Element:GalEa1

Description GalEa1, characterized in the genome of the squat lobster (Eumunida annulosa), represents the first Ty1/Copia-like LTR retrotransposon described in Crustacea (Terrat et al. 2008). It belongs to GalEA clade a Ty1/Copia lineage specifically found in marin animals (Terrat et al. 2008). The genome of GalEa1 is 4669 bp in size, including LTRs of 124 bp long. The LTRs bounded internal region contains a Primer Binding Site (PBS) complementary to a tRNAMet, a single large Open Reading Frame (ORF) (which harbors a stop codon at position 1.516 and a frameshift at position 1.979) and a Polypurine Tract (PPT) adjacent to its 3’LTR. The translated region displays the typical gag and pol polyprotein domains of Ty1/Copia LTR retrotransposons: gag, protease, integrase, reverse transcriptase and ribonuclease H (Terrat et al. 2008). 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: 156600407 Clade: GalEA Cluster or genus: Undetermined Branch or class: Branch 1 Family: Ty1/Copia System: LTR retroelements Host: Explore the Tree Life Project Eumunida spp Cortesy of the Biological library (BioLib), Dr.Tamara Frank author Browse all elements