PMID: 25726590Mar 3, 2015Paper

Molecular cloning and localization of Leishmania donovani expression site associated genes-like protein

Zhongguo ji sheng chong xue yu ji sheng chong bing za zhi = Chinese journal of parasitology & parasitic diseases
Peng LiuBao-Qian Jing

Abstract

To clone the novel gene that specifically expressed in the amastigotes of Leishmania donovani, and observe subcellular localization of the gene encoding protein. mRNA from promastigotes and amastigotes of L. donovani were prepared. The novel expressed sequence tag of amastigotes was selected by suppression subtractive hybridization. The expression of the novel gene in different stages of L. donovani was detected by Northern hybridization and semi-quantitative RT-PCR. The subcellular localization of the novel gene encoding protein was observed. The subtractive library of the specifically expressed sequence tag of amastigotes was constructed, and a novel gene designated as expression site associated genes-like protein (ESAGLP) gene was cloned. The full length of ESAGLP cDNA was 2,258 bp. The open-reading frame encoded a polypeptide of 620 amino acid residues. ESAGLP gene expressed only in amastigotes, the encoding protein was localized in the mitochondria. The ESAGLP gene is identified as a novel gene which specifically expressed in Leishmania donovani amastigotes, and its encoding protein is localized in the mitochondria.

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