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A non‐conserved sequence in the 5′ region of the CYH2 intron from saccharomyces cerevisiae controls splicing efficiency of the pre‐mRNA
Author(s) -
Swida Ulrike,
Thüroff Eduardo,
Steindert Edith,
Käufer Norbert F.
Publication year - 1988
Publication title -
yeast
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.923
H-Index - 102
eISSN - 1097-0061
pISSN - 0749-503X
DOI - 10.1002/yea.320040306
Subject(s) - intron , biology , rna splicing , genetics , gene , saccharomyces cerevisiae , splice site mutation , sequence (biology) , conserved sequence , polypyrimidine tract , exon , peptide sequence , rna
The CYH2 gene from Saccharomyces cerevisiae containing one 510 bp intron is spliced inefficiently. We have shown previoulsy that a non‐conserved sequence within the intron is responsible for this low splicing efficiency. Using synthetic oligonucleotides comprising the identified region we show in this report that a very short region contains the specificity to act negatively on the splicing efficiency of the CYH2 gene. Furthermore, this sequence influences the splicing efficiency only when it is placed close to the 5′ splice site of the gene. Investigations with chimeric CYH2 /β‐ actin genes show that this sequence acts independent from its natural surroundings. We propose that this sequence might interact with splicing factor(s).