| Structural highlights
2kyg is a 3 chain structure with sequence from Human. Full experimental information is available from OCA. For a guided tour on the structure components use FirstGlance.
| | Gene: | PRKAR2A, PKR2, PRKAR2 (HUMAN), RUNX1T1, AML1T1, CBFA2T1, CDR, ETO, MTG8, ZMYND2 (HUMAN) |
| Resources: | FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT |
Disease
[MTG8_HUMAN] Note=A chromosomal aberration involving RUNX1T1 is a cause of acute myeloid leukemia (AML-M2). Translocation t(8;21)(q22;q22) with RUNX1/AML1.[1] [2] [3] [4] Defects in RUNX1T1 may be a cause of colorectal cancer (CRC) [MIM:114500].
Function
[KAP2_HUMAN] Regulatory subunit of the cAMP-dependent protein kinases involved in cAMP signaling in cells. Type II regulatory chains mediate membrane association by binding to anchoring proteins, including the MAP2 kinase. [MTG8_HUMAN] Transcription regulator that excerts its function by binding to histone deacetylases and transcription factors. Can repress transactivation mediated by TCF12.[5] [6]
Publication Abstract from PubMed
AML1-ETO is the chimeric protein product of t(8;21) in acute myeloid leukemia. The ETO portion of the fusion protein includes the nervy homology region (NHR) 3 domain, which shares homology with A-kinase anchoring proteins and interacts with the regulatory subunit of type II cAMP-dependent protein kinase A (PKA(RIIalpha)). We determined the solution structure of a complex between the AML1-ETO NHR3 domain and PKA(RIIalpha). Based on this structure, a key residue in AML1-ETO for PKA(RIIalpha) association was mutated. This mutation did not disrupt AML1-ETO's ability to enhance the clonogenic capacity of primary mouse bone marrow cells or its ability to repress proliferation or granulocyte differentiation. Introduction of the mutation into AML1-ETO had minimal impact on in vivo leukemogenesis. Therefore, the NHR3-PKA(RIIalpha) protein interaction does not appear to significantly contribute to AML1-ETO's ability to induce leukemia.
Structure of the AML1-ETO NHR3-PKA(RIIalpha) complex and its contribution to AML1-ETO activity.,Corpora T, Roudaia L, Oo ZM, Chen W, Manuylova E, Cai X, Chen MJ, Cierpicki T, Speck NA, Bushweller JH J Mol Biol. 2010 Sep 24;402(3):560-77. Epub 2010 Aug 11. PMID:20708017[7]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
- ↑ Miyoshi H, Kozu T, Shimizu K, Enomoto K, Maseki N, Kaneko Y, Kamada N, Ohki M. The t(8;21) translocation in acute myeloid leukemia results in production of an AML1-MTG8 fusion transcript. EMBO J. 1993 Jul;12(7):2715-21. PMID:8334990
- ↑ Era T, Asou N, Kunisada T, Yamasaki H, Asou H, Kamada N, Nishikawa S, Yamaguchi K, Takatsuki K. Identification of two transcripts of AML1/ETO-fused gene in t(8;21) leukemic cells and expression of wild-type ETO gene in hematopoietic cells. Genes Chromosomes Cancer. 1995 May;13(1):25-33. PMID:7541640
- ↑ Kozu T, Miyoshi H, Shimizu K, Maseki N, Kaneko Y, Asou H, Kamada N, Ohki M. Junctions of the AML1/MTG8(ETO) fusion are constant in t(8;21) acute myeloid leukemia detected by reverse transcription polymerase chain reaction. Blood. 1993 Aug 15;82(4):1270-6. PMID:8353289
- ↑ Nisson PE, Watkins PC, Sacchi N. Transcriptionally active chimeric gene derived from the fusion of the AML1 gene and a novel gene on chromosome 8 in t(8;21) leukemic cells. Cancer Genet Cytogenet. 1992 Oct 15;63(2):81-8. PMID:1423235
- ↑ Wood JD, Nucifora FC Jr, Duan K, Zhang C, Wang J, Kim Y, Schilling G, Sacchi N, Liu JM, Ross CA. Atrophin-1, the dentato-rubral and pallido-luysian atrophy gene product, interacts with ETO/MTG8 in the nuclear matrix and represses transcription. J Cell Biol. 2000 Sep 4;150(5):939-48. PMID:10973986
- ↑ Plevin MJ, Zhang J, Guo C, Roeder RG, Ikura M. The acute myeloid leukemia fusion protein AML1-ETO targets E proteins via a paired amphipathic helix-like TBP-associated factor homology domain. Proc Natl Acad Sci U S A. 2006 Jul 5;103(27):10242-7. Epub 2006 Jun 27. PMID:16803958
- ↑ Corpora T, Roudaia L, Oo ZM, Chen W, Manuylova E, Cai X, Chen MJ, Cierpicki T, Speck NA, Bushweller JH. Structure of the AML1-ETO NHR3-PKA(RIIalpha) complex and its contribution to AML1-ETO activity. J Mol Biol. 2010 Sep 24;402(3):560-77. Epub 2010 Aug 11. PMID:20708017 doi:10.1016/j.jmb.2010.08.007
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