1m8a

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{{STRUCTURE_1m8a| PDB=1m8a | SCENE= }}
{{STRUCTURE_1m8a| PDB=1m8a | SCENE= }}
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'''Human MIP-3alpha/CCL20'''
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===Human MIP-3alpha/CCL20===
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==Overview==
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Human macrophage inflammatory protein-3alpha (MIP-3alpha; CCL20) is a CC-type chemokine that binds to and activates CC chemokine receptor-6 (CCR6). Although MIP-3alpha does not share the binding site of CCR6 with any other chemokine, human beta-defensin-1 and -2, small cationic antimicrobial peptides, have also been found to bind to and activate CCR6. Conversely, we have found that MIP-3alpha possesses antibacterial activity of greater potency than human beta-defensin-1 and -2 against Escherichia coli ATCC 25922 and Staphylococcus aureus ATCC 29213, while having no activity against the fungus Candida albicans. There is no clear sequence similarity between beta-defensins and the chemokine MIP-3alpha, beyond an abundance of cationic residues and the presence of disulfide bonds. Nonetheless, there are structural similarities between these three proteins that allow their overlap of chemotactic and antimicrobial activities. In this report, we describe the x-ray crystal structure of human MIP-3alpha refined to a resolution of 1.7 A and compare it with the crystal structures of human beta-defensin-1 and -2. Molecules of MIP-3alpha and the beta-defensins seem to share few structural motifs that are likely associated with their common biological activities.
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(as it appears on PubMed at http://www.pubmed.gov), where 12149255 is the PubMed ID number.
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{{ABSTRACT_PUBMED_12149255}}
==About this Structure==
==About this Structure==
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[[Category: Cc-chemokine]]
[[Category: Cc-chemokine]]
[[Category: Il-8 type dimer]]
[[Category: Il-8 type dimer]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 00:45:13 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Wed Jul 2 23:25:19 2008''

Revision as of 20:25, 2 July 2008

Image:1m8a.png

Template:STRUCTURE 1m8a

Human MIP-3alpha/CCL20

Template:ABSTRACT PUBMED 12149255

About this Structure

1M8A is a Single protein structure. Full crystallographic information is available from OCA.

Reference

The structure of human macrophage inflammatory protein-3alpha /CCL20. Linking antimicrobial and CC chemokine receptor-6-binding activities with human beta-defensins., Hoover DM, Boulegue C, Yang D, Oppenheim JJ, Tucker K, Lu W, Lubkowski J, J Biol Chem. 2002 Oct 4;277(40):37647-54. Epub 2002 Jul 30. PMID:12149255

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