Quantitative PCR method to detect a 13-kb deletion in the MURR1 gene associated with copper toxicosis and HIV-1 replication

Quantitative PCR method to detect a 13-kb deletion in the MURR1 gene associated with copper... The recently discovered locus for copper toxicosis (CT) in Bedlington terriers (BT) has a 13-kb deletion enveloping the 187-bp exon-2 of the MURR1 gene. This MURR1 gene is not only involved with biliary copper excretion but also associated with HIV-1 replication. The microsatellite C04107 lying in an intron of the MURR1 gene is highly associated with the disease but shows haplotype diversity. The only solid molecular test for the disease is by showing the deletion in exon-2 in cDNA in liver tissue; this test is not robust on RNA from peripheral leukocytes because of their low MURR1 expression level. Because of these drawbacks, we developed a new quantitative PCR (Q-PCR) protocol. Here we show that the MURR1 exon-2/exon-3 ratio measured by Q-PCR on genomic DNA correlates perfectly with the microsatellite marker and with RT-PCR data from blood samples, buccal swabs, and liver biopsies. In view of the important role of MURR1 in cells of many tissues, this new test has a wide range of applications in comparative biomedical research. Furthermore, Q-PCR on DNA may be a new tool in general to analyze mutations that cannot be approached by standard methods. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Mammalian Genome Springer Journals

Quantitative PCR method to detect a 13-kb deletion in the MURR1 gene associated with copper toxicosis and HIV-1 replication

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Publisher
Springer Journals
Copyright
Copyright © 2005 by Springer Science+Business Media Inc.
Subject
Life Sciences; Anatomy; Cell Biology; Zoology
ISSN
0938-8990
eISSN
1432-1777
D.O.I.
10.1007/s00335-004-2457-2
Publisher site
See Article on Publisher Site

Abstract

The recently discovered locus for copper toxicosis (CT) in Bedlington terriers (BT) has a 13-kb deletion enveloping the 187-bp exon-2 of the MURR1 gene. This MURR1 gene is not only involved with biliary copper excretion but also associated with HIV-1 replication. The microsatellite C04107 lying in an intron of the MURR1 gene is highly associated with the disease but shows haplotype diversity. The only solid molecular test for the disease is by showing the deletion in exon-2 in cDNA in liver tissue; this test is not robust on RNA from peripheral leukocytes because of their low MURR1 expression level. Because of these drawbacks, we developed a new quantitative PCR (Q-PCR) protocol. Here we show that the MURR1 exon-2/exon-3 ratio measured by Q-PCR on genomic DNA correlates perfectly with the microsatellite marker and with RT-PCR data from blood samples, buccal swabs, and liver biopsies. In view of the important role of MURR1 in cells of many tissues, this new test has a wide range of applications in comparative biomedical research. Furthermore, Q-PCR on DNA may be a new tool in general to analyze mutations that cannot be approached by standard methods.

Journal

Mammalian GenomeSpringer Journals

Published: Jan 1, 2004

References

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