Article
Biochemistry & Molecular Biology
Yulong Zhang, Rui Chen, Yan Dong, Jiabin Zhu, Kai Su, Jinsong Liu, Jinxin Xu
Summary: In this study, the crystal structures of the RH domains of SNX13 and SNX25 were determined, shedding light on their functions in protein sorting and GPCR signaling regulation. The study also revealed that RH domains do not have binding capacity towards Ga subunits.
JOURNAL OF MOLECULAR BIOLOGY
(2022)
Review
Cell Biology
Bulat R. Ramazanov, Mai Ly Tran, Julia von Blume
Summary: The sorting and export of secreted cargo proteins at the TGN is essential for cell communication and health, with recent studies revealing novel protein and lipid machinery involved in this process. Additionally, the interplay between TGN structure, dynamics, and contact sites with the endoplasmic reticulum plays a significant role in cargo sorting and export.
CURRENT OPINION IN CELL BIOLOGY
(2021)
Article
Biochemistry & Molecular Biology
Qian Zhang, Andrew J. Haak, Benita Sjogren
Summary: This study validates the inhibitory effect of regulator of G protein signaling 2 (RGS2) on uveal melanoma (UM) cell growth and suggests that this effect is dependent on the association between RGS2 and G alpha(q).
JOURNAL OF BIOLOGICAL CHEMISTRY
(2022)
Article
Biochemistry & Molecular Biology
Tarun Mahata, Abhishek Singh Sengar, Madhuri Basak, Kiran Das, Arnab Pramanick, Sumit Kumar Verma, Praveen Kumar Singh, Sayan Biswas, Subhasish Sarkar, Sudipta Saha, Suvro Chatterjee, Madhusudan Das, Adele Stewart, Biswanath Maity
Summary: RGS6 plays a critical role in non-alcoholic fatty liver disease by exacerbating oxidative stress and cell death, with inhibition providing a means to prevent or reverse liver damage.
Article
Immunology
Di Huang, Xueman Chen, Xin Zeng, Liyan Lao, Jiaqian Li, Yue Xing, Yiwen Lu, Qian Ouyang, Jianing Chen, Linbin Yang, Fengxi Su, Herui Yao, Qiang Liu, Shicheng Su, Erwei Song
Summary: Effective tumor control relies on inflammatory helper and cytotoxic T cells. The protein RGS1 negatively regulates effector T cell homing to tumors, leading to tumor immune evasion and decreased patient survival. Targeting RGS1 may offer a new strategy for tumor immunotherapy.
Article
Cell Biology
Ilenia Agliarulo, Seetharaman Parashuraman
Summary: This article discusses the central role of the Golgi apparatus in the mammalian secretory pathway and its regulation of plasma membrane biosynthesis through three distinct processes. It also explores the importance of the molecules involved in these processes in physiology and development, as well as how mutations in these molecules can lead to genetic diseases and cancer.
Article
Cell Biology
Marie E. Fina, Junling Wang, Pavan Vedula, Hsin-Yao Tang, Anna Kashina, Dawei W. Dong
Summary: This study demonstrates that G alpha t1, G beta 1, RGS6, and RGS7 undergo arginylation in the retina, and arginylation plays a direct role in regulating their protein levels and G-protein-mediated responses.
FRONTIERS IN CELL AND DEVELOPMENTAL BIOLOGY
(2022)
Review
Cell Biology
Yuichi Wakana, Felix Campelo
Summary: Membrane trafficking plays a crucial role in processing and transporting proteins and lipids, as well as in establishing cell compartmentation and tissue organization. The focus of this review is on a specific membrane trafficking route from the trans-Golgi network to the cell surface, highlighting the role of PKD-dependent pathway and membrane contact sites in this process. Additionally, the discussion includes various signaling pathways involved in regulating membrane trafficking, such as those mediated by PKD, GPCRs, growth factors, metabolites, and mechanosensors.
Article
Biochemistry & Molecular Biology
Michael J. Ziegler, Klaus Yserentant, Valentin Dunsing, Volker Middel, Antoni J. Gralak, Kaisa Pakari, Joern Bargstedt, Christoph Kern, Annett Petrich, Salvatore Chiantia, Uwe Strahle, Dirk-Peter Herten, Richard Wombacher
Summary: The agrochemical mandipropamid (Mandi) has been shown to be a highly efficient chemical inducer of protein proximity (CIP) in cell culture systems and living organisms, with high specificity and orthogonality. It is capable of rapid and efficient protein translocation and network manipulation.
NATURE CHEMICAL BIOLOGY
(2022)
Article
Multidisciplinary Sciences
Xiaofei Yang, Haopeng Yu, Susan Duncan, Yueying Zhang, Jitender Cheema, Haifeng Liu, J. Benjamin Miller, Jie Zhang, Chun Kit Kwok, Huakun Zhang, Yiliang Ding
Summary: This study analyzes the nucleotide composition of plant transcriptomes and their corresponding habitats, revealing that plants in cold climates have guanine-enriched transcriptomes that are prone to forming RNA G-quadruplex structures. The formation of RNA G-quadruplexes in response to cold enhances mRNA stability and promotes plant cold response.
NATURE COMMUNICATIONS
(2022)
Article
Biochemistry & Molecular Biology
Madhuri Basak, Kiran Das, Tarun Mahata, Dinesh Kumar, Nupur Nagar, Krishna Mohan Poluri, Pranesh Kumar, Priyadip Das, Adele Stewart, Biswanath Maity
Summary: Cardiotoxicity is a major drawback of anthracycline chemotherapeutics. This study demonstrates that upregulation of RGS7 and inflammatory markers in the hearts of chemotherapy patients, especially those with reduced left-ventricular function. Knockdown of RGS7 protects against doxorubicin-induced oxidative stress, NF-κB activation, inflammatory cytokine production, and cell death. RGS7 forms a complex with Tip60 and SIRT1, controls the acetylation status of NF-κB, and modulates cellular acetylation capacity, making it a potential therapeutic target for chemotherapy-induced cardiotoxicity.
CELLULAR AND MOLECULAR LIFE SCIENCES
(2023)
Article
Immunology
Serena Li-Sue Yan, Il-Young Hwang, Olena Kamenyeva, Juraj Kabat, Ji Sung Kim, Chung Park, John H. Kehrl
Summary: This study demonstrates the critical role of RGS protein/G alpha(i) interactions in shaping neutrophil responses to chemoattractant receptor activation. Mutant neutrophils with disabled RGS protein-G alpha(i2) interactions show impaired trafficking and inflammatory responses, providing insights into the importance of these interactions in normal neutrophil function.
FRONTIERS IN IMMUNOLOGY
(2021)
Article
Biochemistry & Molecular Biology
Clinita E. Randolph, Morgan B. Dwyer, Jenna L. Aumiller, Alethia J. Dixon, Asuka Inoue, Patrick Osei-Owusu, Philip B. Wedegaertner
Summary: Heterotrimeric G proteins are proteins that link activated G protein coupled receptors (GPCRs) to intracellular signaling pathways. YM-254890 (YM) inhibits both GPCR-activated WT alpha q and GPCR-independent alpha qQ209L signaling. YM promotes a redistribution of alpha qQ209L from the plasma membrane to the cytoplasm. Changes in membrane binding impact the ability of YM to inhibit alpha qQ209L, and YM contributes to inhibition of alpha qQ209L by promoting its relocalization.
JOURNAL OF BIOLOGICAL CHEMISTRY
(2022)
Article
Plant Sciences
Chuanliang Liu, Yonglun Zeng, Hongbo Li, Chao Yang, Wenjin Shen, Min Xu, Zhidan Xiao, Tongsheng Chen, Baiying Li, Wenhan Cao, Liwen Jiang, Marisa S. Otegui, Caiji Gao
Summary: The study identified FYVE4 as a novel plant endosomal regulator, functioning in the ESCRT pathway to regulate MVE biogenesis.
Article
Plant Sciences
Qingkai Feng, Liping Li, Yan Liu, Xingfeng Shao, Xiaohui Li
Summary: The study demonstrates that plant hormone jasmonic acid can increase myrosinase enzyme activity, protecting plants from pathogens and insect pests. Transcription factor FAMA interacts with a series of proteins to mediate JA-induced myrosinase activity in plants.