Name: expression, detergent solubilization, and purification of a membrane transporter, the mexb multidrug resistance protein
Uploaded: 2010-12-03T12:00:00
Description: Watch this Scientific Journal Video about Expression, Detergent Solubilization, and Purification of a Membrane Transporter, the MexB Multidrug Resistance Protein at JoVE.com

Bu proje, Ulusal Bilim Vakfı ve Biyomoleküler Bilimler Derneği CJJ hibe tarafından desteklenen oldu.

1. 1. Gün: Pseudomonas aeruginosa MexB pFB101 kodlanır. P. MexB geni amplifiye edildi aeruginosa genomik DNA ve NdeI ve XhoI kısıtlama siteleri pET30b + vektör eklenir. Bir yapı, bir C-terminal hexahistidine etiketi içerir. <ol><li> Plazmid E. dönüştürmek için kullanılır. coli C43 (de3) 12 suşu ve 30 ug / ml kanamisin içeren LB agar transformants kaplanmıştır. </li></ol> 2. 2. Gün: Gecelik Kü...

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	<li>Eda, S., Maseda, H., Nakae, T. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=An+elegant+means+of+self-protection+in+gram-negative+bacteria+by+recognizing+and+extruding+xenobiotics+from+the+periplasmic+space.">An elegant means of self-protection in gram-negative bacteria by recognizing and extruding xenobiotics from the periplasmic space.</a> J. Biol. Chem. 278, 2085-2088 (2003).</li><li>Li, X. Z., Ma, D., Livermore, D. M., Nikaido, H. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Role+of+efflux+pump(s)+in+intrinsic+resistance+of+Pseudomonas+aeruginosa:+active+efflux+as+a+contributing+factor+to+beta-lactam+resistance.">Role of efflux pump(s) in intrinsic resistance of Pseudomonas aeruginosa: active efflux as a contributing factor to beta-lactam resistance.</a> Antimicrob. Agents Chemother. 38, 1742-1752 (1994).</li><li>Li, X. Z., Nikaido, H., Poole, K. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Role+of+MexA-MexB-OprM+in+antibiotic+efflux+in+Pseudomonas+aeruginosa.">Role of MexA-MexB-OprM in antibiotic efflux in Pseudomonas aeruginosa.</a> Antimicrob. Agents Chemother. 39, 1948-1953 (1995).</li><li>Masuda, N., Sakagawa, E., Ohya, S., Gotoh, N., Tsujimoto, H., Nishino, T. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Substrate+specificities+of+MexAB-OprM,+MexCD-OprJ,+and+MexXY-oprM+efflux+pumps+in+Pseudomonas+aeruginosa.">Substrate specificities of MexAB-OprM, MexCD-OprJ, and MexXY-oprM efflux pumps in Pseudomonas aeruginosa.</a> Antimicrob. Agents Chemother. 44, 3322-3327 (2000).</li><li>Okusu, H., Ma, D., Nikaido, H. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=AcrAB+efflux+pump+plays+a+major+role+in+the+antibiotic+resistance+phenotype+of+Escherichia+coli+multiple-antibiotic-resistance+(Mar)+mutants.">AcrAB efflux pump plays a major role in the antibiotic resistance phenotype of Escherichia coli multiple-antibiotic-resistance (Mar) mutants.</a> J. Bacteriol. 178, 306-308 (1996).</li><li>Srikumar, R., Kon, T., Gotoh, N., Poole, K. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Expression+of+Pseudomonas+aeruginosa+multidrug+efflux+pumps+MexA-MexB-OprM+and+MexC-MexD-OprJ+in+a+multidrug-sensitive+Escherichia+coli+strain.">Expression of Pseudomonas aeruginosa multidrug efflux pumps MexA-MexB-OprM and MexC-MexD-OprJ in a multidrug-sensitive Escherichia coli strain.</a> Antimicrob. Agents Chemother. 42, 65-71 (1998).</li><li>Tikhonova, E. B., Zgurskaya, H. I. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=AcrA,+AcrB,+and+TolC+of+Escherichia+coli+Form+a+Stable+Intermembrane+Multidrug+Efflux.">AcrA, AcrB, and TolC of Escherichia coli Form a Stable Intermembrane Multidrug Efflux.</a> Complex. J. Biol. Chem. 279, 32116-3224 (2004).</li><li>Yoneyama, H., Ocakatan, A., Tsuda, M., Nakae, T. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=The+role+of+mex-gene+products+in+antibiotic+extrusion+in+Pseudomonas+aeruginosa.">The role of mex-gene products in antibiotic extrusion in Pseudomonas aeruginosa.</a> Biochem. Biophys. Res. Commun. 233, 611-618 (1997).</li><li>Berger, B. W., Gendron, C. M., Robinson, C. R., Kaler, E. W., Lenhoff, A. M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=The+role+of+protein+and+surfactant+interactions+in+membrane-protein+crystallization.">The role of protein and surfactant interactions in membrane-protein crystallization.</a> Acta. Crystallogr. D Biol. Crystallogr. 61, 724-730 (2005).</li><li>Jones, M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Surfactants+in+membrane+solubilisation.">Surfactants in membrane solubilisation.</a> Int. J. Pharm. 177, 137-159 (1999).</li><li>Maire, M. l. e., Champeil, P., Moller, J. V. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Interaction+of+membrane+proteins+and+lipids+with+solubilizing+detergents.">Interaction of membrane proteins and lipids with solubilizing detergents.</a> Biochim. Biophys. Acta. 1508, 86-111 (2000).</li><li>Miroux, B., Walker, J. E. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Over-production+of+proteins+in+Escherichia+coli:+mutant+hosts+that+allow+synthesis+of+some+membrane+proteins+and+globular+proteins+at+high+levels.">Over-production of proteins in Escherichia coli: mutant hosts that allow synthesis of some membrane proteins and globular proteins at high levels.</a> J. Mol. Biol. 260, 289-298 (1996).</li></ol>

Direnci, iyon transportu, hücre-hücre iletişimi, vezikül taşıma, hücresel yapı bakım ve konak-patojen etkileşimi de dahil olmak üzere pek çok yaşamsal hücresel faaliyetler, ilaca ek olarak, hücre zarı içinde gömülü olan proteinler içerir. Transmembran proteinler bilinen proteinlerin% 30 üzerinde makyaj ve bugün kullanılan ilaçların büyük çoğunluğu için hedeflerdir. Transmembran proteinler yanlış katlama ya da etkinlik, kistik fibrozis ve diyabet gibi önemli genetik hastalıkların nede...

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		<th>Material Name</th>
		<th>Type</th>
		<th>Company</th>
		<th>Catalogue Number</th>
		<th>Comment</th>
		</tr>
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<tr>
<td>SDS sample buffer</td>
<td>&nbsp;</td>
<td>Biorad</td>
<td>161-0737</td>
<td>&nbsp;</td>
<tr>
<td>C43(DE3) E. coli strain</td>
<td>&nbsp;</td>
<td>Lucigen</td>
<td>60345-1</td>
<td>&nbsp;</td>
<tr>
<td>kanamycin sulfate</td>
<td>&nbsp;</td>
<td>Sigma-Aldrich</td>
<td>K4378</td>
<td>&nbsp;</td>
<tr>
<td>2XYT media</td>
<td>&nbsp;</td>
<td>Fisher</td>
<td>BP2466-2</td>
<td>&nbsp;</td>
<tr>
<td>LB media</td>
<td>&nbsp;</td>
<td>Fisher</td>
<td>AC61189-5000</td>
<td>&nbsp;</td>
<tr>
<td>IPTG</td>
<td>&nbsp;</td>
<td>Sigma-Aldrich</td>
<td>I6758</td>
<td>&nbsp;</td>
<tr>
<td>DNaseI</td>
<td>&nbsp;</td>
<td>Fisher</td>
<td>BP3226-1</td>
<td>&nbsp;</td>
<tr>
<td>Lysozyme</td>
<td>&nbsp;</td>
<td>Sigma-Aldrich</td>
<td>L7651</td>
<td>&nbsp;</td>
<tr>
<td>Complete EDTA-free protease inhibitor tablets</td>
<td>&nbsp;</td>
<td>Roche</td>
<td>11 873 580 001</td>
<td>&nbsp;</td>
<tr>
<td>NaP monobasic</td>
<td>&nbsp;</td>
<td>Sigma-Aldrich</td>
<td>S6566</td>
<td>&nbsp;</td>
<tr>
<td>NaP dibasic</td>
<td>&nbsp;</td>
<td>Sigma-Aldrich</td>
<td>S5136</td>
<td>&nbsp;</td>
<tr>
<td>NaCl</td>
<td>&nbsp;</td>
<td>Sigma-Aldrich</td>
<td>S6191</td>
<td>&nbsp;</td>
<tr>
<td>MgCl2</td>
<td>&nbsp;</td>
<td>Sigma-Aldrich</td>
<td>M1028</td>
<td>&nbsp;</td>
<tr>
<td>Glycerol</td>
<td>&nbsp;</td>
<td>Fisher</td>
<td>BP229-1</td>
<td>&nbsp;</td>
<tr>
<td>n-dodecyl-&beta;-D-maltopyranoside</td>
<td>&nbsp;</td>
<td>Anatrace</td>
<td>D310</td>
<td>&nbsp;</td>
<tr>
<td>15ml tubes</td>
<td>&nbsp;</td>
<td>Corning</td>
<td>430052</td>
<td>&nbsp;</td>
<tr>
<td>See-Saw Rocker</td>
<td>&nbsp;</td>
<td>Fisher</td>
<td>SSL 4</td>
<td>&nbsp;</td>
<tr>
<td>Talon metal affinity resin</td>
<td>&nbsp;</td>
<td>Clontech</td>
<td>635503</td>
<td>&nbsp;</td>
<tr>
<td>imidazole</td>
<td>&nbsp;</td>
<td>Sigma-Aldrich</td>
<td>I5513</td>
<td>&nbsp;</td>
<tr>
<td>10% polyacrylamide SDS PAGE gels</td>
<td>&nbsp;</td>
<td>BioRad</td>
<td>161-1454</td>
<td>&nbsp;</td>
<tr>
<td>Tris/glycine/SDS PAGE running buffer</td>
<td>&nbsp;</td>
<td>BioRad</td>
<td>161-0732</td>
<td>&nbsp;</td>
<tr>
<td>Kaleidascope prestained molecular weight markers</td>
<td>&nbsp;</td>
<td>BioRad</td>
<td>161-0324</td>
<td>&nbsp;</td>
<tr>
<td>Superose 12 30/10 column</td>
<td>&nbsp;</td>
<td>GEHealthcareSuperose</td>
<td>12 10/300 GL</td>
<td>&nbsp;</td>
<tr>
<td>Amicon centrifugal concentrator</td>
<td>&nbsp;</td>
<td>Millipore</td>
<td>UFC801024</td>
<td>&nbsp;</td>
<tr>
<td>Syringe filter</td>
<td>&nbsp;</td>
<td>Fisher</td>
<td>SLFG R04 NL</td>
<td>&nbsp;</td>
<tr>
<td>Fernbach flasks</td>
<td>&nbsp;</td>
<td>Fisher</td>
<td>09-552-39</td>
<td>&nbsp;</td>
<tr>
<td>Shaker to hold Fernbach flasks</td>
<td>&nbsp;</td>
<td>Fisher Scientific</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<tr>
<td>Akta system</td>
<td>&nbsp;</td>
<td>GE Healthcare</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<tr>
<td>J6 Large scale centrifuge with JLA-8.1000 rotor</td>
<td>&nbsp;</td>
<td>Beckman</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<tr>
<td>1 l centrifuge bottles</td>
<td>&nbsp;</td>
<td>Beckman</td>
<td>969329</td>
<td>&nbsp;</td>
<tr>
<td>RC-5 centrifuge</td>
<td>&nbsp;</td>
<td>ThermoScientific</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<tr>
<td>SS34 fixed-angle rotor and tubes</td>
<td>&nbsp;</td>
<td>ThermoScientific</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<tr>
<td>Sorvall floor model Ultracentrifuge</td>
<td>&nbsp;</td>
<td>ThermoScientific</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<tr>
<td>T647.5 rotor and tubes with caps</td>
<td>&nbsp;</td>
<td>ThermoScientific</td>
<td>08322</td>
<td>&nbsp;</td>
<tr>
<td>French Pressure Cell</td>
<td>&nbsp;</td>
<td>ThermoScientific</td>
<td>FA-032</td>
<td>&nbsp;</td>		</tbody>
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expression, detergent solubilization, and purification of a membrane transporter, the mexb multidrug resistance protein

Çok ilaca direnç (MDR), bir kanser hücresi ya da patojen yeteneği, geniş bir yelpazede yapısal ve işlevsel olarak ilgisi olmayan bir anti-kanser ilaçlar ya da antibiyotik dirençli olduğu, halk sağlığı alanında geçerli bir ciddi bir sorundur. Bu ilaca direnci büyük ölçüde bağımlı enerji ilaç dışarı atım pompaları nedeniyle. Pompaları, dış ortama toksik bir eşiğin altında kendi hücre içi konsantrasyonu düşürücü anti-kanser ilaçlar ya da antibiyotik sınırdışı. Biz örneğin, yanıklara veya kistik fibrozis, ve aynı zamanda immün sistemi zayıf olan kanser, diyaliz, ve transplantasyon hastaları, çok ilaca direnç Pseudomonas aeruginosa, birçok yaralanma veya hastalık türleri olan hastalarda enfeksiyonlarına neden olan fırsatçı bir bakteriyel patojen eğitim görmektedir. P. büyük MDR efflux pompaları aeruginosa bir iç membran proton-ilaç antiporter (RND), bir dış membran kanal (OMF) ve bir periplazmik bağlayıcının protein (MFP) 1-8 oluşan üçlü kompleksler. RND ve OMF proteinler transmembran proteinlerdir. Transmembran proteinler tüm proteinlerin% 30&#39;dan fazla makyaj ve% 65 ilaç hedefleri vardır. Hidrofobik transmembran alanları, sulu tampon proteinler çözünmez yapın. Transmembran protein saflaştırılmış önce, hafif bir deterjan içeren bir protein deterjan kompleksi (PDC) 9-11 olarak çözünür protein sağlayacak bir tampon koşulları bulmak için gerekli. Bu örnekte, bir RND protein, P. aeruginosa MexB transmembran taşıyıcı bir transmembran protein rekombinant formu, ifade, bu deterjan kullanarak çözünür ve ardından, protein deterjan kompleksleri arındırmak için nasıl göstermek için. Bu ifade, arıtma, ve diğer birçok recombinantly ifade zarı proteinleri çözünürleştirme genel yöntemi uygulanabilir. Protein deterjan kompleksleri, daha sonra X-ray kristal yapı tayini veya çapraz bağlanma çalışmaları da dahil olmak üzere biyokimyasal ve biyofiziksel karakterizasyonu için kullanılabilir.

Watch this Scientific Journal Video about Expression, Detergent Solubilization, and Purification of a Membrane Transporter, the MexB Multidrug Resistance Protein at JoVE.com

Expression, Detergent Solubilization, and Purification of a Membrane Transporter, the MexB Multidrug Resistance Protein

Bu protokolde, çözünebilir bir protein deterjan kompleksi olarak, ifade, çözünmüş ve recombinantly ifade membran proteini, MexB arıtma göstermektedir. MexB fırsatçı bakteriyel patojen Pseudomonas aeruginosa bir çok ilaca direnç membran taşıyıcı.

İfade, Deterjan çözünürleştirme ve Membran Transporter, MexB ilaca Direnç Protein Saflaştırılması

Multidrug resistance (MDR), the ability of a cancer cell or pathogen to be resistant to a wide range of structurally and functionally unrelated ...

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