Oct 1, 1994

Characterization of six new loci within the swine major histocompatibility complex class III region

Mammalian Genome : Official Journal of the International Mammalian Genome Society
M NunesP Chardon


A search for new potential coding sequences was conducted within two overlapping cosmid genomic DNA clusters of about 170 and 45 kb from the swine major histocompatibility complex class III region. The sequences were detected with various probes, including pools of swine cDNA, homologous and heterologous genomic sequences, and synthetic oligonucleotides. The 170 kb cluster was centered on the tumor necrosis factor genes (TNF), and the 45 kb cluster contained the heat-shock protein 70 genes (HSP70). The TNF cluster revealed the presence of five new genes: lymphotoxin beta, BAT1, BAT2, BAT3, and a sequence related to DNA-binding factors. No sequence homologous to B144 was found in the TNF cluster, although other unidentified coding sequences may be present in this cluster. The HSP70 cluster contained a gene identified as BAT6, that is, tRNA-valyl synthetase. These results provide new evidence that the genomic maps of these various genes in the TNF and HSP70 sub-regions are similar in swine and human.

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  • Citations11


Mentioned in this Paper

Lymphotoxin beta
LST1 gene
Heat-Shock Proteins 70
Tumor Necrosis Factor-alpha
DDX39B gene
Valine-tRNA Ligase
MT-TA gene
Genes, Reiterated
Transcription, Genetic

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