The chick embryo is a powerful model for experimental embryology due to its accessibility, sturdiness, and ease of manipulation. Here we describe protocols for analysis of protein-DNA and protein-protein interactions in tissues and cells isolated from the developing chick. These assays are aimed at the identification of interactions between transcription factors and regulatory elements in the genome, and, in combination with functional assays, can be used for the delineation of gene regulatory circuits.
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http://dx.doi.org/10.1007/978-1-4939-9009-2_7 | DOI Listing |
J Med Chem
January 2025
Jiangsu Key Laboratory of Drug Design and Optimization and State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China.
Targeting the WDR5-MLL1 protein-protein interaction (PPI) is considered to be an effective approach for the treatment of MLL-rearranged leukemia. However, interfering with WDR5-MLL1 PPI reduces methylated H3K4 levels and induces a decline in acetylated H3 levels, which may contribute to the suboptimal cellular efficacy of WDR5 inhibitors. We observed that cotreatment with WDR5-MLL1 PPI and HDAC inhibitors augmented the antiproliferative effect in MV-4-11 cells.
View Article and Find Full Text PDFMolecules
December 2024
Institute of Chemistry, University of Campinas UNICAMP, Campinas 13083-862, SP, Brazil.
HSP70 chaperones play pivotal roles in facilitating protein folding, refolding, and disaggregation through their binding and releasing activities. This intricate process is further supported by J-domain proteins (JDPs), also known as DNAJs or HSP40s, which can be categorized into classes A and B. In yeast, these classes are represented by Ydj1 and Sis1, respectively.
View Article and Find Full Text PDFElife
January 2025
Department of Molecular and Cell Biology, Berkeley, United States.
Type II nuclear receptors (T2NRs) require heterodimerization with a common partner, the retinoid X receptor (RXR), to bind cognate DNA recognition sites in chromatin. Based on previous biochemical and overexpression studies, binding of T2NRs to chromatin is proposed to be regulated by competition for a limiting pool of the core RXR subunit. However, this mechanism has not yet been tested for endogenous proteins in live cells.
View Article and Find Full Text PDFInt J Mol Sci
December 2024
Department of Zoology, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand.
Atopic dermatitis (AD), a prevalent allergic skin condition in children, has been closely associated with imbalances in the gut microbiome. To investigate these microbial alterations and their functional implications, we investigated protein expression, functions and interactions of the gut bacteriome and mycobiome as well as the human proteome in Thai infants with AD using integrative metaproteomic and host interaction analysis. As we observed, probiotic species, such as and , were reduced in abundance in the AD group while key pathogenic bacteria and fungi, such as and , increased in abundance.
View Article and Find Full Text PDFInt J Mol Sci
December 2024
Institute of Biomedicine (iBiMED), Department of Medical Sciences, University of Aveiro, 3810-193 Aveiro, Portugal.
The nuclear envelope (NE), a protective membrane bordering the nucleus, is composed of highly specialized proteins that are indispensable for normal cellular activity. Lamina-associated polypeptide 1 (LAP1) is a NE protein whose functions are just beginning to be unveiled. The fact that mutations causing LAP1 deficiency are extremely rare and pathogenic is indicative of its paramount importance to preserving human health, anticipating that LAP1 might have a multifaceted role in the cell.
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