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National Repository of Grey Literature 2 records found  Search took 0.00 seconds. 
Characterizing DDI2 protein interaction by solution NMR
 Staníček, Jakub ; Grantz Šašková, Klára (advisor) ; Obšil, Tomáš (referee)
Human DDI2 protein is a dimeric aspartic protease that has been recently found to play an important role in DNA damage repair and transcriptional regulation of the proteasome expression. Current insights into the mechanistic details of both functions are still quite limited. We have previously identified the human RAD23B protein to interact with the DDI2 protein. RAD23B also functions in DNA damage repair as part of the XPC complex that stimulates the nucleotide excision repair activity. Moreover, RAD23B participates as an adaptor protein in the process of protein degradation. Therefore, the interaction of DDI2 and RAD23B might have important implications for both known functions of DDI2. This work describes the DDI2 and RAD23B interaction on the structural level. Recombinant protein variants of both DDI2 and RAD23B proteins were prepared and the interaction was mapped by the affinity pull-down assay. Protein NMR titrations were further used to explore the interaction. Key words: ubiquitin-proteasome system, DNA damage repair, proteasome expression regulation, aspartyl protease, DDI2, NMR
Detailed record
Characterizing DDI2 protein interaction by solution NMR
 Staníček, Jakub ; Grantz Šašková, Klára (advisor) ; Obšil, Tomáš (referee)
Human DDI2 protein is a dimeric aspartic protease that has been recently found to play an important role in DNA damage repair and transcriptional regulation of the proteasome expression. Current insights into the mechanistic details of both functions are still quite limited. We have previously identified the human RAD23B protein to interact with the DDI2 protein. RAD23B also functions in DNA damage repair as part of the XPC complex that stimulates the nucleotide excision repair activity. Moreover, RAD23B participates as an adaptor protein in the process of protein degradation. Therefore, the interaction of DDI2 and RAD23B might have important implications for both known functions of DDI2. This work describes the DDI2 and RAD23B interaction on the structural level. Recombinant protein variants of both DDI2 and RAD23B proteins were prepared and the interaction was mapped by the affinity pull-down assay. Protein NMR titrations were further used to explore the interaction. Key words: ubiquitin-proteasome system, DNA damage repair, proteasome expression regulation, aspartyl protease, DDI2, NMR
Detailed record

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