2foo: Difference between revisions
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New page: left|200px<br /> <applet load="2foo" size="450" color="white" frame="true" align="right" spinBox="true" caption="2foo, resolution 2.20Å" /> '''The Crystal Strucur... |
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[[Image:2foo.gif|left|200px]]<br /> | [[Image:2foo.gif|left|200px]]<br /><applet load="2foo" size="350" color="white" frame="true" align="right" spinBox="true" | ||
<applet load="2foo" size=" | |||
caption="2foo, resolution 2.20Å" /> | caption="2foo, resolution 2.20Å" /> | ||
'''The Crystal Strucure of the N-terminal domain of HAUSP/USP7 complexed with p53 peptide 359-362'''<br /> | '''The Crystal Strucure of the N-terminal domain of HAUSP/USP7 complexed with p53 peptide 359-362'''<br /> | ||
==Overview== | ==Overview== | ||
The ubiquitin-specific protease, USP7, has key roles in the p53 pathway | The ubiquitin-specific protease, USP7, has key roles in the p53 pathway whereby it stabilizes both p53 and MDM2. We show that the N-terminal domain of USP7 binds two closely spaced 4-residue sites in both p53 and MDM2, falling between p53 residues 359-367 and MDM2 residues 147-159. Cocrystal structures with USP7 were determined for both p53 peptides and for one MDM2 peptide. These peptides bind the same surface of USP7 as Epstein-Barr nuclear antigen-1, explaining the competitive nature of the interactions. The structures and mutagenesis data indicate a preference for a P/AXXS motif in peptides that bind USP7. Contacts made by serine are identical and crucial for all peptides, and Trp165 in the peptide-binding pocket of USP7 is also crucial. These results help to elucidate the mechanism of substrate recognition by USP7 and the regulation of the p53 pathway. | ||
==About this Structure== | ==About this Structure== | ||
2FOO is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Active as [http://en.wikipedia.org/wiki/Ubiquitin_thiolesterase Ubiquitin thiolesterase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.1.2.15 3.1.2.15] Full crystallographic information is available from [http:// | 2FOO is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Active as [http://en.wikipedia.org/wiki/Ubiquitin_thiolesterase Ubiquitin thiolesterase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.1.2.15 3.1.2.15] Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2FOO OCA]. | ||
==Reference== | ==Reference== | ||
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[[Category: Single protein]] | [[Category: Single protein]] | ||
[[Category: Ubiquitin thiolesterase]] | [[Category: Ubiquitin thiolesterase]] | ||
[[Category: Arrowsmith, C | [[Category: Arrowsmith, C H.]] | ||
[[Category: Duan, S.]] | [[Category: Duan, S.]] | ||
[[Category: Frappier, L.]] | [[Category: Frappier, L.]] | ||
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[[Category: math domain]] | [[Category: math domain]] | ||
''Page seeded by [http:// | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Feb 21 17:23:38 2008'' | ||