PUBLICATION

Characterization of the zebrafish (Danio rerio) mineralocorticoid receptor

Authors
Pippal, J.B., Cheung, C.M., Yao, Y.Z., Brennan, F.E., and Fuller, P.J.
ID
ZDB-PUB-101018-10
Date
2011
Source
Molecular and Cellular Endocrinology   332(1-2): 58-66 (Journal)
Registered Authors
Keywords
Ligand-binding, Deoxycorticosterone, Aldosterone, Receptor
MeSH Terms
  • Aldosterone/metabolism
  • Aldosterone/pharmacology
  • Amino Acid Sequence
  • Animals
  • Antihypertensive Agents/metabolism
  • Antihypertensive Agents/pharmacology
  • Cell Line
  • Desoxycorticosterone/metabolism
  • Desoxycorticosterone/pharmacology
  • Humans
  • Hydrocortisone/metabolism
  • Hydrocortisone/pharmacology
  • Mineralocorticoid Receptor Antagonists/metabolism
  • Mineralocorticoid Receptor Antagonists/pharmacology
  • Molecular Sequence Data
  • Nimodipine/metabolism
  • Nimodipine/pharmacology
  • Receptors, Mineralocorticoid/agonists
  • Receptors, Mineralocorticoid/genetics
  • Receptors, Mineralocorticoid/metabolism*
  • Sequence Alignment
  • Sequence Analysis, DNA
  • Spironolactone/metabolism
  • Spironolactone/pharmacology
  • Transcriptional Activation/drug effects
  • Zebrafish/anatomy & histology
  • Zebrafish/genetics
  • Zebrafish/metabolism*
PubMed
20932876 Full text @ Mol. Cell. Endocrinol.
Abstract
Comparison between evolutionarily distant receptors can provide critical insights into both structure and function. Sequence comparison between the mineralocorticoid receptors (MR) of the zebrafish (zMR) and human (hMR) reveal a high degree of sequence conservation in the major functional domains. We isolated a zMR cDNA to contrast the transcriptional response to a range of ligands and to establish whether a teleost MR exhibits the amino/carboxyl-terminal interaction (N/C-interaction) previously reported for the hMR. Aldosterone, deoxycorticosterone (DOC) and cortisol induced zMR transcriptional activity with similar efficacy to that observed with the hMR. The hMR antagonist, spironolactone, acted as an agonist with the zMR. The zMR exhibited an N/C-interaction in response to aldosterone but, in contrast to the hMR, cortisol and DOC predominantly stimulated the interaction in the zMR. Conservation of the N/C-interaction between evolutionarily distant MR provides evidence of functional significance.
Genes / Markers
Figures
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Antibodies
Orthology
Engineered Foreign Genes
Mapping