Unique sequence organization and erythroid cell-specific nuclear factor-binding of mammalian θ I globin promoters

Jae Ho Kim, Chun Yuan Yu, Arnold Bailey, Ross Cameron Hardison, C. K. James

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

The Θ1 globin gene is an a globin-like gene, and started to diverge from the other members of the a globin family 260 million years ago. DNA sequencing and transcriptional analysis indicated that it is functional in erythroid cells of the higher primates, but not in prosimians and rabbit The 91 promoter region of higher primates including man consists of GC-rich sequences characteristic of housekeeping gene promoters, and CCAAT and TATA boxes located further upstream. It is shown here that the housekeeping gene promoter-like region of human 81 contains two tandemly arranged, GC-rich motifs (GC-I and GC-ip. Of these, GC-II interacts with nuclear factor(s) present in the globin-expressing, erythroleukemia cell line K562, before and after hemin induction. GC-I, however, interacts with nuclear factors) only present in hemin-induced K562 cells. These factors are different from previously reported erythroid cell-specific factors, and are not detectable in non-erythroid Hela cells. Furthermore, the sequence of the motif GC-I and its location relative to ATG codon have been conserved among all known mammalian 01 globin genes. Finally, and most interestingly, the CCAAT box of 81 is contained within a 38 bp internal segment of Alu repeat sequence. Immediately upstream from this CCAAT box-containing Alu repeat segment is a 241 bp Alu repeat pointing in the opposite direction. The conservation of this novel arrangement among the higher primates suggests that an inserted Alu family repeat and its flanking genomic sequence have co-evolved, for at least 30 million years, to provide the canonical CCAAT and TATA promoter elements of the θ1 globin genes in higher primates.

Original languageEnglish (US)
Pages (from-to)5687-5700
Number of pages14
JournalNucleic acids research
Volume17
Issue number14
DOIs
StatePublished - Jul 25 1989

Fingerprint

Erythroid-Specific DNA-Binding Factors
Erythroid Cells
Globins
Primates
Hemin
Essential Genes
Genetic Promoter Regions
Genes
Strepsirhini
GC Rich Sequence
Alu Elements
Leukemia, Erythroblastic, Acute
TATA Box
K562 Cells
DNA Sequence Analysis
HeLa Cells
Codon
Rabbits
Cell Line

All Science Journal Classification (ASJC) codes

  • Genetics

Cite this

Kim, Jae Ho ; Yu, Chun Yuan ; Bailey, Arnold ; Hardison, Ross Cameron ; James, C. K. / Unique sequence organization and erythroid cell-specific nuclear factor-binding of mammalian θ I globin promoters. In: Nucleic acids research. 1989 ; Vol. 17, No. 14. pp. 5687-5700.
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Unique sequence organization and erythroid cell-specific nuclear factor-binding of mammalian θ I globin promoters. / Kim, Jae Ho; Yu, Chun Yuan; Bailey, Arnold; Hardison, Ross Cameron; James, C. K.

In: Nucleic acids research, Vol. 17, No. 14, 25.07.1989, p. 5687-5700.

Research output: Contribution to journalArticle

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AU - Kim, Jae Ho

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AU - Hardison, Ross Cameron

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