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J Mol Biol. 1989 Jan 5;205(1):41-62.

Nucleotide sequence of the BALB/c mouse beta-globin complex.

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Department of Microbiology and Immunology, University of North Carolina, Chapel Hill 27514.


The nucleotide sequence of 55,856 base-pairs containing all seven beta-globin homologous structures from chromosome 7 of the BALB/c mouse is reported. This sequence links together previously published sequences of the beta-globin genes, pseudogenes and repetitive elements. Using low stringency computer searches, we found no additional beta-globin homologous sequences, but did find many more long interspersed repetitive sequences (L1) than predicted by hybridization. L1 is a major component of the mouse beta-globin complex with at least 15 elements comprising about 22% of the reported sequence. Most open reading frames greater than 300 base-pairs in the cluster overlap with L1 repeats or globin genes. Polypurine, polypyrimidine and alternating purine/pyrimidine tracts are not evenly dispersed throughout the complex, but they do not appear to be excluded from or restricted to particular regions. Several regions of intergenic homology were detected in dot-plot comparisons of the mouse sequence with itself and with the human beta-globin sequence. The significance of these homologies is unclear, but these regions are candidates for further study in functional assays in erythroid cell lines or transgenic animals.

[Indexed for MEDLINE]

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