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http://dx.doi.org/10.1007/s10059-009-0013-3

Identification and Molecular Characterization of PERV Gamma1 Long Terminal Repeats  

Huh, Jae-Won (Division of Biological Sciences, College of Natural Sciences, Pusan National University)
Kim, Dae-Soo (Division of Biological Sciences, College of Natural Sciences, Pusan National University)
Ha, Hong-Seok (Division of Biological Sciences, College of Natural Sciences, Pusan National University)
Ahn, Kung (Division of Biological Sciences, College of Natural Sciences, Pusan National University)
Chang, Kyu-Tae (National Primate Research Center, Korea Research Institute of Bioscience and Biotechnology)
Cho, Byung-Wook (Department of Animal Science, College of Life Sciences, Pusan National University)
Kim, Heui-Soo (Division of Biological Sciences, College of Natural Sciences, Pusan National University)
Publication Information
Molecules and Cells / v.27, no.1, 2009 , pp. 119-123 More about this Journal
Abstract
Porcine endogenous retroviruses (PERVs) gamma1 in the pig genome have the potential to act as harmful factors in xenotransplantation (pig-to-human). Long terminal repeats (LTRs) are known to be strong promoter elements that could control the transcription activity of PERV elements and the adjacent functional genes. To investigate the transcribed PERV gamma1 LTR elements in pig tissues, bioinformatic and experimental approaches were conducted. Using RT-PCR amplification and sequencing approaches, 69 different transcribed LTR elements were identified. And 69 LTR elements could be divided into six groups (15 subgroups) by internal variation including tandem repeated sequences, insertion and deletion (INDEL). Remarkably, all internal variations were indentified in U3 region of LTR elements. Taken together, the identification and characterization of various PERV LTR transcripts allow us to extend our knowledge of PERV and its transcriptional study.
Keywords
bioinformatics; LTR element; PERV; Pig; xenotransplantation;
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