Results 41 to 50 of about 1,351,344 (318)
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Marat U. Akhmet, Mehmet Onur Fen
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Chk1 inhibits replication factory activation but allows dormant origin firing in existing factories [PDF]
Replication origins are licensed by loading MCM2-7 hexamers before entry into S phase. However, only similar to 10% of licensed origins are normally used in S phase, with the others remaining dormant.
Blow, J. Julian; id_orcid +4 more
core +1 more source
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 +2 more
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Attenuation of reverse transcriptase facilitates SAMHD1 restriction of HIV-1 in cycling cells
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 +8 more
doaj +1 more source
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 +3 more
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ABSTRACT Background Adolescents with haematological malignancies face significant emotional and relational challenges, often accompanied by difficulties in communicating their needs within the healthcare context. To address these issues, a narrative‐based psycho‐educational intervention based on the creation and prescription of Ironic Medications was ...
Marta Stoppa +7 more
wiley +1 more source
The DNA helicase Pfh1 promotes fork merging at replication termination sites to ensure genome stability [PDF]
Bidirectionally moving DNA replication forks merge at termination sites composed of accidental or programmed DNA-protein barriers. If merging fails, then regions of unreplicated DNA can result in the breakage of DNA during mitosis, which in turn can give
Steinacher, R. +14 more
core +1 more source
MCM2-7 ring closure involves the Mcm5 C-terminus and triggers Mcm4 ATP hydrolysis
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 +11 more
doaj +1 more source
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 +3 more
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The replication of DNA is the process by means of which genetic information is passed from one generation to the next in all living organisms. It is widely believed that a similar process must have become important early in the development of life on the Earth, either before or at the same time as the evolution of protein synthesis.
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