The fugitive LTR retrotransposon from the genome of the human blood fluke, Schistosoma mansoni

TY - JOUR

T1 - The fugitive LTR retrotransposon from the genome of the human blood fluke, Schistosoma mansoni

AU - Laha, Thewarach

AU - Loukas, Alex

AU - Smyth, Danielle J.

AU - Copeland, Claudia S.

AU - Brindley, Paul J.

PY - 2004/11

Y1 - 2004/11

N2 - Inspection of the nucleotide sequence of bacterial artificial chromosome number 49_J_14 [Le Paslier, M.C., Pierce, R.J., Merlin, F., Hirai, H., Wu, W., Williams, D.L., Johnston, D., LoVerde, P.T., Le Paslier, D., 2000. Construction and characterization of a Schistosoma mansoni bacterial artificial chromosome library. Genomics 65, 87-94] from chromosome 1 of the genome of Schistosoma mansoni (GenBank AC093105) revealed the likely presence of a proviral form of a novel schistosome retrotransposon. The novel element, which we named the fugitive, belonged to the mag-like family of the gypsy-Ty3 clade of long terminal repeat retrotransposons. It was closely related to the mag-like retrotransposon Gulliver from Schistosoma japonicum, but was dissimilar to several other long terminal repeat retrotransposons known from S. mansoni including Boudicca, Saci-1, Saci-2 and Saci-3. The full length fugitive element was 4811 bp constituted of a single read-through open reading frame of 4134 bp flanked at both ends by identical long terminal repeat sequences of 273 bp. The open reading frame encoded retroviral-like gag, with a distinctive double Cys-His motif, and pol polyprotein, with a pol domain order of protease, reverse transcriptase, RNaseH and integrase. Examination of schistosome transcriptome sequences in the public domain revealed that the fugitive was transcribed in at least six developmental stages of S. mansoni, while bioinformatics approaches and Southern hybridisation analysis indicated that as many as 2000 copies of the fugitive were interspersed throughout the schistosome genome.

AB - Inspection of the nucleotide sequence of bacterial artificial chromosome number 49_J_14 [Le Paslier, M.C., Pierce, R.J., Merlin, F., Hirai, H., Wu, W., Williams, D.L., Johnston, D., LoVerde, P.T., Le Paslier, D., 2000. Construction and characterization of a Schistosoma mansoni bacterial artificial chromosome library. Genomics 65, 87-94] from chromosome 1 of the genome of Schistosoma mansoni (GenBank AC093105) revealed the likely presence of a proviral form of a novel schistosome retrotransposon. The novel element, which we named the fugitive, belonged to the mag-like family of the gypsy-Ty3 clade of long terminal repeat retrotransposons. It was closely related to the mag-like retrotransposon Gulliver from Schistosoma japonicum, but was dissimilar to several other long terminal repeat retrotransposons known from S. mansoni including Boudicca, Saci-1, Saci-2 and Saci-3. The full length fugitive element was 4811 bp constituted of a single read-through open reading frame of 4134 bp flanked at both ends by identical long terminal repeat sequences of 273 bp. The open reading frame encoded retroviral-like gag, with a distinctive double Cys-His motif, and pol polyprotein, with a pol domain order of protease, reverse transcriptase, RNaseH and integrase. Examination of schistosome transcriptome sequences in the public domain revealed that the fugitive was transcribed in at least six developmental stages of S. mansoni, while bioinformatics approaches and Southern hybridisation analysis indicated that as many as 2000 copies of the fugitive were interspersed throughout the schistosome genome.

KW - Genome

KW - Gulliver

KW - Mobile genetic element

KW - Retrotransposon

KW - Reverse transcriptase

KW - Schistosome

UR - https://www.scopus.com/pages/publications/7944222696

U2 - 10.1016/j.ijpara.2004.08.007

DO - 10.1016/j.ijpara.2004.08.007

M3 - Article

C2 - 15542097

AN - SCOPUS:7944222696

SN - 0020-7519

VL - 34

SP - 1365

EP - 1375

JO - International Journal for Parasitology

JF - International Journal for Parasitology

IS - 12

ER -