Abstract:
:The reactivities of the two cysteine thiol groups of calf thymus F3 histone were investigated using 5,5'-dithiobis-[2- nitrobenzoic acid], (DTNB). In isolated histone, both thiol groups were available for reaction. However, analysis of reaction profiles of native deoxyribonucleohistone, (DNH), in various solvent conditions, together with gel electrophoresis studies of DNH modified with DTNB, showed that only one of the thiol groups is normally modified by the reagent. If NaCl is present (above 1.OM) the other thiol group can also be modified. The reactivities of both groups were largely independent of the degree of DNH supercoiling and of the binding of F3 to the DNA.
journal_name
Nucleic Acids Resjournal_title
Nucleic acids researchauthors
Hyde JE,Walker IOdoi
10.1093/nar/1.2.203subject
Has Abstractpub_date
1974-02-01 00:00:00pages
203-15issue
2eissn
0305-1048issn
1362-4962journal_volume
1pub_type
杂志文章abstract::Strand Displacement Amplification (SDA) is an isothermal, in vitro method of amplifying a DNA target sequence prior to detection [Walker et al (1992) Nucleic Acids Res., 20, 1691-1693]. Here we describe a multiplex form of SDA that allows two target sequences and an internal amplification control to be co-amplified by...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/22.13.2670
更新日期:1994-07-11 00:00:00
abstract::The chemical reactivity of matched T and C bases to osmium tetroxide and hydroxylamine near mismatched and unmatched bases in a heteroduplex between two strands of DNA with multiple differences was examined. Data was available for matched bases one or two positions away from 24 mismatches. Reactive bases were found ne...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/17.11.4223
更新日期:1989-06-12 00:00:00
abstract::Triple helix-forming oligonucleotides covalently linked to topoisomerase I inhibitors, in particular the antitumor agent camptothecin, trigger topoisomerase I-mediated DNA cleavage selectively in the proximity of the binding site of the oligonucleotide vector. In the present study, we have performed a systematic analy...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkg457
更新日期:2003-07-15 00:00:00
abstract::A set of programs was developed for searching nucleic acid and protein sequence data bases for sequences similar to a given sequence. The programs, written in FORTRAN 77, were optimized for vector processing on a Hitachi S810-20 supercomputer. A search of a 500-residue protein sequence against the entire PIR data base...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/14.1.57
更新日期:1986-01-10 00:00:00
abstract::Recently, due to the dual roles of DNA and enzyme, DNAzyme has been widely used in the field of DNA circuit, which has a wide range of applications in bio-engineered system, information processing and biocomputing. In fact, the activity of DNAzymes was regulated by subunits assembly, pH control and metal ions triggers...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gky1245
更新日期:2019-02-20 00:00:00
abstract::A protein-DNA complex has less gel electrophoretic mobility than the free DNA fragment. One parameter for the degree of retardation of a linear DNA fragment in a protein-DNA complex is the molecular weight of the bound protein(s). The quotient of the migration distances of free DNA (m) and protein-DNA complex (m') is ...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/16.12.5241
更新日期:1988-06-24 00:00:00
abstract::To determine whether methylation changes in specific DNA sequences of the albumin and AFP genes are implicated in the modulation of transcriptional activity during rat liver development and neoplasia we have analysed the methylation pattern of C-C-G-G sequences within these genes in DNA isolated from fetal and adult h...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/11.13.4335
更新日期:1983-07-11 00:00:00
abstract::The EcoCyc database (http://EcoCyc.org/) is a comprehensive source of information on the biology of the prototypical model organism Escherichia coli K12. The mission for EcoCyc is to contain both computable descriptions of, and detailed comments describing, all genes, proteins, pathways and molecular interactions in E...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gki108
更新日期:2005-01-01 00:00:00
abstract::In order to construct fish specific expression vectors for studies on gene regulation in vitro and in vivo a variety of heterologous enhancers and promoters from mammals and from viruses of higher vertebrate cells were tested for expression of the bacterial chloramphenicol acetyl transferase reporter gene in three tel...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/18.11.3299
更新日期:1990-06-11 00:00:00
abstract::Bacterial genomes encode a plethora of small RNAs (sRNAs), which are heterogeneous in size, structure and function. Most sRNAs act as post-transcriptional regulators by means of specific base pairing interactions with the 5'-untranslated region of mRNA transcripts, thereby modifying the stability of the target transcr...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkr467
更新日期:2011-07-01 00:00:00
abstract::Inability of T7 RNA polymerase to processively transcribe higher eukaryotic chromatin is interpreted as a correlate of its reported inhibition by nucleosomes on reconstituted templates in vitro . We used chromosomally integrated reporter cassettes to examine features of T7 transcription in a lower eukaryotic system. L...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/26.20.4626
更新日期:1998-10-15 00:00:00
abstract::We recently reported that the antitumor triazoloacridone, compound C-1305, is a topoisomerase II poison with unusual properties. In this study we characterize the DNA interactions of C-1305 in vitro, in comparison with other topoisomerase II inhibitors. Our results show that C-1305 binds to DNA by intercalation and po...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gki904
更新日期:2005-10-27 00:00:00
abstract::Cells continuously monitor protein synthesis to prevent accumulation of aberrant polypeptides. Insufficient capacity of cellular degradative systems, chaperone shortage or high levels of mistranslation by ribosomes can result in proteotoxic stress and endanger proteostasis. One of the least explored reasons for mistra...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkaa068
更新日期:2020-04-17 00:00:00
abstract::Model single base extension (SBE) genotyping reactions with individual deoxy-, dideoxy- and acyclonucleoside triphosphates are monitored by MALDI-TOF mass spectrometry. Three non-proofreading DNA polymerases display remarkably high misincorporation (up to 64% of correct incorporation) when extending primers with singl...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gng007
更新日期:2003-02-01 00:00:00
abstract::By screening a rabbit reticulocyte library, an alternative 15-LOX transcript of 3.6 kb (15-LOX mRNA2) was detected containing a 1019 nt longer 3'-untranslated region (UTR2) than the main 2.6 kb mRNA (15-LOX mRNA1). In anaemic animals, northern blotting showed that 15-LOX mRNA2 was predominantly expressed in non-erythr...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/27.8.1828
更新日期:1999-04-15 00:00:00
abstract::A hallmark of defense mechanisms based on clustered regularly interspaced short palindromic repeats (CRISPR) and associated sequences (Cas) are the crRNAs that guide these complexes in the destruction of invading DNA or RNA. Three separate CRISPR-Cas systems exist in the cyanobacterium Synechocystis sp. PCC 6803. Base...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkw786
更新日期:2017-01-25 00:00:00
abstract::We have used in vitro transcription in isolated pea nuclei to determine whether the expression of genes for the seed storage proteins legumin and vicilin is regulated transcriptionally or post-transcriptionally in response to changing sulfur status in the developing seed. During the first 48 h of recovery from S defic...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/13.3.999
更新日期:1985-02-11 00:00:00
abstract::The DNA double helix undergoes an 'overstretching' transition in a narrow force range near 65 pN. Despite numerous studies the basic question of whether the strands are separated or not remains controversial. Here we show that overstretching in fact involves two distinct types of double-helix reorganization: slow hyst...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkq309
更新日期:2010-09-01 00:00:00
abstract::Non-homologous end-joining (NHEJ) of DNA double-strand breaks (DSBs) is mediated by two protein complexes comprising Ku80/Ku70/DNA-PKcs/Artemis and XRCC4/LigaseIV/XLF. Loss of Ku or XRCC4/LigaseIV function compromises the rejoining of radiation-induced DSBs and leads to defective V(D)J recombination. In this study, we...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkn094
更新日期:2008-05-01 00:00:00
abstract::Type II restriction endonucleases Bam HI and Eco RI were covalently coupled to Sepharose. These insolubilized enzymes generated fragment patterns for several viral DNAs identical to those produced by the respective free enzymes. Conditions for optimal activity were similar for both bound and unbound forms of the enzym...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/5.3.679
更新日期:1978-03-01 00:00:00
abstract::A very mild and efficient procedure has been developed for the preparation of C-5 substituted deoxyuridines. The substituent carries a masked primary aliphatic amino group. These compounds are readily converted into their phosphoramidites and can be used to prepare oligonucleotides carrying one or more aliphatic amino...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/15.12.4857
更新日期:1987-06-25 00:00:00
abstract::Apicoplast, an essential organelle of human malaria parasite Plasmodium falciparum contains a ∼35 kb circular genome and is a possible target for therapy. Proteins required for the replication and maintenance of the apicoplast DNA are not clearly known. Here we report the presence of single-stranded DNA binding protei...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkq565
更新日期:2010-11-01 00:00:00
abstract::The Gene Expression Database (GXD) is a community resource of gene expression information for the laboratory mouse. By combining the different types of expression data, GXD aims to provide increasingly complete information about the expression profiles of genes in different mouse strains and mutants, thus enabling val...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/29.1.98
更新日期:2001-01-01 00:00:00
abstract::Numerous eukaryotic genes are alternatively spliced. Recently, deep transcriptome sequencing has skyrocketed proportion of alternatively spliced genes; over 95% human multi-exon genes are alternatively spliced. One fundamental question is: are all these alternative splicing (AS) events functional? To look into this is...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gku1253
更新日期:2014-12-16 00:00:00
abstract::Specific targeting of protein–nucleic acid interactions is an area of current interest, for example, in the regulation of gene-expression. Most transcription factor proteins bind in the DNA major groove; however, we are interested in an approach using small molecules to target the minor groove to control expression by...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkw1232
更新日期:2017-02-17 00:00:00
abstract::CeR-2 RNA is one of the newly identified Caenorhabditis elegans noncoding RNAs (ncRNAs). The characterization of CeR-2 by RNomic studies has failed to classify it into any known ncRNA family. In this study, we examined the spatiotemporal expression patterns of CeR-2 to gain insight into its function. CeR-2 is expresse...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkq335
更新日期:2010-09-01 00:00:00
abstract::This paper presents TurboFold II, an extension of the TurboFold algorithm for predicting secondary structures for multiple RNA homologs. TurboFold II augments the structure prediction capabilities of TurboFold by additionally providing multiple sequence alignments. Probabilities for alignment of nucleotide positions b...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkx815
更新日期:2017-11-16 00:00:00
abstract::Microbial enzymes have many known applications as biocatalysts in biotechnology, agriculture, medical and other industries. However, only a few enzymes are currently employed for such commercial applications. In this scenario, the current onslaught of metagenomic data provides a new unexplored treasure trove of genomi...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkp1001
更新日期:2010-01-01 00:00:00
abstract::Over millions of years the structure and complexity of the transcriptional regulatory network (TRN) in bacteria has changed, reorganized and enabled them to adapt to almost every environmental niche on earth. In order to understand the plasticity of TRNs in bacteria, we studied the conservation of currently known TRNs...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkl423
更新日期:2006-07-13 00:00:00
abstract::Short DNA sequence motifs have been identified in viral and cellular enhancers which represent the binding sites for a variety of trans- acting factors. One such HeLa cell factor, EBP1, has been purified and shown to bind to sequences in the SV40 enhancer. The PRDII element in the human beta-interferon gene regulatory...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/17.2.499
更新日期:1989-01-25 00:00:00