70636 pETBlue-2 Perfectly Blunt® Cloning Kit - Novagen

View Pricing & Availability


Replacement Information

Pricing & Availability

Catalog Number AvailabilityPackaging Qty/Pack Price Quantity
Retrieving availability...
Limited AvailabilityLimited Availability
Limited Quantities Available
    Remaining : Will advise
      Remaining : Will advise
      Will advise
      Contact Customer Service
      Contact Customer Service

      Plastic ampoule 20 rxn
      Retrieving price...
      Price could not be retrieved
      Minimum Quantity needs to be mulitiple of
      Upon Order Completion More Information
      You Saved ()
      Request Pricing
      OverviewThe Perfectly Blunt® Cloning Kits are designed for simplified cloning of DNA generated by PCR using any type of DNA polymerase. This approach enables the use of high-fidelity proofreading enzymes for amplification, thus decreasing the probability of generating mutations in the target sequence. In addition, under many conditions blunt cloning is more efficient than T-cloning, most likely due to the observation that the efficiency of single dA addition by Taq DNA polymerase varies significantly depending on the sequence context of the DNA ends, and even the number of PCR cycles performed (Novy 1996, Clark 1998, Brownstein 1996, Magnuson, 1996, Hu 1993).

      With the Perfectly Blunt cloning protocol, you can go from PCR product to plating transformants in less than one hour with minimal hands-on time. The finished PCR product is converted to a blunt, phosphorylated form in a 15-minute reaction using premixed reagents. Following a 5-minute heat inactivation step, the treated insert is combined with the ready-to-use vector and ligated in an optimized 15-min reaction. An exclusive 8-minute transformation procedure using highly efficient NovaBlue Singles™ Competent Cells (Cat. No. 70181) generates recombinant colonies that are easily visualized by blue/white screening.

      Note that the Perfectly Blunt method is not limited to cloning PCR products; these kits are also suitable for cloning restriction fragments, cDNA, or sheared DNA with the same protocols.

      Seven different vectors are available in Perfectly Blunt® Cloning Kits. Vector choices include those designed for general cloning, sequencing, optimal in vitro transcription/translation, and optimal protein expression in E. coli. Each vector is available in a kit containing sufficient reagents for 10, 20, or 40 reactions.

      “Vector only” kits are also available in 20- and 40-reaction sizes without ligase and competent cells. For higher-efficiency competent cells, also consider the pSTBlue-1 Perfectly Blunt Giga Cloning Kit (Cat. No. 71229).

      The pETBlue™-2 vector is designed to identify recombinants by traditional blue/white screening while also allowing T7lac promoter based expression of target genes. Screening is independent of expression because the T7lac expression promoter is in an opposed orientation relative to the E. coli promoter that mediates blue/white screening. pETBlue-2 defines the open reading frame and inserts must be cloned in-frame if expression is desired. The vector features an expanded multiple cloning site (MCS) and optional C-terminal HSV•Tag® and His•Tag® sequences. The sequence is numbered from the first base of the T7 promoter sequence.

      In addition to the pETBlue™ Systems, which contain uncut plasmids, pETBlue vectors are available in formats ready for insertion of PCR products. Two types of kits are available:
      AccepTor™ Vector Kits and Perfectly Blunt® Cloning Kits. The AccepTor Vector Kit enables direct insertion of DNA containing single 3′-dA overhangs, such as those amplified with non-proofreading DNA polymerases (e.g., NovaTaq™ DNA Polymerase), while the Perfectly Blunt Cloning Kits are designed for cloning inserts having any type of DNA end.

      Commercial use of this Product requires a commercial license from EMD Millipore Corporation. Commercial use shall include but not be limited to (1) use of the Product or its components in manufacturing; (2) use of the Product or its components to provide a service, information, or data to others in exchange for consideration; (3) use of the Product or its components (or any derivatives thereof) for therapeutic, diagnostic or prophylactic purposes (including as part of a device, chip, assay or other product); or (4) resale of the Product or its components, whether or not such Product or its components are resold for use in research. Nothing contained herein shall be deemed to represent or warrant that additional third party rights are not required for use of this Product.
      Catalogue Number70636
      Brand Family Novagen®
      Features and benefits
      • No restriction enzymes or special primers
      • Compatible with any DNA polymerase
      • Independent of 3ʹ-dA addition or sequence context of DNA ends
      • Blue/white screening with seven different vectors, including pETBlue expression vectors
      • Simple protocol takes less than one hour* from PCR product to plating transformants

      * All times listed refer to kits using NovaBlue Singles™ Competent Cells and ampicillin or chloramphenicol selection. Giga kits, which use NovaBlue GigaSingles™ Competent Cells, require one hour for outgrowth.


      Novy, R.E., et al. 1996. inNovations 6, 7. Clark, J.M. 1988. Nucleic Acids Res. 16, 9677. Brownstein, J.M., et al. 1996. BioTechniques 20, 1004. Magnuson, V.L., et al. 1996. BioTechniques 21, 700. Hu, G. 1993. DNA and Cell Biology 12, 763.

      Product Information
      Quality LevelMQ100
      Biological Information
      Physicochemical Information
      Materials Information
      Toxicological Information
      Safety Information according to GHS
      Safety Information
      Product Usage Statements
      Storage and Shipping Information
      Ship Code Dry Ice Only
      Toxicity Multiple Toxicity Values, refer to MSDS
      Storage ≤ -70°C
      Do not freeze Ok to freeze
      Packaging Information
      Transport Information
      Supplemental Information


      pETBlue-2 Perfectly Blunt® Cloning Kit - Novagen Certificates of Analysis

      TitleLot Number


      Reference overview

      Novy, R.E., et al. 1996. inNovations 6, 7. Clark, J.M. 1988. Nucleic Acids Res. 16, 9677. Brownstein, J.M., et al. 1996. BioTechniques 20, 1004. Magnuson, V.L., et al. 1996. BioTechniques 21, 700. Hu, G. 1993. DNA and Cell Biology 12, 763.


      The Complete Molecular Biology Toolkit - Expert workflow solutions from DNA cloning to protein expression (MilliporeSigma)


    • Michelle B. Ryndak, et al. (2005) Role of predicted transmembrane domains for type III translocation, pore formation, and signaling by theYersinia pseudotuberculosis YopB protein. Infection and Immunity 73, 2433-2443.
    • Yue Zhang, et al. (2005) Inhibition of MAPK and NF-κB pathways is necessary for rapid apoptosis in macrophages infected with Yersinia. Journal of Immunology 174, 7939-7949.
    • Céline Pujol and James B. Bliska. (2003) The ability to replicate in macrophages Is conserved between Yersinia pestis and Yersinia pseudotuberculosis. Infection and Immunity 71, 5892-5899.
    • Yasuyo Yamazaki, et al. (2003) Camptothecin biosynthetic genes in hairy roots of Ophiorrhiza pumila: cloning, characterization and differential expression in tissues and by stress compounds. Plant and Cell Physiology 44, 395-403.
    • User Protocols

      TB183 Perfectly Blunt® Cloning Kits

      Vector Map

      TB259VM pETBlue™-2 Vector Map

      Related Products & Applications

      Related Products

      Related Products

      Catalog Number Description  
      70635 Introductory pETBlue-2 Perfectly Blunt® Cloning Kit - Novagen Show Pricing & Availability

      Related Products By: Application Facete

      Related Products By: Brand Facete


      Life Science Research > Genomic Analysis > Transfection and Protein Expression > Bacterial Expression > Bacterial Expression Vectors
      Life Science Research > Genomic Analysis > DNA Preparation & Cloning > Cloning > Cloning Kits