Abstract
We demonstrate that, when the yeast tRNA(3Leu) gene is stretched so that the distance between the two portions of the intragenic promoter is increased to 365 base pairs, the A and B blocks remain functional. Mutations in the A block, which show a weak phenotype when inserted in the wild type, exert a dramatic effect when inserted into the stretched gene. Experiments with extensively purified transcription factor tau indicate that the tau B-B block interaction is not influenced by A-B distance; only the ability of tau A to interact with A block sequences is affected, possibly because of the additional free-energy cost of forming a large loop of the intervening DNA.
MeSH Terms
Base Sequence
Binding Sites
DNA Mutational Analysis
DNA, Fungal/genetics
DNA-Binding Proteins/physiology
Gene Expression Regulation
Molecular Sequence Data
Promoter Regions, Genetic
RNA, Transfer, Amino Acid-Specific/genetics
RNA, Transfer, Leu/genetics
Saccharomyces cerevisiae/genetics
Transcription Factors/physiology
Transcription, Genetic
Chemicals
DNA, Fungal
DNA-Binding Proteins
RNA, Transfer, Amino Acid-Specific
RNA, Transfer, Leu
Transcription Factors
Authors & Affiliations
6 authors, click to expand affiliations / ORCID
Fabrizio P
Dipartimento di Biologia Cellulare e dello Sviluppo, Università degli Studi La Sapienza, Rome, Italy.
Coppo A
Fruscoloni P
Benedetti P
Di Segni G
Tocchini-Valentini G P
References (25)
25 references, click to expand
-
Effects of tRNATyr point mutations on the binding of yeast RNA polymerase III transcription factor C.
J Biol Chem. 1986 Apr 25;261(12):5275-82
PMID: 3633923
-
A split binding site for transcription factor tau on the tRNA3Glu gene.
EMBO J. 1985 Feb;4(2):491-500
PMID: 2862029
-
Selective proteolysis defines two DNA binding domains in yeast transcription factor tau.
Nature. 1986 Sep 11-17;323(6084):176-8
PMID: 3528868
-
Gene size differentially affects the binding of yeast transcription factor tau to two intragenic regions.
Proc Natl Acad Sci U S A. 1987 Dec;84(24):8768-72
PMID: 2827154
-
DNAse footprinting: a simple method for the detection of protein-DNA binding specificity.
Nucleic Acids Res. 1978 Sep;5(9):3157-70
PMID: 212715
-
A nuclear extract of Xenopus laevis oocytes that accurately transcribes 5S RNA genes.
Cell. 1978 Nov;15(3):1077-86
PMID: 569551
-
Transcription and processing of a yeast tRNA gene containing a modified intervening sequence.
Proc Natl Acad Sci U S A. 1980 May;77(5):2564-8
PMID: 6994101
-
Two types of somatic recombination are necessary for the generation of complete immunoglobulin heavy-chain genes.
Nature. 1980 Aug 14;286(5774):676-83
PMID: 6774258
-
Mutations at the yeast SUP4 tRNATyr locus: DNA sequence changes in mutants lacking suppressor activity.
Cell. 1980 Jul;20(3):701-9
PMID: 6998562
-
Oligonucleotide directed mutagenesis of the human beta-globin gene: a general method for producing specific point mutations in cloned DNA.
Nucleic Acids Res. 1981 Aug 11;9(15):3647-56
PMID: 7279669
-
Deletion of the 3' half of the yeast tRNA-Leu3 gene does not abolish promotor function in vitro.
Cell. 1981 Dec;27(2 Pt 1):371-9
PMID: 6277504
-
Specific transcription of homologous class III genes in yeast-soluble cell-free extracts.
J Biol Chem. 1982 Jul 25;257(14):8432-41
PMID: 7045122
-
Specific interactions of Saccharomyces cerevisiae proteins with a promoter region of eukaryotic tRNA genes.
Proc Natl Acad Sci U S A. 1982 Oct;79(20):6191-5
PMID: 6755466
-
Mutation in the a block of the yeast tRNAleu3 gene that allows transcription but abolishes splicing and 5'-end maturation.
Cell. 1983 Jan;32(1):67-76
PMID: 6337723
-
An in vitro RNA polymerase III system from S. cerevisiae: effects of deletions and point mutations upon SUP4 gene transcription.
Nucleic Acids Res. 1982 Dec 20;10(24):8127-43
PMID: 6298710
-
Common and interchangeable elements in the promoters of genes transcribed by RNA polymerase iii.
Cell. 1983 Mar;32(3):725-33
PMID: 6299574
-
Role of RNA structure in splicing: excision of the intervening sequence in yeast tRNA3leu is dependent on the formation of a D stem.
Cell. 1983 Nov;35(1):109-15
PMID: 6194896
-
tRNA gene transcription in yeast: effects of specified base substitutions in the intragenic promoter.
Cell. 1983 Nov;35(1):117-25
PMID: 6226365
-
Isolation of a class C transcription factor which forms a stable complex with tRNA genes.
EMBO J. 1984 Feb;3(2):343-50
PMID: 6370678
-
Differential binding of a S. cerevisiae RNA polymerase III transcription factor to two promoter segments of a tRNA gene.
EMBO J. 1984 Apr;3(4):847-53
PMID: 6233142
-
Compilation of sequences of tRNA genes.
Nucleic Acids Res. 1984;12 Suppl:r59-131
PMID: 6728687
-
Effects of temperature and single-stranded DNA on the interaction of an RNA polymerase III transcription factor with a tRNA gene.
Cell. 1985 Feb;40(2):311-7
PMID: 3967295
-
Structural features of yeast tRNA genes which affect transcription factor binding.
EMBO J. 1984 Dec 1;3(12):2793-800
PMID: 6396080
-
A large region controls tRNA gene transcription.
J Mol Biol. 1985 May 25;183(2):153-63
PMID: 3847510
-
Gene regulation by proteins acting nearby and at a distance.
Nature. 1986 Aug 21-27;322(6081):697-701
PMID: 3018583