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The Sequence of a Large L1Md Element Reveals a Tandemly Repeated 5' End and Several Features Found in Retrotransposons

Overview
Journal Mol Cell Biol
Specialty Cell Biology
Date 1986 Jan 1
PMID 3023821
Citations 162
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Abstract

The complete nucleotide sequence of a 6,851-base pair (bp) member of the L1Md repetitive family from a selected random isolate of the BALB/c mouse genome is reported here. Five kilobases of the element contains two overlapping reading frames of 1,137 and 3,900 bp. The entire 3,900-bp frame and the 3' 600 bp of the 1,137-bp frame, when compared with a composite consensus primate L1 sequence, show a ratio of replacement to silent site differences characteristic of protein coding sequences. This more closely defines the protein coding capacity of this repetitive family, which was previously shown to possess a large open reading frame of undetermined extent. The relative organization of the 1,137- and 3,900-bp reading frames, which overlap by 14 bp, bears resemblance to protein-coding, mobile genetic elements. Homology can be found between the amino acid sequence of the 3,900-bp frame and selected domains of several reverse transcriptases. The 5' ends of the two L1Md elements described in this report have multiple copies, 4 2/3 copies and 1 2/3 copy, of a 208-bp direct tandem repeat. The sequence of this 208-bp element differs from the sequence of a previously defined 5' end for an L1Md element, indicating that there are at least two different 5' end motifs for L1Md.

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References
1.
Potter S . Rearranged sequences of a human Kpn I element. Proc Natl Acad Sci U S A. 1984; 81(4):1012-6. PMC: 344753. DOI: 10.1073/pnas.81.4.1012. View

2.
Southern E . Detection of specific sequences among DNA fragments separated by gel electrophoresis. J Mol Biol. 1975; 98(3):503-17. DOI: 10.1016/s0022-2836(75)80083-0. View

3.
Benton W, Davis R . Screening lambdagt recombinant clones by hybridization to single plaques in situ. Science. 1977; 196(4286):180-2. DOI: 10.1126/science.322279. View

4.
Jahn C, HUTCHISON 3rd C, Phillips S, Weaver S, Haigwood N, Voliva C . DNA sequence organization of the beta-globin complex in the BALB/c mouse. Cell. 1980; 21(1):159-68. DOI: 10.1016/0092-8674(80)90123-3. View

5.
Cheng S, SCHILDKRAUT C . A family of moderately repetitive sequences in mouse DNA. Nucleic Acids Res. 1980; 8(18):4075-90. PMC: 324220. DOI: 10.1093/nar/8.18.4075. View