Glucose repression on RIM1, a gene encoding a mitochondrial single-stranded DNA-binding protein, in Saccharomyces cerevisiae: a possible regulation at pre-mRNA splicing.
The mitochondrial single-stranded DNA-binding protein (SSB) encoded by anuclear gene, RIM1, is a homolog of Escherichia coli SSB. The addition of glucose decreased the amount of RIM1-mRNA in cells growing in a glycerol medium, but increased the amount of the immature RIM1-mRNA. The changes in the amounts of both mature and immature RIM1-mRNAs were dependent on SRN1/REG1/HEX2, a gene relating to pre-mRNA-splicing and glucose repression. These observations suggest that the expression of the mitochondrial SSB is regulated, at least in part, by pre-mRNA splicing under the control of glucose repression.
Li
Z
Z
Cellular & Molecular Biology Laboratory, The Institute of Physical and Chemical Research (RIKEN), Wako-shi, Saitama 351-0198, Japan.
Ling
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F
Shibata
T
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D003470:Culture Media / Q000494:pharmacology; D004277:DNA, Single-Stranded / Q000235:genetics / Q000378:metabolism; D004268:DNA-Binding Proteins / Q000235:genetics*; D005656:Fungal Proteins / Q000235:genetics*; D015966:Gene Expression Regulation, Fungal / Q000187:drug effects; D005800:Genes, Fungal / Q000235:genetics*; D005947:Glucose / Q000494:pharmacology*; D008928:Mitochondria / Q000235:genetics / Q000378:metabolism; D009154:Mutation; D010749:Phosphoprotein Phosphatases; D054645:Protein Phosphatase 1; D012322:RNA Precursors / Q000187:drug effects / Q000235:genetics / Q000378:metabolism; D012326:RNA Splicing; D012333:RNA, Messenger / Q000187:drug effects / Q000235:genetics / Q000378:metabolism; D012097:Repressor Proteins; D020133:Reverse Transcriptase Polymerase Chain Reaction; D012441:Saccharomyces cerevisiae / Q000187:drug effects* / Q000235:genetics; D029701:Saccharomyces cerevisiae Proteins
D003470:Culture Media; D004277:DNA, Single-Stranded; D004268:DNA-Binding Proteins; D005656:Fungal Proteins; C489601:RIM101 protein, S cerevisiae; D012322:RNA Precursors; D012333:RNA, Messenger; D012097:Repressor Proteins; D029701:Saccharomyces cerevisiae Proteins; D010749:Phosphoprotein Phosphatases; D054645:Protein Phosphatase 1; C070829:REG1 protein, S cerevisiae; D005947:Glucose