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Wyszukujesz frazę "protein-lipid membrane" wg kryterium: Temat

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    Wyświetlanie 1-4 z 4
    Tytuł:
    Electron tomography technique – useful tool for plasmodesmata ultrastructure analysis in maize leaves
    Autorzy:
    Bilska, A.
    Suski, S.
    Sowinski, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/80747.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    conference
    plasmodesma
    cytoplasmic microchannel
    plant cell
    protein-lipid membrane
    ultrastructure analysis
    maize
    leaf
    electron tomography technique
    Źródło:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 3
    0860-7796
    Pojawia się w:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Lipid-binding proteins as stabilizers of membrane microdomains - possible physiological significance.
    Autorzy:
    Bandorowicz-Pikuła, Joanna
    Powiązania:
    https://bibliotekanauki.pl/articles/1044288.pdf
    Data publikacji:
    2000
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Tematy:
    lipid-protein interactions
    lipid-binding proteins
    membrane microdomains
    Opis:
    Below the melting point temperature of lipids, artificial lipid membranes usually exist in the ordered gel phase. Above these temperatures lipid acyl chains become fluid and disordered (liquid-crystalline phase). Depending on the chemical composition of artificial membranes, phase separation may occur, leading to the formation of transient or stable membrane domains. A similar phase separation of lipids into ordered and disordered domains has been observed in natural membranes at physiological temperature range. Moreover, it has been reported that certain proteins prefer certain organization of lipids, as for example glycosylphosphatidylinositol-anchored proteins or Src family of tyrosine kinases. The aim of present review is to discuss the possibility that some lipid microdomains are induced or stabilized by lipid-binding proteins that under certain conditions, for example due to a rise of cytosolic Ca2+ or pH changes, may attach to the membrane surface, inducing clustering of lipid molecules and creation of ordered lipid microdomains. These domains may than attract other cytosolic proteins, either enzymes or regulatory proteins. It is, therefore, postulated that lipid microdomains play important roles within a cell, in signal transduction and enzymatic catalysis, and also in various pathological states, as Alzheimer's disease, anti-phosphatidylserine syndrome, or development of multidrug resistance of cancer cells.
    Źródło:
    Acta Biochimica Polonica; 2000, 47, 3; 553-564
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Phosphatidic acid - a simple phospholipid with multiple faces
    Autorzy:
    Zegarlińska, Jolanta
    Piaścik, Magda
    Sikorski, Aleksander
    Czogalla, Aleksander
    Powiązania:
    https://bibliotekanauki.pl/articles/1038384.pdf
    Data publikacji:
    2018
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Tematy:
    phosphatidic acid
    protein-lipid interaction
    signaling
    membrane curvature
    membrane model systems
    Opis:
    Phosphatidic acid (PA) is the simplest glycerophospholipid naturally occurring in living organisms, and even though its content among other cellular lipids is minor, it is drawing more and more attention due to its multiple biological functions. PA is a precursor for other phospholipids, acts as a lipid second messenger and, due to its structural properties, is also a modulator of membrane shape. Although much is known about interaction of PA with its effectors, the molecular mechanisms remain unresolved to a large degree. Throughout many of the well-characterized PA cellular sensors, no conserved binding domain can be recognized. Moreover, not much is known about the cellular dynamics of PA and how it is distributed among subcellular compartments. Remarkably, PA can play distinct roles within each of these compartments. For example, in the nucleus it behaves as a mitogen, influencing gene expression regulation, and in the Golgi membrane it plays a role in membrane trafficking. Here, we discuss how a biophysical experimental approach enabled PA behavior to be described in the context of a lipid bilayer and to what extent various physicochemical conditions may modulate the functional properties of this lipid. Understanding these aspects would help to unravel specific mechanisms of PA-driven membrane transformations and protein recruitment and thus would lead to a clearer picture of the biological role of PA.
    Źródło:
    Acta Biochimica Polonica; 2018, 65, 2; 163-171
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Alzheimers disease: Its origin at the membrane, evidence and questions.
    Autorzy:
    Buchet, Rene
    Pikuła, Sławomir
    Powiązania:
    https://bibliotekanauki.pl/articles/1044315.pdf
    Data publikacji:
    2000
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Tematy:
    β-amyloid precursor protein
    membrane proteases
    Alzheimer's disease
    lipid composition
    membrane microdomains
    Opis:
    Numerous results on membrane lipid composition from different regions of autopsied Alzheimer's disease brains in comparison with corresponding fractions isolated from control brains revealed significant differences in serine- and ethanolamine-containing glycerophospholipid as well as in glycosphingolipid content. Changes in membrane lipid composition are frequently accompanied by alterations in membrane fluidity, hydrophobic mismatch, lipid signaling pathways, transient formation and disappearance of lipid microdomains, changes in membrane permeability to cations and variations of other membrane properties. In this review we focus on possible implications of altered membrane composition on β-amyloid precursor protein (APP) and on proteolysis of APP leading eventually to the formation of neurotoxic β-amyloid (Aβ) peptides, the major proteinaceous component of extracellular senile plaques, directly involved in Alzheimer's disease pathogenesis.
    Źródło:
    Acta Biochimica Polonica; 2000, 47, 3; 725-733
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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