Biomaterial Database

A positive regulatory site and a negative regulatory site control the expression of the Saccharomyces cerevisiae CYC7 gene. 1984

C F Wright, and R S Zitomer

A series of BAL31 deletions were constructed in vitro in the upstream region of the Saccharomyces cerevisiae CYC7 gene, encoding the iso-2-cytochrome c protein. These deletions identified two sites which play a role in governing the expression of this gene. A positive site, the deletion of which led to decreased CYC7 expression, lay ca. 240 base pairs 5' to the translational initiation codon (-240). A negative site, the deletion of which led to greatly increased levels of CYC7 expression, lay at ca. -300 bp. Deletion of both these sites resulted in low wild-type-like expression of the gene. Therefore, these two sites appear to act antagonistically to give the low wild-type levels of CYC7 expression. Within the region defined as containing the positive site, there is a sequence which bears some homology to the upstream activation sites in the regulated gene, CYC1, encoding the iso-1-cytochrome c protein.

UI	MeSH Term	Description	Entries
D010957	Plasmids	Extrachromosomal, usually CIRCULAR DNA molecules that are self-replicating and transferable from one organism to another. They are found in a variety of bacterial, archaeal, fungal, algal, and plant species. They are used in GENETIC ENGINEERING as CLONING VECTORS.	Episomes,Episome,Plasmid
D002872	Chromosome Deletion	Actual loss of portion of a chromosome.	Monosomy, Partial,Partial Monosomy,Deletion, Chromosome,Deletions, Chromosome,Monosomies, Partial,Partial Monosomies
D004262	DNA Restriction Enzymes	Enzymes that are part of the restriction-modification systems. They catalyze the endonucleolytic cleavage of DNA sequences which lack the species-specific methylation pattern in the host cell's DNA. Cleavage yields random or specific double-stranded fragments with terminal 5'-phosphates. The function of restriction enzymes is to destroy any foreign DNA that invades the host cell. Most have been studied in bacterial systems, but a few have been found in eukaryotic organisms. They are also used as tools for the systematic dissection and mapping of chromosomes, in the determination of base sequences of DNAs, and have made it possible to splice and recombine genes from one organism into the genome of another. EC 3.21.1.	Restriction Endonucleases,DNA Restriction Enzyme,Restriction Endonuclease,Endonuclease, Restriction,Endonucleases, Restriction,Enzymes, DNA Restriction,Restriction Enzyme, DNA,Restriction Enzymes, DNA
D005786	Gene Expression Regulation	Any of the processes by which nuclear, cytoplasmic, or intercellular factors influence the differential control (induction or repression) of gene action at the level of transcription or translation.	Gene Action Regulation,Regulation of Gene Expression,Expression Regulation, Gene,Regulation, Gene Action,Regulation, Gene Expression
D001483	Base Sequence	The sequence of PURINES and PYRIMIDINES in nucleic acids and polynucleotides. It is also called nucleotide sequence.	DNA Sequence,Nucleotide Sequence,RNA Sequence,DNA Sequences,Base Sequences,Nucleotide Sequences,RNA Sequences,Sequence, Base,Sequence, DNA,Sequence, Nucleotide,Sequence, RNA,Sequences, Base,Sequences, DNA,Sequences, Nucleotide,Sequences, RNA
D012441	Saccharomyces cerevisiae	A species of the genus SACCHAROMYCES, family Saccharomycetaceae, order Saccharomycetales, known as "baker's" or "brewer's" yeast. The dried form is used as a dietary supplement.	Baker's Yeast,Brewer's Yeast,Candida robusta,S. cerevisiae,Saccharomyces capensis,Saccharomyces italicus,Saccharomyces oviformis,Saccharomyces uvarum var. melibiosus,Yeast, Baker's,Yeast, Brewer's,Baker Yeast,S cerevisiae,Baker's Yeasts,Yeast, Baker
D015245	Deoxyribonuclease BamHI	One of the Type II site-specific deoxyribonucleases (EC 3.1.21.4). It recognizes and cleaves the sequence G/GATCC at the slash. BamHI is from Bacillus amyloliquefaciens N. Numerous isoschizomers have been identified. EC 3.1.21.-.	DNA Restriction Enzyme BamHI,Deoxyribonuclease BstI,Endonuclease BamHI,AacI Endonuclease,AaeI Endonuclease,AccEBI Endonuclease,AliI Endonuclease,ApaCI Endonuclease,BamFI Endonuclease,BamHI Deoxyribonuclease,BamHI Endonuclease,BamI Endonuclease,BamKI Endonuclease,BamNI Endonuclease,BnaI Endonuclease,BstI Deoxyribonuclease,BstI Endonuclease,DdsI Endonuclease,Endonuclease AacI,Endonuclease AaeI,Endonuclease AccEBI,Endonuclease Ali12257I,Endonuclease Ali12258I,Endonuclease AliI,Endonuclease BamFI,Endonuclease BamKI,Endonuclease BamNI,Endonuclease BnaI,Endonuclease Bst1503,Endonuclease BstI,Endonuclease DdsI,Endonuclease GdoI,Endonuclease GinI,Endonuclease GoxI,Endonuclease MleI,Endonuclease NasBI,Endonuclease NspSAIV,Endonuclease RhsI,Endonuclease SolI,GdoI Endonuclease,GinI Endonuclease,GoxI Endonuclease,MleI Endonuclease,NasBI Endonuclease,NspSAIV Endonuclease,RhsI Endonuclease,SolI Endonuclease,Endonuclease, ApaCI,Endonuclease, SolI,SolI, Endonuclease
D015252	Deoxyribonucleases, Type II Site-Specific	Enzyme systems containing a single subunit and requiring only magnesium for endonucleolytic activity. The corresponding modification methylases are separate enzymes. The systems recognize specific short DNA sequences and cleave either within, or at a short specific distance from, the recognition sequence to give specific double-stranded fragments with terminal 5'-phosphates. Enzymes from different microorganisms with the same specificity are called isoschizomers. EC 3.1.21.4.	DNA Restriction Enzymes, Type II,DNase, Site-Specific, Type II,Restriction Endonucleases, Type II,Type II Restriction Enzymes,DNase, Site Specific, Type II,Deoxyribonucleases, Type II, Site Specific,Deoxyribonucleases, Type II, Site-Specific,Site-Specific DNase, Type II,Type II Site Specific DNase,Type II Site Specific Deoxyribonucleases,Type II Site-Specific DNase,Type II Site-Specific Deoxyribonucleases,Deoxyribonucleases, Type II Site Specific,Site Specific DNase, Type II