Results 91 to 100 of about 127,418 (322)

Plasmodium falciparum gametogenesis essential protein 1 (GEP1) is a transmission‐blocking target

FEBS Letters, EarlyView.
This study shows Plasmodium falciparum GEP1 is vital for activating sexual stages of malarial parasites even independently of a mosquito factor. Knockout parasites completely fail gamete formation even when a phosphodiesterase inhibitor is added. Two single‐nucleotide polymorphisms (V241L and S263P) are found in 12%–20% of field samples.
Frederik Huppertz, Milagros Siebeck Caturelli, Lina S. Lehmann, Florian Kurth, Alexander G. Maier, Kai Matuschewski   +5 more
wiley   +1 more source

Circadian oscillator proteins across the kingdoms of life: structural aspects

BMC Biology, 2019
Circadian oscillators are networks of biochemical feedback loops that generate 24-hour rhythms in organisms from bacteria to animals. These periodic rhythms result from a complex interplay among clock components that are specific to the organism, but ...
Reena Saini, Mariusz Jaskolski, Seth J. Davis   +2 more
doaj   +1 more source

4‐nitrobenzoate inhibits 4‐hydroxybenzoate polyprenyltransferase in malaria parasites and enhances atovaquone efficacy

FEBS Letters, EarlyView.
Atovaquone is an antimalarial requiring potentiation for sufficient efficacy. We pursued strategies to enhance its activity, showing that 4‐nitrobenzoate inhibits 4‐hydroxybenzoate polyprenyltransferase, decreasing ubiquinone biosynthesis. Since atovaquone competes with ubiquinol in mitochondria, 4‐nitrobenzoate facilitates its action, potentiating ...
Ignasi Bofill Verdaguer, Matheus Felipe Santos, Maurício Mazzine Filho, Gabriela Oliveira Castro, Agustín Hernández, Manoel Aparecido Peres, Alejandro Miguel Katzin, Marcell Crispim   +7 more
wiley   +1 more source

Real-Time In Vitro Fluorescence Anisotropy of the Cyanobacterial Circadian Clock

Methods and Protocols, 2019
Uniquely, the circadian clock of cyanobacteria can be reconstructed outside the complex milieu of live cells, greatly simplifying the investigation of a functioning biological chronometer. The core oscillator component is composed of only three proteins,
Joel Heisler, Archana Chavan, Yong-Gang Chang, Andy LiWang   +3 more
doaj   +1 more source

New insights into the mechanisms of phytochrome-cryptochrome coaction. [PDF]

, 2018
Contents Summary 547 I. Introduction 547 II. Phytochromes mediate light-induced transcription of BICs to inactivate cryptochromes 548 III. PPKs phosphorylate light-signaling proteins and histones to affect plant development 548 IV.
Ahmad, Bourbousse, Bourbousse, Casas-Mollano, Cashmore, Devlin, Guo, Hoecker, Huang, Hughes, Huq, Ichikawa, Jang, Leivar, Lian, Liu, Liu, Liu, Lu, Ma, Martinez-Garcia, Mas, Mohr, Ni, Ni, Ni, Nusinow, Pedmale, Quail, Rosenfeldt, Saijo, Sang, Sellaro, Shalitin, Sheerin, Su, Su, Tessadori, Tessadori, Wang, Wang, Wang, Wang, Wang, Weidler, Yang, Zheng, Zuo   +47 more
core   +1 more source

Intricate Protein-Protein Interactions in the Cyanobacterial Circadian Clock [PDF]

Journal of Biological Chemistry, 2014
The cyanobacterial circadian clock consists of a post-translational oscillator (PTO) and a PTO-dependent transcription-translation feedback loop (TTFL). The PTO can be reconstituted in vitro with the KaiA, KaiB, and KaiC proteins, enabling detailed biochemical and biophysical investigations.
openaire   +2 more sources

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

Converting genetic network oscillations into somite spatial pattern

, 2007
In most vertebrate species, the body axis is generated by the formation of repeated transient structures called somites. This spatial periodicity in somitogenesis has been related to the temporally sustained oscillations in certain mRNAs and their ...
A. C. Oates, A. Sawada, B. Alberts, C. D. Stern, C. Freitas, C. M. Arizmendi, D. R. N. Primmett, D. R. N. Primmett, F. Giudicelli, F. Giudicelli, H. G. E. Hentschel, H. Meinhardt, K. I. Mazzitello, L. Glass, M. H. Glickman, M. K. Henry, O. Cinquin, O. Pourquié, S. A. Holley, U. Alon   +19 more
core   +1 more source

Contribution of time of day and the circadian clock to the heat stress responsive transcriptome in Arabidopsis. [PDF]

, 2019
In Arabidopsis, a large subset of heat responsive genes exhibits diurnal or circadian oscillations. However, to what extent the dimension of time and/or the circadian clock contribute to heat stress responses remains largely unknown.
Blair, Emily J, Bonnot, Titouan, Hay, Erika, Hummel, Maureen, Marzolino, Jill M, Nagel, Dawn H, Quijada, Ivan A   +6 more
core   +2 more sources

Photosynthesis under far‐red light—evolutionary adaptations and bioengineering of light‐harvesting complexes

FEBS Letters, EarlyView.
Phototrophs evolved light‐harvesting systems adapted for efficient photon capture in habitats enriched in far‐red radiation. A subset of eukaryotic pigment‐binding proteins can absorb far‐red photons via low‐energy chlorophyll states known as red forms.
Antonello Amelii, Edoardo Andrea Cutolo, Daniele Montepietra, Claudia Battarra, Roberto Caferri, Stefano Capaldi, Zeno Guardini, Luca Dall'Osto, Roberto Bassi   +8 more
wiley   +1 more source