6igm

Structural highlights

Disease

[SRCAP_HUMAN] Floating-Harbor syndrome. The disease is caused by mutations affecting the gene represented in this entry.

Function

[SRCAP_HUMAN] Catalytic component of the SRCAP complex which mediates the ATP-dependent exchange of histone H2AZ/H2B dimers for nucleosomal H2A/H2B, leading to transcriptional regulation of selected genes by chromatin remodeling. Acts as a coactivator for CREB-mediated transcription, steroid receptor-mediated transcription, and Notch-mediated transcription.^{[1] [2] [3] [4] [5] [6]} [RUVB1_HUMAN] Possesses single-stranded DNA-stimulated ATPase and ATP-dependent DNA helicase (3' to 5') activity; hexamerization is thought to be critical for ATP hydrolysis and adjacent subunits in the ring-like structure contribute to the ATPase activity.^{[7] [8] [9] [10] [11]} Component of the NuA4 histone acetyltransferase complex which is involved in transcriptional activation of select genes principally by acetylation of nucleosomal histones H4 and H2A. This modification may both alter nucleosome - DNA interactions and promote interaction of the modified histones with other proteins which positively regulate transcription. This complex may be required for the activation of transcriptional programs associated with oncogene and proto-oncogene mediated growth induction, tumor suppressor mediated growth arrest and replicative senescence, apoptosis, and DNA repair. The NuA4 complex ATPase and helicase activities seem to be, at least in part, contributed by the association of RUVBL1 and RUVBL2 with EP400. NuA4 may also play a direct role in DNA repair when recruited to sites of DNA damage.^{[12] [13] [14] [15] [16]} Proposed core component of the chromatin remodeling INO80 complex which is involved in transcriptional regulation, DNA replication and probably DNA repair.^{[17] [18] [19] [20] [21]} Plays an essential role in oncogenic transformation by MYC and also modulates transcriptional activation by the LEF1/TCF1-CTNNB1 complex. Essential for cell proliferation.^{[22] [23] [24] [25] [26]} May be able to bind plasminogen at cell surface and enhance plasminogen activation.^{[27] [28] [29] [30] [31]} [RUVB2_HUMAN] Possesses single-stranded DNA-stimulated ATPase and ATP-dependent DNA helicase (5' to 3') activity; hexamerization is thought to be critical for ATP hydrolysis and adjacent subunits in the ring-like structure contribute to the ATPase activity.^[32] Component of the NuA4 histone acetyltransferase complex which is involved in transcriptional activation of select genes principally by acetylation of nucleosomal histones H4 and H2A. This modification may both alter nucleosome - DNA interactions and promote interaction of the modified histones with other proteins which positively regulate transcription. This complex may be required for the activation of transcriptional programs associated with oncogene and proto-oncogene mediated growth induction, tumor suppressor mediated growth arrest and replicative senescence, apoptosis, and DNA repair. The NuA4 complex ATPase and helicase activities seem to be, at least in part, contributed by the association of RUVBL1 and RUVBL2 with EP400. NuA4 may also play a direct role in DNA repair when recruited to sites of DNA damage.^[33] Proposed core component of the chromatin remodeling INO80 complex which is involved in transcriptional regulation, DNA replication and probably DNA repair.^[34] Plays an essential role in oncogenic transformation by MYC and also modulates transcriptional activation by the LEF1/TCF1-CTNNB1 complex. May also inhibit the transcriptional activity of ATF2.^[35]

References

1. ↑ Johnston H, Kneer J, Chackalaparampil I, Yaciuk P, Chrivia J. Identification of a novel SNF2/SWI2 protein family member, SRCAP, which interacts with CREB-binding protein. J Biol Chem. 1999 Jun 4;274(23):16370-6. doi: 10.1074/jbc.274.23.16370. PMID:10347196 doi:http://dx.doi.org/10.1074/jbc.274.23.16370
2. ↑ Monroy MA, Ruhl DD, Xu X, Granner DK, Yaciuk P, Chrivia JC. Regulation of cAMP-responsive element-binding protein-mediated transcription by the SNF2/SWI-related protein, SRCAP. J Biol Chem. 2001 Nov 2;276(44):40721-6. Epub 2001 Aug 24. PMID:11522779 doi:http://dx.doi.org/10.1074/jbc.M103615200
3. ↑ Monroy MA, Schott NM, Cox L, Chen JD, Ruh M, Chrivia JC. SNF2-related CBP activator protein (SRCAP) functions as a coactivator of steroid receptor-mediated transcription through synergistic interactions with CARM-1 and GRIP-1. Mol Endocrinol. 2003 Dec;17(12):2519-28. Epub 2003 Sep 18. PMID:14500758 doi:http://dx.doi.org/10.1210/me.2003-0208
4. ↑ Eissenberg JC, Wong M, Chrivia JC. Human SRCAP and Drosophila melanogaster DOM are homologs that function in the notch signaling pathway. Mol Cell Biol. 2005 Aug;25(15):6559-69. doi: 10.1128/MCB.25.15.6559-6569.2005. PMID:16024792 doi:http://dx.doi.org/10.1128/MCB.25.15.6559-6569.2005
5. ↑ Ruhl DD, Jin J, Cai Y, Swanson S, Florens L, Washburn MP, Conaway RC, Conaway JW, Chrivia JC. Purification of a human SRCAP complex that remodels chromatin by incorporating the histone variant H2A.Z into nucleosomes. Biochemistry. 2006 May 2;45(17):5671-7. PMID:16634648 doi:http://dx.doi.org/10.1021/bi060043d
6. ↑ Wong MM, Cox LK, Chrivia JC. The chromatin remodeling protein, SRCAP, is critical for deposition of the histone variant H2A.Z at promoters. J Biol Chem. 2007 Sep 7;282(36):26132-9. Epub 2007 Jul 8. PMID:17617668 doi:http://dx.doi.org/M703418200
7. ↑ Hawley SB, Tamura T, Miles LA. Purification, cloning, and characterization of a profibrinolytic plasminogen-binding protein, TIP49a. J Biol Chem. 2001 Jan 5;276(1):179-86. PMID:11027681 doi:http://dx.doi.org/10.1074/jbc.M004919200
8. ↑ Gartner W, Rossbacher J, Zierhut B, Daneva T, Base W, Weissel M, Waldhausl W, Pasternack MS, Wagner L. The ATP-dependent helicase RUVBL1/TIP49a associates with tubulin during mitosis. Cell Motil Cytoskeleton. 2003 Oct;56(2):79-93. PMID:14506706 doi:http://dx.doi.org/10.1002/cm.10136
9. ↑ Bauer A, Chauvet S, Huber O, Usseglio F, Rothbacher U, Aragnol D, Kemler R, Pradel J. Pontin52 and reptin52 function as antagonistic regulators of beta-catenin signalling activity. EMBO J. 2000 Nov 15;19(22):6121-30. PMID:11080158 doi:http://dx.doi.org/10.1093/emboj/19.22.6121
10. ↑ Feng Y, Lee N, Fearon ER. TIP49 regulates beta-catenin-mediated neoplastic transformation and T-cell factor target gene induction via effects on chromatin remodeling. Cancer Res. 2003 Dec 15;63(24):8726-34. PMID:14695187
11. ↑ Doyon Y, Selleck W, Lane WS, Tan S, Cote J. Structural and functional conservation of the NuA4 histone acetyltransferase complex from yeast to humans. Mol Cell Biol. 2004 Mar;24(5):1884-96. PMID:14966270
12. ↑ Hawley SB, Tamura T, Miles LA. Purification, cloning, and characterization of a profibrinolytic plasminogen-binding protein, TIP49a. J Biol Chem. 2001 Jan 5;276(1):179-86. PMID:11027681 doi:http://dx.doi.org/10.1074/jbc.M004919200
13. ↑ Gartner W, Rossbacher J, Zierhut B, Daneva T, Base W, Weissel M, Waldhausl W, Pasternack MS, Wagner L. The ATP-dependent helicase RUVBL1/TIP49a associates with tubulin during mitosis. Cell Motil Cytoskeleton. 2003 Oct;56(2):79-93. PMID:14506706 doi:http://dx.doi.org/10.1002/cm.10136
14. ↑ Bauer A, Chauvet S, Huber O, Usseglio F, Rothbacher U, Aragnol D, Kemler R, Pradel J. Pontin52 and reptin52 function as antagonistic regulators of beta-catenin signalling activity. EMBO J. 2000 Nov 15;19(22):6121-30. PMID:11080158 doi:http://dx.doi.org/10.1093/emboj/19.22.6121
15. ↑ Feng Y, Lee N, Fearon ER. TIP49 regulates beta-catenin-mediated neoplastic transformation and T-cell factor target gene induction via effects on chromatin remodeling. Cancer Res. 2003 Dec 15;63(24):8726-34. PMID:14695187
16. ↑ Doyon Y, Selleck W, Lane WS, Tan S, Cote J. Structural and functional conservation of the NuA4 histone acetyltransferase complex from yeast to humans. Mol Cell Biol. 2004 Mar;24(5):1884-96. PMID:14966270
17. ↑ Hawley SB, Tamura T, Miles LA. Purification, cloning, and characterization of a profibrinolytic plasminogen-binding protein, TIP49a. J Biol Chem. 2001 Jan 5;276(1):179-86. PMID:11027681 doi:http://dx.doi.org/10.1074/jbc.M004919200
18. ↑ Gartner W, Rossbacher J, Zierhut B, Daneva T, Base W, Weissel M, Waldhausl W, Pasternack MS, Wagner L. The ATP-dependent helicase RUVBL1/TIP49a associates with tubulin during mitosis. Cell Motil Cytoskeleton. 2003 Oct;56(2):79-93. PMID:14506706 doi:http://dx.doi.org/10.1002/cm.10136
19. ↑ Bauer A, Chauvet S, Huber O, Usseglio F, Rothbacher U, Aragnol D, Kemler R, Pradel J. Pontin52 and reptin52 function as antagonistic regulators of beta-catenin signalling activity. EMBO J. 2000 Nov 15;19(22):6121-30. PMID:11080158 doi:http://dx.doi.org/10.1093/emboj/19.22.6121
20. ↑ Feng Y, Lee N, Fearon ER. TIP49 regulates beta-catenin-mediated neoplastic transformation and T-cell factor target gene induction via effects on chromatin remodeling. Cancer Res. 2003 Dec 15;63(24):8726-34. PMID:14695187
21. ↑ Doyon Y, Selleck W, Lane WS, Tan S, Cote J. Structural and functional conservation of the NuA4 histone acetyltransferase complex from yeast to humans. Mol Cell Biol. 2004 Mar;24(5):1884-96. PMID:14966270
22. ↑ Hawley SB, Tamura T, Miles LA. Purification, cloning, and characterization of a profibrinolytic plasminogen-binding protein, TIP49a. J Biol Chem. 2001 Jan 5;276(1):179-86. PMID:11027681 doi:http://dx.doi.org/10.1074/jbc.M004919200
23. ↑ Gartner W, Rossbacher J, Zierhut B, Daneva T, Base W, Weissel M, Waldhausl W, Pasternack MS, Wagner L. The ATP-dependent helicase RUVBL1/TIP49a associates with tubulin during mitosis. Cell Motil Cytoskeleton. 2003 Oct;56(2):79-93. PMID:14506706 doi:http://dx.doi.org/10.1002/cm.10136
24. ↑ Bauer A, Chauvet S, Huber O, Usseglio F, Rothbacher U, Aragnol D, Kemler R, Pradel J. Pontin52 and reptin52 function as antagonistic regulators of beta-catenin signalling activity. EMBO J. 2000 Nov 15;19(22):6121-30. PMID:11080158 doi:http://dx.doi.org/10.1093/emboj/19.22.6121
25. ↑ Feng Y, Lee N, Fearon ER. TIP49 regulates beta-catenin-mediated neoplastic transformation and T-cell factor target gene induction via effects on chromatin remodeling. Cancer Res. 2003 Dec 15;63(24):8726-34. PMID:14695187
26. ↑ Doyon Y, Selleck W, Lane WS, Tan S, Cote J. Structural and functional conservation of the NuA4 histone acetyltransferase complex from yeast to humans. Mol Cell Biol. 2004 Mar;24(5):1884-96. PMID:14966270
27. ↑ Hawley SB, Tamura T, Miles LA. Purification, cloning, and characterization of a profibrinolytic plasminogen-binding protein, TIP49a. J Biol Chem. 2001 Jan 5;276(1):179-86. PMID:11027681 doi:http://dx.doi.org/10.1074/jbc.M004919200
28. ↑ Gartner W, Rossbacher J, Zierhut B, Daneva T, Base W, Weissel M, Waldhausl W, Pasternack MS, Wagner L. The ATP-dependent helicase RUVBL1/TIP49a associates with tubulin during mitosis. Cell Motil Cytoskeleton. 2003 Oct;56(2):79-93. PMID:14506706 doi:http://dx.doi.org/10.1002/cm.10136
29. ↑ Bauer A, Chauvet S, Huber O, Usseglio F, Rothbacher U, Aragnol D, Kemler R, Pradel J. Pontin52 and reptin52 function as antagonistic regulators of beta-catenin signalling activity. EMBO J. 2000 Nov 15;19(22):6121-30. PMID:11080158 doi:http://dx.doi.org/10.1093/emboj/19.22.6121
30. ↑ Feng Y, Lee N, Fearon ER. TIP49 regulates beta-catenin-mediated neoplastic transformation and T-cell factor target gene induction via effects on chromatin remodeling. Cancer Res. 2003 Dec 15;63(24):8726-34. PMID:14695187
31. ↑ Doyon Y, Selleck W, Lane WS, Tan S, Cote J. Structural and functional conservation of the NuA4 histone acetyltransferase complex from yeast to humans. Mol Cell Biol. 2004 Mar;24(5):1884-96. PMID:14966270
32. ↑ Doyon Y, Selleck W, Lane WS, Tan S, Cote J. Structural and functional conservation of the NuA4 histone acetyltransferase complex from yeast to humans. Mol Cell Biol. 2004 Mar;24(5):1884-96. PMID:14966270
33. ↑ Doyon Y, Selleck W, Lane WS, Tan S, Cote J. Structural and functional conservation of the NuA4 histone acetyltransferase complex from yeast to humans. Mol Cell Biol. 2004 Mar;24(5):1884-96. PMID:14966270
34. ↑ Doyon Y, Selleck W, Lane WS, Tan S, Cote J. Structural and functional conservation of the NuA4 histone acetyltransferase complex from yeast to humans. Mol Cell Biol. 2004 Mar;24(5):1884-96. PMID:14966270
35. ↑ Doyon Y, Selleck W, Lane WS, Tan S, Cote J. Structural and functional conservation of the NuA4 histone acetyltransferase complex from yeast to humans. Mol Cell Biol. 2004 Mar;24(5):1884-96. PMID:14966270