Development of a System for the Study of Protein−Protein Interactionsin Planta: Characterization of a TATA-Box Binding Protein Complex inOryza sativa
Journal of Proteome Research2003Vol. 2(5), pp. 514–522
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Jingping Zhong, Paul A. Haynes, Shiping Zhang, Xinping Yang, Nancy L. Andon, Donna Eckert, John R. Yates, Xun Wang, Paul Budworth
Abstract
We describe a simple, rapid method for protein complex purification in planta. Using a biotin peptide as an affinity tag with TATA-box binding protein (TBP), 86 unique proteins present in the purified complex were identified by tandem mass spectrometry. We identified proteins known to be associated with TBP, and many other proteins involved in pre-mRNA processing and chromatin remodeling. The identification of these novel protein-protein associations will upon further investigations provide new insights into the mechanisms of mRNA transcription and pre-mRNA processing.
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