Revision as of 17:48, 16 December 2009 by imported>Gydbwiki
Spirobel is a LTR retrotransposon described in the genome of the nematode parasite Trichinella spiralis. Its name is an acronym derived from "Trichinella spiralis Bel/Pao element". Spirobel belongs to the Tas clade (Copeland et al. 2005) within Branch 1 of the Bel/Pao family (Llorens et al. 2009).
Spirobel genome (5428 bp long) encodes for a single ORF containing both putative gag and pol domains. The gag nucleocapsid protein contains the three zinc-finger motifs of Cys-His type, while the pol presents the AP, RT, RH and INT associated domains. To date there is no information available of Spirobel LTRs.
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:
||DU or DUT=dUTPase
||TAV or IBMP=transactivator/viroplasmin or inclusion body matrix protein
||PBS=primer binding site
||ATF=aphid transmission factor
||VAP=virion associated protein