1sy9

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{{STRUCTURE_1sy9| PDB=1sy9 | SCENE= }}
{{STRUCTURE_1sy9| PDB=1sy9 | SCENE= }}
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'''Structure of calmodulin complexed with a fragment of the olfactory CNG channel'''
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===Structure of calmodulin complexed with a fragment of the olfactory CNG channel===
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==Overview==
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The NMR high-resolution structure of calmodulin complexed with a fragment of the olfactory cyclic-nucleotide gated channel is described. This structure shows features that are unique for this complex, including an active role of the linker connecting the N- and C-lobes of calmodulin upon binding of the peptide. Such linker is not only involved in the formation of an hydrophobic pocket to accommodate a bulky peptide residue, but it also provides a positively charged region complementary to a negative charge of the target. This complex of calmodulin with a target not belonging to the kinase family was used to test the residual dipolar coupling (RDC) approach for the determination of calmodulin binding modes to peptides. Although the complex here characterized belongs to the (1--14) family, high Q values were obtained with all the 1:1 complexes for which crystalline structures are available. Reduction of the RDC data set used for the correlation analysis to structured regions of the complex allowed a clear identification of the binding mode. Excluded regions comprise calcium binding loops and loops connecting the EF-hand motifs.
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The line below this paragraph, {{ABSTRACT_PUBMED_15803393}}, adds the Publication Abstract to the page
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{{ABSTRACT_PUBMED_15803393}}
==About this Structure==
==About this Structure==
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1SY9 is a [[Protein complex]] structure of sequences from [http://en.wikipedia.org/wiki/Xenopus_laevis Xenopus laevis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1SY9 OCA].
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1SY9 is a [[Protein complex]] structure of sequences from [http://en.wikipedia.org/wiki/Xenopus_laevis Xenopus laevis]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1SY9 OCA].
==Reference==
==Reference==
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[[Category: Torre, V.]]
[[Category: Torre, V.]]
[[Category: 4 helix-turn-helix]]
[[Category: 4 helix-turn-helix]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jul 28 14:43:46 2008''

Revision as of 11:43, 28 July 2008

Image:1sy9.png

Template:STRUCTURE 1sy9

Structure of calmodulin complexed with a fragment of the olfactory CNG channel

Template:ABSTRACT PUBMED 15803393

About this Structure

1SY9 is a Protein complex structure of sequences from Xenopus laevis. Full experimental information is available from OCA.

Reference

Structure of calmodulin complexed with an olfactory CNG channel fragment and role of the central linker: residual dipolar couplings to evaluate calmodulin binding modes outside the kinase family., Contessa GM, Orsale M, Melino S, Torre V, Paci M, Desideri A, Cicero DO, J Biomol NMR. 2005 Mar;31(3):185-99. PMID:15803393

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