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ClonExpress Ultra One Step Cloning Kit is a new generation of recombinant cloning kits, compatible with 1 – 5 fragments homologous recombination. The unique ligase-independent system of this kit significantly reduces the self-ligation background of the vector. Restriction endonuclease sites do not need to be considered. Highly optimized 2 × ClonExpress Mix (It contains enhanced recombinase Exnase) can significantly improve the recombination efficiency and the tolerance to impurities. pCE-Zero vector is compatible with most PCR products, enabling the specific PCR products to be used directly for recombination without any treatments, which significantly simplify the procedure.

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5min Universal Ligation Mix is a ready-to-use 2 × premix. It contains T4 DNA ligase, which catalyzes the formation of adjacent 5´-phosphate ends and 3´-hydroxyl ends on double-stranded DNA or RNA to form phosphodiester bond. This kit is not only suitable for sticky end ligation, but also compatible with DNA ligation with blunt ends and single-base overhanging ends. The optimized ligation enhancer and reaction buffer make the reaction more efficient and convenient. The reaction can be quickly connected at 25°C for 5 minutes. The ligation product can be directly transformed into a variety of chemically competent cells.

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This product is the second-generation TOPO cloning kit, which contains the second-generation Topoisomerase, a vector containing the suicide gene ccdB, and a blunt-end factor. Using the second-generation Topoisomerase, with the most suitable buffer, it has higher activity and further improves the cloning efficiency. The efficient connection is completed in 5 minutes at room temperature. Using a vector containing the suicide gene ccdB, when the insert is successfully connected to the vector, the correct expression of ccdB is destroyed, and the host cell can grow normally, otherwise the host cell cannot grow normally, thus achieving a „Zero” background. The addition of blunt-end factor makes this product compatible with TA cloning and blunt-end cloning.

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Mut Express® II Fast Mutagenesis Kit V2 is a site-directed mutagenesis system based on ClonExpress® rapid cloning technology. Using this kit, the target plasmid amplification product is digested with DpnI, ClonExpress® recombination and circularized, and then directly transformed to complete the site-directed mutation. The kit consists of Phanta® Max Super-Fidelity DNA Polymerase amplification module and ClonExpress® rapid cloning module. The ultra-high fidelity of Phanta® MaxSuper-Fidelity DNA Polymerase significantly reduces the possibility of introducing new mutations during the amplification process. The ClonExpress® rapid cloning system uses efficient homologous recombination to replace the traditional annealing loop reaction. Highly optimized reaction buffers, fast operating procedures and extremely high success rate make Mut Express® II Fast Mutagenesis Kit V2 the first choice for DNA site-directed mutagenesis.

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Mut Express® MultiS Fast Mutagenesis Kit V2 is a site-directed mutagenesis system based on ClonExpress® rapid cloning technology. Using this kit, three to five discrete sites on the target plasmid can be introduced at one time. The kit consists of two The ultra-high fidelity of Phanta® Max significantly reduces the possibility of introducing new mutations during the amplification process. Its excellent long-fragment amplification capability is widely applicable to the amplification of any plasmid with a length less than 20 kb. ClonExpress® rapid cloning System utilizes efficient homologous recombination The reaction replaces the traditional annealing reaction. Therefore, use Mut Express® MultiS site-directed mutagenesis kit for DNA site-directed In the case of mutation, the primer design is more flexible, and the amplification reaction is no longer performed in a linear manner, and the template usage is extremely low, which is beneficial to the original Complete degradation of the basic template. The kit is equipped with Exnase® MultiS, a recombinase optimized for multi-base site-directed mutagenesis, And if the amplified product is specific, the DpnI digested product can be used directly in the recombination reaction without DNA purification. Highly optimized reaction buffer Mut Express® MuiltiS Fast Mutagenesis Kit V2 has become the preferred kit for DNA multipoint mutations.

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Vazyme ClonExpress II One Step Cloning is a simple, fast, and high efficient cloning technology and enables directional insertion of any amplified DNA product into any linearized vector at any site. Firstly, the vector is linearized at the cloning site. A small sequence overlapped with each end of the cloning site is added onto the insert through PCR. The insert and the linearized vector, with overlapped sequences of 15 bp – 20 bp on both 5’- and 3’-end, respectively, are mixed in an appropriate ratio and incubated with recombinase Exnase II at 37℃ for 30 min.
The ClonExpress II is a novel cloning Kit, independent of DNA ligase, significantly reducing the vself-ligated colonies and bringing a true positive rate > 95%. The enhanced Exnase II and highly optimized buffer significantly improve the recombination efficiency and the tolerance to impurities.Both the linearized vector and the PCR products of insert can be directly used for recombination without purification, significantly simplifying the procedures.

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The post ClonExpress II One Step Cloning Kit (C112) appeared first on SEQRS Kft..

ClonExpress® technology is a simple, fast and efficient DNA seamless cloning technology, which can clone the insert into any position of any vector. Use any method to linearize the vector, and perform forward/reverse PCR on the insert. The 5’end of the primer is introduced into the end sequence of the linearized vector, so that the 5’and 3’ends of the PCR product have the same sequence (15 bp-20 bp) as the two ends of the linearized vector. After the PCR product of the sequence and the linearized vector are mixed in a certain proportion, under the catalysis of the recombinase, the reaction can be carried out at 37°C for 30 min to complete the directional cloning.
As a new generation of recombination cloning kit, ClonExpress® MultiS is specifically optimized for multi-fragment recombination reactions, which can realize sequential splicing cloning of up to five inserts at a time. The unique non-ligase-dependent system of the kit greatly reduces the background of vector self-ligation, and does not need to consider the enzyme cleavage site carried by the insert itself; the highly optimized reaction buffer and the enhanced recombinase Exnase MultiS can significantly improve The recombination efficiency of the clone and the tolerance to impurities make it possible to directly use the linearized vector and insert for recombination cloning without purification, which greatly simplifies the experimental steps.

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The post ClonExpress MultiS One Step Cloning Kit (C113) appeared first on SEQRS Kft..

The T4 DNA Ligase catalyzes the formation of a phosphodiester bond between the adjacent 5′-phosphate and 3′-hydroxyl on the blunt or cohesive end of dsDNA. It can also catalyze the linkage of RNA with ssDNA or RNA in double stranded nucleic acids. However, it cannot catalyze linkages between single stranded nucleotides. The T4 DNA Ligase can be used in labelling the 3′-end of RNA, cyclizing RNA and DNA oligonucleotides, cloning of cDNA, and other manipulation of nucleic acids.

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