期刊名称:Proceedings of the National Academy of Sciences
印刷版ISSN:0027-8424
电子版ISSN:1091-6490
出版年度:1990
卷号:87
期号:23
页码:9148-9152
DOI:10.1073/pnas.87.23.9148
语种:English
出版社:The National Academy of Sciences of the United States of America
摘要:Proper initiation of transcription by RNA polymerase II requires the TATA-consensus-binding transcription factor TFIID. A cDNA clone encoding the Drosophila TFIID protein has been isolated and characterized. The deduced amino acid sequence reveals an open reading frame of 353 residues. The carboxyl-terminal 180 amino acids are approximately 80% identical to yeast TFIID and 88% identical to human TFIID. The amino-terminal portions of the yeast and Drosophila TFIID proteins lack appreciable homology, whereas the Drosophila and human amino termini appear qualitatively similar. In addition, the amino-terminal region of the Drosophila TFIID contains several sequence motifs that are found in other Drosophila proteins which appear to regulate transcription.