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CONSTRUCTION OF CDNA EXPRESSION LIBRARY OF FLAMMULINA VELUTIPES

Kai Zhou

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Abstract

mRNA of Flammulina velutipes was extracted with Quick Prep mRNA Purification Kit, after synthesis of double-strand cDNA molecules using Time Saver cDNA Synthesis Kit, EcoRⅠ/NotⅠadaptors were added to the end of ds cDNA, phosphorylated by T4 polynucleoted kinase. Then the cDNA was ligated with λZAP Express Predigested Vector and packaged to transfect E.Coli XL1-Blue MRF? The results revealed that the tilter of the cDNA library was 4.0×106 pfu/ml, the amplified cDNA library is 2×1010 pfu/ml, the recombinant rate reached to 90%, and the length of inserts were between 0.3-3.5 kb. A candidate cDNA related with flammulin gene was screened by western blotting in situ.

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What this paper is about

mRNA of Flammulina velutipes was extracted with Quick Prep mRNA Purification Kit, after synthesis of double-strand cDNA molecules using Time Saver cDNA Synthesis Kit, EcoRⅠ/NotⅠadaptors were added to the end of ds cDNA, phosphorylated by T4 polynucleoted kinase. Then the cDNA was ligated with λZAP Express Predigested Vector and packaged to transfect E.Coli XL1-Blue MRF? The results revealed that the tilter of the cDNA library was 4.0×106 pfu/ml, the amplified cDNA library is 2×1010 pfu/ml, the recombinant rate reached to 90%, and the length of inserts were between 0.3-3.5 kb. A candidate cDNA related with flammulin gene was screened by western blotting in situ.

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Available abstract

mRNA of Flammulina velutipes was extracted with Quick Prep mRNA Purification Kit, after synthesis of double-strand cDNA molecules using Time Saver cDNA Synthesis Kit, EcoRⅠ/NotⅠadaptors were added to the end of ds cDNA, phosphorylated by T4 polynucleoted kinase. Then the cDNA was ligated with λZAP Express Predigested Vector and packaged to transfect E.Coli XL1-Blue MRF? The results revealed that the tilter of the cDNA library was 4.0×106 pfu/ml, the amplified cDNA library is 2×1010 pfu/ml, the recombinant rate reached to 90%, and the length of inserts were between 0.3-3.5 kb. A candidate cDNA related with flammulin gene was screened by western blotting in situ.

Key concepts: Complementary DNA, cDNA library, Flammulina, Molecular biology, Rapid amplification of cDNA ends, Recombinant DNA, Biology, Gene

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