Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
2008410 | Peptides | 2006 | 8 Pages |
Abstract
The melanocortin 4 receptor (MC4R) plays an essential role in weight regulation. Recently we could show that the MC4R is able to form receptor dimers. In the present study we investigated the role of extracellular cysteine residues and the structure of the third extracellular loop for receptor dimerization. None of the four extracellular cysteine residues nor the structure of the third extracellular loop play a role for MC4R–MC4R interaction as all investigated mutants display the same dimerization pattern as the wild-type receptor. Therefore for MC4R dimerization structures of the transmembrane-spanning helices are more likely to be involved.
Related Topics
Life Sciences
Biochemistry, Genetics and Molecular Biology
Biochemistry
Authors
Andrea Elsner, Patrick Tarnow, Michael Schaefer, Petra Ambrugger, Heiko Krude, Annette Grüters, Heike Biebermann,