First time at Proteopedia? Click on the green links: they change the 3D image. Click and drag the molecules. Proteopedia is a 3D, interactive encyclopedia of proteins, RNA, DNA and other molecules. With a free user account, you can edit pages in Proteopedia. Visit the Main Page to learn more.
1lxi
From Proteopedia
Refinement of BMP7 crystal structure
Activins and bone morphogenetic proteins (BMPs) elicit diverse biological responses by signaling through two pairs of structurally related type I and type II receptors. Here we report the crystal structure of BMP7 in complex with the extracellular domain (ECD) of the activin type II receptor. Our structure produces a compelling four-receptor model, revealing that the types I and II receptor ECDs make no direct contacts. Nevertheless, we find that truncated receptors lacking their cytoplasmic domain retain the ability to cooperatively assemble in the cell membrane. Also, the affinity of BMP7 for its low-affinity type I receptor ECD increases 5-fold in the presence of its type II receptor ECD. Taken together, our results provide a view of the ligand-mediated cooperative assembly of BMP and activin receptors that does not rely on receptor-receptor contacts.
The BMP7/ActRII extracellular domain complex provides new insights into the cooperative nature of receptor assembly., Greenwald J, Groppe J, Gray P, Wiater E, Kwiatkowski W, Vale W, Choe S, Mol Cell. 2003 Mar;11(3):605-17. PMID:12667445
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
About this Structure
1LXI is a 1 chain structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.
Reference
- Greenwald J, Groppe J, Gray P, Wiater E, Kwiatkowski W, Vale W, Choe S. The BMP7/ActRII extracellular domain complex provides new insights into the cooperative nature of receptor assembly. Mol Cell. 2003 Mar;11(3):605-17. PMID:12667445
Page seeded by OCA on Tue Feb 17 08:07:33 2009
