1oqe
From Proteopedia
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|ACTIVITY= | |ACTIVITY= | ||
|GENE= | |GENE= | ||
| + | |DOMAIN= | ||
| + | |RELATEDENTRY=[[1jh5|1JH5]], [[1oqd|1OQD]] | ||
| + | |RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1oqe FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1oqe OCA], [http://www.ebi.ac.uk/pdbsum/1oqe PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1oqe RCSB]</span> | ||
}} | }} | ||
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[[Category: ligand receptor complex]] | [[Category: ligand receptor complex]] | ||
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 30 22:48:52 2008'' |
Revision as of 19:48, 30 March 2008
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| , resolution 2.50Å | |||||||
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| Related: | 1JH5, 1OQD
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| Resources: | FirstGlance, OCA, PDBsum, RCSB | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
Crystal structure of sTALL-1 with BAFF-R
Overview
The tumour necrosis factor (TNF) ligand TALL-1 and its cognate receptors, BCMA, TACI and BAFF-R, were recently identified as members of the TNF superfamily, which are essential factors contributing to B-cell maturation. The functional, soluble fragment of TALL-1 (sTALL-1) forms a virus-like assembly for its proper function. Here we determine the crystal structures of sTALL-1 complexed with the extracellular domains of BCMA and BAFF-R at 2.6 and 2.5 A, respectively. The single cysteine-rich domain of BCMA and BAFF-R both have saddle-like architectures, which sit on the horseback-like surface formed by four coil regions on each individual sTALL-1 monomer. Three novel structural modules, D2, X2 and N, were revealed from the current structures. Sequence alignments, structural modelling and mutagenesis revealed that one disulphide bridge in BAFF-R is critical for determining the binding specificity of the extracellular domain eBAFF-R to TALL-1 instead of APRIL, a closely related ligand of TALL-1, which was confirmed by binding experiments in vitro.
About this Structure
1OQE is a Protein complex structure of sequences from Homo sapiens. Full crystallographic information is available from OCA.
Reference
Ligand-receptor binding revealed by the TNF family member TALL-1., Liu Y, Hong X, Kappler J, Jiang L, Zhang R, Xu L, Pan CH, Martin WE, Murphy RC, Shu HB, Dai S, Zhang G, Nature. 2003 May 1;423(6935):49-56. PMID:12721620
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