ChemiScreen™ Motilin Receptor Stable Cell Line

Motilin is a 22 amino acid peptide that potently stimulates gastrointestinal contractility. The biological effects of motilin are mediated by a Gq-coupled seven transmembrane protein, currently termed motilin receptor (MR), that shares significant sequence similarity with the ghrelin receptor (Feighner et al., 1999). The motilin receptor is also activated by the antibiotic erythromycin; this interaction appears to mediate some of the gastrointestinal side effects of erythromycin. Although motilides (non-antibiotic derivatives of erythromycin) such as ABT-229 have been investigated for treatment of diabetic gastroporesis, the effectiveness has been limited by tachyphylaxis (decreased response to ligand) resulting from receptor downregulation (Thielemans et al., 2005). Agonists of the motilin receptor with reduced densensitization activity remain a potential treatment for disorders of gastric motility. The cloned human Motilin Receptor-expressing cell line is made in the Chem-1 host, which supports high levels of recombinant Motilin Receptor expression on the cell surface and contains high levels of the promiscuous G protein Gα15 to couple the receptor to the calcium signaling pathway. Thus, the cell line is an ideal tool for screening for antagonists of interactions between the Motilin Receptor and its ligands.

Catalog No. Size Price Quantity
HTS121C 2 Vials $18,779.00

Please contact Customer Service at for European (EUR) or United Kingdom (GBP) pricing or log in to see your account-specific pricing.

Related Family Members:

Calcium Flux Assay
Accession Number
Host Cell Type
2 Vials of mycoplasma-free cells, 1 ml per vial
Cell vials are to be stored in the vapor phase of liquid N2.
  • [User Manual] ChemiSCREEN™ and ChemiBRITE™ Cell Lines

    The ChemiSCREEN and ChemiBRITE Cell Lines are designed to enable the measurement of intracellular calcium levels when a GPCR of interest has been activated by a ligand. These cell lines are suitable for studying small molecules as well as biologics. The assay protocol has been optimized for use in either a 384-well or 96-well format.

    ChemiSCREEN and ChemiBRITE cells stably expres...

    [User Manual] ChemiSCREEN™ and ChemiBRITE™ Cell Lines