Element:RTvr2

Description RTvr1 and RTvr2 are two Ty1/Copia-like retrotransposons characterized in the genome of the mung bean (Vigna radiata) (Xiao et al. 2007). They have been the first complete elements to be reported in this legume. RTvr2, is taken as a reference sequence as RTvr1 and RTvr2 elements display each other 92% of similarity (Xiao et al. 2007).Phylogenetic analyses reveal how this element belongs to Tork clade within the Branch 2 of Ty1/Copia family (Llorens et al. 2009). RTvr2 genome is 7837 bp in size, including a 677-bp 5’LTR and a 676-bp 3’LTR that flank an internal coding region. The translated region reveals the presence of several stop codons therefore the putative Ty1/Copia-like gag and pol polyproteins derive from frameshiftings at certain positions (Xiao et al. 2007). A Primer Binding Site (PBS) and a Polypurine tract (PPT) are respectively downstream and upstream the 5’LTR and 3’LTR. 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: 59380637 Clade: Tork Cluster or genus: Undetermined Branch or class: Branch 2 Family: Ty1/Copia System: LTR retroelements Host: Explore the Tree Life Project Vigna radiata Wikimedia, courtesy of "Sarefo" Browse all elements