, Kenji Matsuura   +5 more
wiley   +1 more source

MCM2-7 ring closure involves the Mcm5 C-terminus and triggers Mcm4 ATP hydrolysis

Nature Communications
The eukaryotic helicase MCM2-7, is loaded by ORC, Cdc6 and Cdt1 as a double-hexamer onto replication origins. The insertion of DNA into the helicase leads to partial MCM2-7 ring closure, while ATP hydrolysis is essential for consecutive steps in pre ...
Sarah V. Faull, Marta Barbon, Audrey Mossler, Zuanning Yuan, Lin Bai, L. Maximilian Reuter, Alberto Riera, Christian Winkler, Indiana Magdalou, Matthew Peach, Huilin Li, Christian Speck   +11 more
doaj   +1 more source