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Endothelin action on pituitary latotrophs (Bertram et al. 2006)
Accession: 91899
Endothelin (ET-1, -2, and -3 designate three genes which produce different endothelin isopeptides) is a prolactin inhibiting substance of hypothalmic origin. ET-1 binding is part of at least four G protein signaling pathways in lactotrophs. The sequence of events in these pathways following the presentation of nano- and pico-molar concentrations of ET-1 is modeled in the paper.
Reference: Bertram R, Tabak J, Toporikova N, Freeman ME (2006) Endothelin action on pituitary lactotrophs: one receptor, many GTP-binding proteins. Sci STKE 2006:pe4 [PubMed]
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Model Information (Click on a link to find other models with that property)
Model Type:  Neuron or other electrically excitable cell;
Brain Region(s)/Organism:  
Cell Type(s):   Pituitary cell ;
Channel(s):  I K; I_SERCA;  
Gap Junctions:  
Receptor(s):  
Gene(s):  
Transmitter(s):  Amino Acids;
Simulation Environment:  XPP (web link to model);
Model Concept(s):  Activity Patterns; Signaling pathways;
Implementer(s):  
Search NeuronDB for information about:  I K; I_SERCA; Amino Acids;
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Note from ModelDB Administrator: the below is a copy of the web page http://www.math.fsu.edu/~bertram/software/pituitary/STKE_06/ made on May 8th, 2007.
Software for "Endothelin Action on Pituitary Lactotrophs: One receptor, Many GTP-Binding Proteins", Science STKE, 2006(319):pe4, 2006, by R. Bertram, J. Tabak, N. Toporikova, and M. E. Freeman
  • First figure, simulation of nanomolar concentrations of endothelin-1. Figure 1

  • Second figure, simulation of picomolar concentrations of endothelin-1. Figure 2


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