Article
Cell Biology
Shinya Takahata, Saori Chida, Aoi Ohnuma, Motoyoshi Ando, Takahiro Asanuma, Yota Murakami
Summary: In heterochromatin, Spt16 recruitment is mediated by Pob3 and HP1/Swi6. Pob3 recruits Spt16 through its Spt16 dimerization and PH domains, while HP1/Swi6 recruits Spt16 through physical interaction of the Swi6 CSD and Spt16 peptidase-like domains.
Article
Biochemistry & Molecular Biology
Min Zhang, Fan Zheng, Yujie Xiong, Chen Shao, Chengliang Wang, Minhao Wu, Xiaojia Niu, Fenfen Dong, Xuan Zhang, Chuanhai Fu, Jianye Zang
Summary: Our study demonstrates that the interaction of spMis18 with histone H2A-H2B and DNA is crucial for the recruitment of spMis18 and Cnp1 to the centromere in fission yeast. Mutations in the acidic region and deletion of the extreme C-terminus of spMis18 significantly affect its localization and delay chromosome segregation during mitosis, indicating the importance of these interactions in faithful chromosome segregation.
CELLULAR AND MOLECULAR LIFE SCIENCES
(2021)
Article
Biology
Amila Suraweera, Neha S. Gandhi, Sam Beard, Joshua T. Burgess, Laura V. Croft, Emma Bolderson, Ali Naqi, Nicholas W. Ashton, Mark N. Adams, Kienan I. Savage, Shu-Dong Zhang, Kenneth J. O'Byrne, Derek J. Richard
Summary: COMMD4 plays a critical role in maintaining genomic stability by regulating chromatin structure during repair of double-stranded DNA breaks through interacting with histone H2A-H2B.
COMMUNICATIONS BIOLOGY
(2021)
Article
Multidisciplinary Sciences
Nathan J. VanDusen, Julianna Y. Lee, Weiliang Gu, Catalina E. Butler, Isha Sethi, Yanjiang Zheng, Justin S. King, Pingzhu Zhou, Shengbao Suo, Yuxuan Guo, Qing Ma, Guo-Cheng Yuan, William William Pu
Summary: The study utilized in vivo somatic Cas9 mutagenesis in mice to conduct a forward genetic screen for regulators of cardiomyocyte maturation, identifying transcriptional regulators such as RNF20 and RNF40. Mechanistic studies showed that these regulators control dynamic gene expression changes essential for cardiomyocyte maturation.
NATURE COMMUNICATIONS
(2021)
Article
Multidisciplinary Sciences
Anfeng Luo, Jingwei Kong, Jun Chen, Xue Xiao, Jie Lan, Xiaorong Li, Cuifang Liu, Peng-Ye Wang, Guohong Li, Wei Li, Ping Chen
Summary: This study reveals the mechanism of direct collaboration between ubH2B and FACT at the nucleosome level. The researchers found that ubH2B impairs nucleosome stability and recruits FACT by enhancing its binding on the nucleosome. FACT preferentially binds and deposits H2A-ubH2B dimers to form an intact nucleosome. The stable altered nucleosome state obtained by ubH2B and FACT provides a key platform for gene transcription, as shown by genome-wide and time-course ChIP-qPCR analyses.
NATURE COMMUNICATIONS
(2023)
Article
Cell Biology
Han-Wen Chang, Alexey Feofanov, Alexander Lyubitelev, Grigory A. Armeev, Elena Y. Kotova, Fu-Kai Hsieh, Mikhail P. Kirpichnikov, Alexey K. Shaytan, Vasily M. Studitsky
Summary: Histone N-terminal tails and their post-translational modifications have specific effects on biological processes. In this study, the role of the N-terminal tails of histones H2A/H2B in transcription through chromatin was analyzed. The tail of histone H2B was found to affect nucleosome stability and its function requires the presence of the N-tail of histone H2A. The histone chaperone FACT also plays a role in transcription through nucleosomes.
Article
Biochemistry & Molecular Biology
Xuehui Li, Huiyan Li, Qian Jing, Mengxue Wang, Tingting Hu, Li Li, Qiuping Zhang, Mengxin Liu, Yu Vincent Fu, Junhong Han, Dan Su
Summary: hSSRP1 is an essential component of the facilitates chromatin transcription complex, with multiple functions such as nuclear localization, histone chaperone activity, DNA binding, and interaction with cellular proteins. The study provides insights into the structural basis for hSSRP1 functionality.
JOURNAL OF BIOLOGICAL CHEMISTRY
(2021)
Article
Biochemistry & Molecular Biology
Xuezheng Wang, Yuantao Tang, Jiawei Xu, He Leng, Guojun Shi, Zaifeng Hu, Jiale Wu, Yuwen Xiu, Jianxun Feng, Qing Li
Summary: This study uncovers a new mechanism for parental histone recycling, revealing the important role of histone chaperone FACT and its N-terminus of the Spt16 subunit in budding yeast. The Spt16-N domain interacts with the replicative helicase MCM2-7, facilitating the formation of a critical ternary complex for efficient parental histone recycling and transfer to the lagging strand.
NUCLEIC ACIDS RESEARCH
(2023)
Article
Biochemical Research Methods
Guangqi Chen, Jiafen Cheng, Hanjie Yu, Xiao Huang, Hui Bao, Ling Qin, Ling Wang, Yaxiang Song, Xinying Liu, Ai Peng
Summary: Gout is a type of immunoreactive arthritis based on hyperuricemia, and plasma protein profiling can distinguish different groups of gout patients. Certain proteins such as histones and coagulation cascades may play important roles in the process of gout.
Article
Biochemistry & Molecular Biology
Fritz Nagae, Shoji Takada, Tsuyoshi Terakawa
Summary: In this study, researchers found that partial unwrapping of a nucleosome by an RNA polymerase significantly facilitates the dismantling of an H2A/H2B dimer from the nucleosome by Nap1. The results also revealed the molecular mechanisms of Nap1 functions, in which the highly acidic C-terminal flexible tails of Nap1 contribute to the binding of H2A/H2B. These findings have important implications for understanding how histone chaperones process nucleosomes upon collisions with translocases.
NUCLEIC ACIDS RESEARCH
(2023)
Article
Multidisciplinary Sciences
Yue Liang, Garvit Bhatt, Lin Tze Tung, HanChen Wang, Joo Eun Kim, Marwah Mousa, Viktoria Plackoska, Katalin Illes, Anna A. Georges, Philippe Gros, Linda Henneman, Ivo J. Huijbers, Bhushan Nagar, Anastasia Nijnik
Summary: MYSM1 is a chromatin binding protein with deubiquitinase activity. Rare mutations in MYSM1 cause an inherited bone marrow failure syndrome. In a mouse model, the catalytic activity of MYSM1 was found to be critical for hematopoiesis and leukocyte development.
SCIENTIFIC REPORTS
(2023)
Review
Biochemistry & Molecular Biology
Nathan Gamarra, Geeta J. Narlikar
Summary: The review focuses on the mechanisms of transcription on chromatin templates, proposing that transcription is accomplished by the collaborative activities of RNA polymerase's nucleosome disrupting activity and ATP-dependent chromatin remodeling motors. Further investigation into how these two motors combine their basic activities is essential in clarifying the interdependent relationship between genome structure and transcription.
JOURNAL OF MOLECULAR BIOLOGY
(2021)
Article
Cell Biology
Anastasiia S. Kniazeva, Grigoriy A. Armeev, Alexey K. Shaytan
Summary: The article discusses the composition of the protein core of the nucleosome and the role of H2A-H2B histones in the structure and dynamics of the nucleosome. Through molecular dynamics simulations, it was found that the bending dynamics of the H2A-H2B dimer are modulated by various factors, shedding light on the dynamic mechanisms of nucleosome functioning.
Article
Cell Biology
Haining Zhou, Wenzhi Feng, Juntao Yu, Tiasha A. Shafiq, Joao A. Paulo, Jiuchun Zhang, Zhenhua Luo, Steven P. Gygi, Danesh Moazed
Summary: The rixosome and PRC1 silencing complexes are associated with deSUMOylating and deubiquitinating enzymes, SENP3 and USP7, respectively. The enzymatic activities of SENP3 and USP7 are required for silencing of Polycomb target genes. SUMOylation and ubiquitination regulate the assembly and activities of the rixosome and Polycomb complexes.
Article
Multidisciplinary Sciences
Ava M. Boston, Abdulrahman M. Dwead, Marwah M. Al-Mathkour, Kezhan Khazaw, Jin Zou, Qiang Zhang, Guangdi Wang, Bekir Cinar
Summary: The Polycomb group protein SCML2 and the transcriptional cofactor YAP1 interact with each other and cooperatively regulate cell growth and behavior through the coordination of chromatin modifications and transcriptional programs.
Article
Chemistry, Multidisciplinary
Martin Spinck, Petra Neumann-Staubitz, Maria Ecke, Raphael Gasper, Heinz Neumann
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2020)
Article
Multidisciplinary Sciences
Neha Jain, Davide Tamborrini, Brian Evans, Shereen Chaudhry, Bryan J. Wilkins, Heinz Neumann
Editorial Material
Cell Biology
Christian Hoffmann, Dragomir Milovanovic
Article
Chemistry, Medicinal
Martin Spinck, Matthias Bischoff, Philipp Lampe, Franz-Josef Meyer-Almes, Sonja Sievers, Heinz Neumann
Summary: Sirtuins serve as signaling hubs in cellular response to stress and play vital roles in major civilization diseases. A new study has identified a more efficient and selective SirT1 inhibitor called Sosbo, which shows promise in the treatment of diseases like cancer, Huntington's chorea, and anorexia by targeting specific cellular pathways.
JOURNAL OF MEDICINAL CHEMISTRY
(2021)
Article
Biochemistry & Molecular Biology
Christian Hoffmann, Roberto Sansevrino, Giuseppe Morabito, Chinyere Logan, R. Martin Vabulas, Ayse Ulusoy, Marcelo Ganzella, Dragomir Milovanovic
Summary: The regulation of neurotransmission relies on the interaction between synapsin and alpha-synuclein, with the presence of synaptic vesicles enhancing their condensation into functional clusters. The molar ratio between synapsin and alpha-synuclein is crucial for the formation of these clusters and understanding their molecular mechanisms is important for clarifying the pathogenesis of synucleinopathies.
JOURNAL OF MOLECULAR BIOLOGY
(2021)
Correction
Cell Biology
Christian Hoffmann, Dragomir Milovanovic
Article
Cell Biology
Franziska Trnka, Christian Hoffmann, Han Wang, Roberto Sansevrino, Branislava Rankovic, Benjamin R. Rost, Dietmar Schmitz, H. Broder Schmidt, Dragomir Milovanovic
Summary: Research suggests that high expression levels play a dominant role in determining the fraction of cells with soluble or aggregated FUS, whether wild-type or mutant. Chemically induced FUS aggregates recruit LAMP1-positive structures, while mature, acidic lysosomes only accumulate at FUS aggregates but not at liquid condensates.
FRONTIERS IN CELL AND DEVELOPMENTAL BIOLOGY
(2021)
Review
Materials Science, Biomaterials
Petra Neumann-Staubitz, Michael Lammers, Heinz Neumann
Summary: Lysine acylation is a widespread protein modification that influences protein function, but the majority of acylation sites are not yet characterized. Semi-synthetic methods and genetic code expansion techniques can aid in studying these modifications and discovering their potential applications in various fields.
Article
Immunology
Kiara Freitag, Nele Sterczyk, Sarah Wendlinger, Benedikt Obermayer, Julia Schulz, Vadim Farztdinov, Michael Muelleder, Markus Ralser, Judith Houtman, Lara Fleck, Caroline Braeuning, Roberto Sansevrino, Christian Hoffmann, Dragomir Milovanovic, Stephan J. Sigrist, Thomas Conrad, Dieter Beule, Frank L. Heppner, Marina Jendrach
Summary: The study found that spermidine can reduce neurotoxic soluble A beta and decrease AD-associated neuroinflammation in amyloid prone AD-like APPPS1 mice, mainly targeting AD-associated microglia and affecting cell migration and phagocytosis gene expression.
JOURNAL OF NEUROINFLAMMATION
(2022)
Review
Neurosciences
Roberto Sansevrino, Christian Hoffmann, Dragomir Milovanovic
Summary: Neuronal communication relies on the exocytosis of neurotransmitters from clustered synaptic vesicles (SVs) at synapses. Synapsin 1, an abundant SV-associated phosphoprotein, has been established to be responsible for the clustering of SVs through protein-protein interactions. Recent studies have discovered that synapsins can cluster SVs through liquid-liquid phase separation (LLPS), presenting a new framework for understanding synaptic organization. This article discusses the evidence for SV phase separation and raises questions regarding its regulation, specificity, and reversibility.
TRENDS IN NEUROSCIENCES
(2023)
Article
Immunology
Isabel Buenger, Konstantin L. Makridis, Jakob Kreye, Marc Nikolaus, Eva Sedlin, Tim Ullrich, Christian Hoffmann, Johannes Vincent Tromm, Helle Foverskov Rasmussen, Dragomir Milovanovic, Markus Hoeltje, Harald Pruess, Angela M. Kaindl
Summary: Maternal autoantibodies can be transmitted diaplacentally and may have deleterious effects on neurodevelopment. The presence of SYN1 autoantibodies in mothers is associated with an increased risk for intellectual disability and behavioral problems in their children. Additionally, children with SYN1 autoantibodies more frequently exhibit epilepsy, macrocephaly, and developmental delay.
FRONTIERS IN IMMUNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Christian Hoffmann, Gennadiy Murastov, Johannes Vincent Tromm, Jean-Baptiste Moog, Muhammad Awais Aslam, Aleksandar Matkovic, Dragomir Milovanovic
Summary: In this study, graphene-based sensors were used to investigate the electrostatic properties of synapsin condensates. It was found that synapsin condensates generate strong electrical responses when in contact with graphene, and this electrical response is caused by the formation of an electric double layer between the condensates and graphene.
Article
Multidisciplinary Sciences
Christian Hoffmann, Jakob Rentsch, Taka A. Tsunoyama, Akshita Chhabra, Gerard Aguilar Perez, Rajdeep Chowdhury, Franziska Trnka, Aleksandr A. Korobeinikov, Ali H. Shaib, Marcelo Ganzella, Gregory Giannone, Silvio O. Rizzoli, Akihiro Kusumi, Helge Ewers, Dragomir Milovanovic
Summary: Neuronal transmission relies on the secretion of neurotransmitters, which are packed in synaptic vesicles (SVs). This study shows that the condensation of synapsin 1 is sufficient to ensure the reliable confinement and motility of SVs, facilitating neurotransmitter release.
NATURE COMMUNICATIONS
(2023)
Article
Immunology
Isabel Buenger, Ivan Talucci, Jakob Kreye, Markus Hoeltje, Konstantin L. Makridis, Helle Foverskov Rasmussen, Scott van Hoof, Cesar Cordero-Gomez, Tim Ullrich, Eva Sedlin, Kai Oliver Kreissner, Christian Hoffmann, Dragomir Milovanovic, Paul Turko, Friedemann Paul, Jessica Meckies, Stefan Verlohren, Wolfgang Henrich, Rabih Chaoui, Hans Michael Maric, Angela M. Kaindl, Harald Pruess
Summary: This study found that synapsin-I autoantibodies produced during pregnancy may have detrimental effects on fetal development and are closely associated with developmental abnormalities and neuropsychiatric developmental disorders.
BRAIN BEHAVIOR & IMMUNITY-HEALTH
(2023)
Article
Biochemistry & Molecular Biology
Neha Jain, Petra Janning, Heinz Neumann
Summary: During mitosis, chromosome compaction is facilitated by the presence of centromere and the action of Aurora B kinase, mediated by Hst2 and Bmh1 proteins. This mechanism helps differentiate chromosomal DNA from non-centromeric DNA, maintaining the compact state of chromosomes.
JOURNAL OF BIOLOGICAL CHEMISTRY
(2021)