Results 121 to 130 of about 13,050,965 (387)

A contingency table approach based on nearest neighbour relations for testing self and mixed correspondence [PDF]

open access: yes, 2018
Nearest neighbour methods are employed for drawing inferences about spatial patterns of points from two or more classes. We introduce a new pattern called correspondence which is motivated by (spatial) niche/habitat specificity and segregation, and ...
Ceyhan, Elvan
core  

Hemotropic mycoplasmas in little brown bats (Myotis lucifugus). [PDF]

open access: yes, 2014
BackgroundHemotropic mycoplasmas are epicellular erythrocytic bacteria that can cause infectious anemia in some mammalian species. Worldwide, hemotropic mycoplasmas are emerging or re-emerging zoonotic pathogens potentially causing serious and ...
Breitschwerdt, Edward B   +5 more
core   +2 more sources

The nicotinamide hypothesis revisited—plant defense signaling integrating PARP, nicotinamide, nicotinic acid, epigenetics, and glutathione

open access: yesFEBS Letters, EarlyView.
Nicotinamide (NIC) and nicotinic acid (NIA) are proposed as stress signaling compounds in plants. Oxidative stress may lead to single strand breaks (SSB) in DNA, which activate poly(ADP‐ribose) polymerase (PARP). NIC and NIA are then formed from NAD. NIC and NIA can promote epigenetic changes leading to the expression of defense genes specific for the ...
Torkel Berglund, Anna B. Ohlsson
wiley   +1 more source

Revisiting microgenderome: detecting and cataloguing sexually unique and enriched species in human microbiomes

open access: yesBMC Biology
Background Microgenderome or arguably more accurately microsexome refers to studies on sexual dimorphism of human microbiomes aimed at investigating bidirectional interactions between human microbiomes, sex hormones, and immune systems.
Zhanshan Sam Ma
doaj   +1 more source

Relationship of membrane phospholipid composition, lactosylceramide molecular species, and the specificity of CMP-N-acetylneuraminate:lactosylceramide alpha 2,3-sialyltransferase to the molecular species composition of GM3 ganglioside.

open access: yesJournal of Lipid Research, 1995
The ceramide molecular species specificity of rat brain neuron CMP-N-acetylneuraminate:lactosylceramide alpha 2,3-sialyltransferase (LacCer alpha 2,3-ST) was determined using 19 molecular species of lactosylceramide incorporated into liposomes prepared ...
H. Kadowaki, M.A. Grant
doaj   +1 more source

Identification of calpain cleavage sites in the G1 cyclin-dependent kinase inhibitor p19(INK4d) [PDF]

open access: yes, 2006
Calpains are a large family of Ca2+-dependent cysteine proteases that are ubiquitously distributed across most cell types and vertebrate species. Calpains play a role in cell differentiation, apoptosis, cytoskeletal remodeling, signal transduction and ...
Croall   +13 more
core   +2 more sources

Structural dynamics of the plant hormone receptor ETR1 in a native‐like membrane environment

open access: yesFEBS Letters, EarlyView.
The present study unveils the structural and signaling dynamics of ETR1, a key plant ethylene receptor. Using an optimized nanodisc system and solution NMR, we captured full‐length ETR1 in a native‐like membrane environment. Our findings reveal dynamic domain uncoupling and Cu(I)‐induced rigidification, providing the first evidence of metal‐triggered ...
Moritz Lemke   +2 more
wiley   +1 more source

A PERSPECTIVE CULTURAL MODEL FOR CONTROL OF BIOLOGICAL ACTIVITY OF HUMAN INTERFERONS

open access: yesЖурнал микробиологии, эпидемиологии и иммунобиологии, 2015
Aim. Study species specificity of human lymphocyte interferon alpha in vitro in cell cultures of swine origin for expansion of cell line spectrum for interferon titration and control of newly created interferons and interferon-like preparations in vivo ...
F. G Nagieva   +5 more
doaj  

Patterns of interaction specificity of fungus-growing termites and Termitomyces symbionts in South Africa

open access: yesBMC Evolutionary Biology, 2007
Background Termites of the subfamily Macrotermitinae live in a mutualistic symbiosis with basidiomycete fungi of the genus Termitomyces. Here, we explored interaction specificity in fungus-growing termites using samples from 101 colonies in South-Africa ...
de Beer Z Wilhelm   +7 more
doaj   +1 more source

Antibodies for immunolabeling by light and electron microscopy : not for the faint hearted [PDF]

open access: yes, 2014
Reliable antibodies represent crucial tools in the arsenal of the cell biologist and using them to localize antigens for immunocytochemistry is one of their most important applications.
Griffiths, Gareth, Lucocq, John Milton
core   +1 more source

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