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T-carrier

A vector, -CTGNN technology, applied in the field of vectors for cloning DNA PCR fragments, can solve problems such as low efficiency of PCR products

Inactive Publication Date: 2008-04-09
SHANTOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Directly using the blunt end ligation method to clone such PCR products is very inefficient. The solution is: firstly, eliminate the protruding bases at the 3′ end and turn the PCR product into blunt end DNA to improve the cloning efficiency, which will take a lot of time

Method used

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  • T-carrier

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0027] 1. Design the following PCR primers according to the T-vector primer design idea,

[0028] forward primer: Ftv 5’-ACTGGTACCTGACAGTGAGTC

[0029] TAGCTGTTTCCTGTGTGAAAT-3', wherein GGTACC and GACAGTGAGTC are the recognition sites of restriction endonucleases KpnI and Eam1105I (AhdI) respectively.

[0030] reverse primer: Rtv: 5’-ACTGAGCTCTGACAGTGAGTC

[0031] GGCCTTTTTACGGTTCCTGG-3', wherein GAGCTC and GACAGTGAGTC are the recognition sites of restriction endonucleases SacI and Eam1105I (AhdI) respectively.

[0032] 2. Using pBluescript II SK (-) as a template, use the above two primers to amplify the DNA fragment (see 3 for the sequence). The amplified DNA fragment was separated, purified, digested with KpnI and SacI, and then ligated with pBluescript II SK(-) which had undergone the same digestion in advance.

[0033] 3. The DNA fragment sequence (pBS: 1199-816bp) amplified by the primers used in this example

[0034] tagct gtttcctgtg tgaaattgtt atccgctcac aattccaca...

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Abstract

The invention pertains to the molecular biology and biotechnology field and provides a T-carrier. The invention designs that the restriction sites of restriction enzyme Eam1105I or AhdI complements adhesive end with 3' A through restriction and is then inserted into a cloning carrier. The cloning carrier prepared according to the invention is characterized by high efficiency.

Description

technical field [0001] The invention relates to a carrier for cloning DNA PCR fragments, in particular to a T-vector fragment terminal nucleotide sequence. Background technique [0002] DNA cloning is an important technology in modern life science research. Cloning of specific genes is an important step in functional studies. The combination of PCR technology and DNA cloning greatly simplifies the steps of cloning a specific gene and shortens the time for cloning a specific gene, which not only greatly promotes the development of life sciences, but also has great application value in the fields of rapid diagnosis of diseases. [0003] PCR is an experimental method commonly used in biological and medical research to amplify DNA templates. Taq DNA Polymerase, which is commonly used in PCR, not only has the activity of replicating templates along the 5′ to 3′ direction at high temperature and prolonging DNA primers, but also can add one to several adenosine A to the 3′ end of...

Claims

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Application Information

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IPC IPC(8): C12N15/63
Inventor 王子元刘文宽李伟杰谷福
Owner SHANTOU UNIV
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