共查询到20条相似文献,搜索用时 31 毫秒
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The ETO protein disrupted in t(8;21)-associated acute myeloid leukemia is a corepressor for the promyelocytic leukemia zinc finger protein 总被引:11,自引:0,他引:11
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Melnick AM Westendorf JJ Polinger A Carlile GW Arai S Ball HJ Lutterbach B Hiebert SW Licht JD 《Molecular and cellular biology》2000,20(6):2075-2086
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ETO, a target of t(8;21) in acute leukemia, makes distinct contacts with multiple histone deacetylases and binds mSin3A through its oligomerization domain 总被引:14,自引:0,他引:14
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Amann JM Nip J Strom DK Lutterbach B Harada H Lenny N Downing JR Meyers S Hiebert SW 《Molecular and cellular biology》2001,21(19):6470-6483
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ETO, a Target of t(8;21) in Acute Leukemia, Interacts with the N-CoR and mSin3 Corepressors 总被引:22,自引:7,他引:22
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Bart Lutterbach Jennifer J. Westendorf Bryan Linggi Andrea Patten Mariko Moniwa James R. Davie Khanh D. Huynh Vivian J. Bardwell Robert M. Lavinsky Michael G. Rosenfeld Christopher Glass Edward Seto Scott W. Hiebert 《Molecular and cellular biology》1998,18(12):7176-7184
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The VASP-Spred-Sprouty domain puzzle 总被引:3,自引:0,他引:3
Sprouty-related proteins with an EVH1 domain (Spreds) belong to a new protein family harboring a conserved N-terminal EVH1 domain, which is related to the VASP (vasodilator-stimulated phosphoprotein) EVH1 domain (Enabled/VASP homology 1 domain) and a C-terminal Sprouty-related domain, typical for Sprouty proteins. Spreds were, like Sproutys, initially discovered as inhibitors of the Ras/MAPK pathway, and the SPR (Sprouty-related) domains of both protein families seem to be very important for many protein interactions and cellular processes. VASP was initially characterized as a proline-rich substrate of protein kinases A and G in human platelets and later shown to be a scaffold protein, regulating both signal transduction pathways and the actin filament system. The VASP-EVH1 domain is known to bind specifically to a FP(4) binding motif, which is, for example, present in the focal adhesion proteins vinculin and zyxin. In this review we give a structural and functional overview on these three protein families and ask whether nature plays a modular protein domain puzzle with stable exchangeable elements or if these closely related domains have various functions when pasted in a different protein context. 相似文献
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Shin-Yuan Gu Wan-Sheng Lo Shaw-Jye Wu Long-Chi Wang 《The Plant journal : for cell and molecular biology》2021,105(5):1293-1308
ETHYLENE OVERPRODUCER1 (ETO1), ETO1-LIKE1 (EOL1), and EOL2 are members of the Broad complex, Tramtrack, Bric-a-brac (BTB) protein family that collectively regulate type-2 1-aminocyclopropane-1-carboxylic acid synthase (ACS) activity in Arabidopsis thaliana. Although ETO1 and EOL1/EOL2 encode structurally related proteins, genetic studies suggest that they do not play an equivalent role in regulating ethylene biosynthesis. The mechanistic details underlying the genetic analysis remain elusive. In this study, we reveal that ETO1 collaborates with EOL1/2 to play a key role in the regulation of type-2 ACS activity via protein–protein interactions. ETO1, EOL1, and EOL2 exhibit overlapping but distinct tissue-specific expression patterns. Nevertheless, neither EOL1 nor EOL2 can fully complement the eto1 phenotype under control of the ETO1 promoter, which suggests differential functions of ETO1 and EOL1/EOL2. ETO1 forms homodimers with itself and heterodimers with EOLs. Furthermore, CULLIN3 (CUL3) interacts preferentially with ETO1. The BTB domain of ETO1 is sufficient for interaction with CUL3 and is required for homodimerization. However, domain-swapping analysis in transgenic Arabidopsis suggests that the BTB domain of ETO1 is essential but not sufficient for a full spectrum of ETO1 function. The missense mutation in eto1-5 generates a substitution of phenylalanine with an isoleucine in ETO1F466I that impairs its dimerization and interaction with EOLs but does not affect binding to CUL3 or ACS5. Overexpression of ETO1F466I in Arabidopsis results in a constitutive triple response phenotype in dark-grown seedlings. Our findings reveal the mechanistic role of protein–protein interactions of ETO1 and EOL1/EOL2 that is crucial for their biological function in ethylene biosynthesis. 相似文献
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