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Showing 1-30 of 32 results for "T1660" within Papers
Jean-FranƧois Couture et al.
Nature structural & molecular biology, 14(8), 689-695 (2007-06-26)
JMJD2A is a JmjC histone demethylase (HDM) that catalyzes the demethylation of di- and trimethylated Lys9 and Lys36 in histone H3 (H3K9me2/3 and H3K36me2/3). Here we present the crystal structures of the JMJD2A catalytic domain in complex with H3K9me3, H3K36me2
Lynnette M A Dirk et al.
Biochemistry, 46(12), 3905-3915 (2007-03-07)
Processive versus distributive methyl group transfer was assessed for pea Rubisco large subunit methyltransferase, a SET domain protein lysine methyltransferase catalyzing the formation of trimethyllysine-14 in the large subunit of Rubisco. Catalytically competent complexes between an immobilized form of des(methyl)
Jean-FranƧois Couture et al.
The Journal of biological chemistry, 281(28), 19280-19287 (2006-05-10)
SET domain enzymes represent a distinct family of protein lysine methyltransferases in eukaryotes. Recent studies have yielded significant insights into the structural basis of substrate recognition and the product specificities of these enzymes. However, the mechanism by which SET domain
Kevin D Daze et al.
Organic letters, 14(6), 1512-1515 (2012-03-09)
A synthetic route to produce a new family of trisulfonated calix[4]arenes bearing a single group, selectively introduced, that lines the binding pocket is reported. Ten examples, including new sulfonamide and biphenyl-substituted hosts, each with additional binding elements, demonstrate the tuning
Yasunori Tokuda et al.
Journal of bioscience and bioengineering, 111(4), 402-407 (2011-01-11)
The preparation of posttranslationally modified proteins is required to investigate the function and structure of modified proteins. However, homogeneously modified proteins are not easily isolated from natural sources or prepared using modification enzymes. Non-natural amino acid mutagenesis has enabled us
Alan T Davis et al.
The Journal of nutrition, 135(4), 761-764 (2005-03-30)
Starved male weanling rats supplemented with 20 mmol/L pivalate in their drinking water exhibit significantly depressed concentrations of carnitine in tissues and plasma. In addition, pivalate supplementation has been linked with increased renal and hepatic trimethyllysine hydroxylase (TMLH) activity, whereas
Naomi van Vlies et al.
Analytical biochemistry, 354(1), 132-139 (2006-05-19)
Although the mouse frequently is used to study metabolism and deficiencies therein, little is known about carnitine biosynthesis in this animal. To this point, only laborious procedures have been described to measure the activity of carnitine biosynthesis enzymes using subcellular
Importance of charge independent effects in readout of the trimethyllysine mark by HP1 chromodomain.
Zhenyu Lu et al.
Journal of the American Chemical Society, 131(41), 14928-14931 (2009-10-01)
Histone modifications are implicated in epigenetic inheritance and are of central importance in regulating chromatin structure and gene expression. A prototype example is the trimethylation (Me3) of lysine 9 on histone 3 (H3), which is a readout by an aromatic
Alexander Koch et al.
Experimental biology and medicine (Maywood, N.J.), 233(3), 356-365 (2008-02-26)
We tested the hypothesis that transcription of novel organic cation transporters (OCTNs) is directly regulated by peroxisome proliferator-activated receptor (PPAR)-alpha. Therefore, wild-type mice and mice deficient in PPAR alpha (PPAR alpha-/-) were treated with the PPAR alpha agonist WY 14,643.
Lei Xiong et al.
Journal of the American Society for Mass Spectrometry, 20(6), 1172-1181 (2009-03-24)
Core histones are susceptible to a range of post-translational modifications (PTMs), including acetylation, phosphorylation, methylation, and ubiquitination, which play important roles in the epigenetic control of gene expression. Here, we observed an unusual discrepancy between MALDI-MS/MS and ESI-MS/MS on the
Maren Fischer et al.
The British journal of nutrition, 101(2), 190-196 (2008-05-22)
This study was performed to investigate whether dietary lysine concentration influences the carnitine status of pigs. Therefore, an experiment with twenty young pigs with an average body weight of 21 kg was performed which were fed either a control diet
Naomi van Vlies et al.
The FEBS journal, 274(22), 5845-5851 (2007-10-20)
The first enzyme of carnitine biosynthesis is the mitochondrial 6-N-trimethyllysine dioxygenase, which converts 6-N-trimethyllysine to 3-hydroxy-6-N-trimethyllysine. Using progressive membrane solubilization with digitonin and protease protection experiments, we show that this enzyme is localized in the mitochondrial matrix. Latency experiments with
Robyn J Eisert et al.
Chembiochem : a European journal of chemical biology, 12(18), 2786-2790 (2011-11-05)
Histone lysine methylation is a critical marker for controlling gene expression. The position and extent of methylation (mono-, di-, or tri-) controls the binding of effector proteins that determine whether the associated DNA is expressed or not. Dysregulation of histone
Yongkun Wei et al.
Molecular carcinogenesis, 47(9), 701-706 (2008-01-08)
Methylation of lysine 27 on histone H3 (H3K27) by the EZH2 complex is an epigenetic mark that mediates gene silencing. EZH2 is overexpressed in many cancers and correlates with poor prognosis in both breast and prostate cancers. However, the status
Christopher R Vakoc et al.
Molecular cell, 19(3), 381-391 (2005-08-03)
Methylation of histones modulates chromatin structure and function. Whereas methylation of histone H3 on lysines 4, 36, and 79 has been linked with gene activation, methylation of H3 on lysines 9 and 27 and histone H4 on lysine 20 is
Robert M Hughes et al.
Proceedings of the National Academy of Sciences of the United States of America, 104(27), 11184-11188 (2007-06-22)
Posttranslational modifications of histone proteins regulate gene expression via complex protein-protein and protein-DNA interactions with chromatin. One such modification, the methylation of lysine, has been shown to induce binding to chromodomains in an aromatic cage [Nielsen PR, et al. (2002)
Melisa M Cherney et al.
Biochemistry, 52(5), 837-846 (2013-01-15)
Trimethyllysine 72 (Tml72) of yeast iso-1-cytochrome c lies across the surface of the heme crevice loop (Ī©-loop D, residues 70-85) like a brace. Lys72 is oriented similarly in horse cytochrome c (Cytc). To determine whether this residue affects the dynamics
Ina Kycia et al.
Journal of molecular biology, 426(8), 1651-1660 (2013-08-21)
PHF1 associates with the Polycomb repressive complex 2 and it was demonstrated to stimulate its H3K27-trimethylation activity. We studied the interaction of the PHF1 Tudor domain with modified histone peptides and found that it recognizes H3K36me3 and H3tK27me3 (on the
Andrew J Bannister et al.
The Journal of biological chemistry, 280(18), 17732-17736 (2005-03-12)
Methylation of lysine 4 of histone H3 (K4/H3) is linked to transcriptional activity, whereas methylation of K9/H3 is tightly associated with gene inactivity. These are well characterized sites of methylation within histones, but there are numerous other, less characterized, sites
Sara P Gaucher et al.
Journal of proteome research, 7(6), 2320-2331 (2008-04-18)
Recent developments in shotgun proteomics have enabled high-throughput studies of a variety of microorganisms at a proteome level and provide experimental validation for predicted open reading frames in the corresponding genome. More importantly, advances in mass spectrometric data analysis now
Hillary F Allen et al.
The Biochemical journal, 459(3), 505-512 (2014-03-01)
The tandem PHD (plant homeodomain) fingers of the CHD4 (chromodomain helicase DNA-binding protein 4) ATPase are epigenetic readers that bind either unmodified histone H3 tails or H3K9me3 (histone H3 trimethylated at Lysā¹). This dual function is necessary for the transcriptional
Robert Ringseis et al.
BMC pregnancy and childbirth, 10, 17-17 (2010-04-27)
It has been shown that plasma carnitine concentrations decrease markedly during gestation. A recent study performed with a low number of subjects suggested that this effect could be due to a low iron status which leads to an impairment of
Maria C Dzialo et al.
Biochemical and biophysical research communications, 455(3-4), 382-389 (2014-12-03)
The elongation factors of Saccharomyces cerevisiae are extensively methylated, containing a total of ten methyllysine residues. Elongation factor methyltransferases (Efm1, Efm2, Efm3, and Efm4) catalyze at least four of these modifications. Here we report the identification of a new type
Patrick J Finn et al.
Nucleic acids research, 31(16), 4769-4778 (2003-08-09)
A series of charge-modified, dye-labeled 2', 3'-dideoxynucleoside-5'-triphosphates have been synthesized and evaluated as reagents for dye-terminator DNA sequencing. Unlike the commonly used dye-labeled terminators, these terminators possess a net positive charge and migrate in the opposite direction to dye-labeled Sanger
Raphael Margueron et al.
Nature, 461(7265), 762-767 (2009-09-22)
Polycomb group proteins have an essential role in the epigenetic maintenance of repressive chromatin states. The gene-silencing activity of the Polycomb repressive complex 2 (PRC2) depends on its ability to trimethylate lysine 27 of histone H3 (H3K27) by the catalytic
Swathi Krishnan et al.
Analytical biochemistry, 420(1), 48-53 (2011-09-20)
Jumonji C (JmjC) lysine demethylases (KDMs) are Fe(II)-dependent hydroxylases that catalyze the oxidative demethylation of methyllysine residues in histones and nonhistone proteins. These enzymes play vital roles in regulating cellular processes such as gene expression, cell cycle progression, and stem
C J Rebouche et al.
The Journal of nutrition, 116(5), 751-759 (1986-05-01)
Rates of carnitine biosynthesis in mammals depend on the availability of substrates and the activity of enzymes subserving the pathway. This study was undertaken to test the hypothesis that the availability of epsilon-N-trimethyllysine is rate-limiting for synthesis of carnitine in
Amanda L Whiting et al.
Organic & biomolecular chemistry, 10(34), 6885-6892 (2012-07-26)
The binding of a series of indole-derived hosts to various ammonium cations in pure, buffered water is investigated using both solution phase (1)H NMR studies and computational modeling. These hosts can engage their targets via the cation-pi interaction, electrostatic attraction
Robert Ringseis et al.
Pharmacological research, 56(2), 175-183 (2007-07-24)
Activation of PPARalpha by clofibrate has recently been shown to cause upregulation of carnitine transporter organic cation transporter (OCTN) 2 and elevated carnitine concentrations in rat liver. The present study has been conducted to further explore the effect of clofibrate
Frank Hirche et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 877(22), 2158-2162 (2009-06-16)
For the investigation of the metabolism and biosynthesis of carnitine, sensitive determination of carnitine and its metabolic precursors, trimethyllysine and gamma-butyrobetaine, is required. We present here a new simplified method for the analysis of carnitine, its acetyl- and propyl esters
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