›› 2009, Vol. 36 ›› Issue (9): 59-62.

• 生物技术 • Previous Articles     Next Articles

Cloning and Sequence Analysis of the cDNA Encoding Primase in Moniezia expansa

LV Ting-de1,2, ZHAO Wen-juan2, ZHU Jian-jun2, WANG Xin-hua2, BO Xin-wen2   

  1. (1.Shihezi University, Shihezi 832000, China; 2.The Breed and Biotechnology Key Laboratory of Sheep in Xinjiang Bingtuan, Shihezi 832000, China)
  • Received:1900-01-01 Revised:1900-01-01 Online:2009-09-20 Published:2009-09-20
  • Contact: BO Xin-wen

Abstract: To clone and identify novel genes from an adult Moniezia expansa (M.expansa) cDNA library, and provide a foundation for further research, a cDNA library was constructed from M.expansa adult stage. Clones were selected randomly from the cDNA library and were sequenced by using the method of expression sequence tags (ESTs). Novel genes were acquired by primer-walking. The cDNA sequence encoding M.expansa primase protein was analyzed, including searching the ORF, translating the nucleotide to protein sequence, similarity searches and secondary structure predication with bioinformatics analysis. Primase genes, 1269 bp and coding for 422 amino acids, was cloned and sequenced, then the sequence was submitted to GenBank and got an accession number,GH291475. The theoretical pI was 4.83 and molecular weight was 47.1598 ku. The full-length cDNA sequence encoding M.expansa primase was obtained, which gave a basis for further functional study of this gene.

Key words: M.expansa; primase; sequence analysis; ESTs

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