4roj: Difference between revisions

Revision as of 02:58, 5 August 2016

Crystal Structure of the VAV2 SH2 domain in complex with TXNIP phosphorylated peptide

Structural highlights

4roj is a 6 chain structure. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	UNX
NonStd Res:	ACE, NH2, PTR
Related:	4rof, 4roh, 4roi
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[VAV2_HUMAN] Guanine nucleotide exchange factor for the Rho family of Ras-related GTPases. Plays an important role in angiogenesis. Its recruitment by phosphorylated EPHA2 is critical for EFNA1-induced RAC1 GTPase activation and vascular endothelial cell migration and assembly (By similarity). [TXNIP_HUMAN] May act as an oxidative stress mediator by inhibiting thioredoxin activity or by limiting its bioavailability. Interacts with COPS5 and restores COPS5-induced suppression of CDKN1B stability, blocking the COPS5-mediated translocation of CDKN1B from the nucleus to the cytoplasm. Functions as a transcriptional repressor, possibly by acting as a bridge molecule between transcription factors and corepressor complexes, and over-expression will induce G0/G1 cell cycle arrest. Required for the maturation of natural killer cells. Acts as a suppressor of tumor cell growth. Inhibits the proteasomal degradation of DDIT4, and thereby contributes to the inhibition of the mammalian target of rapamycin complex 1 (mTORC1).^[1] ^[2] ^[3] ^[4]

References

↑ Liyanage NP, Fernando MR, Lou MF. Regulation of the bioavailability of thioredoxin in the lens by a specific thioredoxin-binding protein (TBP-2). Exp Eye Res. 2007 Aug;85(2):270-9. Epub 2007 May 21. PMID:17603038 doi:S0014-4835(07)00133-9
↑ Han SH, Jeon JH, Ju HR, Jung U, Kim KY, Yoo HS, Lee YH, Song KS, Hwang HM, Na YS, Yang Y, Lee KN, Choi I. VDUP1 upregulated by TGF-beta1 and 1,25-dihydorxyvitamin D3 inhibits tumor cell growth by blocking cell-cycle progression. Oncogene. 2003 Jun 26;22(26):4035-46. PMID:12821938 doi:10.1038/sj.onc.1206610
↑ Shin KH, Kim RH, Kim RH, Kang MK, Park NH. hnRNP G elicits tumor-suppressive activity in part by upregulating the expression of Txnip. Biochem Biophys Res Commun. 2008 Aug 8;372(4):880-5. doi:, 10.1016/j.bbrc.2008.05.175. Epub 2008 Jun 9. PMID:18541147 doi:10.1016/j.bbrc.2008.05.175
↑ Jin HO, Seo SK, Kim YS, Woo SH, Lee KH, Yi JY, Lee SJ, Choe TB, Lee JH, An S, Hong SI, Park IC. TXNIP potentiates Redd1-induced mTOR suppression through stabilization of Redd1. Oncogene. 2011 Sep 1;30(35):3792-801. doi: 10.1038/onc.2011.102. Epub 2011 Apr 4. PMID:21460850 doi:10.1038/onc.2011.102

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OCA

[1] Liyanage NP, Fernando MR, Lou MF. Regulation of the bioavailability of thioredoxin in the lens by a specific thioredoxin-binding protein (TBP-2). Exp Eye Res. 2007 Aug;85(2):270-9. Epub 2007 May 21. PMID:17603038 doi:S0014-4835(07)00133-9

[2] Han SH, Jeon JH, Ju HR, Jung U, Kim KY, Yoo HS, Lee YH, Song KS, Hwang HM, Na YS, Yang Y, Lee KN, Choi I. VDUP1 upregulated by TGF-beta1 and 1,25-dihydorxyvitamin D3 inhibits tumor cell growth by blocking cell-cycle progression. Oncogene. 2003 Jun 26;22(26):4035-46. PMID:12821938 doi:10.1038/sj.onc.1206610

[3] Shin KH, Kim RH, Kim RH, Kang MK, Park NH. hnRNP G elicits tumor-suppressive activity in part by upregulating the expression of Txnip. Biochem Biophys Res Commun. 2008 Aug 8;372(4):880-5. doi:, 10.1016/j.bbrc.2008.05.175. Epub 2008 Jun 9. PMID:18541147 doi:10.1016/j.bbrc.2008.05.175

[4] Jin HO, Seo SK, Kim YS, Woo SH, Lee KH, Yi JY, Lee SJ, Choe TB, Lee JH, An S, Hong SI, Park IC. TXNIP potentiates Redd1-induced mTOR suppression through stabilization of Redd1. Oncogene. 2011 Sep 1;30(35):3792-801. doi: 10.1038/onc.2011.102. Epub 2011 Apr 4. PMID:21460850 doi:10.1038/onc.2011.102

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@@ Line 1: / Line 1: @@
 ==Crystal Structure of the VAV2 SH2 domain in complex with TXNIP phosphorylated peptide==
 <StructureSection load='4roj' size='340' side='right' caption='[[4roj]], [[Resolution|resolution]] 1.95&Aring;' scene=''>
@@ Line 6: / Line 7: @@
 <tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=ACE:ACETYL+GROUP'>ACE</scene>, <scene name='pdbligand=NH2:AMINO+GROUP'>NH2</scene>, <scene name='pdbligand=PTR:O-PHOSPHOTYROSINE'>PTR</scene></td></tr>
 <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[4rof|4rof]], [[4roh|4roh]], [[4roi|4roi]]</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=4roj FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4roj OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4roj RCSB], [http://www.ebi.ac.uk/pdbsum/4roj PDBsum]</span></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=4roj FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4roj OCA], [http://pdbe.org/4roj PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4roj RCSB], [http://www.ebi.ac.uk/pdbsum/4roj PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4roj ProSAT]</span></td></tr>
 </table>
 == Function ==

4roj: Difference between revisions

Revision as of 02:58, 5 August 2016

Crystal Structure of the VAV2 SH2 domain in complex with TXNIP phosphorylated peptide

Structural highlights

Function

References

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