2ltx
From Proteopedia
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{{STRUCTURE_2ltx| PDB=2ltx | SCENE= }} | {{STRUCTURE_2ltx| PDB=2ltx | SCENE= }} | ||
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===Smurf1 WW2 domain in complex with a Smad7 derived peptide=== | ===Smurf1 WW2 domain in complex with a Smad7 derived peptide=== | ||
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{{ABSTRACT_PUBMED_22921829}} | {{ABSTRACT_PUBMED_22921829}} | ||
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| + | ==Disease== | ||
| + | [[http://www.uniprot.org/uniprot/SMAD7_HUMAN SMAD7_HUMAN]] Genetic variations in SMAD7 influence susceptibility to colorectal cancer type 3 (CRCS3) [MIM:[http://omim.org/entry/612229 612229]]. Colorectal cancer consists of tumors or cancer of either the colon or rectum or both. Cancers of the large intestine are the second most common form of cancer found in males and females. Symptoms include rectal bleeding, occult blood in stools, bowel obstruction and weight loss. Treatment is based largely on the extent of cancer penetration into the intestinal wall. Surgical cures are possible if the malignancy is confined to the intestine. Risk can be reduced when following a diet which is low in fat and high in fiber.<ref>PMID:17934461</ref> | ||
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| + | ==Function== | ||
| + | [[http://www.uniprot.org/uniprot/SMUF1_HUMAN SMUF1_HUMAN]] E3 ubiquitin-protein ligase that acts as a negative regulator of BMP signaling pathway. Mediates ubiquitination and degradation of SMAD1 and SMAD5, 2 receptor-regulated SMADs specific for the BMP pathway. Promotes ubiquitination and subsequent proteasomal degradation of TRAF family members and RHOA.<ref>PMID:10458166</ref><ref>PMID:19937093</ref><ref>PMID:21402695</ref> [[http://www.uniprot.org/uniprot/SMAD7_HUMAN SMAD7_HUMAN]] Antagonist of signaling by TGF-beta (transforming growth factor) type 1 receptor superfamily members; has been shown to inhibit TGF-beta (Transforming growth factor) and activin signaling by associating with their receptors thus preventing SMAD2 access. Functions as an adapter to recruit SMURF2 to the TGF-beta receptor complex. Also acts by recruiting the PPP1R15A-PP1 complex to TGFBR1, which promotes its dephosphorylation. Positively regulates PDPK1 kinase activity by stimulating its dissociation from the 14-3-3 protein YWHAQ which acts as a negative regulator (By similarity).<ref>PMID:9892009</ref><ref>PMID:11163210</ref><ref>PMID:12023024</ref><ref>PMID:14718519</ref><ref>PMID:17327236</ref> | ||
==About this Structure== | ==About this Structure== | ||
[[2ltx]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2LTX OCA]. | [[2ltx]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2LTX OCA]. | ||
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| + | ==Reference== | ||
| + | <references group="xtra"/><references/> | ||
[[Category: Homo sapiens]] | [[Category: Homo sapiens]] | ||
[[Category: Aragon, E.]] | [[Category: Aragon, E.]] | ||
Revision as of 23:45, 24 March 2013
Contents |
Smurf1 WW2 domain in complex with a Smad7 derived peptide
Template:ABSTRACT PUBMED 22921829
Disease
[SMAD7_HUMAN] Genetic variations in SMAD7 influence susceptibility to colorectal cancer type 3 (CRCS3) [MIM:612229]. Colorectal cancer consists of tumors or cancer of either the colon or rectum or both. Cancers of the large intestine are the second most common form of cancer found in males and females. Symptoms include rectal bleeding, occult blood in stools, bowel obstruction and weight loss. Treatment is based largely on the extent of cancer penetration into the intestinal wall. Surgical cures are possible if the malignancy is confined to the intestine. Risk can be reduced when following a diet which is low in fat and high in fiber.[1]
Function
[SMUF1_HUMAN] E3 ubiquitin-protein ligase that acts as a negative regulator of BMP signaling pathway. Mediates ubiquitination and degradation of SMAD1 and SMAD5, 2 receptor-regulated SMADs specific for the BMP pathway. Promotes ubiquitination and subsequent proteasomal degradation of TRAF family members and RHOA.[2][3][4] [SMAD7_HUMAN] Antagonist of signaling by TGF-beta (transforming growth factor) type 1 receptor superfamily members; has been shown to inhibit TGF-beta (Transforming growth factor) and activin signaling by associating with their receptors thus preventing SMAD2 access. Functions as an adapter to recruit SMURF2 to the TGF-beta receptor complex. Also acts by recruiting the PPP1R15A-PP1 complex to TGFBR1, which promotes its dephosphorylation. Positively regulates PDPK1 kinase activity by stimulating its dissociation from the 14-3-3 protein YWHAQ which acts as a negative regulator (By similarity).[5][6][7][8][9]
About this Structure
2ltx is a 2 chain structure with sequence from Homo sapiens. Full experimental information is available from OCA.
Reference
- ↑ Broderick P, Carvajal-Carmona L, Pittman AM, Webb E, Howarth K, Rowan A, Lubbe S, Spain S, Sullivan K, Fielding S, Jaeger E, Vijayakrishnan J, Kemp Z, Gorman M, Chandler I, Papaemmanuil E, Penegar S, Wood W, Sellick G, Qureshi M, Teixeira A, Domingo E, Barclay E, Martin L, Sieber O, Kerr D, Gray R, Peto J, Cazier JB, Tomlinson I, Houlston RS. A genome-wide association study shows that common alleles of SMAD7 influence colorectal cancer risk. Nat Genet. 2007 Nov;39(11):1315-7. Epub 2007 Oct 14. PMID:17934461 doi:ng.2007.18
- ↑ Zhu H, Kavsak P, Abdollah S, Wrana JL, Thomsen GH. A SMAD ubiquitin ligase targets the BMP pathway and affects embryonic pattern formation. Nature. 1999 Aug 12;400(6745):687-93. PMID:10458166 doi:10.1038/23293
- ↑ Li S, Lu K, Wang J, An L, Yang G, Chen H, Cui Y, Yin X, Xie P, Xing G, He F, Zhang L. Ubiquitin ligase Smurf1 targets TRAF family proteins for ubiquitination and degradation. Mol Cell Biochem. 2010 May;338(1-2):11-7. doi: 10.1007/s11010-009-0315-y. Epub, 2009 Nov 24. PMID:19937093 doi:10.1007/s11010-009-0315-y
- ↑ Lu K, Li P, Zhang M, Xing G, Li X, Zhou W, Bartlam M, Zhang L, Rao Z, He F. Pivotal role of the C2 domain of the Smurf1 ubiquitin ligase in substrate selection. J Biol Chem. 2011 May 13;286(19):16861-70. Epub 2011 Mar 14. PMID:21402695 doi:10.1074/jbc.M110.211979
- ↑ Lebrun JJ, Takabe K, Chen Y, Vale W. Roles of pathway-specific and inhibitory Smads in activin receptor signaling. Mol Endocrinol. 1999 Jan;13(1):15-23. PMID:9892009
- ↑ Kavsak P, Rasmussen RK, Causing CG, Bonni S, Zhu H, Thomsen GH, Wrana JL. Smad7 binds to Smurf2 to form an E3 ubiquitin ligase that targets the TGF beta receptor for degradation. Mol Cell. 2000 Dec;6(6):1365-75. PMID:11163210
- ↑ Liu X, Nagarajan RP, Vale W, Chen Y. Phosphorylation regulation of the interaction between Smad7 and activin type I receptor. FEBS Lett. 2002 May 22;519(1-3):93-8. PMID:12023024
- ↑ Shi W, Sun C, He B, Xiong W, Shi X, Yao D, Cao X. GADD34-PP1c recruited by Smad7 dephosphorylates TGFbeta type I receptor. J Cell Biol. 2004 Jan 19;164(2):291-300. Epub 2004 Jan 12. PMID:14718519 doi:10.1083/jcb.200307151
- ↑ Seong HA, Jung H, Kim KT, Ha H. 3-Phosphoinositide-dependent PDK1 negatively regulates transforming growth factor-beta-induced signaling in a kinase-dependent manner through physical interaction with Smad proteins. J Biol Chem. 2007 Apr 20;282(16):12272-89. Epub 2007 Feb 27. PMID:17327236 doi:10.1074/jbc.M609279200
Categories: Homo sapiens | Aragon, E. | Gao, S. | Goerner, N. | Lopes, T. | Macias, M J. | Massague, J. | Xi, Q. | Protein binding-peptide complex | Smad7 | Smurf1 | Ww
