Warning: Undefined array key "mm" in /www/wwwroot/www.ai-bt.com/si.php on line 10 Deprecated: trim(): Passing null to parameter #1 ($string) of type string is deprecated in /www/wwwroot/www.ai-bt.com/si.php on line 10 A repetitive DNA sequence in the salmonid fishes similar to a retroviral long terminal repeat.

Literature DB >> 3133484

A repetitive DNA sequence in the salmonid fishes similar to a retroviral long terminal repeat.

Abstract

We describe the characteristics of a repetitive DNA sequence from the rainbow trout and related salmonid fishes that is similar to a retroviral long terminal repeat (LTR). The repeat is 160 bp long and contains a region of homology to the LTR of the avian sarcoma virus. Two clones with this repeat from the chum salmon also have a polypurine tract and tRNA binding site, respectively, and these clones may represent the two LTRs of a retrovirus or retroviral-like repetitive element. Copies of the repeat are also adjacent to rainbow trout and chum salmon protamine genes. These repeats may be "solo" LTRs. There appears to be some polymorphism in restriction sites between individual rainbow trout and considerable differences between salmonid fish species when the repeat is used as a probe.

Entities: Chemical Species

Mesh：

Substances：
Protamines

Year: 1988 PMID： 3133484 DOI： 10.1007/bf02099724

Source DB: PubMed Journal: J Mol Evol ISSN： 0022-2844 Impact factor: 2.395

19 in total

A repetitive DNA sequence in the salmonid fishes similar to a retroviral long terminal repeat.

1. A new family of LTR-like sequences abundantly expressed in rat tumors.

2. Evidence of sequences resembling avian retrovirus long terminal repeats flanking the trout protamine gene.

3. DNA rearrangements associated with a transposable element in yeast.

4. Nucleotide sequences of the retroviral long terminal repeats and their adjacent regions.

5. A technique for radiolabeling DNA restriction endonuclease fragments to high specific activity.

6. Two types of somatic recombination are necessary for the generation of complete immunoglobulin heavy-chain genes.

7. Function of the retrovirus long terminal repeat.

8. Genomic structure and possible retroviral origin of the chicken CR1 repetitive DNA sequence family.

9. Rapid purification of plasmid DNA by a single centrifugation in a two-step cesium chloride-ethidium bromide gradient.

10. Organization and evolution of immunoglobulin VH gene subgroups.

1. Vertebrate protamine gene evolution I. Sequence alignments and gene structure.

2. Sequence similarities of the protamine genes: implications for regulation and evolution.

3. Gypsy/Ty3-class retrotransposons integrated in the DNA of herring, tunicate, and echinoderms.

4. On the evolution of protamines in bony fish: alternatives to the "retroviral horizontal transmission" hypothesis.

5. Characterization of a protamine gene from the chum salmon (Oncorhynchus keta).