CN
Search Within
678937
Applied Filters:
Keyword:'678937'
Showing 1-30 of 105 results for "678937" within Papers
Hong Jiang et al.
Current protocols in chemical biology, 4(1), 19-34 (2012-11-29)
Poly(ADP-ribose) polymerases (PARPs) play important roles in various biological processes, including DNA repair, transcriptional regulation, mitosis, and RNA processing. PARP inhibitors are in clinical trials for treating human cancers. Understanding the biological function of PARPs will be important to fully
Sandeep Ravindran et al.
PloS one, 4(12), e8143-e8143 (2009-12-04)
Toxoplasma gondii is a eukaryotic parasite of the phylum Apicomplexa that is able to infect a wide variety of host cells. During its active invasion process it secretes proteins from discrete secretory organelles: the micronemes, rhoptries and dense granules. Although
Chayasith Uttamapinant et al.
Nature protocols, 8(8), 1620-1634 (2013-07-28)
This protocol describes an efficient method to site-specifically label cell-surface or purified proteins with chemical probes in two steps: probe incorporation mediated by enzymes (PRIME) followed by chelation-assisted copper-catalyzed azide-alkyne cycloaddition (CuAAC). In the PRIME step, Escherichia coli lipoic acid
Emi Takamitsu et al.
Analytical biochemistry, 464, 83-93 (2014-07-22)
To establish a non-radioactive, cell-free detection system for protein N-myristoylation, metabolic labeling in a cell-free protein synthesis system using bioorthogonal myristic acid analogues was performed. After Cu(I)-catalyzed azide-alkyne cycloaddition (CuAAC) with a biotin tag, the tagged proteins were separated by
Lisa Roxanne Knoke et al.
Frontiers in microbiology, 11, 1228-1228 (2020-06-26)
Outer membrane vesicles (OMVs), released from Gram-negative bacteria, have been attributed to intra- and interspecies communication and pathogenicity in diverse bacteria. OMVs carry various components including genetic material, toxins, signaling molecules, or proteins. Although the molecular mechanism(s) of cargo delivery
Caiping Tian et al.
Cell chemical biology, 24(11), 1416-1427 (2017-10-11)
Electrophilic groups, such as Michael acceptors, expoxides, are common motifs in natural products (NPs). Electrophilic NPs can act through covalent modification of cysteinyl thiols on functional proteins, and exhibit potent cytotoxicity and anti-inflammatory/cancer activities. Here we describe a new chemoproteomic
Jung-Hyun Choi et al.
Molecular and cellular biology, 39(4) (2018-11-28)
Fragile X syndrome (FXS) caused by loss of fragile X mental retardation protein (FMRP), is the most common cause of inherited intellectual disability. Numerous studies show that FMRP is an RNA binding protein that regulates translation of its binding targets
Eliot Morrison et al.
Communications biology, 3(1), 368-368 (2020-07-12)
Palmitoylation is the reversible addition of palmitate to cysteine via a thioester linkage. The reversible nature of this modification makes it a prime candidate as a mechanism for regulating signal transduction in T-cell receptor signaling. Following stimulation of the T-cell
Daniel W Bak et al.
Cell chemical biology, 25(9), 1157-1167 (2018-07-10)
Mammalian selenocysteine (Sec)-containing proteins, selenoproteins, are important to (patho)physiological processes, including redox homeostasis. Sec residues have been recalcitrant to mass spectrometry-based chemoproteomic methods that enrich for reactive cysteine (Cys) residues with electrophilic chemical probes, despite confirmed reactivity of Sec with
Mathias J Gerl et al.
PloS one, 11(4), e0153009-e0153009 (2016-04-23)
Cell membranes contain hundreds to thousands of individual lipid species that are of structural importance but also specifically interact with proteins. Due to their highly controlled synthesis and role in signaling events sphingolipids are an intensely studied class of lipids.
Shaimaa M Aboukhatwa et al.
ChemMedChem, 14(11), 1096-1107 (2019-03-29)
Histone deacetylase (HDAC) activity is modulated in vivo by post-translational modifications and formation of multiprotein complexes. Novel chemical tools to study how these factors affect engagement of HDAC isoforms by HDAC inhibitors (HDACi) in cells and tissues are needed. In this
Rory K Morgan et al.
ACS chemical biology, 10(8), 1778-1784 (2015-05-16)
ADP-ribosylation is essential for cell function, yet there is a dearth of methods for detecting this post-translational modification in cells. Here, we describe a clickable aminooxy alkyne (AO-alkyne) probe that can detect cellular ADP-ribosylation on acidic amino acids following Cu-catalyzed
Teresa Galán et al.
Biosensors & bioelectronics, 74, 751-756 (2015-07-27)
Here we describe a label-free electrochemical DNA sensor based on poly(3,4-ethylenedioxythiophene)-modified (PEDOT-modified) electrodes. An acetylene-terminated DNA probe, complementary to a specific "Hepatitis C" virus sequence, was immobilized onto azido-derivatized conducting PEDOT electrodes using "click" chemistry. DNA hybridization was then detected
Discovery of a Functional Covalent Ligand Targeting an Intrinsically Disordered Cysteine within MYC.
Lydia Boike et al.
Cell chemical biology, 28(1), 4-13 (2020-09-24)
MYC is a major oncogenic transcriptional driver of most human cancers that has remained intractable to direct targeting because much of MYC is intrinsically disordered. Here, we have performed a cysteine-reactive covalent ligand screen to identify compounds that could disrupt
Yuanhui Ma et al.
Nature protocols, 13(8), 1744-1762 (2018-07-25)
Measuring proteome response to perturbations is critical for understanding the underlying mechanisms involved. Traditional quantitative proteomic methods are limited by the large numbers of proteins in the proteome and the mass spectrometer's dynamic range. A previous method uses the biorthogonal
Clive Yik-Sham Chung et al.
Nature chemical biology, 15(8), 776-785 (2019-07-10)
Autophagy is a lysosomal degradation pathway that eliminates aggregated proteins and damaged organelles to maintain cellular homeostasis. A major route for activating autophagy involves inhibition of the mTORC1 kinase, but current mTORC1-targeting compounds do not allow complete and selective mTORC1
Frank Iversen et al.
Theranostics, 3(3), 201-209 (2013-03-09)
Some of the main concerns with in vivo application of naked small interfering RNA are rapid degradation and urinary excretion resulting in a short plasma half-life. In this study we investigated how conjugation of polyethylene glycol (PEG) with variable chain
Susie J Zoltewicz et al.
ASN neuro, 4(6), 409-421 (2012-11-07)
PMP22 (peripheral myelin protein 22), also known as GAS 3 (growth-arrest-specific protein 3), is a disease-linked tetraspan glycoprotein of peripheral nerve myelin and constituent of intercellular junctions in epithelia. To date, our knowledge of the post-translational modification of PMP22 is
Mingming Zhang et al.
Nature, 586(7829), 434-439 (2020-10-09)
Cysteine palmitoylation (S-palmitoylation) is a reversible post-translational modification that is installed by the DHHC family of palmitoyltransferases and is reversed by several acyl protein thioesterases1,2. Although thousands of human proteins are known to undergo S-palmitoylation, how this modification is regulated
Zhanwu Hou et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 1165, 122527-122527 (2021-01-25)
Nascent proteome presents dynamic changes in response to a certain stimulus. Thus, monitoring nascent proteome is critical to uncovering the involved biological mechanism. But the low-abundance of nascent proteome against an overwhelming pre-existing proteome limits its identification and quantification. Herein
Raffaello Verardi et al.
Structure (London, England : 1993), 25(9), 1337-1347 (2017-08-02)
DHHC enzymes catalyze palmitoylation, a major post-translational modification that regulates a number of key cellular processes. There are up to 24 DHHCs in mammals and hundreds of substrate proteins that get palmitoylated. However, how DHHC enzymes engage with their substrates
Bruce G Mockett et al.
The Journal of neuroscience : the official journal of the Society for Neuroscience, 39(17), 3188-3203 (2019-02-26)
Secreted amyloid precursor protein-alpha (sAPPα) has growth factor-like properties and can modulate long-term potentiation (LTP) and memory. Here, we demonstrate that exposure to sAPPα converts short-lasting LTP into protein-synthesis-dependent late LTP in hippocampal slices from male rats. sAPPβ had no
Michal Segal et al.
Biology open, 1(3), 220-231 (2012-12-06)
Bidirectional transport is a key issue in cellular biology. It requires coordination between microtubule-associated molecular motors that work in opposing directions. The major retrograde and anterograde motors involved in bidirectional transport are cytoplasmic dynein and conventional kinesin, respectively. It is
Sima Rahimian et al.
Biomaterials, 37, 469-477 (2014-12-03)
Particulate antigen delivery systems aimed at the induction of antigen-specific T cells form a promising approach in immunotherapy to replace pharmacokinetically unfavorable soluble antigen formulations. In this study, we developed a delivery system using the model protein antigen ovalbumin (OVA)
Geoffrey A Heinzl et al.
Pharmaceutical research, 36(7), 103-103 (2019-05-19)
A rapid and broadly applicable method to assess relevant oxidative damage in biopharmaceuticals is important for lifecycle management of product quality. Multiple methods are currently employed as stress tests to induce oxidative damage for assessment of stability, safety, and efficacy.
Daniel T Cohen et al.
Cell reports, 30(10), 3229-3239 (2020-03-12)
BCL-2 family proteins converge at the mitochondrial outer membrane to regulate apoptosis and maintain the critical balance between cellular life and death. This physiologic process is essential to organism homeostasis and relies on protein-protein and protein-lipid interactions among BCL-2 family
M Sloan Siegrist et al.
ACS chemical biology, 8(3), 500-505 (2012-12-18)
Peptidoglycan (PG) is an essential component of the bacterial cell wall. Although experiments with organisms in vitro have yielded a wealth of information on PG synthesis and maturation, it is unclear how these studies translate to bacteria replicating within host
Lien Nguyen et al.
Neuron, 105(4), 645-662 (2019-12-14)
The intronic C9orf72 G4C2 expansion, the most common genetic cause of ALS and FTD, produces sense- and antisense-expansion RNAs and six dipeptide repeat-associated, non-ATG (RAN) proteins, but their roles in disease are unclear. We generated high-affinity human antibodies targeting GA
Brent R Martin
Current protocols in protein science, 73, 14-14 (2014-02-11)
Methods to study protein S-palmitoylation dynamics have previously relied on metabolic labeling with [(14)C]palmitate, which requires additional safety precautions and long exposures. Nonradioactive alkynyl palmitate analogs have been developed for in-gel fluorescence detection and affinity purification. Cells metabolically labeled with
Jinlong Fan et al.
Journal of materials chemistry. B, 8(33), 7501-7510 (2020-07-17)
Electrically addressable covalent immobilization of probes on a multiplexed electrode for the simultaneous detection of multiple targets within the same sample is often regarded as a difficult milestone to be achieved. Herein, we demonstrated a reagentless disposable multiplexed electrochemical DNA
Page 1 of 4