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Wyszukujesz frazę "Jackowski, G." wg kryterium: Autor

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    Wyświetlanie 1-12 z 12
    Tytuł:
    Degradation of apoproteins of the major light harvesting complex of photosystem II (LHCII) in response to stresses is mediated by chloroplastic FtsH heterocomplex
    Autorzy:
    Lucinski, R.
    Jackowski, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/81200.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    conference
    apoprotein
    degradation
    light harvesting complex
    photosystem II
    chloroplast protein
    thylakoid membrane
    Arabidopsis thaliana
    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:
    Isolation of intact and pure chloroplasts from leaves of Arabidopsis thaliana plants acclimated to low irradiance for studies on Rubisco regulation
    Autorzy:
    Grabsztunowicz, M.
    Jackowski, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/56870.pdf
    Data publikacji:
    2013
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2013, 82, 1
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Aggregation of LS Rubisco in response to exposure of plants to low irradiance
    Autorzy:
    Grabsztunowicz, M.
    Jackowski, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/79910.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    conference
    Rubisco
    aggregation
    bifunctional enzyme
    terrestrial plant
    holoenzyme
    reactive oxygen species
    oxidative modification
    plant exposure
    irradiance
    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:
    The regulatory role of AtDeg5 chloroplast protease in chronological progression of principal growth stages in Arabidopsis thaliana plants
    Autorzy:
    Baranek, M.
    Lucinski, R.
    Jackowski, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/80598.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    conference
    serine-type protease
    chymotrypsin
    thylakoid membrane
    photosystem II
    protease
    chloroplast
    Arabidopsis thaliana
    ontogenesis
    growth stage
    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:
    AtDeg2 - a chloroplast protein with dual protease/chaperone activity
    Autorzy:
    Jagodzik, P.
    Adamiec, M.
    Jackowski, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/57301.pdf
    Data publikacji:
    2014
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    chloroplast protein
    protease
    proteolytic enzyme
    chaperone
    enzyme activity
    chloroplast
    PDZ domain
    Opis:
    Chloroplast protease AtDeg2 (an ATP-independent serine endopeptidase) is cytosolically synthesized as a precursor, which is imported into the chloroplast stroma and deprived of its transit peptide. Then the mature protein undergoes routing to its functional location at the stromal side of thylakoid membrane. In its linear structure AtDeg2 molecule contains the protease domain with catalytic triad (HDS) and two PDZ domains (PDZ1 and PDZ2). In vivo AtDeg2 most probably exists as a supposedly inactive haxamer, which may change its oligomeric stage to form active 12-mer, or 24-mer. AtDeg2 has recently been demonstrated to exhibit dual protease/chaperone function. This review is focused on the current awareness with regard to AtDeg2 structure and functional significance.
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2014, 83, 3
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Downregulation of chloroplast protease AtDeg5 leads to changes in chronological progression of ontogenetic stages, leaf morphology and chloroplast ultrastructure in Arabidopsis
    Autorzy:
    Baranek, M.
    Wyka, T.P.
    Jackowski, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/57852.pdf
    Data publikacji:
    2015
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    chloroplast protease
    AtDeg5 protease
    chronological progression
    ontogenetic stage
    leaf morphology
    chloroplast ultrastructure
    Arabidopsis
    starch grain
    Opis:
    The chloroplast protein AtDeg5 is a serine-type protease peripherally attached to thylakoid membrane at its lumenal side. Since reliable data regarding the role of AtDeg5 in controlling the course of growth and developmental processes are extremely limited, two independent T-DNA insertional lines with different extent of AtDeg5 reduction were prepared and ontogenesis stage-based analysis performed. Both mutant lines displayed a compensatory overaccumulation of AtDeg8. The repression of AtDeg5 protease altered a range of phenotypic features in at least one of the mutants, with the most prominent being changes in chronological progression of development and growth of individual rosette leaves, flower production and silique ripening as well as in the area of fully expanded leaves and chloroplast ultrastructure. By analyzing the results of parallel-mutant screening we conclude that AtDeg8 overdose may rescue 23% of AtDeg5 deficiency with regard to some AtDeg5-controlled traits; alternatively AtDeg5 may have catalytic sites in excess so that these traits might remain unaltered when AtDeg5 pool is reduced by 23%. For some other AtDeg5-dependent traits the absence of excessive amount of AtDeg5 catalytic sites, lack of AtDeg5 dosage effect and inability of AtDeg8 to compensate deficiency or absence of AtDeg5 occurred.
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2015, 84, 1
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The contribution of individual domains of chloroplast protein AtDeg2 to its chaperone and proteolytic activities
    Autorzy:
    Jagodzik, P.
    Lucinski, R.
    Misztal, L.
    Jackowski, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/59003.pdf
    Data publikacji:
    2018
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Opis:
    The thylakoid protease AtDeg2 is a non-ATP hydrolyzing chloroplast protease/ chaperone peripherally connected with stromal side of thylakoid membrane. Its linear structure consists of protease domain and two PDZ domains. To unveil the significance of individual domains, chaperone and proteolytic activities of AtDeg2, its mutated recombinant versions have been developed and their ability to suppress protein aggregation and resolubilization of protein aggregates as well as the ability to degrade substrate protein was examined in vitro. Our work reveals for the first time that AtDeg2 is able not only to suppress aggregation of denatured proteins, but to resolubilize existing protein aggregates as well. We show that PDZ2 domain contributes significantly to both chaperone and protease activities of AtDeg2, whereas PDZ1 is required for chaperone but superfluous for proteolytic activity. Protease domain – but not S-268 in its catalytic site – contributes to chaperone activities of AtDeg2. These results show an entirely new function of AtDeg2 chaperone/protease (i.e., disaggregation of protein aggregates) and allow to identify structural motifs required for “old” and new functions of AtDeg2.
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2018, 87, 1
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Dynamics of excitation energy transfer in PSII particles of Arabidopsis thaliana mutant clpC1
    Autorzy:
    Adamiec, M.
    Lucinski, R.
    Gibasiewicz, K.
    Giera, W.
    Sipinska, W.
    Jackowski, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/80441.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    conference
    excitation energy transfer
    Arabidopsis thaliana
    clpC1 mutant
    polypeptide
    time-resolved fluorescence
    regulatory protein
    chloroplast
    apoprotein
    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:
    Chloroplast protease/chaperone AtDeg2 influences cotyledons opening and reproductive development in Arabidopsis
    Autorzy:
    Adamiec, M.
    Jagodzik, P.
    Wyka, T.P.
    Ludwikow, A.
    Mitula, F.
    Misztal, L.
    Lucinski, R.
    Jackowski, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/56435.pdf
    Data publikacji:
    2018
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Opis:
    AtDeg2 is a chloroplast protein with dual protease/chaperone activity. Since data on how the individual activities of AtDeg2 affect growth and development of Arabidopsis thaliana plants is missing, two transgenic lines were prepared that express mutated AtDeg2 versions that have either only protease or chaperone activity and a comprehensive ontogenesis stage-based study was performed comprising wild type (WT) plants and insertional mutants that do not express AtDeg2, as well as the two transgenic lines. The repression of both AtDeg2 activities in deg2-3 mutants altered just a few phenotypic traits including the time when cotyledons were fully opened, the time when 10% flowers were open as well as the number of inflorescence branches and seed length in plants which have completed their generative development. It was demonstrated that complete opening of cotyledons as well as the number of inflorescence branches and seed length in plants which have completed their generative development required involvement of both AtDeg2 activities, whereas the time when 10% of flowers were open was controlled by AtDeg2 protease activity. These results show for the first time that the chaperone activity of AtDeg2 is needed for some elements of generative development of A. thaliana plants to proceed normally. So far, the chaperone activity of AtDeg2 was confirmed based on in vitro assays only.
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2018, 87, 2
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Asymmetry in Mössbauer spectra of FeIII-azaporphyrin complexes
    Autorzy:
    Kaczmarzyk, T.
    Jackowski, T.
    Dziliński, K.
    Sinyakov, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/148331.pdf
    Data publikacji:
    2007
    Wydawca:
    Instytut Chemii i Techniki Jądrowej
    Tematy:
    Mössbauer spectroscopy
    iron porphyrins
    azaporphyrins
    asymmetry in Mössbauer spectra
    spin-spin and spin-lattice relaxation
    Opis:
    Temperature dependence of asymmetry as well as isomer shift and quadrupole splitting values of Mössbauer spectra of trivalent iron complexes coordinated to porphyrin ligands such as octaethylporphyrin, monoazaethioporphyrin, diazaoctaethylporphyrin and phthalacyanine is discussed in this paper. All the above mentioned complexes have the chloride axial ligand at the fifth coordination site. Different temperature changes of asymmetry and other parameters of Mössbauer spectra of these complexes can be correlated with a number of methine bridges CH substituted by nitrogen atoms in the porphyrin macrocycle. The form of this asymmetry is such that the higher-energy component of the doublet is more broadened than the lower-energy one, while the areas (intensities) under each of two components are the same. The most distinct asymmetry is observed at room temperature. When temperature is decreasing, the spectrum becomes successively more symmetrical and at liquid helium temperature linewidths of both components of the quadrupole splitting are very close one another. The Mössbauer spectrum of the FeCl-monoazaethioporphyrin complex exhibits reversed asymmetry at liquid helium temperature in comparison with the spectra of the remaining complexes i.e. the lower-energy component of the doublet is slightly more broadened than the higher-energy one. The spin-spin and spinlattice relaxation mechanisms in the context of quantum mechanically mixed spin states S = 5/2 + 3/2 of FeIII ions are considered as a source of the observed asymmetry.
    Źródło:
    Nukleonika; 2007, 52, supl. 1; 93-98
    0029-5922
    1508-5791
    Pojawia się w:
    Nukleonika
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of nitrogen substitution in porphyrin ring on Mössbauer parameters of iron ions
    Autorzy:
    Kaczmarzyk, T.
    Jackowski, T.
    Dziliński, K.
    Sinyakov, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/147210.pdf
    Data publikacji:
    2004
    Wydawca:
    Instytut Chemii i Techniki Jądrowej
    Tematy:
    Mössbauer spectroscopy
    iron porphyrins
    azaporphyrins
    trivalent-iron spin states
    Opis:
    Electron configuration changes of Fe(III) ions in porphyrin complexes with chloride axial ligands caused by the successive nitrogen substitution of CH methine bridges at meso positions of the porphyrin ring is discussed on the basis of Mössbauer spectroscopy results. It was shown that increase of a number of nitrogen atoms at the meso positions changes the character of quantum-mechanically mixed spin state of Fe(III) ions (S = 5/2 + 3/2) by the increase of the intermediate-spin (S = 3/2) contribution. This feature is reflected in Mössbauer spectra by an increase of quadrupole splitting values and the decrease of the asymmetry of quadrupole doublets, when the number of nitrogen atoms at the meso positions increases. Isomer shifts remain practically unchanged. These peculiarities are discussed in the light of spin relaxation mechanisms and the occupancy of d orbitals in Fe(III) ions coordinated to the porphyrin ring and chloride ligand. It has been noticed that Mössbauer parameters correlate qualitatively with EPR data.
    Źródło:
    Nukleonika; 2004, 49,suppl.3; 13-16
    0029-5922
    1508-5791
    Pojawia się w:
    Nukleonika
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Research on operational characteristics of tyres with run flat insert
    Autorzy:
    Motrycz, G.
    Stryjek, P.
    Jackowski, J.
    Wieczorek, M.
    Ejsmont, J.
    Ronowski, G.
    Sobieszczyk, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/246776.pdf
    Data publikacji:
    2012
    Wydawca:
    Instytut Techniczny Wojsk Lotniczych
    Tematy:
    transport
    vehicles
    VFI
    run flat
    military
    tyres
    run flat insert
    Opis:
    The paper describes results of research on heavy vehicle tyre with Run Flat VFI insert. The experiment has included the determination of heat generation, rolling resistance, and radial stiffness of two different tyre designs (textile and steel carcass). The results have been used for the purpose of evaluation of tyre operating characteristics. The study included research on non-inflated tyre properties. The purpose of the paper is to determine characteristics of the tyres equipped with inserts, which are essential for driving wheeled APCs. The inserts are composed of polymer rings mounted on the rims inside the tyres. If the inflation pressure of the tyre is very low or if there is no inflation pressure at all, the ring transfers the loads imposed on the tyre to the rim. Usually in such a case, there is a contact of the ring and inner surface of the tyre tread area. Laboratory facility for surveys of heavy vehicles tyres, summary characteristics of radial stiffness and hysteresis of test tyres, temperature distribution on the external surface of the test tyre, comparison of radial characteristics of the tyres tested, example of stiffness characteristics, distribution of temperature on the side of tyre during the road test and carcass damages on the flat tyre are presented in the paper.
    Źródło:
    Journal of KONES; 2012, 19, 3; 319-326
    1231-4005
    2354-0133
    Pojawia się w:
    Journal of KONES
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-12 z 12

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