An unusual cytokine: Ig-domain interaction revealed in the crystal structure of leukemia inhibitory factor (LIF) in complex with the LIF receptor
Details
Publication Year 2007-07-31,Volume 104,Issue #31,Page 12737-12742
Journal Title
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
Publication Type
Journal Article
Abstract
Leukemia inhibitory factor (LIF) receptor is a cell surface receptor that mediates the actions of LIF and other IL-6 type cytokines through the formation of high-affinity signaling complexes with gp130. Here we present the crystal structure of a complex of mouse LIF receptor with human LIF at 4.0 angstrom resolution. The structure is, to date, the largest cytokine receptor fragment determined by x-ray crystallography. The binding of LIF to its receptor via the central Ig-like domain is unlike other cytokine receptor complexes that bind ligand predominantly through their cytokine-binding modules. This structure, in combination with previous crystallographic studies, also provides a structural template to understand the formation and orientation of the high-affinity signaling complex between LIF, LIF receptor, and gp130.
Publisher
NATL ACAD SCIENCES
Keywords
IMMUNOGLOBULIN-LIKE DOMAIN; EXTRACELLULAR DOMAINS; ALPHA-CHAIN; GP130; BINDING; AFFINITY; CELLS; RECOGNITION; ASSOCIATION; SUBUNITS
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Creation Date: 2007-07-31 12:00:00
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