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2qdj

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{{STRUCTURE_2qdj| PDB=2qdj | SCENE= }}
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'''Crystal structure of the Retinoblastoma protein N-domain provides insight into tumor suppression, ligand interaction and holoprotein architecture'''
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===Crystal structure of the Retinoblastoma protein N-domain provides insight into tumor suppression, ligand interaction and holoprotein architecture===
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==Overview==
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The retinoblastoma susceptibility protein, Rb, has a key role in regulating cell-cycle progression via interactions involving the central "pocket" and C-terminal regions. While the N-terminal domain of Rb is dispensable for this function, it is nonetheless strongly conserved and harbors missense mutations found in hereditary retinoblastoma, indicating that disruption of its function is oncogenic. The crystal structure of the Rb N-terminal domain (RbN), reveals a globular entity formed by two rigidly connected cyclin-like folds. The similarity of RbN to the A and B boxes of the Rb pocket domain suggests that Rb evolved through domain duplication. Structural and functional analysis provides insight into oncogenicity of mutations in RbN and identifies a unique phosphorylation-regulated site of protein interaction. Additionally, this analysis suggests a coherent conformation for the Rb holoprotein in which RbN and pocket domains directly interact, and which can be modulated through ligand binding and possibly Rb phosphorylation.
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{{ABSTRACT_PUBMED_17996702}}
==Disease==
==Disease==
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[[Category: Cyclin fold]]
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Revision as of 10:57, 29 July 2008

Image:2qdj.png

Template:STRUCTURE 2qdj

Contents

Crystal structure of the Retinoblastoma protein N-domain provides insight into tumor suppression, ligand interaction and holoprotein architecture

Template:ABSTRACT PUBMED 17996702

Disease

Known disease associated with this structure: Bladder cancer OMIM:[180200], Osteosarcoma OMIM:[180200], Pinealoma with bilateral retinoblastoma OMIM:[180200], Retinoblastoma OMIM:[180200]

About this Structure

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

Reference

Crystal structure of the retinoblastoma protein N domain provides insight into tumor suppression, ligand interaction, and holoprotein architecture., Hassler M, Singh S, Yue WW, Luczynski M, Lakbir R, Sanchez-Sanchez F, Bader T, Pearl LH, Mittnacht S, Mol Cell. 2007 Nov 9;28(3):371-85. PMID:17996702

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