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Conference Paper: Structural insights into BAF47 and BAF155 complex formation
Title | Structural insights into BAF47 and BAF155 complex formation |
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Authors | |
Issue Date | 2017 |
Publisher | The University of Hong Kong. |
Citation | 2017 Hong Kong Inter-University Postgraduate Symposium in Biochemical Sciences, The University of Hong Kong, Hong Kong, 16 June 2017 How to Cite? |
Abstract | Mammalian BAF complexes are a subfamily of SWI/SNF ATP-dependent chromatin remodelers that dynamically modulate chromatin structure to regulate fundamental cellular processes including gene transcription, cell cycle control and DNA damage response. So far many distinct BAF complexes have been identified with polymorphic assemblies of up to 15 subunits from 29 genes. The evolutionarily conserved BRG1/BRM, BAF47 and BAF155/BAF170 form a stable complex that carries out essential chromatin remodeling activity and therefore have been regarded as the core components of BAF complex. Here, we first confirmed that SWIRM domain of BAF155 is responsible for its interaction with BAF47, then narrowed down the SWIRM-binding region in BAF47 to the Repeat 1 (RPT1) domain. We further presented the high-resolution crystal structure of SWIRM/RPT1 complex. Extensive mutagenesis experiments together with ITC and NMR titrations were performed to corroborate the interactions observed in crystal structure. Overall, we demonstrated that BAF155 SWIRM is a modular domain involved in BAF47 interaction, which is functionally distinct from other characterized SWIRM domains that possess DNA binding activity. |
Description | Poster Presentation: no. P68 |
Persistent Identifier | http://hdl.handle.net/10722/242156 |
DC Field | Value | Language |
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dc.contributor.author | Yan, L | - |
dc.contributor.author | Xie, S | - |
dc.contributor.author | Du, Y | - |
dc.contributor.author | Qian, C | - |
dc.date.accessioned | 2017-07-24T01:36:07Z | - |
dc.date.available | 2017-07-24T01:36:07Z | - |
dc.date.issued | 2017 | - |
dc.identifier.citation | 2017 Hong Kong Inter-University Postgraduate Symposium in Biochemical Sciences, The University of Hong Kong, Hong Kong, 16 June 2017 | - |
dc.identifier.uri | http://hdl.handle.net/10722/242156 | - |
dc.description | Poster Presentation: no. P68 | - |
dc.description.abstract | Mammalian BAF complexes are a subfamily of SWI/SNF ATP-dependent chromatin remodelers that dynamically modulate chromatin structure to regulate fundamental cellular processes including gene transcription, cell cycle control and DNA damage response. So far many distinct BAF complexes have been identified with polymorphic assemblies of up to 15 subunits from 29 genes. The evolutionarily conserved BRG1/BRM, BAF47 and BAF155/BAF170 form a stable complex that carries out essential chromatin remodeling activity and therefore have been regarded as the core components of BAF complex. Here, we first confirmed that SWIRM domain of BAF155 is responsible for its interaction with BAF47, then narrowed down the SWIRM-binding region in BAF47 to the Repeat 1 (RPT1) domain. We further presented the high-resolution crystal structure of SWIRM/RPT1 complex. Extensive mutagenesis experiments together with ITC and NMR titrations were performed to corroborate the interactions observed in crystal structure. Overall, we demonstrated that BAF155 SWIRM is a modular domain involved in BAF47 interaction, which is functionally distinct from other characterized SWIRM domains that possess DNA binding activity. | - |
dc.language | eng | - |
dc.publisher | The University of Hong Kong. | - |
dc.relation.ispartof | Hong Kong Inter-University Postgraduate Symposium in Biochemical Sciences, 2017 | - |
dc.title | Structural insights into BAF47 and BAF155 complex formation | - |
dc.type | Conference_Paper | - |
dc.identifier.email | Xie, S: xiesi@hku.hk | - |
dc.identifier.email | Qian, C: cmqian@hku.hk | - |
dc.identifier.authority | Qian, C=rp01371 | - |
dc.identifier.hkuros | 273097 | - |
dc.publisher.place | Hong Kong | - |