Element:Humnum

From The Gypsy Database

Description

Humnum is a Ty1/Copia LTR retrotransposon found in the genome of the Lepidoptera Heliconius numata (Llorens et al. 2009). It constitutes a one-single-sequence clade within Branch 2 of the Ty1/Copia LTR retrotransposons family as it has no phylogenetic relatives to date reported (Llorens et al. 2009). The genome of Humnum, of about of 4.4 Kb in size (4379 bp long) including 139-bp LTRs, presents a single long polyprotein of 1316 amino acids containing both gag and pol Ty1/Copia associated domains (Llorens et al. 2009).

Structure

Humnum.png


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

Genbank accession:194680628
Clade:Humnum
Cluster or genus:Undetermined
Branch or class:Branch 2
Family:Ty1/Copia
System:LTR retroelements
Host:
Explore the Tree Life Project
Heliconius numata.jpg
Heliconius numata
Courtesy of Dr Mathieu Joron, Natural History Museum, Paris
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