Results 81 to 90 of about 416,313 (253)

Time after time – circadian clocks through the lens of oscillator theory

FEBS Letters, EarlyView.
Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo, Carolin Ector, Hanspeter Herzel   +2 more
wiley   +1 more source

Back to the Middle Ages: Entomological and Botanical Elements Reveal New Aspects of the Burial of Saint Davino of Armenia. [PDF]

Insects, 2022
Loni A, Vanin S, Fornaciari A, Tomei PE, Giuffra V, Benelli G.   +5 more
europepmc   +1 more source

The newfound relationship between extrachromosomal DNAs and excised signal circles

FEBS Letters, EarlyView.
Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley   +1 more source

The Medical Historical Cultural Foundations of Western Nasal Surgery from Ancient Greece to the Middle Ages. [PDF]

Aesthetic Plast Surg, 2023
Marinozzi S, Carbonaro R, Messineo D, Raposio E, Codolini L, Sanese G, Cervelli V.   +6 more
europepmc   +1 more source

Conserved structural motifs in PAS, LOV, and CRY proteins regulate circadian rhythms and are therapeutic targets

FEBS Letters, EarlyView.
Cryptochrome and PAS/LOV proteins play intricate roles in circadian clocks where they act as both sensors and mediators of protein–protein interactions. Their ubiquitous presence in signaling networks has positioned them as targets for small‐molecule therapeutics. This review provides a structural introduction to these protein families.
Eric D. Brinckman, Anna E. Lester, Brian D. Zoltowski   +2 more
wiley   +1 more source

Walruses on the Dnieper: new evidence for the intercontinental trade of Greenlandic ivory in the Middle Ages. [PDF]

Proc Biol Sci, 2022
Barrett JH, Khamaiko N, Ferrari G, Cuevas A, Kneale C, Hufthammer AK, Pálsdóttir AH, Star B.   +7 more
europepmc   +1 more source

An upstream open reading frame regulates expression of the mitochondrial protein Slm35 and mitophagy flux

FEBS Letters, EarlyView.
This study reveals how the mitochondrial protein Slm35 is regulated in Saccharomyces cerevisiae. The authors identify stress‐responsive DNA elements and two upstream open reading frames (uORFs) in the 5′ untranslated region of SLM35. One uORF restricts translation, and its mutation increases Slm35 protein levels and mitophagy.
Hernán Romo‐Casanueva, Ariann E. Mendoza‐Martínez, P. Abril Medina‐Flores, Carlos Campero‐Basaldua, Alexander DeLuna, Soledad Funes   +5 more
wiley   +1 more source

Novel Sources of Biodiversity and Biomolecules from Bacteria Isolated from a High Middle Ages Soil Sample in Palermo (Sicily, Italy). [PDF]

Microbiol Spectr, 2023
Vassallo A, Modi A, Quagliariello A, Bacci G, Faddetta T, Gallo M, Provenzano A, La Barbera A, Lombardo G, Maggini V, Firenzuoli F, Zaccaroni M, Gallo G, Caramelli D, Aleo Nero C, Baldi F, Fani R, Palumbo Piccionello A, Pucciarelli S, Puglia AM, Sineo L.   +20 more
europepmc   +1 more source

Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions

FEBS Letters, EarlyView.
We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva, Puspa Kunwar, Md Ibnul Rifat Rahman, Joanna Koryo Kwao, Nathan Lehman, Zihan Zhang, Trenton Paul, Claire Cheng, Nicholas Truex, Hui‐Ting Lee, Jun Zhang   +10 more
wiley   +1 more source

Il nero di Cluny contro il bianco di Cîteaux: aspetti simbolici e cromatici degli abiti monastici medievali

Colloquia Theologica Ottoniana, 2013
At the beginning of the 11th Century, in the variegated universe that characterized the monastic religious orders with hermit tendencies, or monastic brotherhoods, and religious organizations, the choice of the habit began to take on profound ...
Diana Del Mastro
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