Structural and functional analysis of yeast putative adaptors. Evidence for an adaptor complex in vivo. Export

@article{citeulike:1954324, abstract = {Putative transcriptional adaptor proteins are found in eukaryotes from yeast to humans and are required for full function of many eukaryotic acidic activators. To study their functional interactions, deletion mutations in the yeast adaptors ADA2, GCN5, and ADA3 were created. We defined a region within the middle of GCN5 required for interaction with ADA2 in vitro. We identified regions of ADA2 required for function in vivo and determined whether these same regions are involved in physical interaction of ADA2 with GCN5 or ADA3 in vitro. Two regions were crucial for ADA2 function in vivo, the amino terminus and a middle region. Immunoprecipitation analysis showed that the amino terminus of ADA2 was required for interaction with GCN5, while a region in the middle of ADA2 was necessary for interaction with ADA3. Deletions of the region that was required for interaction with ADA3 abolished dependence of lexA-ADA2 transcriptional activity on ADA3. Moreover, using coimmunoprecipitation analysis, physical interaction between ADA2, ADA3, and GCN5 was demonstrated in yeast extracts. Taken together, the physical interaction in vivo, along with the correlation observed between regions of ADA2 required for in vitro interaction with GCN5 and ADA3, and regions required for function in vivo, argue for the existence of a physiologically relevant adaptor complex.}, address = {Wistar Institute, Philadelphia, Pennsylvania 19104, USA.}, author = {Candau, R. and Berger, S. L.}, citeulike-article-id = {1954324}, citeulike-linkout-0 = {http://view.ncbi.nlm.nih.gov/pubmed/8617808}, citeulike-linkout-1 = {http://www.hubmed.org/display.cgi?uids=8617808}, day = {1}, issn = {0021-9258}, journal = {J Biol Chem}, keywords = {transcription}, month = {March}, number = {9}, pages = {5237--5245}, posted-at = {2007-11-21 21:01:45}, priority = {2}, title = {Structural and functional analysis of yeast putative adaptors. Evidence for an adaptor complex in vivo.}, url = {http://view.ncbi.nlm.nih.gov/pubmed/8617808}, volume = {271}, year = {1996} }

TY - JOUR ID - citeulike:1954324 L3 - citeulike-article-id:1954324 N2 - Putative transcriptional adaptor proteins are found in eukaryotes from yeast to humans and are required for full function of many eukaryotic acidic activators. To study their functional interactions, deletion mutations in the yeast adaptors ADA2, GCN5, and ADA3 were created. We defined a region within the middle of GCN5 required for interaction with ADA2 in vitro. We identified regions of ADA2 required for function in vivo and determined whether these same regions are involved in physical interaction of ADA2 with GCN5 or ADA3 in vitro. Two regions were crucial for ADA2 function in vivo, the amino terminus and a middle region. Immunoprecipitation analysis showed that the amino terminus of ADA2 was required for interaction with GCN5, while a region in the middle of ADA2 was necessary for interaction with ADA3. Deletions of the region that was required for interaction with ADA3 abolished dependence of lexA-ADA2 transcriptional activity on ADA3. Moreover, using coimmunoprecipitation analysis, physical interaction between ADA2, ADA3, and GCN5 was demonstrated in yeast extracts. Taken together, the physical interaction in vivo, along with the correlation observed between regions of ADA2 required for in vitro interaction with GCN5 and ADA3, and regions required for function in vivo, argue for the existence of a physiologically relevant adaptor complex. IS - 9 JF - J Biol Chem SN - 0021-9258 AD - Wistar Institute, Philadelphia, Pennsylvania 19104, USA. EP - 5245 TI - Structural and functional analysis of yeast putative adaptors. Evidence for an adaptor complex in vivo. VL - 271 SP - 5237 KW - transcription AU - Candau, R AU - Berger, SL PY - 1996/03/01/ UR - http://view.ncbi.nlm.nih.gov/pubmed/8617808 ER -