Results 51 to 60 of about 8,130,594 (350)

Crosstalk between the ribosome quality control‐associated E3 ubiquitin ligases LTN1 and RNF10

FEBS Letters, EarlyView.
Loss of the E3 ligase LTN1, the ubiquitin‐like modifier UFM1, or the deubiquitinating enzyme UFSP2 disrupts endoplasmic reticulum–ribosome quality control (ER‐RQC), a pathway that removes stalled ribosomes and faulty proteins. This disruption may trigger a compensatory response to ER‐RQC defects, including increased expression of the E3 ligase RNF10 ...
Yuxi Huang, Satoshi Hashimoto, Sota Ito, Chisato Kikuguchi, Miho Hoshi, Kiyoshi Yamaguchi, Yoichi Furukawa, Toru Suzuki, Toshifumi Inada   +8 more
wiley   +1 more source

Exploring Life Detection on Mars: Understanding Challenges in DNA Amplification in Martian Regolith Analogue After Fe Ion Irradiation

Life
The search for life beyond Earth currently hinges on the detection of biosignatures that are indicative of current or past life, with terrestrial life being the sole known example.
Alessia Cassaro, Claudia Pacelli, Silvano Onofri   +2 more
doaj   +1 more source

c-Myc-Induced Extrachromosomal Elements Carry Active Chromatin

Neoplasia: An International Journal for Oncology Research, 2003
Murine Pre-13 lymphocytes with experimentally activated MycER show both chromosomal and extrachromosomal gene amplification. In this report, we have elucidated the size, structure, functional components of c-Myc-induced extrachromosomal elements (EEs ...
Greg Smith, Cheryl Taylor-Kashton, Len Dushnicky, Stephen Symons, Jim Wright, Sabine Mai   +5 more
doaj   +1 more source

Disordered but rhythmic—the role of intrinsic protein disorder in eukaryotic circadian timing

FEBS Letters, EarlyView.
Unstructured domains known as intrinsically disordered regions (IDRs) are present in nearly every part of the eukaryotic core circadian oscillator. IDRs enable many diverse inter‐ and intramolecular interactions that support clock function. IDR conformations are highly tunable by post‐translational modifications and environmental conditions, which ...
Emery T. Usher, Jacqueline F. Pelham
wiley   +1 more source

HER2 and TOP2A in high-risk early breast cancer patients treated with adjuvant epirubicin-based dose-dense sequential chemotherapy

Journal of Translational Medicine, 2012
Background HER2 and TOP2A parameters (gene status, mRNA and protein expression) have individually been associated with the outcome of patients treated with anthracyclines.
Fountzilas George, Valavanis Christos, Kotoula Vassiliki, Eleftheraki Anastasia G, Kalogeras Konstantine T, Tzaida Olympia, Batistatou Anna, Kronenwett Ralf, Wirtz Ralph M, Bobos Mattheos, Timotheadou Eleni, Soupos Nikolaos, Pentheroudakis George, Gogas Helen, Vlachodimitropoulos Dimitrios, Polychronidou Genovefa, Aravantinos Gerasimos, Koutras Angelos, Christodoulou Christos, Pectasides Dimitrios, Arapantoni Petroula   +20 more
doaj   +1 more source

The role of histone modifications in transcription regulation upon DNA damage

FEBS Letters, EarlyView.
This review discusses the critical role of histone modifications in regulating gene expression during the DNA damage response (DDR). By modulating chromatin structure and recruiting repair factors, these post‐translational modifications fine‐tune transcriptional programmes to maintain genomic stability.
Angelina Job Kolady, Siyao Wang
wiley   +1 more source

Polysomy and amplification of chromosome 7 defined for EGFR gene in squamous cell carcinoma of the lung together with exons 19 and 21 wild type Carcinoma epidermóide do pulmão: Polissomia e amplificação do cromossoma 7 e do gene EGRF com forma wild type nos exões 19 e 21

Revista Portuguesa de Pneumologia, 2010
Purpose: The epidermal growth factor receptor (EGFR) is overexpressed in the majority of nonsmall-cell lung cancers (NSCLC) and is a major target specific EGFR tyrosine kinase inhibitors (TKIs) developed and used for the treatment of advanced NSCLC.
Patrícia Couceiro, Vítor Sousa, Ana Alarcão, Maria Silva, Lina Carvalho   +4 more
doaj  

Extensive Gene Amplification as a Mechanism for Piperacillin-Tazobactam Resistance in Escherichia coli

mBio, 2018
Although the TEM-1 β-lactamase (BlaTEM-1) hydrolyzes penicillins and narrow-spectrum cephalosporins, organisms expressing this enzyme are typically susceptible to β-lactam/β-lactamase inhibitor combinations such as piperacillin-tazobactam (TZP). However,
Lisa M. Schechter, David P. Creely, Cherilyn D. Garner, Dee Shortridge, Hoan Nguyen, Lei Chen, Blake M. Hanson, Erica Sodergren, George M. Weinstock, W. Michael Dunne, Alex van Belkum, Shana R. Leopold   +11 more
doaj   +1 more source

Substrate specificity of Burkholderia pseudomallei multidrug transporters is influenced by the hydrophilic patch in the substrate‐binding pocket

FEBS Letters, EarlyView.
Multidrug transporters BpeB and BpeF from the Gram‐negative pathogen Burkholderia pseudomallei have a hydrophilic patch in their substrate‐binding pocket. Drug susceptibility tests and growth curve analyses using an Escherichia coli recombinant expression system revealed that the hydrophilic patches of BpeB and BpeF are involved in the substrate ...
Ui Okada, Satoshi Murakami
wiley   +1 more source

Assessment of Cyclin E Gene Amplification as a Biomarker in Isfahan Province Breast Cancer Patients [PDF]

Journal of Advanced Biomedical Sciences, 2020
Background & Objective: Breast cancer is the most common cancer among women worldwide. Cell-cycle is controlled by regulatory proteins called cyclins and Cyclin-Dependent Kinases. Aberrant activity of cyclins plays an important role in cancer development
Goharik Torosian, Mansour Salehi, Massoud Houshmand   +2 more
doaj