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2gwf
From Proteopedia
(New page: 200px<br /> <applet load="2gwf" size="450" color="white" frame="true" align="right" spinBox="true" caption="2gwf, resolution 2.30Å" /> '''Structure of a USP8...) |
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| - | [[Image:2gwf.gif|left|200px]]<br /> | + | [[Image:2gwf.gif|left|200px]]<br /><applet load="2gwf" size="350" color="white" frame="true" align="right" spinBox="true" |
| - | <applet load="2gwf" size=" | + | |
caption="2gwf, resolution 2.30Å" /> | caption="2gwf, resolution 2.30Å" /> | ||
'''Structure of a USP8-NRDP1 complex'''<br /> | '''Structure of a USP8-NRDP1 complex'''<br /> | ||
==Overview== | ==Overview== | ||
| - | Ubiquitin-specific protease 8 (USP8) hydrolyzes mono and polyubiquitylated | + | Ubiquitin-specific protease 8 (USP8) hydrolyzes mono and polyubiquitylated targets such as epidermal growth factor receptors and is involved in clathrin-mediated internalization. In 1182 residues, USP8 contains multiple domains, including coiled-coil, rhodanese, and catalytic domains. We report the first high-resolution crystal structures of these domains and discuss their implications for USP8 function. The amino-terminal domain is a homodimer with a novel fold. It is composed of two five-helix bundles, where the first helices are swapped, and carboxyl-terminal helices are extended in an antiparallel fashion. The structure of the rhodanese domain, determined in complex with the E3 ligase NRDP1, reveals the canonical rhodanese fold but with a distorted primordial active site. The USP8 recognition domain of NRDP1 has a novel protein fold that interacts with a conserved peptide loop of the rhodanese domain. A consensus sequence of this loop is found in other NRDP1 targets, suggesting a common mode of interaction. The structure of the carboxyl-terminal catalytic domain of USP8 exhibits the conserved tripartite architecture but shows unique traits. Notably, the active site, including the ubiquitin binding pocket, is in a closed conformation, incompatible with substrate binding. The presence of a zinc ribbon subdomain near the ubiquitin binding site further suggests a polyubiquitin-specific binding site and a mechanism for substrate induced conformational changes. |
==About this Structure== | ==About this Structure== | ||
| - | 2GWF is a [http://en.wikipedia.org/wiki/Protein_complex Protein complex] structure of sequences 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:// | + | 2GWF is a [http://en.wikipedia.org/wiki/Protein_complex Protein complex] structure of sequences 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=2GWF OCA]. |
==Reference== | ==Reference== | ||
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[[Category: Protein complex]] | [[Category: Protein complex]] | ||
[[Category: Ubiquitin thiolesterase]] | [[Category: Ubiquitin thiolesterase]] | ||
| - | [[Category: Arrowsmith, C | + | [[Category: Arrowsmith, C H.]] |
| - | [[Category: Avvakumov, G | + | [[Category: Avvakumov, G V.]] |
[[Category: Bochkarev, A.]] | [[Category: Bochkarev, A.]] | ||
[[Category: Butler-Cole, C.]] | [[Category: Butler-Cole, C.]] | ||
[[Category: Dhe-Paganon, S.]] | [[Category: Dhe-Paganon, S.]] | ||
| - | [[Category: Edwards, A | + | [[Category: Edwards, A M.]] |
| - | [[Category: Jr., P | + | [[Category: Jr., P J.Finerty.]] |
| - | [[Category: Newman, E | + | [[Category: Newman, E M.]] |
| - | [[Category: SGC, Structural | + | [[Category: SGC, Structural Genomics Consortium.]] |
[[Category: Sundstrom, M.]] | [[Category: Sundstrom, M.]] | ||
| - | [[Category: Walker, J | + | [[Category: Walker, J R.]] |
[[Category: Weigelt, J.]] | [[Category: Weigelt, J.]] | ||
[[Category: Xue, S.]] | [[Category: Xue, S.]] | ||
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[[Category: ubl conjugation pathway]] | [[Category: ubl conjugation pathway]] | ||
| - | ''Page seeded by [http:// | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Feb 21 17:36:04 2008'' |
Revision as of 15:36, 21 February 2008
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Structure of a USP8-NRDP1 complex
Overview
Ubiquitin-specific protease 8 (USP8) hydrolyzes mono and polyubiquitylated targets such as epidermal growth factor receptors and is involved in clathrin-mediated internalization. In 1182 residues, USP8 contains multiple domains, including coiled-coil, rhodanese, and catalytic domains. We report the first high-resolution crystal structures of these domains and discuss their implications for USP8 function. The amino-terminal domain is a homodimer with a novel fold. It is composed of two five-helix bundles, where the first helices are swapped, and carboxyl-terminal helices are extended in an antiparallel fashion. The structure of the rhodanese domain, determined in complex with the E3 ligase NRDP1, reveals the canonical rhodanese fold but with a distorted primordial active site. The USP8 recognition domain of NRDP1 has a novel protein fold that interacts with a conserved peptide loop of the rhodanese domain. A consensus sequence of this loop is found in other NRDP1 targets, suggesting a common mode of interaction. The structure of the carboxyl-terminal catalytic domain of USP8 exhibits the conserved tripartite architecture but shows unique traits. Notably, the active site, including the ubiquitin binding pocket, is in a closed conformation, incompatible with substrate binding. The presence of a zinc ribbon subdomain near the ubiquitin binding site further suggests a polyubiquitin-specific binding site and a mechanism for substrate induced conformational changes.
About this Structure
2GWF is a Protein complex structure of sequences from Homo sapiens. Active as Ubiquitin thiolesterase, with EC number 3.1.2.15 Full crystallographic information is available from OCA.
Reference
Amino-terminal dimerization, NRDP1-rhodanese interaction, and inhibited catalytic domain conformation of the ubiquitin-specific protease 8 (USP8)., Avvakumov GV, Walker JR, Xue S, Finerty PJ Jr, Mackenzie F, Newman EM, Dhe-Paganon S, J Biol Chem. 2006 Dec 8;281(49):38061-70. Epub 2006 Oct 11. PMID:17035239
Page seeded by OCA on Thu Feb 21 17:36:04 2008
Categories: Homo sapiens | Protein complex | Ubiquitin thiolesterase | Arrowsmith, C H. | Avvakumov, G V. | Bochkarev, A. | Butler-Cole, C. | Dhe-Paganon, S. | Edwards, A M. | Jr., P J.Finerty. | Newman, E M. | SGC, Structural Genomics Consortium. | Sundstrom, M. | Walker, J R. | Weigelt, J. | Xue, S. | E3 ligase | Hydrolase | Protease | Protein ubiquitination | Protein-protein complex | Sgc | Structural genomics | Structural genomics consortium | Ubl conjugation pathway
