Results 91 to 100 of about 2,323,002 (379)

A histidine‐rich extension of the mitochondrial F0 subunit ATP6 from the ice worm Mesenchytraeus solifugus increases ATP synthase activity in bacteria

open access: yesFEBS Letters, EarlyView.
The glacier ice worm Mesenchytraeus solifugus survives year‐round at 0 °C. Its ATP6 subunit, which forms a regulatory component of the proton pore in mitochondrial ATP synthase, has a carboxy‐terminal extension not found in any other organism examined to date. Here, we show that fusion of this extension to the homologous AtpB protein in E. coli results
Truman Dunkley   +2 more
wiley   +1 more source

The interplay between chromatin and transcription factor networks during B cell development: who pulls the trigger first?

open access: yesFrontiers in Immunology, 2014
All mature blood cells derive from hematopoietic stem cells (HSCs) through gradual restriction of their cell fate potential and acquisition of specialized functions.
Mohamed-Amin eChoukrallah   +1 more
doaj   +1 more source

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

open access: yes, 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

Effect of natural genetic variation on enhancer selection and function. [PDF]

open access: yes, 2013
The mechanisms by which genetic variation affects transcription regulation and phenotypes at the nucleotide level are incompletely understood. Here we use natural genetic variation as an in vivo mutagenesis screen to assess the genome-wide effects of ...
Allison, KA   +6 more
core  

LARP7 suppresses P-TEFb activity to inhibit breast cancer progression and metastasis. [PDF]

open access: yes, 2014
Transcriptional elongation by RNA polymerase (Pol) II is essential for gene expression during cell growth and differentiation. The positive transcription elongation factor b (P-TEFb) stimulates transcriptional elongation by phosphorylating Pol II and ...
Ji, Xiaodan   +3 more
core   +1 more source

Characteristics of the Kelch domain containing (KLHDC) subfamily and relationships with diseases

open access: yesFEBS Letters, EarlyView.
The Kelch protein superfamily includes 63 members, with the KLHDC subfamily having 10 proteins. While their functions are not fully understood, recent advances in KLHDC2's structure and role in protein degradation have highlighted its potential for drug development, especially in PROTAC therapies.
Courtney Pilcher   +6 more
wiley   +1 more source

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

open access: yesarXiv, 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  

The T-cell oncogene Tal2 is a Target of PU.1 and upregulated during osteoclastogenesis [PDF]

open access: yes, 2013
Transcription factors play a crucial role in regulating differentiation processes during human life and are important in disease. The basic helix-loop-helix transcription factors Tal1 and Lyl1 play a major role in the regulation of gene expression in the
Courtial, Nadine   +5 more
core   +2 more sources

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

open access: yesFEBS 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   +7 more
wiley   +1 more source

Transcription factors and asthma [PDF]

open access: yesEuropean Respiratory Journal, 1998
Asthma is characterized by the expression of multiple genes for inflammatory proteins, such as cytokines, enzymes, receptors and adhesion molecules. This is orchestrated by transcription factors, which are proteins that bind to the promoter regions of these genes and may be activated by inflammatory stimuli, such as cytokines.
Ian M. Adcock, Peter J. Barnes
openaire   +3 more sources

Home - About - Disclaimer - Privacy