Repbase Reports

2008, Volume 8, Issue 4
April 30, 2008
Copyright © 2001-2016 - Genetic Information Research Institute
ISSN# 1534-830X
Page 511

Troyka-1-I_NV

Internal portion of the Starlet sea anemone Troyka-1_NV autonomous LTR Retrotransposon - consensus.

Submitted:
29-Apr-2008
Accepted:
30-Apr-2008
Key Words:
Gypsy; LTR Retrotransposon; Transposable Element; Troyka-1-I_NV; Troyka-1-LTR_NV; Troyka-1_NV
Source:
Nematostella
Organism:
Nematostella
Taxonomy:
Eukaryota; Metazoa; Cnidaria; Anthozoa; Hexacorallia; Actiniaria; Edwardsiidae
[2] Authors:
Kapitonov,V.V. and Jurka,J.
Title:
Troyka - a distinctive group of gypsy-like LTR retrotransposons inducing 3-bp target-site duplications.
Journal:
Repbase Reports 8(4), 511-511 (2008)
Abstract:
Troyka is a distinctive group of gypsy-like LTR retrotransposons. Troyka retrotransposons differ from canonical gypsy and other LTR retrotransposons by the length of target site duplications (3-bp in Troyka) and by the unusual 5'-CG and CG-3' termini of LTRs. The ~1600-aa polyprotein encoded by Troyka elements is composed of the aspartyl protease (pos. 350-400), reverse transcriptase (pos. 700-900), and integrase domains (pos. 1250-1400). The polyproteins encoded by different families of Troyka present in the cnidarian and amphioxus genomes are ~50% identical to each other. However, there proteins are only 20-30% identical to the pro, RT and INT domains encoded by canonical gypsy LTR retrotransposons. Troyka-1_NV is a very young family of Troyka LTR retrotransposons present in the cnidarian genome. Copies of Troyka-1_NV are flanked by ~99% identical LTRs.
Derived:
[2] (Consensus)
Download Sequence - Format:
IG, EMBL, FASTA
References:
  1. Putnam,N.H., Srivastava,M., Hellsten,U., Dirks,B., Chapman,J., Salamov,A., Terry,A., Shapiro,H., Lindquist,E., Kapitonov,V.V., Jurka,J., Genikhovich,G., Grigoriev,I.V., Lucas,S.M., Steele,R.E., Finnerty,J.R., Technau,U., Martindale,M.Q. and Rokhsar,D.S.
    Sea anemone genome reveals ancestral eumetazoan gene repertoire and genomic organization.
    Science 317(5834), 86-94 (2007)

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