ADN polymérase <i>Taq</i>, recombinante
Invitrogen™

ADN polymérase Taq, recombinante

L’ADN polymérase Taq est une enzyme thermostable, qui permet de synthétiser l’ADN des modèles premier brins en présence de dNTPAfficher plus
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RéférenceNbre de réactions
10342053100 réactions
10342020500 réactions
103420461500 réactions
103421785000 réactions
Référence 10342053
Prix (EUR)
88,00
Each
Nbre de réactions:
100 réactions
Grand volume ou format personnalisé
Prix (EUR)
88,00
Each
L’ADN polymérase Taq est une enzyme thermostable, qui permet de synthétiser l’ADN des modèles premier brins en présence de dNTP et d’une amorce. Cette enzyme est constituée d’un polypeptide unique, dont le poids moléculaire est de 94 kDa. Elle présente une activité d’ADN polymérase 5´→3´ et une activité d’exonucléase 5´→3´

Avec notre ADN polymérase Taq, vous obtenez :

• Votre choix d’enzymes recombinantes ou natives
• Amplification des produits PCR jusqu’à 5 kb
• Une enzyme sous licence et qualifiée pour PCR

Applications
L’ADN polymérase Taq convient à l’amplification d’ADN provenant de génomiques complexes, de modèles viraux et plasmidiques, de RT-PCR, le séquençage de l’ADNsb et le séquençage cyclique.

Source
L’enzyme recombinante est purifiée à partir du gène cloné de l’ADN polymérase Thermus aquaticus exprimé dans E. coli.

Définition d’unité
Une unité d’ADN polymérase Taq est la quantité d’enzyme nécessaire pour incorporer 10 nmol de désoxyribonucléotide dans l’ADN en 30 min à 74°C.

Pour des performances PCR supérieures, nous recommandons l’ADN polymérase DreamTaq.
Usage exclusivement réservé à la recherche. Ne pas utiliser pour des procédures de diagnostic.
Spécifications
Activité exonucléasique5’ à 3’
Fidélité (par rapport à Taq)1 X
FormatEnzyme autonome
Hot StartNon
Nbre de réactions100 réactions
En surplomb3’-A
PolyméraseADN polymérase Taq
Type de produitADN polymérase
Quantité100 unités
Format de réactionComposants séparés
Conditions d’expéditionHomologué pour des expéditions sur de la glace carbonique ou mouillée
Taille (produit final)5 kb ou moins
Matériau de départADN
Concentration5 U/μl
À utiliser avec (application)Standard PCR
GC-Rich PCR PerformanceFaible
Méthode PCRqPCR, PCR standard
Vitesse de réactionÉtalon
Unit SizeEach
Contenu et stockage
Contenu :
• 20 μl d’ADN polymérase Taq (5 U/μl)
• 1,25 ml de tampon de PCR 10X (200 mM de Tris-HCl pH 8,4, 500 mM de KCl)
• 1 ml de chlorure de magnésium (50 mM)

Conserver entre -30°C et -10°C dans un congélateur sans système de dégivrage. Garantie stable pendant 6 mois sous réserve d’un stockage correct.

Foire aux questions (FAQ)

My oligonucleotide does not appear to be the right length when I checked by gel electrophoresis. Why is this?

Oligos should be run on a polyacrylamide gel containing 7 M urea and loaded with a 50% formamide solution to avoid compressions and secondary structures. Oligos of the same length and different compositions can electrophorese differently. dC's migrate fastest, followed by dA's, dT's, and then dG's. Oligos containing N's tend to run as a blurry band and generally have a problem with secondary structure.

The primers I am using worked for PCR initially, but over time, have stopped working. What happened?

Primers should be aliquoted for single use before PCR set-up. Heat just the aliquoted primers to 94 degrees for 1 min. Quick chill the primer on ice before adding to the PCR reaction. Some primers may anneal to themselves or curl up on themselves.

I don't see a pellet in my oligo tube order. Should I ask for a replacement?

The drying method dries the primer in a thin layer along the sidewalls of the tube instead of the bottom, therefore a pellet is not always visible and should still be ready to use.

There is a ball-shaped pellet at the bottom of my oligo tube. What is this and can I still use my oligo?

If the oligo was overheated, it will appear as a “ball”-shaped pellet attached to the bottom of the tube. This should not affect the quality of the oligo, and the oligo should be readily soluble in water.

There is a green color in my lyophilized oligo. Can I still use it?

If an oligo appears green in color, this is most likely due to ink falling into the tube. The oligo should still be fully functional. The color can be removed by doing an ethanol precipitation.

Citations et références (8)

Citations et références
Abstract
Both DNA and histone fold sequences contribute to archaeal nucleosome stability.
Authors: Bailey Kathryn A; Marc Frederic; Sandman Kathleen; Reeve John N;
Journal:J Biol Chem
PubMed ID:11751933
'The roles and interdependence of DNA sequence and archaeal histone fold structure in determining archaeal nucleosome stability and positioning have been determined and quantitated. The presence of four tandem copies of TTTAAAGCCG in the polylinker region of pLITMUS28 resulted in a DNA molecule with increased affinity (DeltaDeltaG of approximately 700 ... More
CCAAT/enhancer-binding proteins beta and delta mediate the repression of gene transcription of cartilage-derived retinoic acid-sensitive protein induced by interleukin-1 beta.
Authors: Okazaki Ken; Li Jian; Yu Hua; Fukui Naoshi; Sandell Linda J;
Journal:J Biol Chem
PubMed ID:12072435
'Cartilage-derived retinoic acid-sensitive protein (CD-RAP) is a secreted protein expressed by chondrocytes; the expression is repressed by interleukin 1 beta (IL-1 beta). To investigate the transcriptional mechanism, by which CD-RAP expression is suppressed by IL-1 beta, deletion constructs of the mouse CD-RAP promoter were transfected into rat chondrocytes treated with ... More
alpha-Methylacyl coenzyme A racemase as a tissue biomarker for prostate cancer.
Authors: Rubin Mark A; Zhou Ming; Dhanasekaran Saravana M; Varambally Sooryanarayana; Barrette Terrence R; Sanda Martin G; Pienta Kenneth J; Ghosh Debashis; Chinnaiyan Arul M;
Journal:JAMA
PubMed ID:11926890
'Edited due to space constraints: CONTEXT: Molecular profiling of prostate cancer has led to the identification of candidate biomarkers and regulatory genes. Discoveries from these genome-scale approaches may have applicability in the analysis of diagnostic prostate specimens. OBJECTIVES: To determine the expression and clinical utility of alpha-methylacyl coenzyme A racemase ... More
The Salmonella enterica serovar typhimurium-encoded type III secretion systems can translocate Chlamydia trachomatis proteins into the cytosol of host cells.
Authors:Ho TD, Starnbach MN,
Journal:Infect Immun
PubMed ID:15664932
Chlamydia trachomatis is an obligate, intracellular pathogen that is a major cause of preventable blindness and infertility worldwide. Although the published genome sequence suggests that C. trachomatis encodes a type III secretion system, the lack of genetic tools for studying Chlamydia has hindered the examination of this potentially important class ... More
Requirement for either a host- or pectin-induced pectate lyase for infection of pisum sativum by nectriahematococca.
Authors:Rogers LM, Kim YK, Guo W, Gonzalez-Candelas L, Li D, Kolattukudy PE
Journal:Proc Natl Acad Sci U S A
PubMed ID:10931947
Fungal pathogens usually have multiple genes that encode extracellular hydrolytic enzymes that may degrade the physical barriers in their hosts during the invasion process. Nectria hematococca, a plant pathogen, has two inducible pectate lyase (PL) genes (pel) encoding PL that can help degrade the carbohydrate barrier in the host. pelA ... More