Abstract:
:Previous work has demonstrated that the yeast SPT3 gene is required for transcription from delta sequences, the long terminal repeats that flank yeast Ty elements. In spt3 null mutants, transcription fails to initiate in delta sequences and instead initiates farther downstream. Null mutations in SPT3 cause other mutant phenotypes, including defects in sporulation and diploid formation. In this paper we report further genetic and physical characterization of the SPT3 gene and protein. By extensive linker insertion mutagenesis, we have delimited the region necessary for SPT3 function. From DNA sequence analysis, SPT3 encodes a protein of 337 amino acids. We have identified this protein with an anti-SPT3 antibody. Finally, we show that overproduction of the SPT3 gene product does not alter the level of Ty transcription.
journal_name
Nucleic Acids Resjournal_title
Nucleic acids researchauthors
Winston F,Minehart PLdoi
10.1093/nar/14.17.6885subject
Has Abstractpub_date
1986-09-11 00:00:00pages
6885-900issue
17eissn
0305-1048issn
1362-4962journal_volume
14pub_type
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journal_title:Nucleic acids research
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