This old version of Proteopedia is provided for student assignments while the new version is undergoing repairs. Content and edits done in this old version of Proteopedia after March 1, 2026 will eventually be lost when it is retired in about June of 2026.

Apply for new accounts at the new Proteopedia. Your logins will work in both the old and new versions.

1uoh

From Proteopedia

(Difference between revisions)

Jump to: navigation, search

Revision as of 09:48, 10 September 2015

HUMAN GANKYRIN

Structural highlights

1uoh is a 1 chain structure with sequence from Human. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum

Function

[PSD10_HUMAN] Acts as a chaperone during the assembly of the 26S proteasome, specifically of the PA700/19S regulatory complex (RC). In the initial step of the base subcomplex assembly is part of an intermediate PSMD10:PSMC4:PSMC5:PAAF1 module which probably assembles with a PSMD5:PSMC2:PSMC1:PSMD2 module. Independently of the proteasome, regulates EGF-induced AKT activation through inhibition of the RHOA/ROCK/PTEN pahway, leading to prolonged AKT activation. Plays an important role in RAS-induced tumorigenesis.^[1] ^[2] ^[3] ^[4] ^[5] ^[6] ^[7] ^[8] Acts as an proto-oncoprotein by being involved in negative regulation of tumor suppressors RB1 and p53/TP53. Overexpression is leading to phosphorylation of RB1 and proteasomal degradation of RB1. Regulates CDK4-mediated phosphorylation of RB1 by competing with CDKN2A for binding with CDK4. Facilitates binding of MDM2 to p53/TP53 and the mono- and polyubiquitination of p53/TP53 by MDM2 suggesting a function in targeting the TP53:MDM2 complex to the 26S proteasome. Involved in p53-independent apoptosis. Involved in regulation of NF-kappa-B by retaining it in the cytoplasm. Binds to the NF-kappa-B component RELA and accelerates its XPO1/CRM1-mediated nuclear export.^[9] ^[10] ^[11] ^[12] ^[13] ^[14] ^[15] ^[16]

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

Publication Abstract from PubMed

Gankyrin is a 25-kDa hepatocellular carcinoma-associated protein that mediates protein-protein interactions in cell cycle control and protein degradation. It has been reported to form complexes with cyclin-dependent kinase 4, retinoblastoma protein, the S6b ATPase subunit of the 19 S regulator of the 26 S proteasome, and Mdm2, an E3 ubiquitin ligase involved in p53 degradation. It is the first protein described to bind both to the 26 S proteasome and to proteins in other complexes containing cyclin-dependent kinase(s) and p53 ubiquitylating activities, thus providing a mechanism for delivering cell cycle regulating machinery and ubiquitylated substrates to the proteasome for degradation. Gankyrin contains a 33-residue motif known as the ankyrin repeat that occurs five and a half to six times in the sequence. As a step toward understanding gankyrin interactions with its protein partners we have determined its three-dimensional crystal structure to 2.0-A resolution. It reveals that the entire 226-residue gankyrin polypeptide folds into seven ankyrin repeat elements. The ankyrin repeats, consisting of an antiparallel beta-hairpin followed by a perpendicularly oriented helix-loop-helix, pack side-by-side, creating an extended curved structure with a groove running across the long concave surface. Comparison with the structures of other ankyrin repeat proteins suggests that interactions with partner proteins are mediated by residues situated on this concave surface.

The crystal structure of gankyrin, an oncoprotein found in complexes with cyclin-dependent kinase 4, a 19 S proteasomal ATPase regulator, and the tumor suppressors Rb and p53.,Krzywda S, Brzozowski AM, Higashitsuji H, Fujita J, Welchman R, Dawson S, Mayer RJ, Wilkinson AJ J Biol Chem. 2004 Jan 9;279(2):1541-5. Epub 2003 Oct 22. PMID:14573599^[17]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Higashitsuji H, Itoh K, Nagao T, Dawson S, Nonoguchi K, Kido T, Mayer RJ, Arii S, Fujita J. Reduced stability of retinoblastoma protein by gankyrin, an oncogenic ankyrin-repeat protein overexpressed in hepatomas. Nat Med. 2000 Jan;6(1):96-9. PMID:10613832 doi:http://dx.doi.org/10.1038/71600
↑ Li J, Tsai MD. Novel insights into the INK4-CDK4/6-Rb pathway: counter action of gankyrin against INK4 proteins regulates the CDK4-mediated phosphorylation of Rb. Biochemistry. 2002 Mar 26;41(12):3977-83. PMID:11900540
↑ Dawson S, Apcher S, Mee M, Higashitsuji H, Baker R, Uhle S, Dubiel W, Fujita J, Mayer RJ. Gankyrin is an ankyrin-repeat oncoprotein that interacts with CDK4 kinase and the S6 ATPase of the 26 S proteasome. J Biol Chem. 2002 Mar 29;277(13):10893-902. Epub 2002 Jan 4. PMID:11779854 doi:http://dx.doi.org/10.1074/jbc.M107313200
↑ Higashitsuji H, Higashitsuji H, Itoh K, Sakurai T, Nagao T, Sumitomo Y, Masuda T, Dawson S, Shimada Y, Mayer RJ, Fujita J. The oncoprotein gankyrin binds to MDM2/HDM2, enhancing ubiquitylation and degradation of p53. Cancer Cell. 2005 Jul;8(1):75-87. PMID:16023600 doi:http://dx.doi.org/10.1016/j.ccr.2005.06.006
↑ Chen Y, Li HH, Fu J, Wang XF, Ren YB, Dong LW, Tang SH, Liu SQ, Wu MC, Wang HY. Oncoprotein p28 GANK binds to RelA and retains NF-kappaB in the cytoplasm through nuclear export. Cell Res. 2007 Dec;17(12):1020-9. PMID:18040287 doi:http://dx.doi.org/10.1038/cr.2007.99
↑ Kaneko T, Hamazaki J, Iemura S, Sasaki K, Furuyama K, Natsume T, Tanaka K, Murata S. Assembly pathway of the Mammalian proteasome base subcomplex is mediated by multiple specific chaperones. Cell. 2009 May 29;137(5):914-25. doi: 10.1016/j.cell.2009.05.008. PMID:19490896 doi:http://dx.doi.org/10.1016/j.cell.2009.05.008
↑ Wang J, Wang XF, Zhang LG, Xie SY, Li ZL, Li YJ, Li HH, Jiao F. Involvement of the mitochondrial pathway in p53-independent apoptosis induced by p28GANK knockdown in Hep3B cells. Cytogenet Genome Res. 2009;125(2):87-97. doi: 10.1159/000227831. Epub 2009 Aug, 31. PMID:19729910 doi:http://dx.doi.org/10.1159/000227831
↑ Man JH, Liang B, Gu YX, Zhou T, Li AL, Li T, Jin BF, Bai B, Zhang HY, Zhang WN, Li WH, Gong WL, Li HY, Zhang XM. Gankyrin plays an essential role in Ras-induced tumorigenesis through regulation of the RhoA/ROCK pathway in mammalian cells. J Clin Invest. 2010 Aug;120(8):2829-41. doi: 10.1172/JCI42542. Epub 2010 Jul 12. PMID:20628200 doi:http://dx.doi.org/10.1172/JCI42542
↑ Higashitsuji H, Itoh K, Nagao T, Dawson S, Nonoguchi K, Kido T, Mayer RJ, Arii S, Fujita J. Reduced stability of retinoblastoma protein by gankyrin, an oncogenic ankyrin-repeat protein overexpressed in hepatomas. Nat Med. 2000 Jan;6(1):96-9. PMID:10613832 doi:http://dx.doi.org/10.1038/71600
↑ Li J, Tsai MD. Novel insights into the INK4-CDK4/6-Rb pathway: counter action of gankyrin against INK4 proteins regulates the CDK4-mediated phosphorylation of Rb. Biochemistry. 2002 Mar 26;41(12):3977-83. PMID:11900540
↑ Dawson S, Apcher S, Mee M, Higashitsuji H, Baker R, Uhle S, Dubiel W, Fujita J, Mayer RJ. Gankyrin is an ankyrin-repeat oncoprotein that interacts with CDK4 kinase and the S6 ATPase of the 26 S proteasome. J Biol Chem. 2002 Mar 29;277(13):10893-902. Epub 2002 Jan 4. PMID:11779854 doi:http://dx.doi.org/10.1074/jbc.M107313200
↑ Higashitsuji H, Higashitsuji H, Itoh K, Sakurai T, Nagao T, Sumitomo Y, Masuda T, Dawson S, Shimada Y, Mayer RJ, Fujita J. The oncoprotein gankyrin binds to MDM2/HDM2, enhancing ubiquitylation and degradation of p53. Cancer Cell. 2005 Jul;8(1):75-87. PMID:16023600 doi:http://dx.doi.org/10.1016/j.ccr.2005.06.006
↑ Chen Y, Li HH, Fu J, Wang XF, Ren YB, Dong LW, Tang SH, Liu SQ, Wu MC, Wang HY. Oncoprotein p28 GANK binds to RelA and retains NF-kappaB in the cytoplasm through nuclear export. Cell Res. 2007 Dec;17(12):1020-9. PMID:18040287 doi:http://dx.doi.org/10.1038/cr.2007.99
↑ Kaneko T, Hamazaki J, Iemura S, Sasaki K, Furuyama K, Natsume T, Tanaka K, Murata S. Assembly pathway of the Mammalian proteasome base subcomplex is mediated by multiple specific chaperones. Cell. 2009 May 29;137(5):914-25. doi: 10.1016/j.cell.2009.05.008. PMID:19490896 doi:http://dx.doi.org/10.1016/j.cell.2009.05.008
↑ Wang J, Wang XF, Zhang LG, Xie SY, Li ZL, Li YJ, Li HH, Jiao F. Involvement of the mitochondrial pathway in p53-independent apoptosis induced by p28GANK knockdown in Hep3B cells. Cytogenet Genome Res. 2009;125(2):87-97. doi: 10.1159/000227831. Epub 2009 Aug, 31. PMID:19729910 doi:http://dx.doi.org/10.1159/000227831
↑ Man JH, Liang B, Gu YX, Zhou T, Li AL, Li T, Jin BF, Bai B, Zhang HY, Zhang WN, Li WH, Gong WL, Li HY, Zhang XM. Gankyrin plays an essential role in Ras-induced tumorigenesis through regulation of the RhoA/ROCK pathway in mammalian cells. J Clin Invest. 2010 Aug;120(8):2829-41. doi: 10.1172/JCI42542. Epub 2010 Jul 12. PMID:20628200 doi:http://dx.doi.org/10.1172/JCI42542
↑ Krzywda S, Brzozowski AM, Higashitsuji H, Fujita J, Welchman R, Dawson S, Mayer RJ, Wilkinson AJ. The crystal structure of gankyrin, an oncoprotein found in complexes with cyclin-dependent kinase 4, a 19 S proteasomal ATPase regulator, and the tumor suppressors Rb and p53. J Biol Chem. 2004 Jan 9;279(2):1541-5. Epub 2003 Oct 22. PMID:14573599 doi:http://dx.doi.org/10.1074/jbc.M310265200

1 Structural highlights
2 Function
3 Evolutionary Conservation
4 Publication Abstract from PubMed
5 See Also
6 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/1uoh"

@@ Line 2: / Line 2: @@
 <StructureSection load='1uoh' size='340' side='right' caption='[[1uoh]], [[Resolution|resolution]] 2.00&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[1uoh]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1UOH OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1UOH FirstGlance]. <br>
+<table><tr><td colspan='2'>[[1uoh]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1UOH OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1UOH FirstGlance]. <br>
-</td></tr><tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1uoh FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1uoh OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1uoh RCSB], [http://www.ebi.ac.uk/pdbsum/1uoh PDBsum]</span></td></tr>
+</td></tr><tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1uoh FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1uoh OCA], [http://pdbe.org/1uoh PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1uoh RCSB], [http://www.ebi.ac.uk/pdbsum/1uoh PDBsum]</span></td></tr>
 </table>
+== Function ==
+[[http://www.uniprot.org/uniprot/PSD10_HUMAN PSD10_HUMAN]] Acts as a chaperone during the assembly of the 26S proteasome, specifically of the PA700/19S regulatory complex (RC). In the initial step of the base subcomplex assembly is part of an intermediate PSMD10:PSMC4:PSMC5:PAAF1 module which probably assembles with a PSMD5:PSMC2:PSMC1:PSMD2 module. Independently of the proteasome, regulates EGF-induced AKT activation through inhibition of the RHOA/ROCK/PTEN pahway, leading to prolonged AKT activation. Plays an important role in RAS-induced tumorigenesis.<ref>PMID:10613832</ref> <ref>PMID:11900540</ref> <ref>PMID:11779854</ref> <ref>PMID:16023600</ref> <ref>PMID:18040287</ref> <ref>PMID:19490896</ref> <ref>PMID:19729910</ref> <ref>PMID:20628200</ref>   Acts as an proto-oncoprotein by being involved in negative regulation of tumor suppressors RB1 and p53/TP53. Overexpression is leading to phosphorylation of RB1 and proteasomal degradation of RB1. Regulates CDK4-mediated phosphorylation of RB1 by competing with CDKN2A for binding with CDK4. Facilitates binding of MDM2 to p53/TP53 and the mono- and polyubiquitination of p53/TP53 by MDM2 suggesting a function in targeting the TP53:MDM2 complex to the 26S proteasome. Involved in p53-independent apoptosis. Involved in regulation of NF-kappa-B by retaining it in the cytoplasm. Binds to the NF-kappa-B component RELA and accelerates its XPO1/CRM1-mediated nuclear export.<ref>PMID:10613832</ref> <ref>PMID:11900540</ref> <ref>PMID:11779854</ref> <ref>PMID:16023600</ref> <ref>PMID:18040287</ref> <ref>PMID:19490896</ref> <ref>PMID:19729910</ref> <ref>PMID:20628200</ref>
 == Evolutionary Conservation ==
 [[Image:Consurf_key_small.gif|200px|right]]
@@ Line 23: / Line 25: @@
 From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 </div>
+<div class="pdbe-citations 1uoh" style="background-color:#fffaf0;"></div>
 ==See Also==
@@ Line 31: / Line 34: @@
 __TOC__
 </StructureSection>
-[[Category: Homo sapiens]]
+[[Category: Human]]
 [[Category: Brzozowski, A M]]
 [[Category: Krzywda, S]]

1uoh

From Proteopedia

Revision as of 09:48, 10 September 2015

HUMAN GANKYRIN

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

Personal tools

Navigation

Search

Toolbox