1ha6
From Proteopedia
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'''NMR SOLUTION STRUCTURE OF MURINE CCL20/MIP-3A CHEMOKINE''' | '''NMR SOLUTION STRUCTURE OF MURINE CCL20/MIP-3A CHEMOKINE''' | ||
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[[Category: Varona, R.]] | [[Category: Varona, R.]] | ||
[[Category: Zaballos, A.]] | [[Category: Zaballos, A.]] | ||
| - | [[Category: | + | [[Category: Ccl20/mip-3a]] |
| - | [[Category: | + | [[Category: Chemiokine]] |
| - | [[Category: | + | [[Category: Defensin]] |
| - | [[Category: | + | [[Category: Mouse]] |
| - | [[Category: | + | [[Category: Nmr]] |
| - | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 18:37:43 2008'' | |
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | + | |
Revision as of 15:37, 2 May 2008
NMR SOLUTION STRUCTURE OF MURINE CCL20/MIP-3A CHEMOKINE
Overview
CCL20/MIP-3alpha is a beta-chemokine expressed in the thymus, skin, and intestinal epithelial cells that exclusively binds and activates the CCR6 receptor in both mice and humans. The strict receptor binding specificity of CCL20 is exceptional; other chemokines and their receptors bind promiscuously with multiple partners. Toward determining the structural basis for the selective receptor specificity of CCL20, we have determined its three-dimensional structure by 1H NMR spectroscopy. CCL20 exhibits the same monomeric structure previously described for other chemokines: a three-stranded beta-sheet and an overlying alpha-helix. The CCL20 receptor selectivity could arise from the rigid conformation of the N-terminal DCCL motif as well as the groove between the N-loop and the beta2-beta3 hairpin, which is significantly narrower in CCL20 than in other chemokines. Similar structural features are seen in human beta-defensin 2, a small nonchemokine polypeptide reported to selectively bind and activate CCR6, which stresses their importance for the specific binding of both CCL20 and beta-defensin 2 to CCR6. CCL20's structure will be useful to design tools aimed to modulate its important biological functions.
About this Structure
1HA6 is a Single protein structure of sequence from Mus musculus. Full crystallographic information is available from OCA.
Reference
NMR solution structure of murine CCL20/MIP-3alpha, a chemokine that specifically chemoattracts immature dendritic cells and lymphocytes through its highly specific interaction with the beta-chemokine receptor CCR6., Perez-Canadillas JM, Zaballos A, Gutierrez J, Varona R, Roncal F, Albar JP, Marquez G, Bruix M, J Biol Chem. 2001 Jul 27;276(30):28372-9. Epub 2001 May 23. PMID:11373289 Page seeded by OCA on Fri May 2 18:37:43 2008
Categories: Mus musculus | Single protein | Albar, J P. | Bruix, M. | Gutierrez, J. | Marquez, G. | Perez-Canadillas, J M. | Roncal, F. | Varona, R. | Zaballos, A. | Ccl20/mip-3a | Chemiokine | Defensin | Mouse | Nmr
