Results 101 to 110 of about 626,055 (306)

Organizing the interface—Plasma membrane architecture and receptor dynamics in virus‐cell interactions

open access: yesFEBS Letters, EarlyView.
Plasma membranes contain dynamic nanoscale domains that organize lipids and receptors. Because viruses operate at similar scales, this architecture shapes early infection steps, including attachment, receptor engagement, and entry. Using influenza A virus and HIV‐1 as examples, we highlight how receptor nanoclusters, multivalent glycan interactions ...
Jan Schlegel, Christian Sieben
wiley   +1 more source

Epigenetic blind spots – the role of DNA methylation dynamics in stem cell‐based models of embryogenesis

open access: yesFEBS Letters, EarlyView.
Embryo‐like structures (stembryos) are an innovative tool, but they are hindered by experimental variability and limited developmental potential. DNA methylation is crucial for mammalian development, but its status in stembryo models is poorly characterized.
Sara Canil   +4 more
wiley   +1 more source

pH‐mediated activation of the lysosomal arginine sensor SLC38A9

open access: yesFEBS Letters, EarlyView.
Cells monitor nutrient levels via the lysosomal transporter SLC38A9 to activate the mechanistic target of rapamycin complex 1 (mTORC1). This study reveals that SLC38A9 function is regulated by pH. We identified histidine 544 as a critical pH sensor that undergoes conformational changes to control amino acid efflux from lysosomes; therefore, it ...
Xuelang Mu, Ampon Sae Her, Tamir Gonen
wiley   +1 more source

On the Compression of Reproductive Spans: the case of Andhra Pradesh in India

open access: yes, 2004
Many women in Andhra Pradesh marry early, have two or three children and accept voluntary sterilization at very early ages. The state has recently succeeded in reducing fertility to near replacement levels.
Hutted, Inge   +2 more
core  

Residual tail twisting in ascidian larvae is stabilized by asymmetric myofibrils that resist bilateral symmetry restoration

open access: yesFEBS Letters, EarlyView.
Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure   +3 more
wiley   +1 more source

Reproductive system of diplopterys pubipetala (malpighiaceae) plants from a savanna ecosystem [PDF]

open access: yes, 2016
Diplopterys pubipetala is a Neotropical Malpighiaceae species widely distributed in savanna and tropical semideciduous forests of Brazil. Its flowers are zygomorphic and show glands on calyx, corolla and androecium, which have been related with the ...
Elza Guimarães   +2 more
core  

Floral biology and reproductive mechanisms of Mussambê (Cleome spinosa Jacq) aiming at the plant breeding [PDF]

open access: yesBiotemas, 2007
Some plants from Cleome genus in Capparaceae family are used as medicinal and ornamental plants. The aim of this work was to study the fl oral biology and the reproductive mechanisms of C. spinosa to the plant breeding. Anthesis occurred between 17:30 to
Cláudio Lúcio Fernandes Amaral   +2 more
doaj  

Biophysical approaches for studying viral entry

open access: yesFEBS Letters, EarlyView.
Viruses infect all living organisms and have been responsible for major epidemics and pandemics. Their ongoing evolutionary battle with host defenses creates a constant need for improved tools to study viral behavior. Advancing methods to probe viral attachment, fusion, and genome release deepen our understanding of how infections begin and support the
Inbar Yosibash, Raya Sorkin
wiley   +1 more source

Demographic and Reproductive Status of Lake Sturgeon in the Muskegon River System, Michigan

open access: yes, 2013
My study focused on a threatened population of lake sturgeon (Acipenser fulvescens) in the Muskegon River system, Michigan. I assessed the condition, growth and population dynamics of lake sturgeon and compared them to nearby populations using a ...
Wieten, Alex C.
core  

MORPHOLOGICAL AND ANATOMICAL FEATURES OF FLAMMULINA FESTIVA SCOTT, 1970 (STYLOMMATOPHORA; CHAROPIDAE) FROM SOUTHERN CHILE, WITH NOTES ON ITS NATURAL HISTORY CARACTERISTICAS ANATOMICAS Y MORFOLOGICAS DE FLAMMULINA FESTIVA SCOTT, 1970 (STYLOMMATOPHORA; CHAROPIDAE) DEL SUR DE CHILE, CON NOTAS SOBRE SU HISTORIA NATURAL

open access: yesGayana, 2008
Flammulina festiva Scott, 1970 is a terrestrial gastropod endemic to southern Chile. Characteristics of living specimens, including the anatomy of the excretory and reproductive systems of this species are here reported for the first time.
Francisco J Cádiz, Carlos S Gallardo
doaj  

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