Results 51 to 60 of about 861,603 (331)

Making tau amyloid models in vitro: a crucial and underestimated challenge

FEBS Letters, EarlyView.
This review highlights the challenges of producing in vitro amyloid assemblies of the tau protein. We review how accurately the existing protocols mimic tau deposits found in the brain of patients affected with tauopathies. We discuss the important properties that should be considered when forming amyloids and the benchmarks that should be used to ...
Julien Broc, Clara Piersson, Yann Fichou
wiley   +1 more source

Elastic dosage compensation by X-chromosome upregulation

Nature Communications, 2022
The concerted dynamics of X-chromosome upregulation and X-chromosome inactivation, which collectively balance X-chromosome expression, are not well understood.
Antonio Lentini, Huaitao Cheng, J. C. Noble, Natali Papanicolaou, Christos Coucoravas, Nathanael Andrews, Qiaolin Deng, Martin Enge, Björn Reinius   +8 more
doaj   +1 more source

P‐glycoprotein modulates the fluidity gradient of the plasma membrane of multidrug resistant CHO cells

FEBS Letters, EarlyView.
To explore the impact of the overexpression of the multidrug‐transporter P‐glycoprotein (ABCB1) on membrane fluidity, we compared the transversal gradient of mobility and microviscosity in plasma membranes of drug‐sensitive Chinese hamster ovary cells (AuxB1) and their multidrug‐resistant derivatives (B30) using the fluorescent n‐(9‐anthroyloxy) fatty ...
Roger Busche, John R. Riordan, Burkhard Tümmler   +2 more
wiley   +1 more source

The probability to initiate X chromosome inactivation is determined by the X to autosomal ratio and X chromosome specific allelic properties.

PLoS ONE, 2009
BackgroundIn female mammalian cells, random X chromosome inactivation (XCI) equalizes the dosage of X-encoded gene products to that in male cells. XCI is a stochastic process, in which each X chromosome has a probability to be inactivated. To obtain more
Kim Monkhorst, Bas de Hoon, Iris Jonkers, Eskeatnaf Mulugeta Achame, Wouter Monkhorst, Jos Hoogerbrugge, Eveline Rentmeester, Hans V Westerhoff, Frank Grosveld, J Anton Grootegoed, Joost Gribnau   +10 more
doaj   +1 more source

Why does the X chromosome lag behind autosomes in GWAS findings?

PLoS Genetics, 2023
The X-chromosome is among the largest human chromosomes. It differs from autosomes by a number of important features including hemizygosity in males, an almost complete inactivation of one copy in females, and unique patterns of recombination.
Ivan P Gorlov, Christopher I Amos
doaj   +1 more source

The Origin of a New Sex Chromosome by Introgression between Two Stickleback Fishes. [PDF]

, 2019
Introgression is increasingly recognized as a source of genetic diversity that fuels adaptation. Its role in the evolution of sex chromosomes, however, is not well known. Here, we confirm the hypothesis that the Y chromosome in the ninespine stickleback,
Abbott, Alexander, Anders, Bachtrog, Bachtrog, Bachtrog, Bronson, Browning, Carling, Carneiro, Charlesworth, Charlesworth, Choi, Cook, Corcoran, Coyne, Coyne, Danecek, DePristo, Edwards, Glazer, Green, Groves Dixon, Hagen, Irwin, Ishikawa, JanouŠek, Jay, Jombart, Jombart, Jun Kitano, Krueger, Langmead, Li, Li, Lindholm, Love, Luo, Mark Kirkpatrick, Martin, Martin, Martin, Meguro, Melissa Wilson Sayres, Muirhead, Natri, Neafsey, Nei, O’Neill, Payseur, Petit, Presgraves, Quinlan, Ravinet, Ross, Saetre, Sankararaman, Schwander, Sciuchetti, Smit, Stamatakis, Storchová, Stölting, Sun, Takahashi, Takahashi, Toews, Tosi, Toups, Tuttle, van Doorn, Vicoso, von Hippel, Wang, White, Yang, Yoshida, Yoshida, Úbeda   +78 more
core   +1 more source

Evolutionary interplay between viruses and R‐loops

FEBS Letters, EarlyView.
Viruses interact with specialized nucleic acid structures called R‐loops to influence host transcription, epigenetic states, latency, and immune evasion. This Perspective examines the roles of R‐loops in viral replication, integration, and silencing, and how viruses co‐opt or avoid these structures.
Zsolt Karányi, Zita Képes, Zoltán Szabó, Eszter Csoma, Lóránt Székvölgyi   +4 more
wiley   +1 more source

Mosaicism for r(X) and der(X)del(X)(p11.23)dup(X)(p11.21p11.22) provides insight into the possible mechanism of rearrangement

Molecular Cytogenetics, 2008
We report a patient with a unique and complex cytogenetic abnormality involving mosaicism for a small ring X and deleted Xp derivative chromosome with tandem duplication at the break point. The patient presented with failure to thrive, muscular hypotonia,
Fang Ping, Brown Chester W, Yatsenko Svetlana A, Peacock Sandra, Ou Zhishuo, Cooper M Lance, Shchelochkov Oleg A, Stankiewicz Pawel, Cheung Sau   +8 more
doaj   +1 more source

An additional X chromosome

South African Medical Journal, 2014
A 35-year-old man presented with symmetrical inflammatory polyarthritis of the small and large joints and associated early-morning stiffness. He was assessed as having features in keeping with Klinefelter’s syndrome. It is evident from the literature that there is a relationship between Klinefelter’s syndrome and developing rheumatic conditions.
openaire   +5 more sources

Intron‐oriented HTLV‐1 integration in an adult T‐cell leukemia/lymphoma cell line sustains expression of intact ift81 mRNA

FEBS Letters, EarlyView.
In the adult T‐cell leukemia/lymphoma (ATL) cell line ED, the human T‐cell leukemia virus type 1 (HTLV‐1) provirus was integrated into the intron of the ift81 gene in the antisense orientation. Despite this integration, both the intact ift81 and the viral oncogene hbz were simultaneously expressed, likely due to the functional insufficiency of viral ...
Mayuko Yagi, Yuka Hirosawa, Yusaku Sagisaka, Minami Hama, Satoshi Takeda, Jun A. Komano   +5 more
wiley   +1 more source