2z7q

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{{STRUCTURE_2z7q| PDB=2z7q | SCENE= }}
{{STRUCTURE_2z7q| PDB=2z7q | SCENE= }}
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'''Crystal structure of the N-terminal kinase domain of human RSK-1 bound to AMP-PCP'''
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===Crystal structure of the N-terminal kinase domain of human RSK-1 bound to AMP-PCP===
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==Overview==
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The p90 ribosomal S6 kinases (RSKs) also known as MAPKAP-Ks are serine/threonine protein kinases that are activated by ERK or PDK1 and act as downstream effectors of mitogen-activated protein kinase (MAPK). RSK1, a member of the RSK family, contains two distinct kinase domains in a single polypeptide chain, the regulatory C-terminal kinase domain (CTKD) and the catalytic N-terminal kinase domain (NTKD). Autophosphorylation of the CTKD leads to activation of the NTKD that subsequently phosphorylates downstream substrates. Here we report the crystal structures of the unactivated RSK1 NTKD bound to different ligands at 2.0 A resolution. The activation loop and helix alphaC, key regulatory elements of kinase function, are disordered. The DFG motif of the inactive RSK1 adopts an "active-like" conformation. The beta-PO(4) group in the AMP-PCP complex adopts a unique conformation that may contribute to inactivity of the enzyme. Structures of RSK1 ligand complexes offer insights into the design of novel anticancer agents and into the regulation of the catalytic activity of RSKs.
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{{ABSTRACT_PUBMED_17965187}}
==About this Structure==
==About this Structure==
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[[Category: Serine/threonine-protein kinase]]
[[Category: Serine/threonine-protein kinase]]
[[Category: Transferase]]
[[Category: Transferase]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jul 28 07:14:42 2008''

Revision as of 04:14, 28 July 2008

Image:2z7q.png

Template:STRUCTURE 2z7q

Crystal structure of the N-terminal kinase domain of human RSK-1 bound to AMP-PCP

Template:ABSTRACT PUBMED 17965187

About this Structure

2Z7Q is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.

Reference

Crystal structures of the N-terminal kinase domain of human RSK1 bound to three different ligands: Implications for the design of RSK1 specific inhibitors., Ikuta M, Kornienko M, Byrne N, Reid JC, Mizuarai S, Kotani H, Munshi SK, Protein Sci. 2007 Dec;16(12):2626-35. Epub 2007 Oct 26. PMID:17965187

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