Name: visualization of uv-induced replication intermediates in e. coli using two-dimensional agarose-gel analysis
Uploaded: 2010-12-21T16:00:00
Description: Watch this Scientific Journal Video about Visualization of UV-induced Replication Intermediates in E. coli using Two-dimensional Agarose-gel Analysis at JoVE.com

Laboratuarımızda NIGMS-Ulusal Sağlık Enstitüsü, Ulusal Bilim Vakfı ve ALANI hibe R15GM86839 KARİYER ödül MCB0551798 tarafından desteklenmektedir.

1. Büyüme ve UV Işınlama. <ol><li> Şekeri% 0.4,% 0.2 casamino asitler, ve 10 mg / ml timin (DGCthy orta) ve 100 mg / ml ampisilin ile desteklenmiş Davis orta 1 yetiştirilen plazmid pBR322 içeren taze bir gece kültür 200μl pelet. Hücre pelletini sonra ampisilin eksik 200μl DGCthy orta yeniden bekletildi ve 20 ml DGCthy orta aşılamak için kullanılır. </li><li> Kültürler 0.5 OD 600 (~ 5 x 10 8 hücre / ml) 37 sallayarak inkübatör ampisilin seçimi ° C olmadan yetiş...

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	<li>Davis, B. D. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=The+Isolation+of+Biochemically+Deficient+Mutants+of+Bacteria+by+Means+of+Penicillin.">The Isolation of Biochemically Deficient Mutants of Bacteria by Means of Penicillin.</a> Proc Natl Acad Sci U S A. 35, 1-10 (1949).</li><li>Courcelle, J., Donaldson, J. R., Chow, K. H., Courcelle, C. T. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=DNA+Damage-Induced+Replication+Fork+Regression+and+Processing+in+Escherichia+coli.">DNA Damage-Induced Replication Fork Regression and Processing in Escherichia coli.</a> Science. 299, 1064-1067 (2003).</li><li>Friedman, K. L., Brewer, B. J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Analysis+of+replication+intermediates+by+two-dimensional+agarose+gel+electrophoresis.">Analysis of replication intermediates by two-dimensional agarose gel electrophoresis.</a> Methods Enzymol. 262, 613-627 (1995).</li><li>Spivak, G., Hanawalt, P. C. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Determination+of+damage+and+repair+in+specific+DNA+sequences.">Determination of damage and repair in specific DNA sequences.</a> METHODS: A Companion to Methods in Enzymology. 7, 147-161 (1995).</li><li>Sambrook, J., Russell, D. W. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=.">.</a> Molecular Cloning - A laboratory manual. , (2001).</li><li>Donaldson, J. R., Courcelle, C. T., Courcelle, J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=RuvABC+is+required+to+resolve+holliday+junctions+that+accumulate+following+replication+on+damaged+templates+in+Escherichia+coli.">RuvABC is required to resolve holliday junctions that accumulate following replication on damaged templates in Escherichia coli.</a> J Biol Chem. 281, 28811-28821 (2006).</li><li>Donaldson, J. R., Courcelle, C. T., Courcelle, J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=RuvAB+and+RecG+Are+Not+Essential+for+the+Recovery+of+DNA+Synthesis+Following+UV-Induced+DNA+Damage+in+Escherichia+coli.">RuvAB and RecG Are Not Essential for the Recovery of DNA Synthesis Following UV-Induced DNA Damage in Escherichia coli.</a> Genetics. 166, 1631-1640 (2004).</li><li>Chow, K. H., Courcelle, J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=RecO+Acts+with+RecF+and+RecR+to+Protect+and+Maintain+Replication+Forks+Blocked+by+UV-induced+DNA+Damage+in+Escherichia+coli.">RecO Acts with RecF and RecR to Protect and Maintain Replication Forks Blocked by UV-induced DNA Damage in Escherichia coli.</a> J Biol Chem. 279, 3492-3496 (2004).</li><li>Belle, J. J., Casey, A., Courcelle, C. T., Courcelle, J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Inactivation+of+the+DnaB+helicase+leads+to+the+collapse+and+degradation+of+the+replication+fork:+a+comparison+to+UV-induced+arrest.">Inactivation of the DnaB helicase leads to the collapse and degradation of the replication fork: a comparison to UV-induced arrest.</a> J Bacteriol. 189, 5452-5462 (2007).</li><li>Chow, K. H., Courcelle, J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=RecBCD+and+RecJ/RecQ+initiate+DNA+degradation+on+distinct+substrates+in+UV-irradiated+Escherichia+coli.">RecBCD and RecJ/RecQ initiate DNA degradation on distinct substrates in UV-irradiated Escherichia coli.</a> Radiat Res. 168, 499-506 (2007).</li><li>Al-Hadid, Q., Ona, K., Courcelle, C. T., Courcelle, J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=RecA433+cells+are+defective+in+recF-mediated+processing+of+disrupted+replication+forks+but+retain+recBCD-mediated+functions.">RecA433 cells are defective in recF-mediated processing of disrupted replication forks but retain recBCD-mediated functions.</a> Mutat Res. 645, 19-26 (2008).</li></ol>

UV hasarına varlığı ve yokluğu vahşi tip hücreler elde edilen tipik sonuçlar Şekil 1&#39;de gösterilmiştir. Hasar yokluğunda, hücreler üstel fazda hızla büyüyor ~% 1, toplam plazmid DNA Y ark. Bloke çoğaltma çatal hasarlı siteleri biriktikçe ışınlama takiben, Y şekilli moleküllerin geçici bir artış görülmektedir. X-şeklinde çoğaltma ara lezyonlar tamir ile ilişkilendiren bir saatine kadar geçici olarak birikir ve devam. Güney analizi yerine, çoğaltma a...

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<td>An example of the Southern analysis of the 2D gel probed</td>
<td>&nbsp;</td>
<td>GE</td>
<td>G15T8</td>
<td>Yellow Lighting</td>
</tr>
<tr>
<td>15 &mu;watt germicidal lamp</td>
<td>&nbsp;</td>
<td>Sylvania</td>
<td>F20T12/GO</td>
<td>UV Lamp</td>
</tr>
<tr>
<td>Blak-Ray UV Intensity Meter 254nm</td>
<td>&nbsp;</td>
<td>Daigger</td>
<td>EF28195T</td>
<td>UVC photometer</td>
</tr>
<tr>
<td>0.025 &mu;m pore disks</td>
<td>&nbsp;</td>
<td>Whatman</td>
<td>VSWP04700</td>
<td>Floating dialysis disks</td>
</tr>
<tr>
<td>PvuII</td>
<td>&nbsp;</td>
<td>Fermentas</td>
<td>ER0632</td>
<td>Restriction Endonuclease</td>
</tr>
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<td>Nick-translation kit</td>
<td>&nbsp;</td>
<td>Roche Diagnostics</td>
<td>976776</td>
<td>To make 32P-labeled probe</td>
</tr>
<tr>
<td>Blotting Paper</td>
<td>&nbsp;</td>
<td>Whatman</td>
<td>3030-704</td>
<td>For Southern transfer</td>
</tr>
<tr>
<td>Nylon membrane</td>
<td>&nbsp;</td>
<td>GE Healthcare</td>
<td>RPN203S</td>
<td>For Southern transfer</td>
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visualization of uv-induced replication intermediates in e. coli using two-dimensional agarose-gel analysis

DNA hasarı varlığı Yanlış çoğaltma ve yaygın olarak insanlarda kanser gelişimi ile doğrudan ilişkili olduğuna inanılan tüm hücre tiplerinde gözlenen hücresel düzenlenmeleri ve mutagenez çoğunluk için sorumludur. DNA hasarı, UV ışını ile indüklenen gibi ciddi doğru genomik şablonu çoğaltmak çoğaltma yeteneğini bozar. Bir dizi gen ürünleri çoğaltma şablon DNA lezyonlar karşılaştığında gerekli olduğu tespit edilmiştir. Ancak, kalan meydan çoğaltma sırasında bu proteinlerin nasıl süreci lezyonları belirlemek olmuştur<em&gt; In vivo</em&gt;. Escherichia coli bir model sistem olarak kullanarak, iki boyutlu agaroz-jel analizi kopyalayan plazmid ortaya çıkan yapısal ara tanımlamak için kullanılabilecek bir prosedür tarif<em&gt; In vivo</em&gt; UV ışınlarına bağlı DNA hasarını. Bu prosedür, UV hasarına tarafından bloke çoğaltma çatal, reca ve RecF yolağı ile ilişkili çeşitli gen ürünleri tarafından stabilize geçici bir ters tabi olduğunu göstermek için kullanılmıştır. Bu teknik, bu çoğaltma ara nükleotid eksizyon onarımı ve çoğaltma devam eder lezyonların kaldırılması ile ilişkilendiren bir saatine kadar korunur olduğunu gösteriyor.

Watch this Scientific Journal Video about Visualization of UV-induced Replication Intermediates in E. coli using Two-dimensional Agarose-gel Analysis at JoVE.com

Visualization of UV-induced Replication Intermediates in E. coli using Two-dimensional Agarose-gel Analysis

Biz, iki boyutlu agaroz-jel analizi, UV ışını meydana çoğaltma ara yapısını tanımlamak için kullanılır olabilir bir prosedür sunuyoruz.

UV ile indüklenen Çoğaltma Ara Görselleştirme E. coli İki boyutlu agaroz-jel Analizi

Inaccurate replication in the presence of DNA damage is responsible for the majority of cellular rearrangements and mutagenesis observed in all cell types ...

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Visualization of UV-induced Replication Intermediates in E. coli using Two-dimensional Agarose-gel Analysis

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RNA-mediated knockdowns are widely used to control gene expression. This versatile family of techniques makes use of short RNA (sRNA) that can be ...

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The norovirus capsid is composed of a single major structural protein, termed VP1. VP1 is subdivided into a shell (S) domain and a protruding (P) domain. ...