1qmz
From Proteopedia
(New page: 200px<br /> <applet load="1qmz" size="450" color="white" frame="true" align="right" spinBox="true" caption="1qmz, resolution 2.2Å" /> '''PHOSPHORYLATED CDK2-...) |
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| - | [[Image:1qmz. | + | [[Image:1qmz.jpg|left|200px]]<br /><applet load="1qmz" size="350" color="white" frame="true" align="right" spinBox="true" |
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caption="1qmz, resolution 2.2Å" /> | caption="1qmz, resolution 2.2Å" /> | ||
'''PHOSPHORYLATED CDK2-CYCLYIN A-SUBSTRATE PEPTIDE COMPLEX'''<br /> | '''PHOSPHORYLATED CDK2-CYCLYIN A-SUBSTRATE PEPTIDE COMPLEX'''<br /> | ||
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==About this Structure== | ==About this Structure== | ||
| - | 1QMZ is a [http://en.wikipedia.org/wiki/Protein_complex Protein complex] structure of sequences from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] with MG and ATP as [http://en.wikipedia.org/wiki/ligands ligands]. Full crystallographic information is available from [http:// | + | 1QMZ is a [http://en.wikipedia.org/wiki/Protein_complex Protein complex] structure of sequences from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] with <scene name='pdbligand=MG:'>MG</scene> and <scene name='pdbligand=ATP:'>ATP</scene> as [http://en.wikipedia.org/wiki/ligands ligands]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1QMZ OCA]. |
==Reference== | ==Reference== | ||
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[[Category: substrate complex]] | [[Category: substrate complex]] | ||
| - | ''Page seeded by [http:// | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri Feb 15 16:45:20 2008'' |
Revision as of 14:45, 15 February 2008
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PHOSPHORYLATED CDK2-CYCLYIN A-SUBSTRATE PEPTIDE COMPLEX
Overview
Progression through the eukaryotic cell cycle is driven by the orderly, activation of cyclin-dependent kinases (CDKs). For activity, CDKs require, association with a cyclin and phosphorylation by a separate protein kinase, at a conserved threonine residue (T160 in CDK2). Here we present the, structure of a complex consisting of phosphorylated CDK2 and cyclin A, together with an optimal peptide substrate, HHASPRK. This structure, provides an explanation for the specificity of CDK2 towards the proline, that follows the phosphorylatable serine of the substrate peptide, and the, requirement for the basic residue in the P+3 position of the substrate. We, also present the structure of phosphorylated CDK2 plus cyclin A3 in, complex with residues 658-668 from the CDK2 substrate p107. These residues, include the RXL motif required to target p107 to cyclins. This structure, explains the specificity of the RXL motif for cyclins.
About this Structure
1QMZ is a Protein complex structure of sequences from Homo sapiens with and as ligands. Full crystallographic information is available from OCA.
Reference
The structural basis for specificity of substrate and recruitment peptides for cyclin-dependent kinases., Brown NR, Noble ME, Endicott JA, Johnson LN, Nat Cell Biol. 1999 Nov;1(7):438-43. PMID:10559988
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