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2exm

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{{STRUCTURE_2exm| PDB=2exm | SCENE= }}
{{STRUCTURE_2exm| PDB=2exm | SCENE= }}
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'''Human CDK2 in complex with isopentenyladenine'''
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===Human CDK2 in complex with isopentenyladenine===
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==Overview==
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Cyclin-dependent kinases (CDKs) are conserved regulators of the eukaryotic cell cycle with different isoforms controlling specific phases of the cell cycle. Mitogenic or growth inhibitory signals are mediated, respectively, by activation or inhibition of CDKs which phosphorylate proteins associated with the cell cycle. The central role of CDKs in cell cycle regulation makes them a potential new target for inhibitory molecules with anti-proliferative and/or anti-neoplastic effects. We describe the crystal structures of the complexes of CDK2 with a weakly specific CDK inhibitor, N6-(delta 2-isopentenyl)adenine, and a strongly specific inhibitor, olomoucine. Both inhibitors are adenine derivatives and bind in the adenine binding pocket of CDK2, but in an unexpected and different orientation from the adenine of the authentic ligand ATP. The N6-benzyl substituent in olomoucine binds outside the conserved binding pocket and is most likely responsible for its specificity. The structural information from the CDK2-olomoucine complex will be useful in directing the search for the next generation inhibitors with improved properties.
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(as it appears on PubMed at http://www.pubmed.gov), where 7479711 is the PubMed ID number.
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{{ABSTRACT_PUBMED_7479711}}
==About this Structure==
==About this Structure==
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[[Category: Ligand binding pocket between n-terminal and c-terminal domain]]
[[Category: Ligand binding pocket between n-terminal and c-terminal domain]]
[[Category: Typical protein kinase fold]]
[[Category: Typical protein kinase fold]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun May 4 03:13:51 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jul 28 21:41:23 2008''

Revision as of 18:41, 28 July 2008

Image:2exm.png

Template:STRUCTURE 2exm

Human CDK2 in complex with isopentenyladenine

Template:ABSTRACT PUBMED 7479711

About this Structure

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

Reference

Multiple modes of ligand recognition: crystal structures of cyclin-dependent protein kinase 2 in complex with ATP and two inhibitors, olomoucine and isopentenyladenine., Schulze-Gahmen U, Brandsen J, Jones HD, Morgan DO, Meijer L, Vesely J, Kim SH, Proteins. 1995 Aug;22(4):378-91. PMID:7479711

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