CloneJET™ PCR Cloning Kit with DH10B Competent Cells
CloneJET™ PCR Cloning Kit with DH10B Competent Cells
Thermo Scientific™

CloneJET™ PCR Cloning Kit with DH10B Competent Cells

This package includes the CloneJET PCR Cloning Kit (20 or 40 reactions) and DH10B Competent Cells that are optimized forRead more
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Catalog NumberQuantity
K12312020 Reactions
K12324040 Reactions
Catalog number K123120
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1,726.00
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20 Reactions
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Price (CNY)
1,726.00
飞享价
Ends: 31-Dec-2025
2,466.00
Save 740.00 (30%)
Each
Add to cart
This package includes the CloneJET PCR Cloning Kit (20 or 40 reactions) and DH10B Competent Cells that are optimized for use with the kit and can be directly transformed with the ligation product.

CloneJET PCR Cloning Kit
The Thermo Scientific CloneJET PCR Cloning Kit is an advanced positive-selection system for high-efficiency cloning of PCR products generated with any thermostable DNA polymerase. Any blunt or sticky-end DNA fragment can be cloned. The kit works well with both phosphorylated and non-phosphorylated DNA fragments. Ligation into the included positive-selection vector takes only five minutes, yielding more than 99% recombinant clones. Blunt-ended PCR products generated with a proofreading enzyme are ligated directly into the cloning vector.

PCR products generated either with non-proofreading DNA polymerases or mixtures of DNA polymerases need to be blunted prior to ligation in a five minute reaction with the thermostable DNA Blunting Enzyme provided with the kit. DH10B Competent Cells are optimized for use with the CloneJET PCR Cloning Kit and can be directly transformed with the ligation product.

The CloneJET PCR Cloning Kit contains the novel, ready-to-use positive selection cloning vector pJET1.2/blunt. The vector contains a lethal restriction enzyme gene that is disrupted by ligation of a DNA insert into the cloning site. As a result, only bacterial cells with recombinant plasmids are able to form colonies. Re-circularized pJET1.2/blunt vector molecules lacking an insert express a lethal restriction enzyme, which kills the host E. coli cell after transformation. This positive selection drastically accelerates the process of colony screening and eliminates additional costs required for blue/white selection.

Fast—PCR cloning in only five minutes
Highest efficiency—>99% of positive clones
No cloning background—positive selection vector
Versatile—ideal for blunt-end or sticky-end cloning
Economical—no expensive blue/white screening

Applications include:
• Cloning of blunt-end or 3' dA-tailed PCR products up to 10 kb
• Cloning of DNA fragments generated by restriction enzymes
• Sequencing of cloned DNA
• in vitro and in vivo transcription of cloned inserts from the T7 promoter

Learn more about the CloneJET PCR Cloning Kit ›

DH10B Competent Cells
Thermo Scientific DH10B Competent Cells are high efficiency, chemically competent E.coli cells. The DH10B strain is suitable for cloning DNA containing methylcytosine and methyladenine, allowing both prokaryotic and eukaryotic genomic DNA to be cloned efficiently. These cells are ideal for the construction of cDNA libraries using plasmid-derived vectors. Genotype: F– mcrA Δ(mrr-hsdRMS-mcrBC) φ80lacZΔM15 ΔlacX74 recA1 endA1 araD139 Δ (ara-leu)7697 galU galK λ– rpsL(StrR) nupG.

• High transformation efficiency: >1x109 cfu/μg pUC19 DNA
• Suitable for routine and high-throughput cloning applications
• Convenient two reactions per vial packaging
• S.O.C. Outgrowth medium included

Related products
CloneJET PCR Cloning Kit without competent cells
aLICator LIC Cloning and Expression System
For Research Use Only. Not for use in diagnostic procedures.
Specifications
Antibiotic Resistance BacterialAmpicillin (AmpR)
Bacterial or Yeast StrainDH10B
Cell TypeDH10B
Cloning MethodBlunt PCR, Restriction Enzyme ⁄ MCS
Efficiency≥1 x 10^9
For Use With (Application)PCR Cloning
No. of Reactions20 Reactions
Product LineThermo Scientific™
Product TypePCR Cloning Kit
Quantity20 Reactions
Sample TypePCR Products
Shipping ConditionDry Ice
VectorpJET1.2/blunt
FormatKit
Unit SizeEach
Contents & Storage
• 10 x DH10B Competent Cells for Subcloning (100 μL)
• pUC19 DNA (20 μL) (100 pg/μL)
• S.O.C. Medium (5 mL)
• pJET1.2/blunt Cloning Vector (24 μL) (50 ng/μL)
• 2X Reaction Buffer (300 μL)
• T4 DNA Ligase (24 μL) (5 U/μL)
• DNA Blunting Enzyme (24 μL)
• DNA Blunting Enzyme (24 μL)
• pJET1.2 Forward Sequencing Primer, 10 μM aqueous solution (50 μL)
• pJET1.2 Reverse Sequencing Primer, 10 μM aqueous solution (50 μL)
• Control PCR Product, 976 bp with 3’-dA overhangs (8 μL) (24 ng/μL)
• Water, nuclease-free, (1.25 mL)

Frequently asked questions (FAQs)

Can I use the vector pJET1.2 for protein expression?

The pJET1.2 vector is not specifically designed for protein expression. It contains the T7 RNA promoter for in vitro transcription of the cloned insert. In some cases, this T7 promoter can be used for non-toxic gene expression in bacterial strains having IPTG inducible T7 RNA polymerase (like E. coli BL21); however, the promoter does not contain regulatory elements and protein expression will not be well regulated.

What are expected results of colony PCR when screening clones from the CloneJET kit?

Using pJET1.2 Forward and Reverse Sequencing Primers in PCR (as described in the protocol), negative colonies would yield PCR products that are about 120 bp long. Positive colonies would yield longer PCR products that should reflect the insert size (with addition of 120 bp from the vector).

Where can I expect the insert in the pJET1.2/blunt cloning vector after successful cloning?

The insert can be expected at the Eco32I (EcoRV) site in the vector at the position 369 since the pJET1.2/blunt cloning vector was linearized with Eco32I.

What type of DNA fragments can be cloned into the pJET1.2/blunt vector?

Any DNA fragment (either blunt- or sticky-end) that is 6 bp to 10 kb long and generated from PCR or restriction digestion, can be successfully cloned using the kit.

Do I need phosphorylated PCR Primers for CloneJET PCR Cloning Kit?

Phosphorylation of the PCR primers is not required since the 5'-ends of the pJET1.2/blunt vector contain phosphoryl groups for ligation.