Analysis of hABC1 gene 5' end: Additional peptide sequence, promoter region, and four polymorphisms

Clive R. Pullinger, Hideki Hakamata, Philippe N. Duchateau, Celeste Eng, Bradley E. Aouizerat, Min H. Cho, Christopher J. Fielding, John P. Kane

Research output: Contribution to journalArticle

Abstract

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. (C) 2000 Academic Press.

Original languageEnglish (US)
Pages (from-to)451-455
Number of pages5
JournalBiochemical and Biophysical Research Communications
Volume271
Issue number2
DOIs
StatePublished - May 10 2000

Fingerprint

ATP Binding Cassette Transporter 1
Polymorphism
Genetic Promoter Regions
ATP-Binding Cassette Transporters
Genes
Peptides
Tangier Disease
Nucleotides
Cholesterol
Active Biological Transport
5' Flanking Region
Nucleic Acid Regulatory Sequences
5' Untranslated Regions
Protein Sequence Analysis
Response Elements
Sterols
Protein Sorting Signals
Gene expression
Single Nucleotide Polymorphism
Coronary Disease

ASJC Scopus subject areas

  • Biochemistry
  • Biophysics
  • Molecular Biology

Cite this

Analysis of hABC1 gene 5' end : Additional peptide sequence, promoter region, and four polymorphisms. / Pullinger, Clive R.; Hakamata, Hideki; Duchateau, Philippe N.; Eng, Celeste; Aouizerat, Bradley E.; Cho, Min H.; Fielding, Christopher J.; Kane, John P.

In: Biochemical and Biophysical Research Communications, Vol. 271, No. 2, 10.05.2000, p. 451-455.

Research output: Contribution to journalArticle

Pullinger, Clive R. ; Hakamata, Hideki ; Duchateau, Philippe N. ; Eng, Celeste ; Aouizerat, Bradley E. ; Cho, Min H. ; Fielding, Christopher J. ; Kane, John P. / Analysis of hABC1 gene 5' end : Additional peptide sequence, promoter region, and four polymorphisms. In: Biochemical and Biophysical Research Communications. 2000 ; Vol. 271, No. 2. pp. 451-455.
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