Genomic Sequence and Structure of the Human ABCG1 (ABC8) Gene
Copyright policy )Genomic Sequence and Structure of the Human ABCG1 (ABC8) Gene
The human ATP-binding cassette half transporter G1 (hABCG1) may play a role in cholesterol transport in macrophages. Using RACE assays we determined the structure of this gene. The hABCG1 gene spans more than 97 kb comprising 20 exons, 20 kb and 5 exons more than hitherto described. Four of the novel exons are upstream and one is downstream of previous exon 1, and they are predicted to encode at least five novel transcripts. We also detected two separate promoters, upstream of exons 1 and 5, respectively. The region 650 bp upstream of exon 1 was predicted to contain putative binding sites for SP1 and nuclear factor kappaB (NF-kappaB), but no sterol response elements (SREs) or retinoid X receptor (RXR) binding sites. The region 650 bp upstream of exon 5 contained 19 possible SP1 binding sites, one possible SRE, two possible NF-kappaB, and two putative RXR binding sites. Nevertheless, both promoters responded in macrophages to stimulation by hydroxycholesterol and retinoic acid.
- University of Münster Germany
Binding Sites, Base Sequence, Sequence Homology, Amino Acid, Macrophages, Molecular Sequence Data, NF-kappa B, Exons, Hydroxycholesterols, Introns, Monocytes, Cell Line, Mice, Animals, Humans, ATP-Binding Cassette Transporters, Amino Acid Sequence, RNA, Messenger, Sequence Alignment, Cells, Cultured, ATP Binding Cassette Transporter, Subfamily G, Member 1
Binding Sites, Base Sequence, Sequence Homology, Amino Acid, Macrophages, Molecular Sequence Data, NF-kappa B, Exons, Hydroxycholesterols, Introns, Monocytes, Cell Line, Mice, Animals, Humans, ATP-Binding Cassette Transporters, Amino Acid Sequence, RNA, Messenger, Sequence Alignment, Cells, Cultured, ATP Binding Cassette Transporter, Subfamily G, Member 1
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