Results 41 to 50 of about 391,097 (311)

Carbohydrate specificity of sea urchin sperm bindin: a cell surface lectin mediating sperm-egg adhesion. [PDF]

open access: yes, 1982
We have examined the carbohydrate specificity of bindin, a sperm protein responsible for the adhesion of sea urchin sperm to eggs, by investigating the interaction of a number of polysaccharides and glycoconjugates with isolated bindin.
Glabe, CG   +3 more
core  

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

open access: yesFEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee   +3 more
wiley   +1 more source

Chemoenzymatic elaboration of monosaccharides using engineered cytochrome P450_(BM3) demethylases [PDF]

open access: yes, 2009
Polysaccharides comprise an extremely important class of biopolymers that play critical roles in a wide range of biological processes, but the synthesis of these compounds is challenging because of their complex structures.
Arnold, Frances H.   +8 more
core   +1 more source

A Rapid and Efficient Method for Purifying High Quality Total RNA from Peaches (Prunus persica) for Functional Genomics Analyses [PDF]

open access: yes, 2005
http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602005000100010&lng=es&nrm=isoPrunus persica has been proposed as a genomic model for deciduous trees and the Rosaceae family.
Baeza-Yates, Ricardo   +9 more
core   +2 more sources

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

 Immunomodulatory, antioxidant and anti-tumor capacity of acidic polysaccharides from Euglena gracilis. [PDF]

open access: yes, 2018
Euglena sp. is a microalga producer of important molecules for the Biotechnology industry, since it is a producer of substances such as vitamins A, C and E, essential amino acids, polyunsaturated fatty acids, β-carotenes and paramilon (β-1,3-glucan).
Abdala-Diaz, Roberto Teofilo   +3 more
core  

Polysaccharide-based self-assembling nanohydrogels: An overview on 25-years research on pullulan [PDF]

open access: yes, 2015
The aim of this overview is to review the evolution of the studies carried out, during more than 25 years, on nanohydrogels obtained by self-assembling of pullulan (PUL) using several hydrophobization strategies.
ALHAIQUE, Franco   +4 more
core   +1 more source

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

open access: yesMolecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

Ganoderma atrum polysaccharide relieves mitochondrial dysfunction to alleviate hydrogen peroxide-induced senescence via activating autophagy

open access: yesJournal of Future Foods, 2022
Polysaccharides from genus Ganoderma have prominent anti-aging effect, but their mechanisms are incompletely clarified. In our previous experiments, Ganoderma atrum polysaccharide (PSG) was exhibited to significantly alleviate senescence and DNA damage ...
Mi Guo   +7 more
doaj   +1 more source

Bacteriophage-encoded virion-associated enzymes to overcome the carbohydrate barriers during the infection process [PDF]

open access: yes, 2017
Bacteriophages are bacterial viruses that infect the host after successful receptor recognition and adsorption to the cell surface. The irreversible adherence followed by genome material ejection into host cell cytoplasm must be preceded by the passage ...
Briers, Yves   +4 more
core   +1 more source

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