1gux
From Proteopedia
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|ACTIVITY= | |ACTIVITY= | ||
|GENE= | |GENE= | ||
| + | |DOMAIN= | ||
| + | |RELATEDENTRY= | ||
| + | |RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1gux FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1gux OCA], [http://www.ebi.ac.uk/pdbsum/1gux PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1gux RCSB]</span> | ||
}} | }} | ||
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==Overview== | ==Overview== | ||
The pocket domain of the retinoblastoma (Rb) tumour suppressor is central to Rb function, and is frequently inactivated by the binding of the human papilloma virus E7 oncoprotein in cervical cancer. The crystal structure of the Rb pocket bound to a nine-residue E7 peptide containing the LxCxE motif, shared by other Rb-binding viral and cellular proteins, shows that the LxCxE peptide binds a highly conserved groove on the B-box portion of the pocket; the A-box portion appears to be required for the stable folding of the B box. Also highly conserved is the extensive A-B interface, suggesting that it may be an additional protein-binding site. The A and B boxes each contain the cyclin-fold structural motif, with the LxCxE-binding site on the B-box cyclin fold being similar to a Cdk2-binding site of cyclin A and to a TBP-binding site of TFIIB. | The pocket domain of the retinoblastoma (Rb) tumour suppressor is central to Rb function, and is frequently inactivated by the binding of the human papilloma virus E7 oncoprotein in cervical cancer. The crystal structure of the Rb pocket bound to a nine-residue E7 peptide containing the LxCxE motif, shared by other Rb-binding viral and cellular proteins, shows that the LxCxE peptide binds a highly conserved groove on the B-box portion of the pocket; the A-box portion appears to be required for the stable folding of the B box. Also highly conserved is the extensive A-B interface, suggesting that it may be an additional protein-binding site. The A and B boxes each contain the cyclin-fold structural motif, with the LxCxE-binding site on the B-box cyclin fold being similar to a Cdk2-binding site of cyclin A and to a TBP-binding site of TFIIB. | ||
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| - | ==Disease== | ||
| - | Known diseases associated with this structure: Bladder cancer OMIM:[[http://www.ncbi.nlm.nih.gov/entrez/dispomim.cgi?id=180200 180200]], Osteosarcoma OMIM:[[http://www.ncbi.nlm.nih.gov/entrez/dispomim.cgi?id=180200 180200]], Pinealoma with bilateral retinoblastoma OMIM:[[http://www.ncbi.nlm.nih.gov/entrez/dispomim.cgi?id=180200 180200]], Retinoblastoma OMIM:[[http://www.ncbi.nlm.nih.gov/entrez/dispomim.cgi?id=180200 180200]] | ||
==About this Structure== | ==About this Structure== | ||
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[[Category: tumor suppressor protein]] | [[Category: tumor suppressor protein]] | ||
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 30 20:51:55 2008'' |
Revision as of 17:51, 30 March 2008
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| , resolution 1.85Å | |||||||
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| Resources: | FirstGlance, OCA, PDBsum, RCSB | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
RB POCKET BOUND TO E7 LXCXE MOTIF
Overview
The pocket domain of the retinoblastoma (Rb) tumour suppressor is central to Rb function, and is frequently inactivated by the binding of the human papilloma virus E7 oncoprotein in cervical cancer. The crystal structure of the Rb pocket bound to a nine-residue E7 peptide containing the LxCxE motif, shared by other Rb-binding viral and cellular proteins, shows that the LxCxE peptide binds a highly conserved groove on the B-box portion of the pocket; the A-box portion appears to be required for the stable folding of the B box. Also highly conserved is the extensive A-B interface, suggesting that it may be an additional protein-binding site. The A and B boxes each contain the cyclin-fold structural motif, with the LxCxE-binding site on the B-box cyclin fold being similar to a Cdk2-binding site of cyclin A and to a TBP-binding site of TFIIB.
About this Structure
1GUX is a Protein complex structure of sequences from Homo sapiens and Human papillomavirus. Full crystallographic information is available from OCA.
Reference
Structure of the retinoblastoma tumour-suppressor pocket domain bound to a peptide from HPV E7., Lee JO, Russo AA, Pavletich NP, Nature. 1998 Feb 26;391(6670):859-65. PMID:9495340
Page seeded by OCA on Sun Mar 30 20:51:55 2008
