ACTA AGRICULTURAE BOREALI-SINICA ›› 2016, Vol. 31 ›› Issue (3): 32-37. doi: 10.7668/hbnxb.2016.03.005

Special Issue: Biotechnology

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Cloning and Functional Analysis of the Lectin Gene in Pinellia peltata

YANG Zaijun1, LIU Lingling1,2, PENG Zhengsong1   

  1. 1. College of Life Science, China West Normal University, Key Laboratory of Southwest China Wildlife Resources Conservation, Ministry of Education, Nanchong 637009, China;
    2. Bioengineering College, Chongqing University, Key Laboratory of Biorheological Science and Technology, Ministry of Education, Chongqing 400044, China
  • Received:2016-03-12 Published:2016-06-28

Abstract: To clone a lectin gene from Pinellia peltata and analyze its bioactivity.A lectin gene,designated as ppl, was cloned by using RACE in Pinellia peltata .The open reading frame (ORF) of P.peltata lectin (ppl) was constructed into the pET-28a vector.A recombinant protein about 33 kDa in the Escherichia coli BL21 was induced.The purified recombinant protein was used blood coagulation experiment and anticancer experiment in vitro .The full-length cDNA of ppl was 1 504 bp,and contained an 813 bp ORF with a deduced amino acid sequence of 270 residues.The putative PPL protein contained three mannose binding site.The PPL had clotting activity,and this activity could be inhibited by mannose.The result of anticancer experiment in vitro showed that the PPL could inhibit the growth of nasopharyngeal carcinoma cell (CNE),human cervical carcinoma cell (Hela) and human breast cancer cell (Bcap-37).These results were useful for further determination of the function of P.peltata lectin protein (PPL).

Key words: Pinellia peltata, Lectin, Gene cloning, Functional analysis

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Cite this article

YANG Zaijun, LIU Lingling, PENG Zhengsong. Cloning and Functional Analysis of the Lectin Gene in Pinellia peltata[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2016, 31(3): 32-37. doi: 10.7668/hbnxb.2016.03.005.

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