Characterization of the Bovine Type I IFN Locus: Rearrangements, Expansions, and Novel Subfamilies

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Characterization of the Bovine Type I IFN Locus: Rearrangements, Expansions, and Novel Subfamilies

Please use this identifier to cite or link to this item: http://hdl.handle.net/10355/8772

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Title: Characterization of the Bovine Type I IFN Locus: Rearrangements, Expansions, and Novel Subfamilies
Author: Walker, Angela Marie, 1978-; Roberts, R. M. (Robert Michael), 1940-
Keywords: immune defense system
bovine genome assembly
adaptive immunity
mammalian health
Date: 2009-04-24
Publisher: BMC Genomics
Citation: BMC Genomics, 10(187), 2009.
Abstract: The Type I interferons (IFN) have major roles in the innate immune response to viruses, a function that is believed to have led to expansion in the number and complexity of their genes, although these genes have remained confined to single chromosomal region in all mammals so far examined. IFNB and IFNE define the limits of the locus, with all other Type I IFN genes except IFNK distributed between these boundaries, strongly suggesting that the locus has broadened as IFN genes duplicated and then evolved into a series of distinct families. We have provided the first comprehensive annotation of the Type I IFN locus in Bos taurus, thereby providing an insight into the functional evolution of the Type I IFN in ruminants. The diversity and global spread of the ruminant species may have required an expansion of the Type I IFN locus and its constituent genes to provide broad anti-viral protection required for foraging and foregut fermentation.
URI: http://hdl.handle.net/10355/8772

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