Alu-mediated inactivation of the human CMP- N-acetylneuraminic acid hydroxylase gene

Bibliographic Collection:

CARTA-Inspired Publication

Publication Type: Journal Article

Authors: Hayakawa, T.; Satta, Y.; Gagneux, P.; Ajit Varki; Takahata, N.

Year of Publication: 2001

Journal: Proc Natl Acad Sci U S A

Volume: 98

Edition: 2001/09/20

Number: 20

Pagination: 11399-404

Date Published: Sep 25

Type of Article: Research Support, Non-U.S. Gov't

Publication Language: eng

ISBN Number: 0027-8424 (Print)0027-84

Keywords: Alu Elements/*genetics, Animals, Base Sequence, Evolution, Exons, Gorilla gorilla/genetics, Humans, Hylobates/genetics, Macaca mulatta, Mixed Function Oxygenases/*genetics, Molecular, Molecular Sequence Data, Pan troglodytes/genetics, Phylogeny, Polymeras

Abstract:

Inactivation of the CMP-N-acetylneuraminic acid hydroxylase gene has provided an example of human-specific genomic mutation that results in a widespread biochemical difference between human and nonhuman primates. We have found that, although a region containing a 92-bp exon and an AluSq element in the hydroxylase gene is intact in all nonhuman primates examined, the same region in the human genome is replaced by an AluY element that was disseminated at least one million years ago. We propose a mechanistic model for this Alu-mediated replacement event, which deleted the 92-bp exon and thus inactivated the human hydroxylase gene. It is suggested that Alu elements have played potentially important roles in genotypic and phenotypic evolution in the hominid lineage.

Notes:

Proc Natl Acad Sci U S A. 2001 Sep 25;98(20):11399-404. Epub 2001 Sep 18.

URL: http://www.ncbi.nlm.nih.gov/pubmed/11562455

Custom 2:

58741

Alternate Journal: Proceedings of the National Academy of Sciences of the United States of America

Author Address:

Department of Biosystems Science, Graduate University for Advanced Studies (Sokendai), Hayama, Kanagawa 240-0193, Japan.

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