Results 31 to 40 of about 2,292,613 (306)

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

open access: yesFEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li   +2 more
wiley   +1 more source

Attenuation of species abundance distributions by sampling [PDF]

open access: yes, 2015
Quantifying biodiversity aspects such as species presence/ absence, richness and abundance is an important challenge to answer scientific and resource management questions.
Shimadzu, Hideyasu   +3 more
core   +1 more source

Occurrence of Limnoperna fortunei (Mollusca, Mytilidae) in the Uruguay River, municipality of Uruguaiana, western border of Rio Grande do Sul, Brazilian Pampa [PDF]

open access: yesBiotemas, 2013
This paper reports on the occurrence of the golden mussel Limnoperna fortunei (Dunker, 1857) in the natural environment in the city of Uruguaiana, in Rio Grande do Sul.
Marcus V. M. Querol   +4 more
doaj  

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

Growth and mortality of Cichla spp. (Perciformes, Cichlidae) introduced in Volta Grande Reservoir (Grande River) and in a small artificial lake in Southeastern Brazil

open access: yesBrazilian Journal of Biology
The growth and mortality parameters were estimated through the analysis of length frequency distribution for species of Cichla spp. introduced into a lake in Leme (SP), and in Volta Grande reservoir (SP-MG).
LM. Gomiero   +4 more
doaj   +1 more source

Geographic distribution and growing conditions species of the genus Hemerocallis L., the respectives of their introduction in Ukraine

open access: yesІнтродукція Рослин, 2013
The distribution and growing conditions species of the genus Hemerocallis L. are given. An analysis of the plasticity of the species are made. Species of daylilies introduced in Ukraine are reviewed.
T.F. Chipilyak
doaj   +1 more source

Tau acetylation at K331 has limited impact on tau pathology in vivo

open access: yesFEBS Letters, EarlyView.
We mapped tau post‐translational modifications in humanized MAPT knock‐in mice and in amyloid‐bearing double knock‐in mice. Acetylation within the repeat domain, particularly around K331, showed modest increases under amyloid pathology. To test functional relevance, we generated MAPTK331Q knock‐in mice.
Shoko Hashimoto   +3 more
wiley   +1 more source

Seasonal and ontogenetic variations in the diet of Cichla kelberi Kullander and Ferreira, 2006 introduced in an artificial lake in southeastern Brazil

open access: yesBrazilian Journal of Biology
The diet of Cichla kelberi introduced in an artificial lake in Leme-SP was predominantly composed of common fish species (Oreochromis niloticus and C. kelberi). In the spring and summer, the most consumed item was O. niloticus.
LM Gomiero, GA Villares Junior, F Naous
doaj   +1 more source

Scientific bases of exposition "Rose Garden" formation in State Dendrological Park Olexandria of the NAS of Ukraine

open access: yesІнтродукція Рослин, 2014
The results of work on the design for the collection and exhibition plot “Rose Garden” in Dendrological Park Olexandria are given. A draft of the rosary with a regular layout and modular flower beds on the background lawn are developed.
V.L. Rubis
doaj   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

open access: yesFEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

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