Cer10-1 is a LTR retrotransposon described in the genome of the nematode Caenorhabditis elegans (Bowen and McDonald 1999). This element tentatively belongs to the Tas clade (Copeland et al. 2005) within Branch 1 of the Bel/Pao family (Llorens et al. 2009) but depending on the protein domain phylogenetically evaulate it can fall outside to this clade. This suggests that Cer10 might constitute an own clade within the Bel/Pao phylogeny. The genome of Cer10-1 is 8 Kb in size (8097 bp in lenght), the internal coding region is disrupted by several stop codons and frameshiftings, but the different gag and pol domains of LTR retrotransposons are clearly evident in the sequence of this element (Bowen and McDonald 1999). No information about the Cer10-1 LTRs is yet available.
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