Abstract:
:The role of the cyclic-AMP (cAMP) responsive element (CRE) in eukaryotic gene transcription was investigated in several cell lines transfected by constructs containing the chloramphenicol acetyltransferase (CAT) gene linked to the three different promoters, simian virus (SV) 40, human c-Ha-ras-1, or chicken beta-actin promoter, with or without CRE. CRE had inducible enhancer activity only when it was linked to the SV40 promoter and in a few cell lines such as PC12. CRE functioned as a constitutive enhancer with the human c-Ha-ras-1 promoter in all cell lines examined. CRE also had constitutive enhancer activity when it was linked to the chicken beta-actin promoter, but this activity was observed only in KB, HeLa, and A431 cells. The different types of enhancer activities of CRE depending on the cell and promoter may be caused by interaction with different trans-acting factors that were demonstrated by gel retardation analyses.
journal_name
Nucleic Acids Resjournal_title
Nucleic acids researchauthors
Kanei-Ishii C,Ishii Sdoi
10.1093/nar/17.4.1521subject
Has Abstractpub_date
1989-02-25 00:00:00pages
1521-36issue
4eissn
0305-1048issn
1362-4962journal_volume
17pub_type
杂志文章abstract::Aspartic acid residues comprising the -D-(aa) n -Y-L-D-D- DNA polymerase active site triad of reverse transcriptase from the Saccharomyces cerevisiae long terminal repeat-retrotransposon Ty3 (Asp151, Asp213 and Asp214) were evaluated via site-directed mutagenesis. An Asp151-->Glu substitution showed a dramatic decreas...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gki150
更新日期:2005-01-12 00:00:00
abstract::The MED1/TRAP220 subunit of the Mediator plays a key role in facilitating ligand-dependent interactions of this multisubunit coactivator complex with nuclear receptors through their ligand binding domains. The isolated MED1/TRAP220 protein previously was shown to interact with glucocorticoid receptor (GR) in a ligand-...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkm661
更新日期:2007-01-01 00:00:00
abstract::A number of novel phosphate triester derivatives of the anti-cancer nucleoside analogue araC have been prepared by a rapid 2-step procedure, not necessitating prior sugar protection. Spectroscopic and lipophilicity data have been collected on these compounds. An in vitro assay indicated inhibition of thymidine incorpo...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/17.18.7195
更新日期:1989-09-25 00:00:00
abstract::MicroRNAs are a class of small non-coding RNAs that serve as important regulators of gene expression at the posttranscriptional level. They are stable in body fluids and pose great potential to serve as biomarkers. Here, we present a highly specific, sensitive and cost-effective system to quantify miRNA expression bas...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkx588
更新日期:2017-09-06 00:00:00
abstract::In order to systematically analyze the effects of nucleoside modification of sugar moieties in DNA polymerase reactions, we synthesized 16 modified templates containing 2',4'-bridged nucleotides and three types of 2',4'-bridged nucleoside-5'-triphospates with different bridging structures. Among the five types of ther...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkn404
更新日期:2008-08-01 00:00:00
abstract::We show that the cAMP receptor protein (Crp) binds to DNA as several different conformers. This situation has precluded discovering a high correlation between any sequence property and binding affinity for proteins that bend DNA. Experimentally quantified affinities of Synechocystis sp. PCC 6803 cAMP receptor protein ...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkr369
更新日期:2011-08-01 00:00:00
abstract::Two DNA hexadecamers containing one central 5'-GC-3' base step have been examined by footprinting methodology in the presence and absence of actinomycin D. The results of these studies, coupled with imino proton NMR measurements indicate that the antitumor drug causes a change in DNA conformation at a distance from th...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/16.23.11125
更新日期:1988-12-09 00:00:00
abstract::Zinc fingers are small protein domains in which zinc plays a structural role contributing to the stability of the domain. Zinc fingers are structurally diverse and are present among proteins that perform a broad range of functions in various cellular processes, such as replication and repair, transcription and transla...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkg161
更新日期:2003-01-15 00:00:00
abstract::Treatment of the ciliated protozoan Tetrahymena thermophila with 8-methoxypsoralen combined with long wavelength ultraviolet irradiation (UVA, lambda approximately 360 nm) resulted in a dose dependent equal inhibition of the synthesis of rRNA, 5.8S, 5S and tRNA. Similar results were obtained with 3-carbethoxy-8-methox...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/15.3.921
更新日期:1987-02-11 00:00:00
abstract::RecBCD enzyme acts in the major pathway of homologous recombination of linear DNA in Escherichia coli. The enzyme unwinds DNA and is an ATP-dependent double-strand and single-strand exonuclease and a single-strand endonuclease; it acts at Chi recombination hotspots (5'-GCTGGTGG-3') to produce a recombinogenic single-s...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/26.9.2125
更新日期:1998-05-01 00:00:00
abstract::The occurrence of DNA tracts of the three binary base combinations: R.Y, K.M and W;S has been mapped in the complete genomes of Haemophilus influenzae and Escherichia coli. A highly significant over-representation of W tracts is observed in both bacteria. The excess of W tracts is particularly striking in the 10% inte...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/27.22.4491
更新日期:1999-11-15 00:00:00
abstract::We have isolated genomic clones from Xenopus borealis representing 3 different types of histone gene cluster. We show that the major type (H1, H2B, H2A, H4, H3), present at about 60-70 copies per haploid genome (1), is tandemly reiterated with a repeat length of 15 kb. In situ hybridization to mitotic chromosomes show...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/16.8.3471
更新日期:1988-04-25 00:00:00
abstract::The promoter region of the mouse CCAAT-Enhancer Binding Protein (C/EBP alpha) gene is capable of directing high levels of expression of reporter constructs in various cell lines, albeit even in cells that do not express their endogenous C/EBP alpha gene. To understand the molecular mechanisms underlying this ubiquitou...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/21.8.1735
更新日期:1993-04-25 00:00:00
abstract::The nucleotide sequences of the 5S rRNAs of the oomycete water molds Saprolegnia ferax and Pythium hydnosporum and of the chytrid water molds Blastocladiella simplex and Phlyctochytrium irregulare were determined by chemical and enzymatic partial degradation of 3' and 5' end-labelled molecules, followed by gel sequenc...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/10.18.5717
更新日期:1982-09-25 00:00:00
abstract::Transcription of RNA from the beta-globin (major) gene in nuclei from induced mouse erythroleukemia cells terminates within the region between 700 to 2000 bases downstream from the poly(A) addition site, but not at particularly favored sites. In addition we present the first analysis of in vivo labeled RNA from a cell...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/12.22.8723
更新日期:1984-11-26 00:00:00
abstract::Use of the polymerase chain reaction (PCR) to amplify variable numbers of tandem repeat (VNTR) loci has become widely used in genetic typing. Unfortunately, preferential amplification of small allelic products relative to large allelic products may result in incorrect or ambiguous typing in a heterozygous sample. The ...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/23.15.3050
更新日期:1995-08-11 00:00:00
abstract::G-quadruplex (G4) DNA structures are linked to key biological processes and human diseases. Small molecules that target specific G4 DNA structures and signal their presence would therefore be of great value as chemical research tools with potential to further advance towards diagnostic and therapeutic developments. Ho...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkz1205
更新日期:2020-02-20 00:00:00
abstract::Late SV40 16S and 19S mRNAs were found to contain an average of three m6A residues per mRNA molecule. The methylated residues of both the viral and cellular mRNAs occur in two sequences; Gpm6ApC and (Ap)nm6ApC, where n = 1-4. More than 60% of the m6A residues in SV40 16S and 19S mRNAs occur in Gpm6ApC even though ther...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/6.8.2879
更新日期:1979-06-25 00:00:00
abstract::Using circular dichroism spectroscopy, UV absorption spectroscopy and polyacrylamide gel electrophoresis, we studied conformational properties of guanine-rich DNA strands of the fragile X chromosome repeats d(GGC)n, d(GCG)n and d(CGG)n, with n = 2, 4, 8 and 16. These strands are generally considered in the literature ...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkh179
更新日期:2004-01-12 00:00:00
abstract::An examination, using reversed-phase chromatography and cyanogen bromide treatment, of tRNATyr, tRNAHis, tRNAAsn, and tRNAAsp from SV40-transformed mouse fibroblasts grown to different cell densities, untransformed cells grown to confluence, and mouse liver indicates that: (1) The tissue cultured mouse fibroblasts exa...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/5.7.2513
更新日期:1978-07-01 00:00:00
abstract::A class of heterogeneous nuclear RNA (hnRNA) molecules contain an internal transcribed poly A sequence of close to 25 uninterrupted AMP residues. HnRNA molecules containing this sequence are separable from those containing the large 3' terminal poly A sequence on the basis of their differential affinity for oligo dT c...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/6.3.1097
更新日期:1979-03-01 00:00:00
abstract::All exchangeable protons in a short DNA helix, d(CG)3 sodium salt, have been studied by proton nuclear magnetic resonance. The cytidine and guanosine amino protons have been assigned for the first time. As a function of temperature the cytidine amino protons and the imino protons behave very similarly, their relaxatio...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/12.21.8269
更新日期:1984-11-12 00:00:00
abstract::Right-handed RNA duplexes of (CG)n sequence undergo salt-induced helicity reversal, forming left-handed RNA double helices (Z-RNA). In contrast to the thoroughly studied Z-DNA, no Z-RNA structure of natural origin is known. Here we report the NMR structure of a half-turn, left-handed RNA helix (CGCGCG)2 determined in ...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkh736
更新日期:2004-08-03 00:00:00
abstract::The Orthologous Matrix (OMA) is a leading resource to relate genes across many species from all of life. In this update paper, we review the recent algorithmic improvements in the OMA pipeline, describe increases in species coverage (particularly in plants and early-branching eukaryotes) and introduce several new feat...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkx1019
更新日期:2018-01-04 00:00:00
abstract::Daunomycin is one of the most important agents used in anticancer chemotherapy. It interacts with DNA through intercalation of its planar chromophore between successive base pairs. The effect of intercalation on structure, dynamics and energetics is the topic of a wealth of scientific studies. In the present study, we...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkh788
更新日期:2004-09-01 00:00:00
abstract::The genomic distribution of the abundant eukaryotic d(GA x TC)(n) DNA microsatellite suggests that it could contribute to DNA recombination. Here, it is shown that this type of microsatellite DNA sequence enhances DNA recombination in SV40 minichromosomes, the rate of homologous DNA recombination increasing by as much...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/28.23.4617
更新日期:2000-12-01 00:00:00
abstract::The transcription factor Sox5 has previously been shown in chicken to be expressed in early neural crest cells and neural crest-derived peripheral glia. Here, we show in mouse that Sox5 expression also continues after neural crest specification in the melanocyte lineage. Despite its continued expression, Sox5 has litt...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkn527
更新日期:2008-10-01 00:00:00
abstract::With the high number of sequences and structures streaming in from genomic projects, there is a need for more powerful and sophisticated annotation tools. Most problematic of the annotation efforts is predicting gene and protein function. Over the past few years there has been considerable progress in automated protei...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkl045
更新日期:2006-07-01 00:00:00
abstract::The integrase (IN) protein of human immunodeficiency virus type 1 (HIV-1) catalyzes site-specific cleavage of 2 bases from the viral long terminal repeat (LTR) sequence yet it binds DNA with little DNA sequence specificity. We have previously demonstrated that the C-terminal half of IN (amino acids 154-288) possesses ...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/21.15.3507
更新日期:1993-07-25 00:00:00
abstract::Tumor formation is partially driven by DNA copy number changes, which are typically measured using array comparative genomic hybridization, SNP arrays and DNA sequencing platforms. Many techniques are available for detecting recurring aberrations across multiple tumor samples, including CMAR, STAC, GISTIC and KC-SMART...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkt155
更新日期:2013-05-01 00:00:00