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1nbp

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{{STRUCTURE_1nbp| PDB=1nbp | SCENE= }}
{{STRUCTURE_1nbp| PDB=1nbp | SCENE= }}
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'''Crystal Structure Of Human Interleukin-2 Y31C Covalently Modified At C31 With 3-Mercapto-1-(1,3,4,9-tetrahydro-B-carbolin-2-yl)-propan-1-one'''
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===Crystal Structure Of Human Interleukin-2 Y31C Covalently Modified At C31 With 3-Mercapto-1-(1,3,4,9-tetrahydro-B-carbolin-2-yl)-propan-1-one===
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==Overview==
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The cytokine hormone interleukin-2 (IL-2) contains a highly adaptive region that binds small, druglike molecules. The binding properties of this adaptive region have been explored using a "tethering" method that relies on the formation of a disulfide bond between the protein and small-molecule ligands. Using tethering, surface plasmon resonance (SPR), and X-ray crystallography, we have discovered that the IL-2 adaptive region contains at least two cooperative binding sites where the binding of a first ligand to one site promotes or antagonizes the binding of a second ligand to the second site. Cooperative energies of interaction of -2 kcal/mol are observed. The observation that the adaptive region contains two adjacent sites may lead to the development of tight-binding antagonists of a protein-protein interaction. Cooperative ligand binding in the adaptive region of IL-2 underscores the importance of protein dynamics in molecular recognition. The tethering approach provides a novel and general strategy for discovering such cooperative binding interactions in specific, flexible regions of protein structure.
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{{ABSTRACT_PUBMED_12767230}}
==Disease==
==Disease==
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[[Category: Four-helix bundle]]
[[Category: Four-helix bundle]]
[[Category: Small molecule complex]]
[[Category: Small molecule complex]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 02:20:22 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Tue Jul 29 08:27:28 2008''

Revision as of 05:27, 29 July 2008

Template:STRUCTURE 1nbp

Contents

Crystal Structure Of Human Interleukin-2 Y31C Covalently Modified At C31 With 3-Mercapto-1-(1,3,4,9-tetrahydro-B-carbolin-2-yl)-propan-1-one

Template:ABSTRACT PUBMED 12767230

Disease

Known disease associated with this structure: Severe combined immunodeficiency due to IL2 deficiency OMIM:[147680]

About this Structure

1NBP is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.

Reference

Discovery and characterization of cooperative ligand binding in the adaptive region of interleukin-2., Hyde J, Braisted AC, Randal M, Arkin MR, Biochemistry. 2003 Jun 3;42(21):6475-83. PMID:12767230

Page seeded by OCA on Tue Jul 29 08:27:28 2008

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