Results 81 to 90 of about 1,342,717 (316)

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

Identification of Species of Scenedesmus [PDF]

open access: yesNature, 1963
AMONG the organisms frequently encountered in investigations of freshwater habitats are members of the genus Scenedesmus. Species are delimited on the basis of the size and shape of the cells, as well as position and number of spines, if present. Although Smith1 in his monograph of the genus shows some variation in these characters, one can, with some ...
FRANCIS R. TRAINOR, RICHARD L. HILTON
openaire   +1 more source

Comparison of methods for the microbiological identification and profiling of cronobacter species from ingredients used in the preparation of infant formula [PDF]

open access: yes, 2013
Cronobacter spp. (formerly Enterobacter sakazakii) can be isolated from a wide range of foods and environments, and its association with neonatal infections has drawn considerable attention from regulatory authorities.
Cetinkaya, E   +7 more
core   +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

MASS-SPECTROMETRY IN MICROBIOLOGICAL PRACTICE OF SCIENTIFIC CENTRE OF OBSTETRICS, GYNECOLOGY AND PERINATOLOGY

open access: yesЖурнал микробиологии, эпидемиологии и иммунобиологии, 2016
Aim. Comparative evaluation of species identification of microorganisms by MALDI-TOF mass-spectrometry and automatic biochemical analyzer VITEK2 Compact30. Materials and methods.
T. V. Priputnevich   +5 more
doaj   +1 more source

Utility of mitochondrial COI gene for identification of wild ungulate species of conservational importance from Pakistan

open access: yesMitochondrial DNA. Part B. Resources, 2020
Most of the ungulates of Pakistan are either threatened or endangered species and their solitary and inaccessible life style makes them difficult to study. Therefore, estimating biodiversity, monitoring illegal trades and detecting commercial food frauds
Asif Naseem   +2 more
doaj   +1 more source

The human gut microbiome across the life course

open access: yesFEBS Letters, EarlyView.
Despite significant individual variation and continuous change throughout life, the human gut microbiome follows some life stage‐specific trends. This article provides a brief overview of how gut microbiome composition shifts across different phases of life. Created in BioRender. Özkurt, E. (2026) https://BioRender.com/8q4nrnc.
Alise J. Ponsero   +4 more
wiley   +1 more source

Septin 9 PB domains coordinate centrosome positioning and microtubule acetylation to control epithelial polarity

open access: yesFEBS Letters, EarlyView.
Septin 9 polybasic domains couple phosphoinositide‐rich membrane binding to centrosome positioning, Golgi organization, and microtubule acetylation to control epithelial polarity. Their loss disrupts this axis, causing centrosome mispositioning, Golgi fragmentation, reduced microtubule acetylation, and polarity inversion via upregulation of the ...
Ting ting Cai   +4 more
wiley   +1 more source

DNA Barcoding of Marine Copepods: Assessment of Analytical Approaches to Species Identification

open access: yes, 2014
More than 2,500 species of copepods (Class Maxillopoda; Subclass Copepoda) occur in the marine planktonic environment. The exceptional morphological conservation of the group, with numerous sibling species groups, makes the identification of species ...
Blanco Bercial, Leocadio   +3 more
core   +1 more source

Rab14 regulates the transport of human papillomavirus to the trans‐Golgi network for infectious cell entry

open access: yesFEBS Letters, EarlyView.
This study reveals that the small GTPase Rab14 is necessary for human papillomavirus (HPV) infection and plays an essential role in the transport of virions to the trans‐Golgi network (TGN). HPV in the early endosome (EE), which harbors GTP‐bound Rab14, is transported to the TGN through the switch of Rab14 from its GTP‐bound to GDP‐bound form.
Yoshiyuki Ishii, Iwao Kukimoto
wiley   +1 more source

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