Name: in vitro trna methylation assay with the entamoeba histolytica dna and trna methyltransferase dnmt2 (ehmeth) enzyme
Uploaded: 2010-10-19T17:00:00
Description: Watch this Scientific Journal Video about In vitro tRNA Methylation Assay with the Entamoeba histolytica DNA and tRNA Methyltransferase Dnmt2 Ehmeth Enzyme at JoVE.com

इस अध्ययन इसराइल विज्ञान फाउंडेशन और चिकित्सा विज्ञान में अनुसंधान के लिए Rappaport परिवार संस्थान, और ड्यूश Forschungsgemeinschaft (DFG) से अनुदान द्वारा समर्थित किया गया था.

प्रयोग की शुरुआत से पहले शर्त: <ul><li> RNase मुक्त पानी प्रयोगशाला में शाही सेना के निपटने में प्रयोग किया जाता है आरएनए RNases द्वारा अपमानित होने के जोखिम को कम. इस प्रयोजन के लिए, पानी आम तौर पर कम से कम 1 घंटे के ल?...

<ol>
	<li>Banerjee, S., Fisher, O., Lohia, A., Ankri, S. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Entamoeba+histolytica+DNA+methyltransferase+(Ehmeth)+is+a+nuclear+matrix+protein+that+binds+EhMRS2,+a+DNA+that+includes+a+scaffold/matrix+attachment+region+(S/MAR).">Entamoeba histolytica DNA methyltransferase (Ehmeth) is a nuclear matrix protein that binds EhMRS2, a DNA that includes a scaffold/matrix attachment region (S/MAR).</a> Mol Biochem Parasitol. 139, 91-97 (2005).</li><li>Fisher, O., Siman-Tov, R., Ankri, S. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Characterization+of+cytosine+methylated+regions+and+5-cytosine+DNA+methyltransferase+(Ehmeth)+in+the+protozoan+parasite+Entamoeba+histolytica.">Characterization of cytosine methylated regions and 5-cytosine DNA methyltransferase (Ehmeth) in the protozoan parasite Entamoeba histolytica.</a> Nucleic Acids Res. 32, 287-297 (2004).</li><li>Harony, H., Bernes, S., Siman-Tov, R., Ankri, S. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=DNA+methylation+and+targeting+of+LINE+retrotransposons+in+Entamoeba+histolytica+and+Entamoeba+invadens.">DNA methylation and targeting of LINE retrotransposons in Entamoeba histolytica and Entamoeba invadens.</a> Mol Biochem Parasitol. 147, 55-63 (2006).</li><li>Kuhlmann, M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Silencing+of+retrotransposons+in+Dictyostelium+by+DNA+methylation+and+RNAi.">Silencing of retrotransposons in Dictyostelium by DNA methylation and RNAi.</a> Nucleic Acids Res. 33, 6405-6417 (2005).</li><li>Katoh, M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Developmentally+regulated+DNA+methylation+in+Dictyostelium+discoideum.">Developmentally regulated DNA methylation in Dictyostelium discoideum.</a> Eukaryot Cell. 5, 18-25 (2006).</li><li>Phalke, S. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Retrotransposon+silencing+and+telomere+integrity+in+somatic+cells+of+Drosophila+depends+on+the+cytosine-5+methyltransferase+DNMT2.">Retrotransposon silencing and telomere integrity in somatic cells of Drosophila depends on the cytosine-5 methyltransferase DNMT2.</a> Nat Genet. 41, 696-702 (2009).</li><li>Tovy, A., Siman Tov, R., Gaentzsch, R., Helm, M., Ankri, S. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=A+new+nuclear+function+of+the+Entamoeba+histolytica+glycolytic+enzyme+enolase:+the+metabolic+regulation+of+cytosine-5+methyltransferase+2+(Dnmt2)+activity.">A new nuclear function of the Entamoeba histolytica glycolytic enzyme enolase: the metabolic regulation of cytosine-5 methyltransferase 2 (Dnmt2) activity.</a> PLoS Pathog. 6, e1000775-e1000775 (2010).</li><li>Jeltsch, A., Nellen, W., Lyko, F. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Two+substrates+are+better+than+one:+dual+specificities+for+Dnmt2+methyltransferases.">Two substrates are better than one: dual specificities for Dnmt2 methyltransferases.</a> Trends Biochem Sci. 31, 306-308 (2006).</li><li>Fechter, P., Rudinger, J., Giege, R., Theobald-Dietrich, A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Ribozyme+processed+tRNA+transcripts+with+unfriendly+internal+promoter+for+T7+RNA+polymerase:+production+and+activity.">Ribozyme processed tRNA transcripts with unfriendly internal promoter for T7 RNA polymerase: production and activity.</a> FEBS Lett. 436, 99-103 (1998).</li><li>Hermann, A., Schmitt, S., Jeltsch, A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=The+human+Dnmt2+has+residual+DNA-(Cytosine-C5)-methyltransferase+activity.">The human Dnmt2 has residual DNA-(Cytosine-C5)-methyltransferase activity.</a> J Biol Chem. 278, 31717-31721 (2003).</li><li>Narsa Reddy, M., Tang, L. Y., Lee, T. L., &amp;amp, T. L., James Shen, C. K. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=A+candidate+gene+for+Drosophila+genome+methylation.">A candidate gene for Drosophila genome methylation.</a> Oncogene. 22, 6301-6303 (2003).</li></ol>

इस प्रस्तुति में, हम सचित्र ई. के tRNA मिथाइल गतिविधि के उपाय के लिए सक्रिय घटकों को कैसे तैयार करने के लिए हिस्टोलिटिका Ehmeth एंजाइम. इस प्रक्रिया के एक प्रारंभिक बिंदु के रूप में सेवा और अन्य tRNA methyltransferase...

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">	
		
		<div>
		<table border="1">
		<thead>
		<tr>
		<th>Material Name</th>
		<th>Type</th>
		<th>Company</th>
		<th>Catalogue Number</th>
		<th>Comment</th>
		</tr>
		</thead>
		<tbody>
		
<tr>
<td>Taq Polymerase (5 U/&mu;l)</td>
<td>&nbsp;</td>
<td>Rapidozym, Berlin</td>
<td>GEN-003-1000</td>
<td>&nbsp;</td>
<tr>
<td>10X Gentherm PCR Buffer</td>
<td>&nbsp;</td>
<td>Rapidozym, Berlin</td>
<td>With GEN-003-1000</td>
<td>&nbsp;</td>
<tr>
<td>MgCl2 (50 mM)</td>
<td>&nbsp;</td>
<td>Rapidozym, Berlin</td>
<td>With GEN-003-1000</td>
<td>&nbsp;</td>
<tr>
<td>dNTP mix (10 mM)</td>
<td>&nbsp;</td>
<td>Fermentas, St. Leon-Rot</td>
<td>R0191</td>
<td>&nbsp;</td>
<tr>
<td>Oligo nucleotides</td>
<td>&nbsp;</td>
<td>IBA, G&ouml;ttingen</td>
<td>Customized</td>
<td>&nbsp;</td>
<tr>
<td>NTP mix (25mM)</td>
<td>&nbsp;</td>
<td>Fermentas, St. Leon-Rot</td>
<td>R0481</td>
<td>&nbsp;</td>
<tr>
<td>GelRed Nucleic Acid Stain 3X in water</td>
<td>&nbsp;</td>
<td>Biotium</td>
<td>41001</td>
<td>&nbsp;</td>
<tr>
<td>Dithiotreitol</td>
<td>&nbsp;</td>
<td>Fermentas, St. Leon-Rot</td>
<td>R0861</td>
<td>&nbsp;</td>
<tr>
<td>Spermidine</td>
<td>&nbsp;</td>
<td>Sigma, Germany</td>
<td>S0266</td>
<td>&nbsp;</td>
<tr>
<td>Pall Nanosep 0.45 &mu;m</td>
<td>&nbsp;</td>
<td>Sigma, Germany</td>
<td>Z722014</td>
<td>&nbsp;</td>
<tr>
<td>Dichlorodimethylsilane</td>
<td>&nbsp;</td>
<td>Sigma, Germany</td>
<td>40140</td>
<td>&nbsp;</td>
<tr>
<td>Ethanol (Ph. Eur.)</td>
<td>&nbsp;</td>
<td>Roth, Karlsruhe</td>
<td>5054.3</td>
<td>&nbsp;</td>
<tr>
<td>Tris HCl</td>
<td>&nbsp;</td>
<td>Roth, Karlsruhe</td>
<td>9090.3</td>
<td>&nbsp;</td>
<tr>
<td>Tris</td>
<td>&nbsp;</td>
<td>Roth, Karlsruhe</td>
<td>AE15.1</td>
<td>&nbsp;</td>
<tr>
<td>BSA</td>
<td>&nbsp;</td>
<td>Fermentas, St. Leon-Rot</td>
<td>B14</td>
<td>&nbsp;</td>
<tr>
<td>Triton X-100</td>
<td>&nbsp;</td>
<td>Sigma, Germany</td>
<td>T8787</td>
<td>&nbsp;</td>
<tr>
<td>TEMED</td>
<td>&nbsp;</td>
<td>Roth, Karlsruhe</td>
<td>2367.1</td>
<td>&nbsp;</td>
<tr>
<td>Ammonium Peroxodisulfate</td>
<td>&nbsp;</td>
<td>Roth, Karlsruhe</td>
<td>9592.2</td>
<td>&nbsp;</td>
<tr>
<td>Rotiphorese Sequencing gel concentrate</td>
<td>&nbsp;</td>
<td>Roth, Karlsruhe</td>
<td>3043.1</td>
<td>&nbsp;</td>
<tr>
<td>Rotiphorese Sequencing gel diluent</td>
<td>&nbsp;</td>
<td>Roth, Karlsruhe</td>
<td>3047.1</td>
<td>&nbsp;</td>
<tr>
<td>Rotiphorese Sequencing gel buffer concentrate</td>
<td>&nbsp;</td>
<td>Roth, Karlsruhe</td>
<td>3050.1</td>
<td>&nbsp;</td>
<tr>
<td>Rotiphorese 10X TBE-buffer</td>
<td>&nbsp;</td>
<td>Roth, Karlsruhe</td>
<td>3061.2</td>
<td>&nbsp;</td>
<tr>
<td>DEPC</td>
<td>&nbsp;</td>
<td>Sigma</td>
<td>D5758</td>
<td>&nbsp;</td>
<tr>
<td>RNAse ExTERMINATOR</td>
<td>&nbsp;</td>
<td>Biological Industry Beit Haemek</td>
<td>01-895-1B</td>
<td>&nbsp;</td>
<tr>
<td>Ampicillin</td>
<td>&nbsp;</td>
<td>Sigma</td>
<td>A0166</td>
<td>&nbsp;</td>
<tr>
<td>IPTG</td>
<td>&nbsp;</td>
<td>Sigma</td>
<td>I6758</td>
<td>&nbsp;</td>
<tr>
<td>PMSF</td>
<td>&nbsp;</td>
<td>Sigma</td>
<td>P7626</td>
<td>&nbsp;</td>
<tr>
<td>Lysozyme</td>
<td>&nbsp;</td>
<td>Sigma</td>
<td>L7651</td>
<td>&nbsp;</td>
<tr>
<td>Leupeptine</td>
<td>&nbsp;</td>
<td>Sigma</td>
<td>L2884</td>
<td>&nbsp;</td>
<tr>
<td>Benzonase Nuclease</td>
<td>&nbsp;</td>
<td>Novagen</td>
<td>70746-3</td>
<td>&nbsp;</td>
<tr>
<td>BugBuster protein extraction reagent</td>
<td>&nbsp;</td>
<td>Novagen</td>
<td>70921-3</td>
<td>&nbsp;</td>
<tr>
<td>Glutathione-agarose resin</td>
<td>&nbsp;</td>
<td>Sigma</td>
<td>G4510</td>
<td>&nbsp;</td>
<tr>
<td>L-glutathione reduced</td>
<td>&nbsp;</td>
<td>Sigma</td>
<td>G4251</td>
<td>&nbsp;</td>
<tr>
<td>AdoMet</td>
<td>&nbsp;</td>
<td>New England Biolabs</td>
<td>B9003</td>
<td>&nbsp;</td>
<tr>
<td>AdoMet 3H</td>
<td>&nbsp;</td>
<td>PerkinElmer</td>
<td>NET155250UC</td>
<td>&nbsp;</td>
<tr>
<td>Scintillation Cocktail</td>
<td>&nbsp;</td>
<td>CytoScint</td>
<td>882453</td>
<td>&nbsp;</td>		</tbody>
		</table>
		</div>

in vitro trna methylation assay with the entamoeba histolytica dna and trna methyltransferase dnmt2 (ehmeth) enzyme

प्रोटोजोआ परजीवी amebiasis, जो एक परजीवी रोग से तीन सबसे आम मृत्यु के कारणों की है सहित रोगों की एक किस्म के लिए जिम्मेदार इंसानों की सबसे विनाशकारी संक्रामक एजेंटों के बीच हैं. amebiasis के एजेंट अमीबा परजीवी एटामोइबा हिस्टोलिटिका कि दो चरणों के तहत मौजूद है: संक्रामक पुटी भोजन या पानी आंत में और आक्रामक trophozoite रहने वाले में पाया . स्पर्शोन्मुख जा रहा से बृहदांत्रशोथ, पेचिश, या जिगर फोड़े amebiasis रेंज के नैदानिक ​​अभिव्यक्तियाँ ई. . हिस्टोलिटिका 5 मिथाइलसिटोसाइन (5mC) के साथ अपने जीनोम में एक दुर्लभ कोशिकीय परजीवी के 1, 2. इसमें एक मिथाइल डीएनए, Ehmeth, कि Dnmt2 परिवार के लिए है. 2 Dnmt2 के लिए दोहराए तत्वों के नियंत्रण में एक भूमिका है ई. में स्थापित किया गया हिस्टोलिटिका, 3 Dictyostelium discoideum 4,5 और ड्रोसोफिला. 6 हमारी हाल ही में काम दिखाया गया है कि Ehmeth methylates tRNA Asp, और इस खोज इंगित करता है कि यह एंजाइम एक दोहरी / डीएनए tRNA Asp मिथाइल गतिविधि है. 7 इस अवलोकन दोहरी गतिविधि के साथ समझौते में है कि डी. के लिए सूचित किया गया है discoideum और डी. मेलानोगास्टर. 8 की विशिष्टता Dnmt2 एंजाइमों डीएनए / tRNA के कार्यात्मक महत्व अभी भी अज्ञात है है . इस सवाल का पता करने के लिए, विधि Dnmt2 प्रोटीन tRNA मिथाइल गतिविधि निर्धारित स्थापित किया गया था. इस वीडियो में, हम एक सरल Dnmt2 के लिए एक पर्याप्त tRNA सब्सट्रेट तैयार दृष्टिकोण और अपने tRNA मिथाइल गतिविधि को मापने की विधि का वर्णन.

Watch this Scientific Journal Video about In vitro tRNA Methylation Assay with the Entamoeba histolytica DNA and tRNA Methyltransferase Dnmt2 Ehmeth Enzyme at JoVE.com

In vitro tRNA Methylation Assay with the Entamoeba histolytica DNA and tRNA Methyltransferase Dnmt2 Ehmeth Enzyme

इस प्रोटोकॉल के लिए एक कृत्रिम tRNA सब्सट्रेट की तैयारी का वर्णन<em&gt; एटामोइबा हिस्टोलिटिका</em&gt; डीएनए / tRNA मिथाइल 2 (Dnmt2) homolog Ehmeth और अपनी मिथाइल गतिविधि के उपाय. इस प्रयोगात्मक दृष्टिकोण अन्य Dnmt2 प्रोटीन की गतिविधि की जांच करने के लिए इस्तेमाल किया जा सकता है.

एटामोइबा हिस्टोलिटिका डीएनए और tRNA मिथाइल Dnmt2 एनजाइम (Ehmeth) के साथ इन विट्रो tRNA मेथिलिकरण परख

Protozoan parasites are among the most devastating infectious agents of humans responsible for a variety of diseases including amebiasis, which is one of ...

Research

JoVE Journal

Immunology and Infection

In vitro tRNA Methylation Assay with the Entamoeba histolytica DNA and tRNA Methyltransferase Dnmt2 (Ehmeth) Enzyme

Development of a Negative Selectable Marker for Entamoeba histolytica

Development of a Negative Selectable Marker for Entamoeba histolytica

एक नकारात्मक के लिए चयन मार्कर का विकास एटामोइबा हिस्टोलिटिका</em

Entamoeba histolytica is the causative agent of amebiasis and infects up to 10% of the world's population. The molecular techniques that have enabled the ...

Establishment of an In vitro System to Study Intracellular Behavior of Candida glabrata in Human THP-1 Macrophages

Establishment of an In vitro System to Study Intracellular Behavior of Candida glabrata in Human THP-1 Macrophages

A cell culture model system, if a close mimic of host environmental conditions, can serve as an inexpensive, reproducible and easily manipulatable ...

Quantitative In vitro Assay to Measure Neutrophil Adhesion to Activated Primary Human Microvascular Endothelial Cells under Static Conditions

Quantitative In vitro Assay to Measure Neutrophil Adhesion to Activated Primary Human Microvascular Endothelial Cells under Static Conditions

मात्रात्मक<em&gt; इन विट्रो में</emस्टेटिक शर्तों के तहत सक्रिय प्राथमिक मानव microvascular endothelial कोशिकाओं को न्युट्रोफिल आसंजन उपाय&gt; परख

The vascular  endothelium plays an integral part in the inflammatory response. During the  acute phase of inflammation, endothelial cells (ECs) are ...

In Vitro Assay to Evaluate the Impact of Immunoregulatory Pathways on HIV-specific CD4 T Cell Effector Function

In Vitro Assay to Evaluate the Impact of Immunoregulatory Pathways on HIV-specific CD4 T Cell Effector Function

इन विट्रो परख में एचआईवी विशिष्ट सीडी 4 टी सेल effector समारोह पर immunoregulatory रास्ते के प्रभाव का मूल्यांकन करने के लिए

T cell exhaustion is a major factor in failed pathogen clearance during chronic viral infections. Immunoregulatory pathways, such as PD-1 and IL-10, are ...

Investigating the Effects of Probiotics on Pneumococcal Colonization Using an In Vitro Adherence Assay

Investigating the Effects of Probiotics on Pneumococcal Colonization Using an In Vitro Adherence Assay

एक का प्रयोग न्यूमोकोकल औपनिवेशीकरण पर प्रोबायोटिक्स के प्रभाव की जांच<em&gt; इन विट्रो</em&gt; पालन परख

Adherence of Streptococcus pneumoniae (the pneumococcus) to the epithelial lining of the nasopharynx can result in colonization and is considered a ...

A Restriction Enzyme Based Cloning Method to Assess the In vitro Replication Capacity of HIV-1 Subtype C Gag-MJ4 Chimeric Viruses

A Restriction Enzyme Based Cloning Method to Assess the In vitro Replication Capacity of HIV-1 Subtype C Gag-MJ4 Chimeric Viruses

एक प्रतिबंध एंजाइम आधारित क्लोनिंग विधि का आकलन करने के लिए<em&gt; इन विट्रो</em&gt; एचआईवी -1 उपप्रकार सी चुप-MJ4 काइमेरिक वायरस की प्रतिकृति क्षमता

The protective effect of many HLA class I alleles on HIV-1 pathogenesis and disease progression is, in part, attributed to their ability to target ...

Analysis of the Epithelial Damage Produced by Entamoeba histolytica Infection

Analysis of the Epithelial Damage Produced by Entamoeba histolytica Infection

द्वारा उत्पादित उपकला नुकसान का विश्लेषण<em&gt; एटामोइबा हिस्टोलिटिका</em&gt; संक्रमण

Entamoeba histolytica is the causative agent of human amoebiasis, a major cause of diarrhea and hepatic abscess in tropical countries. Infection is ...

Development of an in vitro model system for studying the interaction of Equus caballus IgE with its high-affinity receptor Fc&#949;RI

Development of an in vitro model system for studying the interaction of Equus caballus IgE with its high-affinity receptor FcÃƒÅ½Ã‚ÂµRI

एक का विकास<em&gt; इन विट्रो</emकी बातचीत के अध्ययन के लिए&gt; मॉडल प्रणाली<em&gt; ऐकव्स</em&gt;<em&gt; Caballus</emइसकी उच्च आत्मीयता रिसेप्टर FcεRI साथ&gt; आईजीई

The interaction of IgE with its high-affinity Fc receptor (Fc&#949;RI) followed by an antigenic challenge is the principal pathway in IgE mediated ...

Measuring Influenza Neuraminidase Inhibition Antibody Titers by Enzyme-linked Lectin Assay

मापने एंजाइम से जुड़ी Lectin परख द्वारा इन्फ्लुएंजा neuraminidase निषेध एंटीबॉडी titers

Antibodies to neuraminidase (NA), the second most abundant surface protein on influenza virus, contribute toward protection against influenza. Traditional ...

Analysis of Lymphocyte Extravasation Using an In Vitro Model of the Human Blood-brain Barrier

Analysis of Lymphocyte Extravasation Using an In Vitro Model of the Human Blood-brain Barrier

लिम्फोसाइट परिस्त्राव के विश्लेषण से एक का उपयोग करना<em&gt; इन विट्रो</em&gt; मानव रक्त मस्तिष्क बाधा के मॉडल

Lymphocyte extravasation into the central nervous system (CNS) is critical for immune surveillance. Disease-related alterations of lymphocyte ...