Journal ArticleJ Biol Chem · March 2025
Protein S-palmitoylation is a reversible lipophilic posttranslational modification regulating diverse signaling pathways. Within transmembrane proteins (TMPs), S-palmitoylation is implicated in conditions from inflammatory disorders to respiratory viral in ...
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Journal ArticleJ Proteome Res · August 2, 2024
Proteins undergo reversible S-acylation via a thioester linkage in vivo. S-palmitoylation, modification by C16:0 fatty acid, is a common S-acylation that mediates critical protein-membrane and protein-protein interactions. The most widely used S-acylation ...
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Journal ArticleJournal of Clinical Urology · November 1, 2023
Initially thought to be a primarily respiratory disease process, the hypercoagulable state associated with COVID-19 has been associated with myriad clinical sequelae. We report a case of stuttering ischemic priapism associated with COVID-19, and describe a ...
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Journal ArticleJ Biol Chem · September 6, 2019
Dynamic control of thioredoxin (Trx) oxidoreductase activity is essential for balancing the need of cells to rapidly respond to oxidative/nitrosative stress and to temporally regulate thiol-based redox signaling. We have previously shown that cytokine stim ...
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Journal ArticleJ Biol Chem · January 31, 2014
S-nitrosylation of nuclear factor κB (NF-κB) on the p65 subunit of the p50/p65 heterodimer inhibits NF-κB DNA binding activity. We have recently shown that p65 is constitutively S-nitrosylated in the lung and that LPS-induced injury elicits a decrease in S ...
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Journal ArticleNitric Oxide · November 1, 2013
The cytokine-inducible isoform of nitric oxide synthase (NOS2) is constitutively expressed in human respiratory epithelia and is upregulated in inflammatory lung disease. Here, we sought to better define the protein interactions that may be important for N ...
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Journal ArticleMethods · August 1, 2013
The proteomic analysis of S-nitrosylated protein (SNO-proteins) has long depended on the biotin switch technique (BST), which requires blocking of free thiols, ascorbate-based denitrosylation of SNO-Cys, biotinylation of nascent thiol and avidin-based affi ...
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Journal ArticleFree Radic Biol Med · May 1, 2012
Nitric oxide (NO) is an inevitable product of life in an oxygen- and nitrogen-rich environment. This reactive diatomic molecule exhibits microbial cytotoxicity, in large part by facilitating nitrosative stress and inhibiting heme-containing proteins within ...
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Journal ArticleCell · July 8, 2011
Malignant gliomas are aggressive brain tumors with limited therapeutic options, and improvements in treatment require a deeper molecular understanding of this disease. As in other cancers, recent studies have identified highly tumorigenic subpopulations wi ...
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Journal ArticleJ Lipid Res · February 2011
Protein S-acylation is a major posttranslational modification whereby a cysteine thiol is converted to a thioester. A prototype is S-palmitoylation (fatty acylation), in which a protein undergoes acylation with a hydrophobic 16 carbon lipid chain. Although ...
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Journal ArticleBiotechniques · January 2011
A wide range of mammalian signaling and stress pathways are mediated by nitric oxide (NO), which is synthesized in vivo by the nitric oxide synthase (NOS) family of enzymes. Experimental manipulations of NO are frequently achieved by either inhibition or a ...
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Journal ArticleCirc Res · March 5, 2010
Well over 2 decades have passed since the endothelium-derived relaxation factor was reported to be the gaseous molecule nitric oxide (NO). Although soluble guanylyl cyclase (which generates cyclic guanosine monophosphate, cGMP) was the first identified rec ...
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Journal ArticleJ Biol Chem · December 25, 2009
Nitric oxide exerts a plethora of biological effects via protein S-nitrosylation, a redox-based reaction that converts a protein Cys thiol to a S-nitrosothiol. However, although the regulation of protein S-nitrosylation has been the subject of extensive st ...
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Journal ArticleProc Natl Acad Sci U S A · November 10, 2009
The ubiquitous cellular influence of nitric oxide (NO) is exerted substantially through protein S-nitrosylation. Whereas NO is highly promiscuous, physiological S-nitrosylation is typically restricted to one or very few Cys residue(s) in target proteins. T ...
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Journal ArticleNat Rev Mol Cell Biol · October 2009
S-Nitrosylation, the redox-based modification of Cys thiol side chains by nitric oxide, is a common mechanism in signal transduction. Dysregulated S-nitrosylation contributes to a range of human pathologies. New roles for protein denitrosylation in regulat ...
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Journal ArticleSci Signal · July 7, 2009
Agonist-induced ubiquitylation and degradation of heterotrimeric guanine nucleotide-binding protein (G protein)-coupled receptors (GPCRs) play an essential role in surface receptor homeostasis, thereby tuning many physiological processes. Although beta-arr ...
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Journal ArticleNat Biotechnol · June 2009
We have modified the biotin switch assay for protein S-nitrosothiols (SNOs), using resin-assisted capture (SNO-RAC). Compared with existing methodologies, SNO-RAC requires fewer steps, detects high-mass S-nitrosylated proteins more efficiently, and facilit ...
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Journal ArticleFree Radic Biol Med · January 15, 2009
Protein S-nitrosylation, the posttranslational modification of cysteine thiols to form S-nitrosothiols, is a principle mechanism of nitric oxide-based signaling. Studies have demonstrated myriad roles for S-nitrosylation in organisms from bacteria to human ...
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Journal ArticleScience · May 23, 2008
Nitric oxide acts substantially in cellular signal transduction through stimulus-coupled S-nitrosylation of cysteine residues. The mechanisms that might subserve protein denitrosylation in cellular signaling remain uncharacterized. Our search for denitrosy ...
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Journal ArticleJ Biol Chem · May 11, 2007
Protein S-nitrosylation has emerged as a principal mechanism by which nitric oxide exerts biological effects. Among methods for studying protein S-nitrosylation, the biotin switch technique (BST) has rapidly gained popularity because of the ease with which ...
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Journal ArticleACS Chem Biol · July 21, 2006
S-Nitrosylation, the covalent addition of a nitrogen monoxide group to a cysteine thiol, has been shown to modify the function of a broad spectrum of mammalian, plant, and microbial proteins and thereby to convey the ubiquitous influence of nitric oxide on ...
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