2xnu

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Acetylcholine binding protein (AChBP) as template for hierarchical in silico screening procedures to identify structurally novel ligands for the nicotinic receptorsAcetylcholine binding protein (AChBP) as template for hierarchical in silico screening procedures to identify structurally novel ligands for the nicotinic receptors

Structural highlights

2xnu is a 5 chain structure with sequence from Aplysia californica. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 2.55Å
Ligands:
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

Q8WSF8_APLCA

Publication Abstract from PubMed

Hierarchical in silico screening protocols against the agonist bound acetylcholine binding protein (AChBP) crystal structure were efficient in identifying novel chemotypes for AChBP and the human alpha7 receptor. Two hit structures were cocrystallized with AChBP revealing intermolecular cation-pi interactions with loop C but lacking intermolecular hydrogen bonding. The compounds act as competitive alpha7 receptor antagonists and as non-competitive alpha4beta2 receptor inhibitors. These results underline the usability of AChBP in structure-based in silico screening strategies in finding novel scaffolds for the alpha7 receptor, but also illustrates some limitations of using AChBP as bait to find competitive alpha4beta2 receptor ligands and alpha7 receptor agonists.

Acetylcholine binding protein (AChBP) as template for hierarchical in silico screening procedures to identify structurally novel ligands for the nicotinic receptors.,Akdemir A, Rucktooa P, Jongejan A, Elk R, Bertrand S, Sixma TK, Bertrand D, Smit AB, Leurs R, de Graaf C, de Esch IJ Bioorg Med Chem. 2011 Oct 15;19(20):6107-19. Epub 2011 Aug 27. PMID:21920761[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

See Also

References

  1. Akdemir A, Rucktooa P, Jongejan A, Elk R, Bertrand S, Sixma TK, Bertrand D, Smit AB, Leurs R, de Graaf C, de Esch IJ. Acetylcholine binding protein (AChBP) as template for hierarchical in silico screening procedures to identify structurally novel ligands for the nicotinic receptors. Bioorg Med Chem. 2011 Oct 15;19(20):6107-19. Epub 2011 Aug 27. PMID:21920761 doi:10.1016/j.bmc.2011.08.028

2xnu, resolution 2.55Å

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