Search Results - "Stępień, P"

Water relations and photosynthesis in Cucumis sativus L. leaves under salt stress by Stepien, P, Klbus, G

“…Hydroponically grown cucumber plants were exposed to 14-d period of salinity (0, 50, 100 mM NaCl). NaCl caused reduction in the relative water content in the…”
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Off-axis image plane hologram compression in holographic tomography - metrological assessment by Muhamad, R K, Stępień, P, Kujawińska, M, Schelkens, P

“…In this paper, we present a novel study on the impact of lossy data compression on the metrological properties of holographic tomography reconstruction of the…”
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Spatial bandwidth-optimized compression of image plane off-axis holograms with image and video codecs by Stępień, P., Muhamad, R. K., Blinder, D., Schelkens, P., Kujawińska, M.

“…Image plane off-axis holograms (IP-OAH) are the most common data captured in digital holographic microscopy and tomography. Due to increasing storage and data…”
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Human SUV3 helicase regulates growth rate of the HeLa cells and can localize in the nucleoli by Szewczyk, Maciej, Fedoryszak-Kuśka, Natalia, Tkaczuk, Katarzyna, Dobrucki, Jurek, Waligórska, Agnieszka, Stępień, Piotr P

“…The human SUV3 helicase (SUV3, hSUV3, SUPV3L1) is a DNA/RNA unwinding enzyme belonging to the class of DexH-box helicases. It localizes predominantly in the…”
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Fitting MAS NMR spectra in crystals with local disorder: Czjzek's vs. Maurer's model for 11B and 71Ga in polycrystalline gallium borate by Seleznyova, K., Sergeev, N.A., Olszewski, M., Stępień, P., Yagupov, S.V., Strugatsky, M.B., Kliava, J.

“…A comparative analysis of the Czjzek's and Maurer's models of the joint distribution density of NMR quadrupole parameters has been carried out in view of their…”
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Fitting MAS NMR spectra in crystals with local disorder: Czjzek's vs. Maurer's model for 11 B and 71 Ga in polycrystalline gallium borate by Seleznyova, K, Sergeev, N A, Olszewski, M, Stępień, P, Yagupov, S V, Strugatsky, M B, Kliava, J

“…A comparative analysis of the Czjzek's and Maurer's models of the joint distribution density of NMR quadrupole parameters has been carried out in view of their…”
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(11)B MAS NMR study of Ga1-xFexBO3 mixed crystals by Seleznyova, K, Sergeev, N A, Olszewski, M, Stępień, P, Yagupov, S V, Strugatsky, M B, Kliava, J

“…Mixed iron-gallium borate crystals Ga1-xFexBO3 have been studied by Magic Angle Spinning (MAS) NMR of (11)B isotope. Experimental MAS NMR spectra have been…”
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Munc18-1 is crucial to overcome the inhibition of synaptic vesicle fusion by αSNAP by Stepien, Karolina P., Prinslow, Eric A., Rizo, Josep

“…Munc18-1 and Munc13-1 orchestrate assembly of the SNARE complex formed by syntaxin-1, SNAP-25 and synaptobrevin, allowing exquisite regulation of…”
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Human mitochondrial RNA decay mediated by PNPase-hSuv3 complex takes place in distinct foci by Borowski, Lukasz S, Dziembowski, Andrzej, Hejnowicz, Monika S, Stepien, Piotr P, Szczesny, Roman J

“…RNA decay is usually mediated by protein complexes and can occur in specific foci such as P-bodies in the cytoplasm of eukaryotes. In human mitochondria…”
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Dedicated surveillance mechanism controls G-quadruplex forming non-coding RNAs in human mitochondria by Pietras, Zbigniew, Wojcik, Magdalena A., Borowski, Lukasz S., Szewczyk, Maciej, Kulinski, Tomasz M., Cysewski, Dominik, Stepien, Piotr P., Dziembowski, Andrzej, Szczesny, Roman J.

“…The GC skew in vertebrate mitochondrial genomes results in synthesis of RNAs that are prone to form G-quadruplexes (G4s). Such RNAs, although mostly…”
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Mitochondrial biogenesis and neural differentiation of human iPSC is modulated by idebenone in a developmental stage-dependent manner by Augustyniak, J., Lenart, J., Zychowicz, M., Stepien, P. P., Buzanska, L.

“…Idebenone, the synthetic analog of coenzyme Q10 can improve electron transport in mitochondria. Therefore, it is used in the treatment of Alzheimer’s disease…”
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Multiple factors maintain assembled trans-SNARE complexes in the presence of NSF and αSNAP by Prinslow, Eric A, Stepien, Karolina P, Pan, Yun-Zu, Xu, Junjie, Rizo, Josep

“…Neurotransmitter release requires formation of trans-SNARE complexes between the synaptic vesicle and plasma membranes, which likely underlies synaptic vesicle…”
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Reference Gene Validation via RT–qPCR for Human iPSC-Derived Neural Stem Cells and Neural Progenitors by Augustyniak, Justyna, Lenart, Jacek, Lipka, Gabriela, Stepien, Piotr P., Buzanska, Leonora

“…Correct selection of the reference gene(s) is the most important step in gene expression analysis. The aims of this study were to identify and evaluate the…”
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Open syntaxin overcomes exocytosis defects of diverse mutants in C. elegans by Tien, Chi-Wei, Yu, Bin, Huang, Mengjia, Stepien, Karolina P., Sugita, Kyoko, Xie, Xiaoyu, Han, Liping, Monnier, Philippe P., Zhen, Mei, Rizo, Josep, Gao, Shangbang, Sugita, Shuzo

“…Assembly of SNARE complexes that mediate neurotransmitter release requires opening of a ‘closed’ conformation of UNC-64/syntaxin. Rescue of unc-13/Munc13…”
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Molecular machinery turns full circle by Rizo, Josep, Jaczynska, Klaudia, Stepien, Karolina P

“…Two proteins called Sec17 and Sec18 may have a larger role in membrane fusion than is commonly assumed in textbook models…”
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Sensitivity of hiPSC-derived neural stem cells (NSC) to Pyrroloquinoline quinone depends on their developmental stage by Augustyniak, J., Lenart, J., Zychowicz, M., Lipka, G., Gaj, P., Kolanowska, M., Stepien, P.P., Buzanska, L.

“…Pyrroloquinoline quinone (PQQ) is a factor influencing on the mitochondrial biogenesis. In this study the PQQ effect on viability, total cell number,…”
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Human mitochondrial RNA turnover caught in flagranti: involvement of hSuv3p helicase in RNA surveillance by Szczesny, Roman J, Borowski, Lukasz S, Brzezniak, Lien K, Dmochowska, Aleksandra, Gewartowski, Kamil, Bartnik, Ewa, Stepien, Piotr P

“…The mechanism of human mitochondrial RNA turnover and surveillance is still a matter of debate. We have obtained a cellular model for studying the role of…”
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Developmental stage dependent neural stem cells sensitivity to methylmercury chloride on different biofunctional surfaces by Zychowicz, M., Dziedzicka, D., Mehn, D., Kozlowska, H., Kinsner-Ovaskainen, A., Stępień, P.P., Rossi, F., Buzanska, L.

“…•Vulnerability of HUCB-NSC to MeHg is developmentally related and cell type specific.•Cell type specific response of HUCB-NSC to MeHg vary on different…”
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Synaptotagmin-1–, Munc18-1–, and Munc13-1–dependent liposome fusion with a few neuronal SNAREs by Stepien, Karolina P., Rizo, Josep

“…Neurotransmitter release is governed by eight central proteins among other factors: the neuronal SNAREs syntaxin-1, synaptobrevin, and SNAP-25, which form a…”
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The yeast mitochondrial degradosome. Its composition, interplay between RNA helicase and RNase activities and the role in mitochondrial RNA metabolism by Dziembowski, Andrzej, Piwowarski, Jan, Hoser, Rafal, Minczuk, Michal, Dmochowska, Aleksandra, Siep, Michel, van der Spek, Hans, Grivell, Les, Stepien, Piotr P

“…The yeast mitochondrial degradosome (mtEXO) is an NTP-dependent exoribonuclease involved in mitochondrial RNA metabolism. Previous purifications suggested that…”
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