Element:1731

Description 1731 is a Ty1/Copia LTR retrotransposon characterized in Drosophila melanogaster (Fourcade-Peronnet et al. 1988). It belongs and gives the name to 1731 clade within Branch 2 of the Ty1/Copia family (Llorens et al. 2009). 1731 is 4648 bp in size, including two 336-bp LTRs. This element contains a Primer Binding Site (PBS) for a tRNAiMet, two overlapping Open Reading Frames (ORFs) showing the typical gag and pol domains of Ty1/Copia LTR retrotransposons and a final Polypurine Tract (PPT). The first ORF corresponds to the gag gene, while the second displays the characteristic pol gene structure (protease, integrase, reverse transcriptase and ribonuclease H) (Fourcade-Peronnet et al. 1988; Ziarczyk and Best-Belpomme 1991). Structure Figure not to scale. If present, long terminal repeats (LTRs) have been highlighted in blue. Amino acid motifs noted with lines indicate the conserved residues in each protein domain, abbreviations below mean: MA=matrix PR=protease DU or DUT=dUTPase TM=transmembrane TAV or IBMP=transactivator/viroplasmin or inclusion body matrix protein CA=capsid RT=reverse transcriptase INT=Integrase CHR=chromodomain NC=nucleocapsid RH=RNaseH SU=surface MOV=movement protein PPT=polypurine tract PBS=primer binding site ATF=aphid transmission factor VAP=virion associated protein Related literature Mobile DNA II. (Craig et al. 2002)

Genbank accession: 8700 Clade: 1731 Cluster or genus: Undetermined Branch or class: Branch 2 Family: Ty1/Copia System: LTR retroelements Host: Explore the Tree Life Project Drosophila melanogaster Image, courtesy of Andreas Trepte, Max-Planck Institute for Molecular Genetics Browse all elements