The CSRE (carbon source-responsive element) is a sequence motif responsible for the transcriptional activation of gluconeogenic structural genes in Saccharomyces cerevisiae. We have isolated a regulatory gene, DIL1 (derepression of isocitrate lyase, = CAT8), which is specifically required for derepression of CSRE-dependent genes. Expression of CAT8 is carbon source regulated and requires a functional Cat1p (Snf1p) protein kinase. The derepression defect of CAT8 in a cat1 mutant could be suppressed by a mutant Mig1p repressor protein. Derepression of CAT8 also requires a functional HAP2 gene, suggesting a regulatory connection between respiratory and gluconeogenic genes. Carbon source-dependent protein-CSRE complexes detected in a gel retardation analysis with wild-type extracts were absent in cat8 mutant extracts. However, similar experiments with an epitope-tagged CAT8 gene product in the presence of tag-specific antibodies gave evidence against a direct binding of Cat8p to the CSRE. A constitutively expressed GAL4-CAT8 fusion gene revealed a carbon source-dependent transcriptional activation of a UAS(GAL)-containing reporter gene. Activation mediated by Cat8p was no longer detectable in a cat1 mutant. Thus, biosynthetic control of CAT8 as well as transcriptional activation by Cat8p requires a functional Cat1p protein kinase. A model proposing CAT8 as a specific activator of a transcription factor(s) binding to the CSRE is discussed.
The evaluation and continuous improvement of the quality of teaching and learning in higher education is an issue of sustained concern. While most universities are implementing systems of quality assurance, there is substantial variation in the principles underlying these systems. La Trobe University has developed and implemented a university‐wide system of quality assurance that ensures that each subject is systematically reviewed and enhanced by those teaching in the subject. While it incorporates compulsory student evaluation of teaching of each subject the result of this student evaluation is not the focus of the quality assurance system. The focus is on ensuring that those teaching the subject, reflect on and make recommendations for further improvement of the subject. Outlines the quality assurance system, the principles on which it is based and describes and analyses the processes engaged in during its development.
This study suggests that perioperative students are able to demonstrate critical thinking and apply principles of surgical technique across a range of specialty areas without having participated in the particular surgery beforehand.
Resolution to Law Students? Part One: Past and Current Practices and Some Unanswered Questions' (2006) 16 (No 1 & 2) Legal Education Review 125 2In keeping with the practice at La Trobe University, we use the term 'unit' instead of 'subject' or 'course' to designate an individual unit of teaching in which a student enrols and that counts toward a degree in a specifi c 'course', such as Law.
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