Results 101 to 110 of about 1,233,859 (314)

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

FEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa, Shinya Sugimoto, Toshiro Sato   +2 more
wiley   +1 more source

Characterization of a Novel Promoter Region for the Enteropathogenic Escherichia coli Type III Secretion System Chaperone Gene cesT

, 2011
Enteropathogenic Escherichia coli (EPEC) is an enteric pathogen that causes potentially fatal infantile diarrhea. A type III secretion system is employed by EPEC to inject bacterial effector proteins directly into host intestinal epithelial cells.
Brouwers, Erin
core  

Validation of methylation differences and identification of a 13-promoter-associated CGI panel that distinguish tumors with high and low level promoter CGI methylation.

, 2017
Technical validation for 11 of the 76 tumors initially analyzed using MethylCap-seq was undertaken using the Infinium beadchip. (A) Methylation patterns for CGI-H (N = 6) and CGI-L tumors (N = 5) for the 16 promoter-associated CGI signature candidates ...
Joanna Groden (90660), Michael P. Trimarchi (3826255), Pearlly Yan (65347), Ralf Bundschuh (181191), Paul J. Goodfellow (181230)   +4 more
core   +1 more source

A Conserved GA Element in TATA-Less RNA Polymerase II Promoters [PDF]

, 2011
Initiation of RNA polymerase (Pol) II transcription requires assembly of the pre-initiation complex (PIC) at the promoter. In the classical view, PIC assembly starts with binding of the TATA box-binding protein (TBP) to the TATA box.
Hartmann, H., Kurth, F., Cramer, P., Hartmann, Holger, Hartmann Holger, Martin Dietmar E., Söding Johannes, Seizl, Martin, Kurth Fabian, Martin, D., Martin Seizl, Fabian Kurth, Cramer Patrick, Hoeg Friederike, Söding* Patrick Cramer, Martin, Dietmar E., Hoeg, F., Cramer, Patrick, Patrick Cramer, Soeding, J., Johannes Söding, Holger Hartmann, Hoeg, Frederike, Kurth, Fabian, Söding, J., Seizl, M., Seizl Martin, Söding, Johannes, Dietmar E Martin, Friederike Hoeg, Martin, D. E., Hoeg, Friederike, Dietmar E. Martin   +32 more
core   +2 more sources

Enhancing Stability of Cu/ZnO Catalysts in the CO₂ Hydrogenation to Methanol by the Addition of MoO₃ and ReO₃ Promoters

Nanomaterials
The catalytic hydrogenation of CO2 to methanol represents a promising route for carbon recycling and hydrogen storage. However, the stability of current catalysts remains one of the main technological challenges.
Jose Soriano Rodríguez, José Manuel López Nieto, Enrique Rodriguez-Castellón, Antonia Infantes, Daviel Gómez, Patricia Concepción   +5 more
doaj   +1 more source

Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis

FEBS Letters, EarlyView.
Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee, Junho Jeong, Chae Yeong Lee, Hyunjoon Cho, Man Hwan Oh, Je Chul Lee, Jee‐Young Lee, Yangmee Kim   +7 more
wiley   +1 more source

Design and analysis strategies for robust microbiome ageing research

FEBS Letters, EarlyView.
The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik, İsmail Güderer, Yi Wang, Tayyaba Alvi, Prasoon Pandey, Handan Melike Dönertaş   +5 more
wiley   +1 more source

ABL kinase‐dependent phosphorylation of SH proteins promotes their direct interaction with CRK family SH2 domains

FEBS Letters, EarlyView.
CT10 regulator of kinase (CRK) and CRK‐Like (CRKL) are signaling adaptors driving cell adhesion, motility, differentiation, and proliferation. SH2‐domain containing (SH) proteins are enriched in YXXP motifs which when phosphorylated create preferred binding sites for CRK family SH2 domains.
Phoebe M. Cousens, Brendan W. Chandler, Anna M. Schmoker, Jaye L. Weinert, Charlotte A. Kearns, Warren T. Yacawych, Amila Šemić, Alicia M. Ebert, Bryan A. Ballif   +8 more
wiley   +1 more source

Transcriptional regulation of the human ALDH1A1 promoter by the oncogenic homeoprotein TLX1/HOX11 [PDF]

, 2009
The homeoprotein TLX1, which is essential to spleen organogenesis and oncogenic when aberrantly expressed in immature T cells, functions as a bifunctional transcriptional regulator, being capable of activation or repression depending on cell type and/or ...
Heidari, M., Taplin, R., Wayne Kenneth Greene, Kees, U.R., Ross Taplin, Kim Rice, Greene, W.K., Ursula Kees, Wayne Greene, Rice, K.L., Mansour Heidari   +10 more
core   +1 more source

Reconstructing enzyme evolution by protein engineering

FEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler, Markus R. Busch, Reinhard Sterner   +2 more
wiley   +1 more source