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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

The primary structure of the rat guanylyl cyclase A/atrial natriuretic peptide receptor gene.

We have isolated and characterized three genomic clones and a genomic fragment amplified by the polymerase chain reaction that contain the rat guanylyl cyclase-A (GC-A)/atrial natriuretic peptide receptor gene. The gene spans about 17.5 kilobases and includes 22 exons and 21 introns. All of the exon-intron junction sequences coincide with the GT/AG consensus. GC-A consists of at least the following four distinguishable domains: extracellular ligand binding, transmembrane, kinase-like, and cyclase catalytic. Exon 7 encodes the putative transmembrane domain. The kinase-like and catalytic domains are encoded by exons 8-15 and 16-22, respectively. The 5' end of the transcript, estimated by primer extension and S1 mapping, is 370 nucleotides upstream of the methionine initiation codon. The initiator sequence (-3 to +5) of CACACTCC has two mismatches when compared with a consensus initiator sequence of CTCANTCT. The 5'-flanking region contains three potential Sp1-binding sites and an inverted CCAAT box, but no apparent TATA box. Three different and short interspersed, repetitive sequences are found within intervening sequences and within the 5'- and 3'-flanking regions of the gene (five rat identifier, two rat type 2 Alu equivalent, and seven Alu-like sequences). They fall between the four major domains suggestive that these may be sites for frequent recombination events. This first reported structure of a gene for a member of this new enzyme/receptor family should facilitate the search for new family members, as well as allow studies to progress on the mechanisms by which the gene is regulated.[1]


  1. The primary structure of the rat guanylyl cyclase A/atrial natriuretic peptide receptor gene. Yamaguchi, M., Rutledge, L.J., Garbers, D.L. J. Biol. Chem. (1990) [Pubmed]
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