Results 41 to 50 of about 504,058 (195)

Optical dispersions through intracellular inhomogeneities

open access: yesPhysical Review Research, 2023
The transport of intensity equation (TIE) exhibits a noninterferometric correlation between the intensity and phase variations of intermediate fields (e.g., light and electrons) in biological imaging. Previous TIE formulations have generally assumed free-
Masaki Watabe   +4 more
doaj   +1 more source

Reorganization of Cell Compartmentalization Induced by Stress

open access: yesBiomolecules, 2022
The discovery of intrinsically disordered proteins (IDPs) that do not have an ordered structure and nevertheless perform essential functions has opened a new era in the understanding of cellular compartmentalization.
Anna S. Fefilova   +5 more
doaj   +1 more source

Relationship between membrane phosphatidylinositol-4,5-bisphosphate and receptor-mediated inhibition of native neuronal M channels [PDF]

open access: yes, 2005
The relationship between receptor-induced membrane phosphatidylinositol-4'5'-bisphosphate (PIP2) hydrolysis and M-current inhibition was assessed in single-dissociated rat sympathetic neurons by simultaneous or parallel recording of membrane current and ...
Abogadie, FC   +6 more
core   +1 more source

Peroxicretion: a novel secretion pathway in the eukaryotic cell

open access: yesBMC Biotechnology, 2009
Background Enzyme production in microbial cells has been limited to secreted enzymes or intracellular enzymes followed by expensive down stream processing.
Luesken Francisca A   +11 more
doaj   +1 more source

Phosphodiesterase 5 (PDE5) restricts intracellular cGMP accumulation during enterotoxigenic Escherichia coli infection

open access: yesGut Microbes, 2020
Diarrhea caused by enterotoxigenic Escherichia coli (ETEC) has a continuing impact on residents and travelers in underdeveloped countries. Both heat-labile (LT) and heat-stable (ST) enterotoxins contribute to pathophysiology via induction of cyclic ...
Jennifer Foulke-Abel   +6 more
doaj   +1 more source

Penetration of Mannitol into the Intracellular Space of Chlorella sorokiniana [PDF]

open access: yesPlant Physiology, 1977
It was found that in the alga, Chlorella sorokiniana, mannitol penetrated the plasmalemma (normally thought to be impermeable to mannitol) into the intracellular space. The rate of penetration is exponential and relatively slow, having a half-time of 6 to 12 minutes and requiring over 60 minutes for complete penetration.
openaire   +2 more sources

Establishing the intracellular niche of obligate intracellular vacuolar pathogens

open access: yesFrontiers in Cellular and Infection Microbiology, 2023
Obligate intracellular pathogens occupy one of two niches – free in the host cell cytoplasm or confined in a membrane-bound vacuole. Pathogens occupying membrane-bound vacuoles are sequestered from the innate immune system and have an extra layer of ...
Tatiana M. Clemente   +2 more
doaj   +1 more source

Hopanoid lipids may facilitate aerobic nitrogen fixation in the ocean. [PDF]

open access: yes, 2019
Cyanobacterial diazotrophs are considered to be the most important source of fixed N2 in the open ocean. Biological N2 fixation is catalyzed by the extremely O2-sensitive nitrogenase enzyme.
Cornejo-Castillo, Francisco M   +1 more
core   +1 more source

Extracellular cysteine in connexins: Role as redox sensors [PDF]

open access: yes, 2016
Indexación: Scopus.Connexin-based channels comprise hemichannels and gap junction channels. The opening of hemichannels allow for the flux of ions and molecules from the extracellular space into the cell and vice versa.
Báez, D.   +7 more
core   +2 more sources

Purinergic Signaling: A Common Path in the Macrophage Response against Mycobacterium tuberculosis and Toxoplasma gondii

open access: yesFrontiers in Cellular and Infection Microbiology, 2017
Immune responses are essential for the protection of the host against external dangers or infections and are normally efficient in the clearance of invading microbes.
Laetitia Petit-Jentreau   +3 more
doaj   +1 more source

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