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  • Title: Interactions of atrial natriuretic peptide with A7r5 cells.
    Author: Aptel HB, Deacon CF, Henderson IW.
    Journal: Biochem Biophys Res Commun; 1994 Nov 15; 204(3):1286-91. PubMed ID: 7526862.
    Abstract:
    The interactions of Atrial Natriuretic Peptide with its receptors were investigated with the vascular smooth muscle cells from the A7r5 cell line. Displacement experiments of [125I]rat-Atrial Natriuretic Peptide by rat-Atrial Natriuretic Peptide revealed a single class of receptors with a Kd = 0.21 +/- 0.08 nM and a Bmax = of 35 +/- 16 fmol/mg of protein. Furthermore, the complex [125I]r-Atrial Natriuretic Peptide was internalised by a heatsensitive process. Finally, Atrial Natriuretic Peptide increased cyclic Guanosyl 3',5' Mono Phosphate in a time dependent and dose dependent way, a concentration of 0.1 microM increasing cyclic Guanosyl 3',5' Mono Phosphate level by a factor of 8.3 times when compared to basal level.
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