Element:Kobel

Description Kobel is a LTR retrotransposon characterized in the Hemichordata acorn worm Saccoglossus kowalevskii (Llorens et al. 2009). Its name is an acronym derived from Saccoglossus kowalevskii Bel/Pao element. Kobel belongs to the Sinbad clade (Copeland et al. 2005) within Branch 2 of the Bel/Pao LTR retrotransposon family (Llorens et al. 2009). The genome of Kobel is 7471 bp in lenght, including LTRs of 865 nt. The internal region of this LTR retrotransposon displays a single ORF encoding for gag and pol genes. The gag polyprotein presents three CCHC (Cysteine zinc finger array) motifs characteristic of the nucleocapsid domain, while the pol contains the domains of the putative protease, reverse transcriptase, RNase H and integrase proteins (Llorens et al. 2009). 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: 154426342 Clade: Sinbad Cluster or genus: Undetermined Branch or class: Branch 2 Family: Bel/Pao System: LTR retroelements Host: Explore the Tree Life Project Saccoglossus spp Cortesy of Marine Biological Laboratory Browse all elements