Name: a modified yeast-one hybrid system for heteromeric protein complex-dna interaction studies
Uploaded: 2017-07-24T15:00:00
Description: Watch this Scientific Journal Video about A Modified Yeast-one Hybrid System for Heteromeric Protein Complex-DNA Interaction Studies at JoVE.com

Vi takker SS Wang, M. Amar og A. Galla for kritisk læsning af manuskriptet. Forskning rapporteret i denne publikation blev støttet af National Institute of General Medical Sciences af National Institutes of Health under tildeling numre RO1GM067837 og RO1GM056006 (til SAK). Indholdet er udelukkende forfatterens ansvar og repræsenterer ikke nødvendigvis de officielle synspunkter af National Institutes of Health.

<html> 1. Konstruer og reporter plasmidpræparation <ol><li> PCR amplificerer promotorregionerne / &quot;fragmenterne&quot; (fortrinsvis ~ 250-500 bp) af mål-DNA&#39;et, der skal analyseres for yderligere kloning i indgangsvektoren under anvendelse af E. coli (TOP10). </li><li> Efter sekventeringsbekræftelse subklone den positive klon i en kompatibel pGLacZi ekspressionsvektor 7 som tidligere beskrevet 8 , 9 , <sup ...

<ol>
	<li>Saghbini, M., Hoekstra, D., Gautsch, J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Media+formulations+for+various+two-hybrid+systems.">Media formulations for various two-hybrid systems.</a> Methods Mol Biol. 177, 15-39 (2001).</li><li>Reece-Hoyes, J. S., Marian Walhout, A. J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Yeast+one-hybrid+assays:+A+historical+and+technical+perspective.">Yeast one-hybrid assays: A historical and technical perspective.</a> Methods. 57 (4), 441-447 (2012).</li><li>Rigaut, G., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=A+generic+protein+purification+method+for+protein+complex+characterization+and+proteome+exploration.">A generic protein purification method for protein complex characterization and proteome exploration.</a> Nat Biotechnol. 17 (10), 1030-1032 (1999).</li><li>Puig, O., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=The+Tandem+Affinity+Purification+(TAP)+Method:+A+General+Procedure+of+Protein+Complex+Purification.">The Tandem Affinity Purification (TAP) Method: A General Procedure of Protein Complex Purification.</a> Methods. 24 (3), 218-229 (2001).</li><li>Gavin, A. -. C., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Functional+organization+of+the+yeast+proteome+by+systematic+analysis+of+protein+complexes.">Functional organization of the yeast proteome by systematic analysis of protein complexes.</a> Nature. 415 (6868), 141-147 (2002).</li><li>Tripathi, P., Carvallo, M., Hamilton, E. E., Preuss, S., Kay, S. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Arabidopsis+B-BOX32+interacts+with+CONSTANS-LIKE3+to+regulate+flowering.">Arabidopsis B-BOX32 interacts with CONSTANS-LIKE3 to regulate flowering.</a> Proc Natl Acad Sci USA. 114 (1), 172-177 (2017).</li><li>Helfer, A., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=LUX+ARRHYTHMO+encodes+a+nighttime+repressor+of+circadian+gene+expression+in+the+Arabidopsis+core+clock.">LUX ARRHYTHMO encodes a nighttime repressor of circadian gene expression in the Arabidopsis core clock.</a> Curr Biol : CB. 21 (2), 126-133 (2011).</li><li>Pruneda-Paz, J. L., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=A+genome-scale+resource+for+the+functional+characterization+of+Arabidopsis+transcription+factors.">A genome-scale resource for the functional characterization of Arabidopsis transcription factors.</a> Cell Rep. 8 (2), 622-632 (2014).</li><li>Wanke, D., Harter, K. <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+Plant+Regulatory+DNA+sequences+by+the+Yeast-One-Hybrid+Assay.">Analysis of Plant Regulatory DNA sequences by the Yeast-One-Hybrid Assay.</a> Methods Mol Biol. 479, 291-309 (2009).</li><li>Klein, P., Dietz, K. -. J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Identification+of+DNA-Binding+Proteins+and+Protein-Protein+Interactions+by+Yeast+One-Hybrid+and+Yeast+Two-Hybrid+Screen.">Identification of DNA-Binding Proteins and Protein-Protein Interactions by Yeast One-Hybrid and Yeast Two-Hybrid Screen.</a> Methods Mol Biol. 639, 171-192 (2010).</li><li>Breton, G., Kay, S. A., Pruneda-Paz, J. L. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Identification+of+Arabidopsis+Transcriptional+Regulators+by+Yeast+One-Hybrid+Screens+Using+a+Transcription+Factor+ORFeome.">Identification of Arabidopsis Transcriptional Regulators by Yeast One-Hybrid Screens Using a Transcription Factor ORFeome.</a> Methods Mol Biol. 1398, 107-118 (2016).</li><li>Deplancke, B., Vermeirssen, V., Arda, H. E., Martinez, N. J., Walhout, A. J. M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Gateway-Compatible+Yeast+One-Hybrid+Screens.">Gateway-Compatible Yeast One-Hybrid Screens.</a> CSH Protoc. 2006 (5), (2006).</li><li>Deplancke, B., Dupuy, D., Vidal, M., Walhout, A. J. M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=A+gateway-compatible+yeast+one-hybrid+system.">A gateway-compatible yeast one-hybrid system.</a> Genome Res. 14 (10B), 2093-2101 (2004).</li></ol>

Den eksisterende Y1H-standardprocedure er egnet til at identificere en enkeltproteinbyttebinding til dens DNA agn. Med forskellige tekniske ændringer er det eksisterende system blevet udnyttet til at definere transkriptionelle regulatoriske netværk. TF&#39;er er imidlertid kendt for at fungere som en del af komplekser involverende to eller flere TF&#39;er eller proteiner, hvor kun nogle af TF&#39;en er i stand til at binde til DNA&#39;et. Proteiner eller TF&#39;er, som kun har de proteinbindende domæner og mangler ev...

<html> Generelt for at forstå protein-DNA-interaktioner er Y1H-assayet det foretrukne system med succes anvendt i en laboratorieindstilling 1 . Det basale Y1H assay involverer to komponenter: a) en reporterkonstruktion med DNA af interesse med succes klonet opstrøms for et gen der koder for et reporterprotein; Og b) en ekspressionskonstruktion, som vil danne et fusionsprotein mellem TF af interesse og et gærtranskriptionsaktiveringsdomæne (AD). DNA&#39;et af interesse betegnes almindeligvis som &#39;agn&#39;, mens fusionsproteinet er kendt som &#39;bytte&#39;. I de forløbne år er flere versioner af Y1H-analysen udviklet til at passe specifikke behov med deres egne fordele 2 . Det eksisterende Y1H assay kan med succes implementeres for at identificere og validere interaktion af et protein ad gangen med dets DNA agn, men mangler evnen til at identificere heterodimere eller multimere protein-DNA-interaktioner. &quot;&gt; Den her beskrevne metode er en modificeret version af den eksisterende Y1H, der muliggør forskere til samtidig at studere flere proteiner, der er bindende til deres mål-DNA-sekvens (er). Målet med dette assay er at udtrykke proteinet af interesse med et aktiveringsdomæne (pDEST22: TF) og evaluere aktiveringen af ​​kandidat-DNA-regionerne fusioneret til en reporter i nærvær og / eller fravær af den interaktive proteinpartner (pDEST32ΔDBD-TF) i gærsystemet. Denne analyse vil tillade os at bestemme, om interaktionen mellem disse to Proteiner er nødvendige for aktivering af målet. Dette er et GATEWAY-kloningskompatibelt system og er derfor muligt at anvende i en regelmæssig laboratorieindstilling. Denne protokol er baseret på direkte transformation, hvilket giver den lette co-transformation af forskellige TF&#39;er i et gærsystem . Det er således en fordelagtig strategi at validere proteinkomplekserne, der binder til deres mulige DNA-mål for in vitro molekylær og funktionel validering fEller ethvert system. Nuværende teknikker såsom Tandem affinitetsrensning (TAP) metoder er dyre og arbejdskrævende, men tillader påvisning af protein hetrokomplekser i stor skala 3 , 4 , 5 . Denne modificerede gær-en-hybrid kan med succes udføres i en regelmæssig laboratorieindstilling i lille skala ( figur 1 ) og er også omkostningseffektiv. Y1.5H-analysen kan lette forskere på tværs af samfundet til at teste og validere deres hypotese til at definere rollen som multimere proteinkompleksbinding til et fælles DNA-mål ved anvendelse af et heterologt system. Baseret på resultaterne kunne hypotesen valideres in vivo i det foretrukne studieprogram. For nylig har vi brugt denne tilgang til at definere rollen som en TF og dens virkemåde til at regulere blomstringen i Arabidopsis 6 .

<table border="0" cellpadding="0" cellspacing="0" width="846">
	<tbody>
		<tr height="21">
			<td height="21" style="height:21px;width:225px;">pDEST22 vector</td>
			<td style="width:132px;">Invitrogen</td>
			<td style="width:157px;">PQ1000101</td>
			<td style="width:332px;">Pro-Quest Two hybrid system kit</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:225px;">pDEST32delatDBD</td>
			<td style="width:132px;">Invitrogen</td>
			<td style="width:157px;">PQ1000102</td>
			<td>Pro-Quest Two hybrid system kit; this vecor is modified. It is pDEST32 minus DNA binding Domain</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:225px;">pENTR/D-TOPO Cloning Kit</td>
			<td style="width:132px;">Invitrogen</td>
			<td style="width:157px;">K240020</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:225px;">YM4271 Strain</td>
			<td style="width:132px;">Clontech</td>
			<td style="width:157px;">K1603-1</td>
			<td>MATCHMAKER One-Hybrid System</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:225px;">pEXP-AD502</td>
			<td style="width:132px;">Invitrogen</td>
			<td style="width:157px;">PQ1000101</td>
			<td>Pro-Quest Two hybrid system kit</td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:225px;">GATEWAY LR Clonase II enzyme mix</td>
			<td style="width:132px;">Invitrogen</td>
			<td style="width:157px;">11791020</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:225px;">YPDA media</td>
			<td style="width:132px;">Clontech</td>
			<td style="width:157px;">630410</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:225px;">SD-Agar</td>
			<td style="width:132px;">Clontech</td>
			<td style="width:157px;">630412</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:225px;">SD minimal media</td>
			<td style="width:132px;">Clontech</td>
			<td style="width:157px;">630411</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:225px;">Uracil DO Supplement</td>
			<td style="width:132px;">Clontech</td>
			<td style="width:157px;">630416</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:225px;">Tryptophan Do Supplement</td>
			<td style="width:132px;">Clontech</td>
			<td style="width:157px;">630413</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:225px;">Tris Base</td>
			<td style="width:132px;">Fisher Scientific</td>
			<td style="width:157px;">BP152-1</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:225px;">EDTA</td>
			<td style="width:132px;">Fisher Scientific</td>
			<td style="width:157px;">S311-500</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:225px;">LiAc</td>
			<td style="width:132px;">Sigma-Aldrich</td>
			<td style="width:157px;">L4158</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:225px;">Saplmon Sperm (10mg/ml)</td>
			<td style="width:132px;">Invitrogen</td>
			<td style="width:157px;">15632011</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:225px;">96 well round bottom Plate</td>
			<td>Greiner bio-one</td>
			<td align="right">650101</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:225px;">PEG3350</td>
			<td style="width:132px;">Sigma-Aldrich</td>
			<td style="width:157px;">1546547</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:225px;">96-deep well block</td>
			<td style="width:132px;">USA Scientific</td>
			<td style="width:157px;">1896-2000</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:225px;">Sealable Foil</td>
			<td style="width:132px;">USA Scientific</td>
			<td style="width:157px;">2923-0110</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:225px;">Araseal</td>
			<td style="width:132px;">Excel Scientific</td>
			<td style="width:157px;">B-100</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:225px;">2-mercaptoethanol</td>
			<td style="width:132px;">Fisher Scientific</td>
			<td style="width:157px;">034461-100</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:225px;">ONPG</td>
			<td style="width:132px;">Sigma-Aldrich</td>
			<td style="width:157px;">73660</td>
			<td></td>
		</tr>
		<tr height="25">
			<td height="25" style="height:25px;">Na2CO3</td>
			<td style="width:132px;">Sigma-Aldrich</td>
			<td style="width:157px;">223484</td>
			<td></td>
		</tr>
		<tr height="25">
			<td height="25" style="height:25px;">Na2HPO4&#160;</td>
			<td style="width:132px;">Sigma-Aldrich</td>
			<td style="width:157px;">S3264</td>
			<td></td>
		</tr>
		<tr height="25">
			<td height="25" style="height:25px;">NaH2PO4&#160;</td>
			<td style="width:132px;">Sigma-Aldrich</td>
			<td style="width:157px;">S3139</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:225px;">KCL</td>
			<td style="width:132px;">Fisher Scientific</td>
			<td style="width:157px;">BP366-500</td>
			<td></td>
		</tr>
		<tr height="25">
			<td height="25" style="height:25px;">MgSO4&#160;</td>
			<td style="width:132px;">Sigma-Aldrich</td>
			<td style="width:157px;">83266</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:225px;">HCL</td>
			<td style="width:132px;">Fisher Scientific</td>
			<td style="width:157px;">SA54-4</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:225px;">Drybath</td>
			<td style="width:132px;">Thermo Fischer</td>
			<td style="width:157px;"></td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:225px;">Voretx</td>
			<td style="width:132px;">Thermo Fischer</td>
			<td style="width:157px;"></td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:225px;">Centrifgue</td>
			<td style="width:132px;">Eppendorf</td>
			<td style="width:157px;">Centrifuge 5810R</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:225px;">Plate Reader</td>
			<td style="width:132px;">Molecular Device</td>
			<td style="width:157px;"></td>
			<td>SPECTRAMAX PLUS Microplate Spectrophotometer</td>
		</tr>
		<tr height="63">
			<td height="63" style="height:63px;width:225px;">Incubator</td>
			<td style="width:132px;">Thermo Fisher</td>
			<td style="width:157px;">Model No. 5250- 37 Degree, 6250-30 degrees</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:225px;">Shaker Incubator</td>
			<td style="width:132px;">New Brunswick</td>
			<td style="width:157px;"></td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:225px;">Water Bath</td>
			<td style="width:132px;">Thermo Fisher</td>
			<td style="width:157px;">IsoTemp 205</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:225px;">Puncher</td>
			<td style="width:132px;"></td>
			<td style="width:157px;"></td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:225px;">50 ml Falocn</td>
			<td style="width:132px;">BD Falcon</td>
			<td style="width:157px;"></td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:225px;">Beaker</td>
			<td style="width:132px;">Nalgene</td>
			<td style="width:157px;"></td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:225px;">Flask</td>
			<td style="width:132px;">Nalgene</td>
			<td style="width:157px;"></td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:225px;">Petriplates (150mm)</td>
			<td style="width:132px;">Greiner bio-one</td>
			<td style="width:157px;"></td>
			<td></td>
		</tr>
	</tbody>
</table>

a modified yeast-one hybrid system for heteromeric protein complex-dna interaction studies

Gennem årene har gær-et-hybrid-analysen vist sig at være en vigtig teknik til identifikation og validering af fysiske interaktioner mellem proteiner som transkriptionsfaktorer (TF&#39;er) og deres DNA-mål. Metoden, der præsenteres her, anvender det underliggende koncept for Y1H, men modificeres yderligere for at studere og validere proteinkomplekser, som binder til deres mål-DNA. Derfor er det omtalt som den modificerede gær-en-hybrid (Y1.5H) -assay. Dette assay er omkostningseffektivt og kan let udføres i en regelmæssig laboratorieindstilling. Selvom der anvendes et heterologt system, kunne den beskrevne metode være et værdifuldt værktøj til at teste og validere den heteromeriske proteinkompleksbinding til deres DNA-mål (er) for funktionel genomik i ethvert system af undersøgelse, især plantegenom.

Den generelle pladeopsætningsfremgangsmåde til co-transformation af DNA-regioner i gærcellerne med protein af interesse ( figur 2 ). Pladesætningen kan modificeres i overensstemmelse med behovet for eksperimentet og antallet af testede DNA-regioner / fragmenter. Efter dag 5 i protokollen skal en velopbygget og positiv plade være synlig som i figur 3 . I vores undersøgelse blev promotorregionen på 2600 bp opstrøms fra sta...

Watch this Scientific Journal Video about A Modified Yeast-one Hybrid System for Heteromeric Protein Complex-DNA Interaction Studies at JoVE.com

A Modified Yeast-one Hybrid System for Heteromeric Protein Complex-DNA Interaction Studies

Et modificeret gær-et hybrid system til studier af heteromere proteinkompleks-DNA-interaktioner

Den modificerede gær-en-hybrid-analyse beskrevet her er en forlængelse af den klassiske gær-en-hybrid (Y1H) -assay for at studere og validere den heteromere proteinkompleks-DNA-interaktion i et heterologt system til enhver funktionel genomisk undersøgelse.

Over the years, the yeast one-hybrid assay has proven to be an important technique for the identification and validation of physical interactions between ...

Research

JoVE Journal

Biochemistry

Method for Identifying Small Molecule Inhibitors of the Protein-protein Interaction Between HCN1 and TRIP8b

Fremgangsmåde til at identificere småmolekylære inhibitorer af protein-protein-vekselvirkning mellem HCN1 og TRIP8b

Hyperpolarization-activated cyclic nucleotide-gated (HCN) channels are expressed ubiquitously throughout the brain, where they function to regulate the ...

Using Scaffold Liposomes to Reconstitute Lipid-proximal Protein-protein Interactions In Vitro

Using Scaffold Liposomes to Reconstitute Lipid-proximal Protein-protein Interactions In Vitro

Brug Stillads Liposomer at Rekonstituer Lipid-proksimal protein-protein interaktioner<em&gt; In vitro</em

Studies of integral membrane proteins in vitro are frequently complicated by the presence of a hydrophobic transmembrane domain. Further complicating ...

Visualization of Protein-protein Interaction in Nuclear and Cytoplasmic Fractions by Co-immunoprecipitation and In Situ Proximity Ligation Assay

Visualization of Protein-protein Interaction in Nuclear and Cytoplasmic Fractions by Co-immunoprecipitation and In Situ Proximity Ligation Assay

Visualisering af protein-protein interaktion i nukleare og Cytoplasmiske Brøker af Co-immunopræcipitation og<em&gt; In Situ</em&gt; Proximity ligeringsassayet

Protein-protein interactions are involved in thousands of cellular processes and occur in distinct spatial context. Traditionally, co-immunoprecipitation ...

Recombinant Protein Expression, Crystallization, and Biophysical Studies of a Bacillus-conserved Nucleotide Pyrophosphorylase, BcMazG

Recombinant Protein Expression, Crystallization, and Biophysical Studies of a Bacillus-conserved Nucleotide Pyrophosphorylase, BcMazG

Rekombinant Protein Ekspression, Krystallisering og Biofysiske Studier af a<em&gt; Bacillus</em&gt; -konserveret nucleotidpyrophosphorylase, BcMazG

To overcome safety restrictions and regulations when studying genes and proteins from true pathogens, their homologues can be studied. Bacillus anthracis ...

A Yeast 2-Hybrid Screen in Batch to Compare Protein Interactions

En gær 2-Hybrid skærm i Batch for at sammenligne Protein interaktioner

Screening for protein-protein interactions using the yeast 2-hybrid assay has long been an effective tool, but its use has largely been limited to the ...

A Fluorescence Fluctuation Spectroscopy Assay of Protein-Protein Interactions at Cell-Cell Contacts

Et fluorescens udsving spektroskopi Assay af Protein-Protein interaktioner på celle-celle kontakter

A variety of biological processes involves cell-cell interactions, typically mediated by proteins that interact at the interface between neighboring ...

High Sensitivity Measurement of Transcription Factor-DNA Binding Affinities by Competitive Titration Using Fluorescence Microscopy

Høj følsomhed måling af transskription faktor-DNA bindende tilhørsforhold ved konkurrencedygtige titrering med Fluorescens mikroskopi

Accurate quantification of transcription factor (TF)-DNA interactions is essential for understanding the regulation of gene expression. Since existing ...

Application of Biolayer Interferometry (BLI) for Studying Protein-Protein Interactions in Transcription

Application of Biolayer Interferometry BLI for Studying Protein-Protein Interactions in Transcription

Anvendelse af Biolayer interferometri (BLI) til undersøgelse af protein-protein interaktioner i transkriptionen

A transcription factor&#160;(TF) is a protein that regulates gene expression by interacting with the RNA polymerase, another TF, and/or template DNA. GrgA ...

Quantification of Protein Interaction Network Dynamics using Multiplexed Co-Immunoprecipitation

Kvantificering af protein interaktions netværk dynamik ved hjælp af Multiplexed Co-Immunopræcipitation

Dynamic protein-protein interactions control cellular behavior, from motility to DNA replication to signal transduction. However, monitoring dynamic ...

Creating Highly Specific Chemically Induced Protein Dimerization Systems by Stepwise Phage Selection of a Combinatorial Single-Domain Antibody Library

Oprettelse af meget specifikke kemisk induceret protein Dimerization systemer ved trinvis Phage udvælgelse af en kombinatorisk enkelt domæne antistof bibliotek