Results 71 to 80 of about 1,562,972 (341)

Transcription factor mutations in myelodysplastic/myeloproliferative neoplasms

Haematologica, 2010
Background Aberrant activation of tyrosine kinases, caused by either mutation or gene fusion, is of major importance for the development of many hematologic malignancies, particularly myeloproliferative neoplasms.
Thomas Ernst, Andrew Chase, Katerina Zoi, Katherine Waghorn, Claire Hidalgo-Curtis, Joannah Score, Amy Jones, Francis Grand, Andreas Reiter, Andreas Hochhaus, Nicholas C.P. Cross   +10 more
doaj   +1 more source

Genome-wide discovery of modulators of transcriptional interactions in human B lymphocytes [PDF]

RECOMB'06 Proceedings, LNCS 3909, Springer, 2006, 2005
Transcriptional interactions in a cell are modulated by a variety of mechanisms that prevent their representation as pure pairwise interactions between a transcription factor and its target(s). These include, among others, transcription factor activation by phosphorylation and acetylation, formation of active complexes with one or more co-factors, and ...
arxiv   +1 more source

Structural and mechanistic basis for the regulation of the chloroplast signal recognition particle by (p)ppGpp

FEBS Letters, EarlyView.
LHCPs are transported to the thylakoid membrane via the (cp)SRP pathway. This process involves a transit complex of (cp)SRP43, (cp)SRP54 and LHCP, which interacts with (cp)FtsY and Alb3 at the membrane. GTP hydrolysis by (cp)SRP54 and (cp)FtsY triggers complex dissociation.
Victor Zegarra, Paul Weiland, Pauline Anka Plitzko, Julia Thiery, Laura Czech, Felix Willmund, Patricia Bedrunka, Gert Bange   +7 more
wiley   +1 more source

Patterns of subnet usage reveal distinct scales of regulation in the transcriptional regulatory network of Escherichia coli [PDF]

, 2010
The set of regulatory interactions between genes, mediated by transcription factors, forms a species' transcriptional regulatory network (TRN). By comparing this network with measured gene expression data one can identify functional properties of the TRN and gain general insight into transcriptional control.
arxiv   +1 more source

The lower bound on the precision of transcriptional regulation [PDF]

Phys. Rev. E 90 (2014) 032708, 2014
The diffusive arrival of transcription factors at the promoter sites on the DNA sets a lower bound on how accurately a cell can regulate its protein levels. Using results from the literature on diffusion-influenced reactions, we derive an analytical expression for the lower bound on the precision of transcriptional regulation.
arxiv   +1 more source

The multiple roles of the NlpC_P60 peptidase family in mycobacteria – an underexplored target for antimicrobial drug discovery

FEBS Letters, EarlyView.
The NlpC_P60 superfamily of peptidases is recognised by its key role in bacterial cell wall homeostasis. Recently, studies have also described the involvement of NlpC_P60‐like enzymes in bacterial competitive mechanisms and pathogenesis across several lineages.
Catharina dos Santos Silva, Marcio Vinicius Bertacine Dias   +1 more
wiley   +1 more source

TRIM16 transcription factor in prostate cancer

Бюллетень сибирской медицины, 2018
The aim of this investigation was to reveal the expression TRIM16, ERα, ERβ and AR in prostate cancer tissues compared to benign hyperplasia and clinical and morphological parameters.Materials and methods.
L. V. Spirina, A. К. Gorbunov, I. V. Kondakova, E. М. Slonimskaya, Е. A. Usynin, N. V. Tarasenko   +5 more
doaj   +1 more source

Stochastic analysis of bistability in coherent mixed feedback loops combining transcriptional and post-transcriptional regulations [PDF]

, 2014
Mixed feedback loops combining transcriptional and post-transcriptional regulations are common in cellular regulatory networks. They consist of two genes, encoding a transcription factor and a small non-coding RNA (sRNA), which mutually regulate each other's expression.
arxiv   +1 more source

Unraveling Mycobacterium tuberculosis acid resistance and pH homeostasis mechanisms

FEBS Letters, EarlyView.
Mycobacterium tuberculosis exhibits a remarkable resilience to acid stress. In this Review, we discuss some of the molecular mechanisms and metabolic pathways used by the tubercle bacilli to adapt and resist host‐mediated acid stress. Mycobacterium tuberculosis (Mtb) is a successful pathogen that has developed a variety of strategies to survive and ...
Janïs Laudouze, Stéphane Canaan, Alexandre Gouzy, Pierre Santucci   +3 more
wiley   +1 more source

Reliable scaling of Position Weight Matrices for binding strength comparisons between transcription factors [PDF]

arXiv, 2015
Scoring DNA sequences against Position Weight Matrices (PWMs) is a widely adopted method to identify putative transcription factor binding sites. While common bioinformatics tools produce scores that can reflect the binding strength between a specific transcription factor and the DNA, these scores are not directly comparable between different ...
arxiv