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Tong Liu et al.
Molecular pharmaceutics, 16(7), 2872-2883 (2019-06-01)
Although the prognosis of patients with breast cancer continues to improve, breast cancer metastasis to bones remains high in incidence and challenging to manage. Here, we report the development of bone-homing alendronate (ALN)-anchored biodegradable polymeric micelles for the targeted treatment
Kathleen R Stewart-Morgan et al.
Molecular cell, 75(2), 284-297 (2019-05-28)
DNA replication is highly disruptive to chromatin, leading to eviction of nucleosomes, RNA polymerase, and regulatory factors. When and how transcription resumes on DNA following DNA replication is unknown. Here we develop a replication-coupled assay for transposase-accessible chromatin (repli-ATAC-seq) to
J Daniel Griffin et al.
Biomacromolecules, 20(5), 2115-2122 (2019-04-19)
Antigen valency plays a fundamental role in directing the nature of an immune response to be stimulatory or tolerogenic. Soluble antigen arrays (SAgAs) are an antigen-specific immunotherapy that combats autoimmunity through the multivalent display of autoantigen. Although mechanistic studies have
Vu Hong et al.
Bioconjugate chemistry, 21(10), 1912-1916 (2010-10-05)
The copper-catalyzed azide-alkyne cycloaddition (CuAAC) reaction, optimized for biological molecules in aqueous buffers, has been shown to rapidly label mammalian cells in culture with no loss in cell viability. Metabolic uptake and display of the azide derivative of N-acetylmannosamine developed
Ofer Stempler et al.
Nature communications, 8(1), 315-315 (2017-08-23)
Bacteria have developed various mechanisms by which they sense, interact, and kill other bacteria, in an attempt to outcompete one another and survive. Here we show that Bacillus subtilis can kill and prey on Bacillus megaterium. We find that Bacillus
Yibing Wang et al.
Nature communications, 9(1), 2041-2041 (2018-05-26)
Innate behaviors are genetically encoded, but their underlying molecular mechanisms remain largely unknown. Predator odor 2,4,5-trimethyl-3-thiazoline (TMT) and its potent analog 2-methyl-2-thiazoline (2MT) are believed to activate specific odorant receptors to elicit innate fear/defensive behaviors in naive mice. Here, we
Louvy Lynn Punzalan et al.
Cell chemical biology, 27(6), 708-718 (2020-05-14)
Pharmacophore-focused chemical libraries are continuously being created in drug discovery programs, yet screening assays to maximize the usage of such libraries are not fully explored. Here, we report a chemical proteomics approach to reutilizing a focused chemical library of 1,800
Katelyn Arnold et al.
Scientific reports, 10(1), 17187-17187 (2020-10-16)
Heparan sulfate (HS) is a sulfated glycosaminoglycan abundant on the cell surface and in the extracellular matrix and has several biological activities including anticoagulation and anti-inflammation. Liver ischemia reperfusion injury is associated with coagulation and inflammatory responses. Here, we synthesized
Srinivasa R Tala et al.
ACS chemical neuroscience, 9(5), 1001-1013 (2017-12-20)
The melanocortin system is involved in the regulation of complex physiological functions, including energy and weight homeostasis, feeding behavior, inflammation, sexual function, pigmentation, and exocrine gland function. The five melanocortin receptors that belong to the superfamily of G protein-coupled receptors
Weichao Li et al.
Molecular pharmaceutics, 15(8), 3252-3259 (2018-07-12)
LRRK2-IN-1, one of the first selective inhibitors of leucine-rich repeat kinase 2 (LRRK2), was serendipitously found to exhibit potent antiproliferative activity in several types of human cancer cells. In this study, we employed a chemoproteomic strategy utilizing a photoaffinity probe
Nazaret Reverón-Gómez et al.
Molecular cell, 72(2), 239-249 (2018-08-28)
Chromatin organization is disrupted genome-wide during DNA replication. On newly synthesized DNA, nucleosomes are assembled from new naive histones and old modified histones. It remains unknown whether the landscape of histone post-translational modifications (PTMs) is faithfully copied during DNA replication
Harita Rao et al.
Nature protocols, 7(6), 1097-1112 (2012-05-12)
This protocol describes the detailed experimental procedure for the synthesis of an azide-modified uridine triphosphate analog and its effective incorporation into an oligoribonucleotide by in vitro transcription reactions. Furthermore, procedures for labeling azide-modified oligoribonucleotides post-transcriptionally with biophysical probes by copper(I)-catalyzed
Zoe Pillidge et al.
EMBO reports, 20(5) (2019-03-28)
Notch signaling plays a key role in many cell fate decisions during development by directing different gene expression programs via the transcription factor CSL, known as Su(H) in Drosophila Which target genes are responsive to Notch signaling is influenced by
Tasnim Abukar et al.
Carbohydrate research, 500, 108249-108249 (2021-02-06)
Glycans on proteins and cell surfaces are useful biomarkers for determining functional interactions with glycan binding proteins, potential disease states, or indeed level of differentiation. The ability to rapidly and sensitively detect or tag specific glycans on proteins provides a
Elliot D Mock et al.
Nature chemical biology, 16(6), 667-675 (2020-05-13)
N-acylethanolamines (NAEs), which include the endocannabinoid anandamide, represent an important family of signaling lipids in the brain. The lack of chemical probes that modulate NAE biosynthesis in living systems hamper the understanding of the biological role of these lipids. Using
Tingbi Zhao et al.
Nanoscale, 9(28), 9841-9847 (2017-05-10)
A large amount of proteins are post-translationally modified with a sialic acid terminal oligosaccharide, and sialylation directly affects the function of glycoproteins and adjusts relevant biological processes. Herein, we developed a method for imaging analysis of protein-specific sialylation on the
Sheng Wang et al.
The Journal of pathology, 243(1), 78-88 (2017-06-29)
Protein modification by O-linked β-N-acetylglucosamine (O-GlcNAc) is emerging as an important factor in the pathogenesis of sporadic Alzheimer's disease (AD); however, detailed molecular characterization of this important protein post-translational modification at the proteome level has been highly challenging, owing to
Tina Wiegand et al.
Nature communications, 11(1), 32-32 (2020-01-04)
Many intracellular pathogens, such as mammalian reovirus, mimic extracellular matrix motifs to specifically interact with the host membrane. Whether and how cell-matrix interactions influence virus particle uptake is unknown, as it is usually studied from the dorsal side. Here we
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Xuan Ming et al.
Cell research, 30(11), 980-996 (2020-06-26)
Mitotic inheritance of the DNA methylome is a challenging task for the maintenance of cell identity. Whether DNA methylation pattern in different genomic contexts can all be faithfully maintained is an open question. A replication-coupled DNA methylation maintenance model was
Timothy R Chan et al.
Organic letters, 6(17), 2853-2855 (2004-08-28)
Polytriazolylamines were synthesized by the copper(I)-catalyzed ligation of azides and alkynes. The C3-symmetric derivative, TBTA, was shown to be a powerful stabilizing ligand for copper(I), protecting it from oxidation and disproportionation, while enhancing its catalytic activity.
Xiang Yu et al.
Developmental cell, 56(1), 125-140 (2020-12-09)
Although eukaryotic messenger RNAs (mRNAs) normally possess a 5' end N7-methyl guanosine (m7G) cap, a non-canonical 5' nicotinamide adenine dinucleotide (NAD+) cap can tag certain transcripts for degradation mediated by the NAD+ decapping enzyme DXO1. Despite this importance, whether NAD+
A two-component'double-click'approach to peptide stapling.
Lau YH, et al.
Nature Protocols, 10(4), 585-585 (2015)
Trine Salomón et al.
Cell chemical biology, 24(8), 935-943 (2017-08-19)
The α-oxoaldehyde methylglyoxal is a ubiquitous and highly reactive metabolite known to be involved in aging- and diabetes-related diseases. If not detoxified by the endogenous glyoxalase system, it exerts its detrimental effects primarily by reacting with biopolymers such as DNA
Ruzanna Mnatsakanyan et al.
Nature communications, 10(1), 2195-2195 (2019-05-18)
Cysteine modifications emerge as important players in cellular signaling and homeostasis. Here, we present a chemical proteomics strategy for quantitative analysis of reversibly modified Cysteines using bioorthogonal cleavable-linker and switch technique (Cys-BOOST). Compared to iodoTMT for total Cysteine analysis, Cys-BOOST
Noah R Sundah et al.
Nature biomedical engineering, 3(9), 684-694 (2019-07-10)
Massively parallel DNA sequencing is established, yet high-throughput protein profiling remains challenging. Here, we report a barcoding approach that leverages the combinatorial sequence content and the configurational programmability of DNA nanostructures for high-throughput multiplexed profiling of the subcellular expression and
Patrik Fladischer et al.
Biotechnology journal, 14(3), e1800125-e1800125 (2018-06-05)
The site-specific incorporation of non-canonical amino acids (ncAAs) at amber codons requires an aminoacyl-tRNA synthetase and a cognate amber suppressor tRNA (tRNACUA ). The archaeal tyrosyl-tRNA synthetase from Methanocaldococcus jannaschii and the pyrrolysyl-tRNA synthetase (PylRS) from Methanosarcina mazei have been
Xueqin Chen et al.
Nature communications, 8(1), 1498-1498 (2017-11-16)
Measuring the localized transient heat generation is critical for developing applications of nanomaterials in areas of photothermal therapy (PTT), drug delivery, optomechanics and biological processes engineering. However, accurate thermometry with high spatiotemporal resolution is still a challenge. Here we develop
Do the P1 and P2 hairpins of the Guanidine-II riboswitch interact?
Wuebben, et al.
Nucleic Acids Research, 48, 10518-10526 (2020)
Sarah J Hymbaugh et al.
Chembiochem : a European journal of chemical biology, 20(3), 379-384 (2018-11-15)
Histones, the fundamental building blocks of nucleosomes, undergo post-translational modifications and play a major role in the regulation of transcriptional processes. Although the significance of these modifications, including methylation, is widely recognized, little is known about the mechanisms connecting such
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