Name: in situ subcellular fractionation of adherent and non-adherent mammalian cells
Uploaded: 2010-07-23T17:30:00
Description: Watch this Scientific Journal Video about In situ Subcellular Fractionation of Adherent and Non-adherent Mammalian Cells at JoVE.com

Anyaporn Sawasdichai e Nazefah Abdul Hamid grati al governo tailandese e il Governo della Malaysia, rispettivamente per dottorato di ricerca Borse di studio. Questo lavoro è stato finanziato da un progetto Wellcome Trust sovvenzione concessa a PSJ e KG. Siamo anche grati per l&#39;Università di Bristol Fondo Bioimmagini Wolfson.

I. Preparazione per il frazionamento Questa sezione descrive la preparazione di poli-L-lisina coprioggetto microscopio rivestiti e l&#39;attaccamento di cellule prima del frazionamento. Se necessario le cellule possono essere transitoriamente transfettate con vettori di espressione delle proteine ​​prima o dopo l&#39;attaccamento. A. Preparazione del coprioggetto rivestiti di poli-L-lisina <ol><li> Preparare una soluzione di 1mg/ml poli-L-lisina in acqua dist...

<ol>
	<li>Donaldson, M. M., Boner, W., Morgan, I. M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=TopBP1+regulates+human+papillomavirus+type+16+E2+interaction+with+chromatin.">TopBP1 regulates human papillomavirus type 16 E2 interaction with chromatin.</a> J Virol. 81, 4338-4342 (2007).</li><li>Javed, A., Guo, B., Hiebert, S., Choi, J. Y., Green, J., Zhao, S. C., Osborne, M. A., Stifani, S., Stein, J. L., Lian, J. B., van Wijnen, A. J., Stein, G. S. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Groucho/TLE/R-esp+proteins+associate+with+the+nuclear+matrix+and+repress+RUNX+(CBF(alpha)/AML/PEBP2(alpha))+dependent+activation+of+tissue-specific+gene+transcription.">Groucho/TLE/R-esp proteins associate with the nuclear matrix and repress RUNX (CBF(alpha)/AML/PEBP2(alpha)) dependent activation of tissue-specific gene transcription.</a> J Cell Sci. 113, 2221-2231 (2000).</li><li>Kowalczyk, A. M., Roeder, G. E., Green, K., Stephens, D. J., Gaston, K. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Measuring+the+induction+or+inhibition+of+apoptosis+by+HPV+proteins.">Measuring the induction or inhibition of apoptosis by HPV proteins.</a> Methods Mol. Med. 119, 419-432 (2005).</li><li>McLarren, K. W., Theriault, F. M., Stifani, S. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Association+with+the+nuclear+matrix+and+interaction+with+Groucho+and+RUNX+proteins+regulate+the+transcription+repression+activity+of+the+basic+helix+loop+helix+factor+Hes1.">Association with the nuclear matrix and interaction with Groucho and RUNX proteins regulate the transcription repression activity of the basic helix loop helix factor Hes1.</a> J Biol. Chem. 276, 1578-1584 (2001).</li><li>McNeil, S., Guo, B., Stein, J. L., Lian, J. B., Bushmeyer, S., Seto, E., Atchison, M. L., Penman, S., van Wijnen, A. J., Stein, G. S. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Targeting+of+the+YY1+transcription+factor+to+the+nucleolus+and+the+nuclear+matrix+in+situ:+the+C-terminus+is+a+principal+determinant+for+nuclear+trafficking.">Targeting of the YY1 transcription factor to the nucleolus and the nuclear matrix in situ: the C-terminus is a principal determinant for nuclear trafficking.</a> J Cell Biochem. 68, 500-510 (1998).</li><li>Melan, M. A., Sluder, G. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Redistribution+and+differential+extraction+of+soluble+proteins+in+permeabilized+cultured+cells.+Implications+for+immunofluorescence+microscopy.">Redistribution and differential extraction of soluble proteins in permeabilized cultured cells. Implications for immunofluorescence microscopy.</a> J Cell Sci. 101, 731-743 (1992).</li><li>Zou, N., Lin, B. Y., Duan, F., Lee, K. Y., Jin, G., Guan, R., Yao, G., Lefkowitz, E. J., Broker, T. R., Chow, L. 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+hinge+of+the+human+papillomavirus+type+11+E2+protein+contains+major+determinants+for+nuclear+localization+and+nuclear+matrix+association.">The hinge of the human papillomavirus type 11 E2 protein contains major determinants for nuclear localization and nuclear matrix association.</a> J. Virol. 74, 3761-3770 (2000).</li></ol>

Problemi comuni e suggerimenti: Tutti o la maggior parte delle cellule sono persi durante il lavaggio. Durante le fasi di lavaggio deve essere aggiunto lentamente al lato del 6-pozzetti evitando il coprioggetto. Allo stesso modo i liquidi devono essere rimossi con attenzione inclinando la piastra e lentamente pipettaggio l&#39;eccesso di liquido. L&#39;adesione cellulare può essere aumentata mediante coprioggetto rivestiti di poli-L-lisina. DNA genomico non è del ...

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		<th>Material Name</th>
		<th>Type</th>
		<th>Company</th>
		<th>Catalogue Number</th>
		<th>Comment</th>
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<td>BSA</td>
<td>Chemical</td>
<td>Sigma</td>
<td>A9647-100G</td>
<td>&nbsp;</td>
<tr>
<td>DNase I</td>
<td>Chemical</td>
<td>Sigma</td>
<td>DN25-1G</td>
<td>&nbsp;</td>
<tr>
<td>poly-L-Lysine</td>
<td>Chemical</td>
<td>Sigma</td>
<td>P-8920</td>
<td>&nbsp;</td>
<tr>
<td>Trypsin</td>
<td>Chemical</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<tr>
<td>EGTA</td>
<td>Chemical</td>
<td>Sigma</td>
<td>E4378-25G </td>
<td>&nbsp;</td>
<tr>
<td>Fomaldehyde</td>
<td>Chemical</td>
<td>BDH</td>
<td>284216N</td>
<td>&nbsp;</td>
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<td>PIPES</td>
<td>Chemical</td>
<td>Sigma</td>
<td>P-6757</td>
<td>&nbsp;</td>
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<td>Sucrose</td>
<td>Chemical</td>
<td>Fisher Scientific</td>
<td>S/8600/53</td>
<td>&nbsp;</td>
<tr>
<td>Triton X-100</td>
<td>Chemical</td>
<td>Sigma</td>
<td>T-6876</td>
<td>&nbsp;</td>
<tr>
<td>Mounting Medium with DAPI</td>
<td>Chemical</td>
<td>Vector Laboratories</td>
<td>H-1200</td>
<td>&nbsp;</td>
<tr>
<td>Fugene 6 Transfection Reagent</td>
<td>Chemical</td>
<td>Roche </td>
<td>11814443001</td>
<td>&nbsp;</td>
<tr>
<td>Histone H1</td>
<td>Antibodies</td>
<td>Santa Cruz</td>
<td>SC-8030</td>
<td>&nbsp;</td>
<tr>
<td>Lamin A/C</td>
<td>Antibodies</td>
<td>Santa Cruz</td>
<td>SC-20681</td>
<td>&nbsp;</td>
<tr>
<td>Tubulin-&alpha;</td>
<td>Antibodies</td>
<td>Santa Cruz</td>
<td>SC-32293</td>
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in situ subcellular fractionation of adherent and non-adherent mammalian cells

Funzione della proteina è intimamente unita alla localizzazione delle proteine. Sebbene alcune proteine ​​sono limitate a una posizione specifica o compartimento subcellulare, molte proteine ​​sono presenti come una popolazione liberamente diffondere in libero scambio con una sotto-popolazione che è strettamente associata a un determinato dominio o struttura subcellulare. Frazionamento subcellulare in situ permette la visualizzazione di compartimentalizzazione delle proteine ​​e può anche rivelare le proteine ​​sotto-popolazioni che si localizzano a strutture specifiche. Per esempio, la rimozione di proteine ​​solubili citoplasmatici e vagamente tenuto proteine ​​nucleari in grado di rivelare l&#39;associazione stabile di alcuni fattori di trascrizione con cromatina. Successiva digestione del DNA possono in alcuni casi rivelano associazione con la rete di proteine ​​e RNA che viene collettivamente definito il nucleare patibolo o matrice nucleare. Qui si descrivono le operazioni necessarie durante il frazionamento in situ di cellule di mammifero aderenti e non aderenti a lamelle microscopio. Visualizzazione di proteine ​​può essere ottenuto utilizzando anticorpi specifici o proteine ​​di fusione fluorescenti e microscopia a fluorescenza. Anticorpi e / o coloranti fluorescenti che agiscono come marcatori per specifici comparti o strutture consentono la localizzazione delle proteine ​​da mappare nel dettaglio. Frazionamento in situ può anche essere combinato con western blotting per confrontare la quantità di proteine ​​presenti in ogni frazione. Questo semplice approccio biochimico in grado di rivelare le associazioni che altrimenti rimarrebbero inosservati.

Watch this Scientific Journal Video about In situ Subcellular Fractionation of Adherent and Non-adherent Mammalian Cells at JoVE.com

In situ Subcellular Fractionation of Adherent and Non-adherent Mammalian Cells

In situ frazionamento subcellulare delle cellule di mammifero su vetrini microscopio permette la visualizzazione della localizzazione delle proteine.

In situ Frazionamento subcellulare di cellule di mammifero aderenti e non aderenti

Protein function is intimately coupled to protein localization. Although some proteins are restricted to a specific location or subcellular compartment, ...

Research

JoVE Journal

Biology

In situ Subcellular Fractionation of Adherent and Non-adherent Mammalian Cells

Trypsinizing and Subculturing Mammalian Cells

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As cells reach confluency, they must be subcultured or passaged. Failure to subculture confluent cells results in reduced mitotic index and eventually in ...

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Clonogenica saggio: cellule aderenti

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Analisi della posizione ciclo cellulare nelle cellule di mammifero

The regulation of cell proliferation is central to tissue morphogenesis during the development of multicellular organisms. Furthermore, loss of control of ...

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mRNA translation plays a central role in the regulation of gene expression and represents the most energy consuming process in mammalian cells. ...

Measurement of Heme Synthesis Levels in Mammalian Cells

La misurazione dei livelli Heme sintesi in cellule di mammifero

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Advances in fluorescent microscopy and cell biology are intimately correlated, with the enhanced ability to visualize cellular events often leading to ...