Results 81 to 90 of about 125,163 (295)

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

FEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

A scenario of unhealthy life cycle: The role of circadian rhythms in health

Aging Medicine
Circadian rhythms are oscillations in physiology and behavior caused by the circadian regulator. Cryptochromes, Periods, and Bmal1 are circadian clock genes that have been linked to aging and cancer.
Manasa Chandramouli, Vrushabendra Basavanna, Srikantamurthy Ningaiah   +2 more
doaj   +1 more source

Repressor dimerization in the zebrafish somitogenesis clock. [PDF]

PLoS Computational Biology, 2007
The oscillations of the somitogenesis clock are linked to the fundamental process of vertebrate embryo segmentation, yet little is known about their generation.
Olivier Cinquin
doaj   +1 more source

Splice variants of DOMINO control Drosophila circadian behavior and pacemaker neuron maintenance. [PDF]

, 2019
Circadian clocks control daily rhythms in behavior and physiology. In Drosophila, the small ventral lateral neurons (sLNvs) expressing PIGMENT DISPERSING FACTOR (PDF) are the master pacemaker neurons generating locomotor rhythms.
Cai, Yao, Chiu, Joanna C, Lam, Vu H, Liu, Zhenxing, Mcintire, Pearson, Niu, Ye, Tabuloc, Christine A, Xue, Yongbo, Zhang, Yong   +8 more
core   +1 more source

Mapping the evolution of mitochondrial complex I through structural variation

FEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin, Tingting Chen, James A. Letts   +2 more
wiley   +1 more source

Age-dependent motor dysfunction due to neuron-specific disruption of stress-activated protein kinase MKK7. [PDF]

, 2017
c-Jun N-terminal kinase (JNK) is a member of the mitogen-activated protein kinase family and controls various physiological processes including apoptosis. A specific upstream activator of JNKs is the mitogen-activated protein kinase kinase 7 (MKK7).
Deki-Arima, Norie, Fujimori-Tonou, Noriko, Hirayama, Jun, Iwatsuki, Mamiko, Kaneko, Asahito, Kawasaki, Hiroshi, Marth, Jamey D, Matsuoka, Masato, Miyamura, Norio, Nishina, Hiroshi, Okamoto-Uchida, Yoshimi, Penninger, Josef M, Shibata, Shigenobu, Yamanaka, Koji, Yamanashi, Yuji, Yamasaki, Tokiwa   +15 more
core   +2 more sources

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

FEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi, Pilar Samperio Ventayol, Natalie Burkard, Nicolas Schlegel, Carmen Aguilar, Sina Bartfeld   +5 more
wiley   +1 more source

Cross-scale analysis of temperature compensation in the cyanobacterial circadian clock system

Communications Physics, 2022
The mechanism by which circadian clock proteins compensate for changes in temperature to maintain regular operation remains unclear. Here, temperature compensation from the reaction to cell level is explained by large-scale motions inside the clock ...
Yoshihiko Furuike, Dongyan Ouyang, Taiki Tominaga, Tatsuhito Matsuo, Atsushi Mukaiyama, Yukinobu Kawakita, Satoru Fujiwara, Shuji Akiyama   +7 more
doaj   +1 more source

A bioinformatic analysis identifies circadian expression of splicing factors and time-dependent alternative splicing events in the HD-MY-Z cell line [PDF]

, 2019
The circadian clock regulates key cellular processes and its dysregulation is associated to several pathologies including cancer. Although the transcriptional regulation of gene expression by the clock machinery is well described, the role of the clock ...
Abreu, Mónica, Astaburuaga, Rosario, Basti, Alireza, Genov, Nikolai, Relógio, Angela   +4 more
core   +1 more source

Organoids in pediatric cancer research

FEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source