Results 101 to 110 of about 382,695 (354)

Diffusive hidden Markov model characterization of DNA looping dynamics in tethered particle experiments [PDF]

, 2007
In many biochemical processes, proteins bound to DNA at distant sites are brought into close proximity by loops in the underlying DNA. For example, the function of some gene-regulatory proteins depends on such DNA looping interactions.
Andrec M, Bevington P R, Colquhoun D, Cox D R, Gelles J, John F Beausang, Philip C Nelson, Press W H, Qian H, Qin F, Qin F, Smith D A, Wong O K Guthold M Erie D A Gelles J, Yin H, Zocchi G, Zurla C   +15 more
core   +3 more sources

Integrative miRNOMe profiling reveals the miR‐195‐5p–CHEK1 axis and its impact on luminal breast cancer outcomes

Molecular Oncology, EarlyView.
In luminal (ER+) breast carcinoma (BC), miRNA profiling identified miR‐195‐5p as a key regulator of proliferation that targets CHEK1, CDC25A, and CCNE1. High CHEK1 expression correlates with worse relapse‐free survival after chemotherapy, especially in patients with luminal A subtype.
Veronika Boušková, Marie Ehrlichová, Alžběta Spálenková, Ivona Krus, Simona Šůsová, Viktor Hlaváč, Vlasta Němcová, Renata Koževnikovová, Markéta Trnková, David Vrána, Jiří Gatěk, Kateřina Kopečková, Marcela Mrhalová, Soňa Měšťáková, Pavel Souček   +14 more
wiley   +1 more source

Subspecialization of R2R3-MYB repressors for anthocyanin and proanthocyanidin regulation in forage legumes

Frontiers in Plant Science, 2015
The synthesis of anthocyanin pigments and proanthocyanidins (condensed tannins) is regulated by MYB-bHLH-WDR (MBW) transcription factor complexes in all angiosperms studied to date. Tr-MYB133 and Tr-MYB134 were isolated from T.
Nick W Albert, Nick W Albert
doaj   +1 more source

Thecl repressor of bacteriophage P1 operator-repressor interaction of wild-type and mutant repressor proteins

Nucleic Acids Research, 1989
The c1 repressor gene of bacteriophage P1 and the temperature-sensitive mutants P1c1.100 and P1c1.162 was cloned into an expression vector and the repressor proteins were overproduced. A rapid purification procedure was required for the isolation of the thermolabile repressor proteins.
Hans Dieter Riedel, Heinz Suhuster, Barbara R. Baumstark, Makoto Kimura, Jochen Hemrich   +4 more
openaire   +3 more sources

Adenosine‐to‐inosine editing of miR‐200b‐3p is associated with the progression of high‐grade serous ovarian cancer

Molecular Oncology, EarlyView.
A‐to‐I editing of miRNAs, particularly miR‐200b‐3p, contributes to HGSOC progression by enhancing cancer cell proliferation, migration and 3D growth. The edited form is linked to poorer patient survival and the identification of novel molecular targets.
Magdalena Niemira, Anna Skwarska, Karolina Chwialkowska, Agnieszka Ostrowska, Gabriela Sokolowska, Anna Zeller, Anna Erol, Andrzej Eljaszewicz, Bartosz Hanczaruk, Anna Michalska‐Falkowska, Agnieszka Tarasik, Joanna Reszec‐Gielazyn, Pawel Knapp, Marcin Moniuszko, Adam Kretowski   +14 more
wiley   +1 more source

Silencing cryptic specialized metabolism in Streptomyces by the nucleoid-associated protein Lsr2

eLife, 2019
Lsr2 is a nucleoid-associated protein conserved throughout the actinobacteria, including the antibiotic-producing Streptomyces. Streptomyces species encode paralogous Lsr2 proteins (Lsr2 and Lsr2-like, or LsrL), and we show here that of the two, Lsr2 has
Emma J Gehrke, Xiafei Zhang, Sheila M Pimentel-Elardo, Andrew R Johnson, Christiaan A Rees, Stephanie E Jones, Hindra, Sebastian S Gehrke, Sonya Turvey, Suzanne Boursalie, Jane E Hill, Erin E Carlson, Justin R Nodwell, Marie A Elliot   +13 more
doaj   +1 more source

Distance matters: the impact of gene proximity in bacterial gene regulation

, 2013
Following recent discoveries of colocalization of downstream-regulating genes in living cells, the impact of the spatial distance between such genes on the kinetics of gene product formation is increasingly recognized.
Metzler, Ralf, Pulkkinen, Otto
core   +1 more source

Emerging role of ARHGAP29 in melanoma cell phenotype switching

Molecular Oncology, EarlyView.
This study gives first insights into the role of ARHGAP29 in malignant melanoma. ARHGAP29 was revealed to be connected to tumor cell plasticity, promoting a mesenchymal‐like, invasive phenotype and driving tumor progression. Further, it modulates cell spreading by influencing RhoA/ROCK signaling and affects SMAD2 activity. Rho GTPase‐activating protein
Beatrice Charlotte Tröster, Melanie Kappelmann‐Fenzl, Anja Katrin Bosserhoff, Nicole Rachinger   +3 more
wiley   +1 more source

Modeling of negative autoregulated genetic networks in single cells

, 2005
We discuss recent developments in the modeling of negative autoregulated genetic networks. In particular, we consider the temporal evolution of the population of mRNA and proteins in simple networks using rate equations. In the limit of low copy numbers,
Becskei, Biham, Biham, Elowitz, Elowitz, Elowitz, Gibson, Gibson, Gillespie, Gould, Green, Hartquist, Hollenbach, Hollenbach, Kalir, Kepler, Ko, Ko, Lipshtat, McAdams, McAdams, Milo, Milo, Morton-Firth, Murray, Nicolis, Paulsson, Paulsson, Paulsson, Paulsson, Rosenfeld, Smith, Swain, Szallasi, Yagil, Yagil   +35 more
core   +2 more sources

A bioinformatics screen identifies TCF19 as an aggressiveness‐sustaining gene in prostate cancer

Molecular Oncology, EarlyView.
Gene expression meta‐analysis in multiple prostate cancer patient cohorts identifies Transcription factor 19 (TCF19) as an aggressiveness‐sustaining gene with prognostic potential. TCF19 is a gene repressed by androgen signaling that sustains core cancer‐related processes such as vascular permeability or tumor growth and metastasis.
Amaia Ercilla, Jana R. Crespo, Saioa Garcia‐Longarte, Marta Fidalgo, Sara del Palacio, Natalia Martin‐Martin, Onintza Carlevaris, Ianire Astobiza, Sonia Fernández‐Ruiz, Marc Guiu, Laura Bárcena, Isabel Mendizabal, Ana M. Aransay, Mariona Graupera, Roger R. Gomis, Arkaitz Carracedo   +15 more
wiley   +1 more source