PMID- 10799318 OWN - NLM STAT- MEDLINE DCOM- 20000613 LR - 20171213 IS - 0006-291X (Print) IS - 0006-291X (Linking) VI - 271 IP - 2 DP - 2000 May 10 TI - Analysis of hABC1 gene 5' end: additional peptide sequence, promoter region, and four polymorphisms. PG - 451-5 AB - Evidence linking mutations in ATP-binding-cassette transporter gene 1 (ABC1) to Tangier disease suggests it functions in the active transport of free cholesterol out of cells. Since its mRNA level is regulated in response to cellular cholesterol stores it is of interest to explore its promoter response elements, and to investigate polymorphisms for their contributions to the prevalence of low levels of HDL in the population that promotes premature coronary heart disease. Investigation of the 5' end of the gene by 5' RACE analysis revealed 455 nucleotides additional to published sequences, and predicts another 60 amino acid N-terminal residues, resulting in a 2261-residue protein. Protein sequence analysis predicts a membrane-spanning region and possible signal peptide. The 5' flanking region was located by a Human Research Project BLAST search. This region contains regulatory elements that potentially control ABC1 gene expression. In addition to numerous SP1 binding sites there are four putative sterol regulatory elements (SREs). Our studies uncovered three single nucleotide substitution polymorphisms, one in the promoter region and two in the 5' untranslated region (5'UTR), plus an insertion/deletion polymorphism. CI - Copyright 2000 Academic Press. FAU - Pullinger, C R AU - Pullinger CR AD - Department of Physiology, University of California, San Francisco, California, USA. clivep@itsa.ucsf.edu FAU - Hakamata, H AU - Hakamata H FAU - Duchateau, P N AU - Duchateau PN FAU - Eng, C AU - Eng C FAU - Aouizerat, B E AU - Aouizerat BE FAU - Cho, M H AU - Cho MH FAU - Fielding, C J AU - Fielding CJ FAU - Kane, J P AU - Kane JP LA - eng GR - HL 07731/HL/NHLBI NIH HHS/United States GR - HL 31210/HL/NHLBI NIH HHS/United States GR - HL 57976/HL/NHLBI NIH HHS/United States PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, P.H.S. PL - United States TA - Biochem Biophys Res Commun JT - Biochemical and biophysical research communications JID - 0372516 RN - 0 (5' Untranslated Regions) RN - 0 (ABCA1 protein, human) RN - 0 (ATP Binding Cassette Transporter 1) RN - 0 (ATP-Binding Cassette Transporters) RN - 0 (Glycoproteins) RN - 0 (Lipoproteins) SB - IM MH - 5' Untranslated Regions MH - ATP Binding Cassette Transporter 1 MH - ATP-Binding Cassette Transporters/chemistry/*genetics MH - Amino Acid Sequence MH - Animals MH - Base Sequence MH - Exons MH - Glycoproteins/chemistry/*genetics MH - Humans MH - Lipoproteins/blood MH - Mice MH - Molecular Sequence Data MH - *Polymorphism, Genetic MH - *Promoter Regions, Genetic MH - Regulatory Sequences, Nucleic Acid MH - Sequence Homology, Amino Acid EDAT- 2000/05/09 09:00 MHDA- 2000/06/17 09:00 CRDT- 2000/05/09 09:00 PHST- 2000/05/09 09:00 [pubmed] PHST- 2000/06/17 09:00 [medline] PHST- 2000/05/09 09:00 [entrez] AID - S0006-291X(00)92652-4 [pii] AID - 10.1006/bbrc.2000.2652 [doi] PST - ppublish SO - Biochem Biophys Res Commun. 2000 May 10;271(2):451-5. doi: 10.1006/bbrc.2000.2652.