Structural organization of the human prostaglandin EP3 receptor subtype gene (PTGER3)

Masato Kotani, Issei Tanaka, Yoshihiro Ogawa, Takeshi Usui, Naohisa Tamura, Kiyoshi Mori, Shuh Narumiya, Teruya Yoshimi, Kazuwa Nakao

Research output: Contribution to journalArticle

76 Citations (Scopus)

Abstract

Prostaglandin EP3 receptor subtype is a seven-membrane-spanning protein with multiple C-terminal tails generated by alternative mRNA splicing. We report here the structural organization of the human EP3 gene (PTGER3). The human EP3 gene spanned more than 80 kb and was composed of 10 exons separated by nine introns. Exon 1 and the 5' 180-bp portion of exon 2 (exon 2a) encoded the seven transmembrane domains and 10 amino acid residues of the cytoplasmic tail, which are common to all EP3 isoforms. The 3' 3461-bp portion of exon 2 (exon 2b) or combinations of exons 3-10 encoded the EP3 isoform-specific C termini and formed their 3'-untranslated regions by multiple fashions of alternative mRNA splicing. Exons 2b, 4, 6, and 10 contained polyadenylation sites. The EP3 gene formed nine distinct mRNAs encoding eight EP3 isoforms, two of which were novel ones tentatively designated EP(3-V) and EP(3-VI). The transcription initiation sites of the human EP3 gene were mapped 227 to ~231 bp upstream of the ATG start codon. The 360-bp 5'flanking region contained a TATA box-like sequence, a GC box, and several cis-acting regulatory elements. The present study provides insight into the molecular mechanisms underlying the prostanoid receptor family.

Original languageEnglish
Pages (from-to)425-434
Number of pages10
JournalGenomics
Volume40
Issue number3
DOIs
Publication statusPublished - Mar 15 1997

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Prostaglandin Receptors
Exons
Genes
Protein Isoforms
Alternative Splicing
Messenger RNA
Tail
TATA Box
Polyadenylation
Initiator Codon
5' Flanking Region
Transcription Initiation Site
3' Untranslated Regions
Introns
Prostaglandins
Membrane Proteins
Amino Acids

All Science Journal Classification (ASJC) codes

  • Genetics

Cite this

Kotani, M., Tanaka, I., Ogawa, Y., Usui, T., Tamura, N., Mori, K., ... Nakao, K. (1997). Structural organization of the human prostaglandin EP3 receptor subtype gene (PTGER3). Genomics, 40(3), 425-434. https://doi.org/10.1006/geno.1996.4585

Structural organization of the human prostaglandin EP3 receptor subtype gene (PTGER3). / Kotani, Masato; Tanaka, Issei; Ogawa, Yoshihiro; Usui, Takeshi; Tamura, Naohisa; Mori, Kiyoshi; Narumiya, Shuh; Yoshimi, Teruya; Nakao, Kazuwa.

In: Genomics, Vol. 40, No. 3, 15.03.1997, p. 425-434.

Research output: Contribution to journalArticle

Kotani, M, Tanaka, I, Ogawa, Y, Usui, T, Tamura, N, Mori, K, Narumiya, S, Yoshimi, T & Nakao, K 1997, 'Structural organization of the human prostaglandin EP3 receptor subtype gene (PTGER3)', Genomics, vol. 40, no. 3, pp. 425-434. https://doi.org/10.1006/geno.1996.4585
Kotani, Masato ; Tanaka, Issei ; Ogawa, Yoshihiro ; Usui, Takeshi ; Tamura, Naohisa ; Mori, Kiyoshi ; Narumiya, Shuh ; Yoshimi, Teruya ; Nakao, Kazuwa. / Structural organization of the human prostaglandin EP3 receptor subtype gene (PTGER3). In: Genomics. 1997 ; Vol. 40, No. 3. pp. 425-434.
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