Abstract:
BACKGROUND:The high mobility group A1 proteins (HMGA1a/HMGA1b) are highly conserved between mammalian species and widely described as participating in various cellular processes. By inducing DNA conformation changes the HMGA1 proteins indirectly influence the binding of various transcription factors and therefore effect the transcription regulation. In humans chromosomal aberrations affecting the HMGA1 gene locus on HSA 6p21 were described to be the cause for various benign mesenchymal tumours while high titres of HMGA1 proteins were shown to be associated with the neoplastic potential of various types of cancer. Interestingly, the absence of HMGA1 proteins was shown to cause insulin resistance and diabetes in humans and mice. Due to the various similarities in biology and presentation of human and canine cancers the dog has joined the common rodent animal model for therapeutic and preclinical studies. Accordingly, the canine genome was sequenced completely twice but unfortunately this could not solve the structure of canine HMGA1 gene. RESULTS:Herein we report the characterisation of the genomic structure of the canine HMGA1 gene consisting of 7 exons and 6 introns spanning in total 9524 bp, the in vivo localisation of the HMGA1 protein to the nucleus, and a chromosomal assignment of the gene by FISH to CFA12q11. Additionally, we evaluated a described canine HMGA1 exon 6 SNP in 55 Dachshunds. CONCLUSION:The performed characterisations will make comparative analyses of aberrations affecting the human and canine gene and proteins possible, thereby providing a basis for revealing mechanisms involved in HMGA1 related pathogenesis in both species.
journal_name
BMC Genetjournal_title
BMC geneticsauthors
Beuing C,Soller JT,Muth M,Wagner S,Dolf G,Schelling C,Richter A,Willenbrock S,Reimann-Berg N,Winkler S,Nolte I,Bullerdiek J,Murua Escobar Hdoi
10.1186/1471-2156-9-49subject
Has Abstractpub_date
2008-07-23 00:00:00pages
49issn
1471-2156pii
1471-2156-9-49journal_volume
9pub_type
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