2g0l
From Proteopedia
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'''Solution Structure of Neocarzinostatin Apo-Protein with bound Flavone''' | '''Solution Structure of Neocarzinostatin Apo-Protein with bound Flavone''' | ||
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[[Category: Stoneman, R G.]] | [[Category: Stoneman, R G.]] | ||
[[Category: Woolfson, D N.]] | [[Category: Woolfson, D N.]] | ||
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Revision as of 01:33, 4 May 2008
Solution Structure of Neocarzinostatin Apo-Protein with bound Flavone
Overview
Neocarzinostatin (NCS) is a 1:1 complex of an enediyne chromophore (NCSChrom), non-covalently bound to an 11 kDa protein (apoNCS). We are exploring apoNCS as a generic protein system for sequestering small molecules for therapeutic applications. Here, we disclose a new flavone ligand 1 for apoNCS and present a high-resolution NMR structure of this ligand bound to apoNCS. This is the first high-resolution structure of a completely non-cognate ligand bound to the apoNCS protein. This work provides unambiguous evidence that a completely new class of ligand can bind specifically to apoNCS. Furthermore, the mode of binding is different than that of the naphthoate-based ligands, and for such a simple hydrophobic compound, the new ligand surprisingly binds specifically. This work indicates that apo-Neocarzinostatin has multiple selective and distinct binding modes for small-molecule cargo.
About this Structure
2G0L is a Single protein structure of sequence from Streptomyces carzinostaticus. Full crystallographic information is available from OCA.
Reference
Synthetic ligands for apo-neocarzinostatin., Caddick S, Muskett FW, Stoneman RG, Woolfson DN, J Am Chem Soc. 2006 Apr 5;128(13):4204-5. PMID:16568976 Page seeded by OCA on Sun May 4 04:33:48 2008
