Construction and identification of human tissue kallikrein gene eukaryotic expressing vector

Yong Dai; Wujian Peng; Tiyuan Li; Hong Du; Wenxue Sun; Deheng Chen; Zhuojia Xu

doi:10.1007/s11596-007-0214-y

Current Medical Science ›› 2007, Vol. 27 ›› Issue (14) : 164 -166. DOI: 10.1007/s11596-007-0214-y

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Construction and identification of human tissue kallikrein gene eukaryotic expressing vector

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Abstract

To clone and sequence the human tissue kallikrein gene of Chinese, and to construct eukaryotic expression recombinant of KK, total RNA was extracted from human pancreas and human tissue kallikrein gene cDNA was amplified by PCR after reverse-transcription by using Oligo(dT) primer. The original kallikrein cDNA was recovered and filled with Klenow enzyme and inserted into KS plasmid. After restriction endonuclease digestion, KK cDNA was sequenced by ABI377 analyzer. Then the KK gene was amplified from pBluescript KSKK and inserted into pcDNA3. A sequence comparison showed that the cloned kallikrein gene was only one nucleotide different from that reported in the Genbank. The coding amino acid was Asp in the Genbank gene, while the coding amino acid of Chinese kallikrein gene was Asn. The KK cDNA fragment was inserted into the eukaryotic expression vector pcDNA3. The cloned kallikrein gene and the pcDNA3KK can be used for further study in gene therapy.. .

Keywords

kallikrein / gene / cloning / vector / sequence analysis

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Yong Dai, Wujian Peng, Tiyuan Li, Hong Du, Wenxue Sun, Deheng Chen, Zhuojia Xu. Construction and identification of human tissue kallikrein gene eukaryotic expressing vector. Current Medical Science, 2007, 27(14): 164-166 DOI:10.1007/s11596-007-0214-y

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