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Multidisciplinary Sciences
Aytuel Uzun Akgeyik, Emine Yalcin, Kueltigin Cavusoglu
Summary: This study investigated the phytochemical content and biological activities of raw and heat-treated extracts of Ornithogalum umbellatum. The results showed that heat treatment significantly affected the phytochemical content and biological activities of O. umbellatum, leading to a decrease in major compound levels and loss of certain activities.
SCIENTIFIC REPORTS
(2023)
Article
Neurosciences
Eric S. Sweet, Keith R. Lange, Madeleine R. Fenner, Chia-Yi Tseng, Barbara F. Akum, Bonnie L. Firestein
Summary: Cypin is a multifunctional protein that plays a major role in shaping the morphology of dendritic arbor of neurons. It catalyzes the deamination of guanine, leading to the polymerization of microtubules. Cypin binds to microtubule heterodimers and facilitates their polymerization. Overexpression of Cypin results in decreased spacing between microtubules.
MOLECULAR AND CELLULAR NEUROSCIENCE
(2022)
Article
Biochemistry & Molecular Biology
Shintaroh Kubo, Shun Kai Yang, Corbin S. Black, Daniel Dai, Melissa Valente-Paterno, Jacek Gaertig, Muneyoshi Ichikawa, Khanh Huy Bui
Summary: Cilia are thin microtubule-based protrusions found in eukaryotic cells, responsible for propelling the movement of ciliated protists and sperm cells, as well as facilitating mucus flow in the trachea to protect the human body from viral infections. The main force generators of ciliary beating are the outer dynein arms (ODAs), which attach to the doublet microtubules and induce bending through conformational changes driven by ATP hydrolysis. The structure of the native ODA complex attached to the doublet microtubule has been revealed through cryo-electron microscopy, showing how the ODA complex is attached to the doublet microtubule via the docking complex in its native state, leading to remodeling and activation.
Article
Cell Biology
Di Ma, Binbin Deng, Chao Sun, David W. McComb, Chen Gu
Summary: This study investigates the formation mechanism of axonal varicosities using confocal microscopy and cryo-electron tomography. The results reveal that non-uniform mechanical interactions can lead to significant diameter variation in axons, and bundling axons reduces the level of varicosities.
Article
Biochemistry & Molecular Biology
Lei Diao, Wei Zheng, Qiaoyu Zhao, Mingyi Liu, Zhenglin Fu, Xu Zhang, Lan Bao, Yao Cong
Summary: This study purified recombinant tubulin heterodimers composed of different mouse α-tubulin isotypes and β-tubulin isotype and determined their structures. The results showed that the combination of different α-tubulin isotypes can affect microtubule structures, providing evidence for the tubulin code hypothesis.
ACTA BIOCHIMICA ET BIOPHYSICA SINICA
(2023)
Article
Cell Biology
Peng Bai, Wei Yan, Jianhong Yang
Summary: This study discovered that cevipabulin induces an abnormal tubulin morphology by binding to both the Vinblastine site and The Seventh site. The study also explored the effects of other drugs on tubulin morphology and proposed a potential mechanism.
Review
Biochemistry & Molecular Biology
Michel Goedert
Summary: Electron cryo-microscopy has enabled the determination of near-atomic structures of tau filaments from the human brain. Different types of tau proteins exhibit distinct folding patterns, sharing the presence of microtubule-binding repeats.
MOLECULAR MECHANISMS OF NEURODEGENERATION
(2021)
Article
Operations Research & Management Science
Stephane Barde, Young Myoung Ko, Hayong Shin
Summary: Recently, there has been a focus on modeling non-monotonic hazard functions, and a general EM algorithm is proposed to fit these complex hazard functions.
OPERATIONS RESEARCH LETTERS
(2022)
Article
Microscopy
Dariusz Stepinski, Maria Kwiatkowska, Katarzyna Poplonska, Justyna T. Polit, Agnieszka Wojtczak, Eva Dominguez, Antonio Heredia
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Plant Sciences
Dariusz Stepinski, Maria Kwiatkowska, Agnieszka Wojtczak, Eva Dominguez, Antonio Heredia, Katarzyna Poplonska
PHYSIOLOGIA PLANTARUM
(2017)
Article
Plant Sciences
M. Kwiatkowska, D. Stepinski, K. Poplonska, A. Wojtczak, J. Polit
ACTA PHYSIOLOGIAE PLANTARUM
(2010)
Article
Plant Sciences
Maria Kwiatkowska, Justyna Teresa Polit, Katarzyna Poplonska, Dariusz Stepinski, Agnieszka Wojtczak
ACTA PHYSIOLOGIAE PLANTARUM
(2013)
Article
Cell Biology
Maria Kwiatkowska, Katarzyna Poplonska, Agnieszka Wojtczak, Dariusz Stepinski, Justyna Teresa Polit
CELL BIOLOGY INTERNATIONAL
(2012)
Article
Biochemistry & Molecular Biology
Maria Kwiatkowska, Dariusz Stepinski, Justyna T. Polit, Katarzyna Poplonska, Agnieszka Wojtczak
FOLIA HISTOCHEMICA ET CYTOBIOLOGICA
(2011)
Article
Biochemistry & Molecular Biology
Maria Kwiatkowska, Dariusz Stepinski, Katarzyna Poplonska, Agnieszka Wojtczak, Justyna T. Polit
FOLIA HISTOCHEMICA ET CYTOBIOLOGICA
(2012)
Article
Plant Sciences
Maria Kwiatkowska, Justyna T. Polit, Dariusz Stepinski, Katarzyna Poplonska, Agnieszka Wojtczak, Eva Dominguez, Antonio Heredia
JOURNAL OF EXPERIMENTAL BOTANY
(2015)
Article
Plant Sciences
A. Wojtczak, K. Poplonska, M. Kwiatkowska
Article
Plant Sciences
Katarzyna Poplonska
Article
Plant Sciences
Maria Kwiatkowska, Agnieszka Wojtczak, Katarzyna Poplonska, Justyna Teresa Polit, Dariusz Stepinski, Eva Dominguez, Antonio Heredia
Review
Cell Biology
Dariusz Stepinski, Maria Kwiatkowska, Agnieszka Wojtczak, Justyna Teresa Polit, Eva Dominguez, Antonio Heredia, Katarzyna Poplonska
Article
Cell Biology
Zdzislawa Romanowska-Duda, Krzysztof Piotrowski, Dariusz Stepinski, Katarzyna Poplonska
Summary: An innovative method of managing ash waste from biomass combustion was studied. The research aimed to determine the fertilizer value of ash from Sorghum combustion and its effects on Lemnaceae plants. The use of ash in the in vitro cultivation of Lemnaceae plants showed a dose-dependent effect, with 2% ash improving various physiological parameters. However, a high concentration of 10% ash adversely affected plant development. The use of low concentrations of ash positively influenced the yielding of Spirodela polyrrhiza.
Article
Plant Sciences
Maria Kwiatkowska, Dariusz Stepinski, Katarzyna Poplonska, Agnieszka Wojtczak, Justyna Teresa Polit
ACTA SOCIETATIS BOTANICORUM POLONIAE
(2011)