Repbase Reports |
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| 2005, Volume 5, Issue 4 |
| April 30, 2005 |
| Copyright © 2001-2016 - Genetic Information Research Institute |
| ISSN# 1534-830X |
| Page 76 |
CR1-18_SP |
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CR1-18_SP is a non-LTR retrotransposon - a consensus sequence. |
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Submitted: 30-Apr-2005 |
Accepted: 30-Apr-2005 |
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Key Words: CR1; Non-LTR Retrotransposon; Interspersed Repeat; L1 ORF1; endonuclease; reverse transcriptase; CR1-18_SP |
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Source: Strongylocentrotus purpuratus |
Organism: Strongylocentrotus purpuratus |
Taxonomy: Eukaryota; Metazoa; Echinodermata; Eleutherozoa; Echinozoa; Echinoidea; Euechinoidea; Echinacea; Echinoida; Strongylocentrotidae; Strongylocentrotus |
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| [1] |
Authors: Kapitonov,V.V. and Jurka,J. |
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Title: CR1-18_SP, a family of non-LTR retrotransposons from the sea urchin genome. |
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Journal: Repbase Reports 5(4), 76-76 (2005) |
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Abstract: CR1-18_SP is a non-LTR retrotransposon that belongs to the CR1 clade. Copies of CR1-18_SP are ~2% divergent form the consensus sequence. The consensus sequence is still incomplete at its 5' end. CR1-18_SP encodes two proteins: 343-aa CR1-18_SPp1 (pos. 117-1145) similar to the L1 ORF1 protein, and 1005-aa CR1-18_SPp2 protein (pos. 1370-4384) composed of the CR1-like endonuclease and reverse transcriptase domains. The sea urchin genome harbors other young CR1 families characterized by the L1 ORF1 protein (e.g. CR1-12_SP, CR1-14_SP, CR1-16_SP). Likely, this is a feature of all CR1 non-LTR retrotransposons in sea urchin. Presumably, the L1-CR1 hybrid emerged in the past as a result of a template switch during reverse transcription. The 3' terminus of CR1-18_SP is composed of the (AACTTG) microsatellite.
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Derived: [1] (Consensus) |
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Download Sequence - Format: IG, EMBL, FASTA |
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References: |
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