Isolation of coding sequences from bovine cosmids by means of exon trapping

Isolation of coding sequences from bovine cosmids by means of exon trapping Exon trapping was employed to identify coding sequences from a collection of 46 bovine cosmids, previously characterized for the presence of microsatellite markers and physically mapped to chromosomes by FISH. The sequence analysis of 104 clones revealed 18 putative exons, 10 of which showed near identity to known sequences. Among these were the human (cytosine-5)-methyltransferase (DNMT), ATP-citrate lyase (ACLY), the mouse Lbcl1 oncogene, the bovine mitochondrial aconitase (ACO2) and β-arrestin 1 (ARR1). The chromosomal localization of the cloned exons was inferred from the localization of the parent cosmids. DNMT and ACLY were not previously known in cattle, but the physical localization of the cloned bovine exons is in agreement with the published comparative human and bovine maps. The trapping of exons for bovine ACO2 and ARR1 confirms the available mapping information based on synteny and provides a physical assignment for the genes. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Mammalian Genome Springer Journals

Isolation of coding sequences from bovine cosmids by means of exon trapping

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Publisher
Springer-Verlag
Copyright
Copyright © 1997 by Springer-Verlag
Subject
Life Sciences; Cell Biology; Anatomy; Zoology
ISSN
0938-8990
eISSN
1432-1777
D.O.I.
10.1007/s003359900481
Publisher site
See Article on Publisher Site

Abstract

Exon trapping was employed to identify coding sequences from a collection of 46 bovine cosmids, previously characterized for the presence of microsatellite markers and physically mapped to chromosomes by FISH. The sequence analysis of 104 clones revealed 18 putative exons, 10 of which showed near identity to known sequences. Among these were the human (cytosine-5)-methyltransferase (DNMT), ATP-citrate lyase (ACLY), the mouse Lbcl1 oncogene, the bovine mitochondrial aconitase (ACO2) and β-arrestin 1 (ARR1). The chromosomal localization of the cloned exons was inferred from the localization of the parent cosmids. DNMT and ACLY were not previously known in cattle, but the physical localization of the cloned bovine exons is in agreement with the published comparative human and bovine maps. The trapping of exons for bovine ACO2 and ARR1 confirms the available mapping information based on synteny and provides a physical assignment for the genes.

Journal

Mammalian GenomeSpringer Journals

Published: Mar 24, 2009

References

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