Results 41 to 50 of about 56,724 (289)

Peptide‐based ligand antagonists block a Vibrio cholerae adhesin

FEBS Letters, EarlyView.
The structure of a peptide‐binding domain of the Vibrio cholerae adhesin FrhA was solved by X‐ray crystallography, revealing how the inhibitory peptide AGYTD binds tightly at its Ca2+‐coordinated pocket. Structure‐guided design incorporating D‐amino acids enhanced binding affinity, providing a foundation for developing anti‐adhesion therapeutics ...
Mingyu Wang, Grace Du, Charity Yongo‐Luwawa, Angelina Lu, Brett Kinrade, Kim Munro, Karl E. Klose, William D. Lubell, Peter Davies, Shuaiqi Guo   +9 more
wiley   +1 more source

Resposta de sementes de amendoim a diferentes doses de radiação gama (60Co) Response of peanut seeds to different levels of gamma radiation (60Co)

Revista Brasileira de Engenharia Agrícola e Ambiental, 2010
A radiação gama, proveniente da fonte de 60Co, é bastante utilizada para esterilização, visando a prevenção da decomposição e a toxidez de origem microbiana em diversos produtos.
Tatiana da S. Santos, Francisco de A. C. Almeida, Taís de M. F. Suassuna, Wirton M. Coutinho, Pollyne B. A. Almeida   +4 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

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

FEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe, Tanmay Kumar Mohanty, Rashna Bhandari, Dorothea Fiedler   +3 more
wiley   +1 more source

Qualidade fisiológica de sementes de araçazeiro durante o armazenamento Physiological quality of seeds of Psidium guineense Swartz during storage

Revista Brasileira de Engenharia Agrícola e Ambiental, 2003
O presente trabalho teve como objetivo avaliar diferentes ambientes de armazenamento e embalagens quanto à eficiência na manutenção da qualidade das sementes de araçazeiro (Psidium guineenseSwartz) durante 180 dias.
Roberta A. Cisneiros, Valderez P. Matos, Margarida A. Lemos, Odemar V. dos Reis, Rosilda de M. Queiroz   +4 more
doaj   +1 more source

Mechanisms of parasite‐mediated disruption of brain vessels

FEBS Letters, EarlyView.
Parasites can affect the blood vessels of the brain, often causing serious neurological problems. This review explains how different parasites interact with and disrupt these vessels, what this means for brain health, and why these processes matter. Understanding these mechanisms may help us develop better ways to prevent or treat brain infections in ...
Leonor Loira, Sílvia Arroz‐Madeira, Cláudio A. Franco, Sara Silva Pereira   +3 more
wiley   +1 more source

Qualidade fisiológica das sementes de sorgo sacarino submetidas à secagem em diferentes condições de ar

Revista Brasileira de Engenharia Agrícola e Ambiental, 2015
Objetivou-se, com este trabalho, analisar a qualidade fisiológica das sementes de sorgo sacarino submetidas à secagem em diferentes condições de ar.
Renan Ullmann, Osvaldo Resende, Tarcísio H. Chaves, Daniel E. C. de Oliveira, Lílian M. Costa   +4 more
doaj   +1 more source

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

Hipoclorito de sódio na qualidade fisiológica e anatomia do tegumento de sementes do trifoliateiro ‘Flying Dragon’ [PDF]

Ciência e Agrotecnologia
RESUMO As mudas de porta-enxertos de citros são obtidas de sementes, cujo tegumento dificulta sua germinação e a emergência das plântulas. Assim, torna-se indispensável o desenvolvimento de métodos eficientes de remoção do tegumento para acelerar ...
Antonio Maricélio Borges de Souza, Cleidiane Alves Rodrigues, Samuel Gonçalves Ferreira dos Santos, Júlio César de Almeida Andrade, Eduardo Fontes Araujo, Mateus Pereira Gonzatto   +5 more
doaj   +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