Abstract:
:Endo180, also known as the urokinase plasminogen activator receptor (uPAR)-associated protein (uPARAP), is one of the four members of the mannose receptor family, and is implicated in extracellular-matrix remodelling through its interactions with collagens, sugars and uPAR. The extracellular portion of Endo180 contains an amino-terminal cysteine-rich domain, a single fibronectin type II domain and eight C-type lectin-like domains. We have purified a soluble version of Endo180 and analysed it by single-particle electron microscopy to obtain a three-dimensional structure of the N-terminal part of the protein at a resolution of 17 A and reveal, for the first time, the interactions between non-adjacent domains in the mannose receptor family. We show that for Endo180, the cysteine-rich domain contacts the second C-type lectin-like domain, thus providing structural insight into how modulation of its several ligand interactions may regulate Endo180 receptor function.
journal_name
EMBO Repjournal_title
EMBO reportsauthors
Rivera-Calzada A,Robertson D,MacFadyen JR,Boskovic J,Isacke CM,Llorca Odoi
10.1038/sj.embor.embor898keywords:
subject
Has Abstractpub_date
2003-08-01 00:00:00pages
807-12issue
8eissn
1469-221Xissn
1469-3178pii
embor898journal_volume
4pub_type
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