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Molecular Cloning of a Novel PPEF-1 Gene Variant from a T-Cell Lymphoblastic Lymphoma Cell Line

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To determine if there is a gene variant of protein serine-threonine phosphatase with EF hand (PPEF-1) in T-cell lymphoblastic lymphoma SUP-T1 cell line, both in silico and in vitro approaches were conducted. In silico, a cDNA clone showing similar sequence to PPEF-1 was isolated from the SUP-T1 cDNA library and named PPEF-1V. The full-length of the PPEF-1V cDNA clone is a 2135bp containing a 1503bp open reading frame extending from 188bp to 1690bp, which corresponds to an encoded protein of 501 amino acid residues with a predicted molecular mass of 57.8 kDa. Alignment on both PPEF-1V and PPEF-1 sequences showed that PPEF-1V is a 350bp deletion in the nucleotide sequence of PPEF-1 from 128-477bp and a 152-amino-acid N-terminal deletion in the amino acid sequence of PPEF-1. In vitro, PPEF-1V transcript fragment was only highly expressed in T-cell lymphoblastic lymphoma cell line. In conclusion, the present patent showed that PPEF-1V could be a potential target for diagnosis or treatment of T-cell lymphoblastic lymphoma.

Keywords: Expressed sequence tags; NHL; Nucleotide Sequencing; PPEF-1; PPEF-1V cDNA; PROSITE; Protein serine-threonine phosphatase with EF hand; RT-PCR; RT-PCR Expression; T-cell lymphoblastic lymphoma; T-cell lymphomas; XLOLR cells; cDNA Clones; cancer; gene variant; lymphoblastic lymphoma; n serine-threonine phosphatase with EF hand

Document Type: Research Article


Publication date: April 1, 2012

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  • Recent Patents on DNA and Gene Sequences publishes review articles by experts on recent patents on DNA and gene sequences. A selection of important and recent patents in the field is also included in the journal. The journal is essential reading for all researchers involved in applied molecular biology.

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