Element:RetroSor1

Description RetroSor1 is a LTR retrotransposon described from sequencing data in Sorghum bicolor (Llaca et al. 1998). This element belongs to a lineage of plant LTR retrotransposons (Tat), sibling of other lineage of putative plant endogenous retroviruses (Athila), providing evidence of a shared ancestral lineage originally described as class A by Wright and Voytas (1998). The genomic structure of RetroSor1 is 13.4 Kb in size including LTRs of 0.7 Kb. The internal region displays a Primer Binding Site (PBS) complementary to a tRNALys, a single Open Reading Frame (ORF) coding for a gag-pol polyprotein, a untranslated (UTR) region downstream to the integrase domain of approximately 6.4 Kb in size, and also, a Polypurine Tract (PPT) adjacent to the 3´LTR (Llaca et al. 1998). 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: AF098806 Clade: Tat Cluster or genus: Athila/Tat Branch or class: Branch 2 Family: Ty3/Gypsy System: LTR retroelements Host: Explore the Tree Life Project Sorghum bicolor Image, courtesy of Juan Bibiloni, Jardin Botanico Mundani Browse all elements