Abstract:
:The deoxyoctanucleotide 5'd (AAGGAGGT) which is complementary to the 3' terminus of 16S RNA has been used as a probe to measure the potential of this rRNA region to engage in intermolecular basepairing. The site specific binding of the octanucleotide is shown by labeling 16S RNA in situ at its 3' end with [32P]pCp and T4 RNA ligase (EC 6.5.1.3.). The label can be released as pA[32P]pCp by the simultaneous action of RNAse H (EC 3.1.4.34) and 5'd(AAGGAGGT). WE show that (1) 30S subunits prepared according to standard procedures, bind less than one copy of 5'd(AAGGAGGT); (2) isolated 16S RNA and 30S subunits inactivated by transcient exposure to 0.5 mM Mg2+ do not bind the octanucleotide; (3) binding to inactive subunits can be restored by a brief heat treatment; (4) 30S subunits lacking protein S21 do not bind 5'd(AAGGAGGT) even when submitted to heat treatment; (5) addition of protein S21 to subunits lacking S21 restores octamer binding; (6) the apparent exposure of the 16S RNA 3' terminus brought about by protein S21 is accompanied by the potential of the subunits to accept MS2 RNA as messenger; (7) the presence or absence of S1 on 30S subunits has no effect on their octanucleotide binding property.
journal_name
Nucleic Acids Resjournal_title
Nucleic acids researchauthors
Backendorf C,Ravensbergen CJ,Van der Plas J,van Boom JH,Veeneman G,Van Duin Jdoi
10.1093/nar/9.6.1425subject
Has Abstractpub_date
1981-03-25 00:00:00pages
1425-44issue
6eissn
0305-1048issn
1362-4962journal_volume
9pub_type
杂志文章abstract::Peptides of defined length carrying a diazirine photoaffinity label attached either to the alpha-NH2 group of the N-terminal methionine residue, or to the epsilon-NH2 group of an immediately adjacent lysine residue, were prepared in situ on Escherichia coli ribosomes in the presence of a synthetic mRNA analogue. Pepti...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/22.8.1394
更新日期:1994-04-25 00:00:00
abstract::Guanine-rich DNA sequences tend to form four-stranded G-quadruplex structures. Characteristic glycosidic conformational patterns along the G-strands, such as the 5'-syn-anti-syn-anti pattern observed with the Oxytricha nova telomeric G-quadruplexes, have been well documented. However, an explanation for these featured...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkr031
更新日期:2011-05-01 00:00:00
abstract::Many proteins of the SNF2 family, which share a similar DNA-dependent ATPase/putative helicase domain, are involved in global transcriptional control and processing of DNA damage. We report here the partial cloning and characterization of 89B helicase, a gene encoding a new Drosophila melanogaster member of the SNF2 f...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/24.16.3121
更新日期:1996-08-15 00:00:00
abstract::Given the inherent limitations of in silico studies relying solely on DNA sequence analysis, the functional characterization of mammalian promoters and associated cis-regulatory elements requires experimental support, which demands cloning and analysis of putative promoter regions. Focusing on human chromosome 21, we ...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkq402
更新日期:2010-10-01 00:00:00
abstract::Aberrant Notch signaling plays a pivotal role in T-cell acute lymphoblastic leukemia (T-ALL) and chronic lymphocytic leukemia (CLL). Amplitude and duration of the Notch response is controlled by ubiquitin-dependent proteasomal degradation of the Notch1 intracellular domain (NICD1), a hallmark of the leukemogenic proce...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkaa088
更新日期:2020-04-17 00:00:00
abstract::Laser microirradiation is a powerful tool for real-time single-cell analysis of the DNA damage response (DDR). It is often found, however, that factor recruitment or modification profiles vary depending on the laser system employed. This is likely due to an incomplete understanding of how laser conditions/dosages affe...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkv976
更新日期:2016-02-18 00:00:00
abstract::The tissue-specific expression of the Drosophila beta 2 tubulin gene ( B2t ) is accomplished by the action of a 14-bp activator element (beta2UE1) in combination with certain regulatory elements of the TATA-less, Inr-containing B2t core promoter. We performed an in vivo analysis of the Inr element function in the B2t ...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/28.6.1439
更新日期:2000-03-15 00:00:00
abstract::Saccharomyces cerevisiae chl1 mutants have a significant increase in the rate of chromosome missegregation. CHL1 encodes a 99 kDa predicted protein with an ATP binding site consensus, a putative helix-turn-helix DNA binding motif, and homology to helicases. Using site-directed mutagenesis, I show that mutations that a...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/28.16.3056
更新日期:2000-08-15 00:00:00
abstract::A peculiar phenomenon is observed in several adenovirus type 2 or 5 (Ad2 or Ad5) transformed cell lines: the right hand and left hand terminal regions of the viral genome present in the viral DNA insertions of these cell lines are found to be linked together. A large part of the viral DNA insertion present in the Ad5 ...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/10.7.2189
更新日期:1982-04-10 00:00:00
abstract::We have isolated from a single human liver cDNA library two clones which are highly homologous (78% over the coding region) to the major phenobarbital-inducible P450 from rat (P450IIB1). This is the first direct demonstration of the presence of the P450IIB gene subfamily in humans. This subfamily is much less extensiv...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/16.13.5783
更新日期:1988-07-11 00:00:00
abstract::DNA glycosylases from the Fpg/Nei structural superfamily are base excision repair enzymes involved in the removal of a wide variety of mutagen and potentially lethal oxidized purines and pyrimidines. Although involved in genome stability, the recent discovery of synthetic lethal relationships between DNA glycosylases ...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gku613
更新日期:2014-01-01 00:00:00
abstract::Ribosome biogenesis is a key process for maintaining protein synthetic capacity in dividing or growing cells, and requires coordinated production of ribosomal proteins and ribosomal RNA (rRNA), including the processing of the latter. Signalling through mammalian target of rapamycin complex 1 (mTORC1) activates all the...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gku130
更新日期:2014-04-01 00:00:00
abstract::Histone H2B O-GlcNAcylation is an important post-translational modification of chromatin during gene transcription. However, how this epigenetic modification is regulated remains unclear. Here we found that the energy-sensing adenosine-monophosphate-activated protein kinase (AMPK) could suppress histone H2B O-GlcNAcyl...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gku236
更新日期:2014-05-01 00:00:00
abstract::A recently reported cDNA clone coding for human promyelocytic L apoferritin, shows some differences with a liver L apoferritin cDNA. We have investigated if these differences are due to the expression of different genes or to an alternative transcription of an unique gene. In this paper we report data suggesting that ...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/14.7.2863
更新日期:1986-04-11 00:00:00
abstract::The annotation of protein function has become a crucial problem with the advent of sequence and structural genomics initiatives. A large body of evidence suggests that protein structural information is frequently encoded in local sequences, and that folds are mainly made up of a number of simple local units of super-s...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkh002
更新日期:2004-01-01 00:00:00
abstract::Cdc13 is an essential protein from Saccharomyces cerevisiae that caps telomeres by protecting the C-rich telomeric DNA strand from degradation and facilitates telomeric DNA replication by telomerase. In vitro, Cdc13 binds TG-rich single-stranded telomeric DNA with high affinity and specificity. A previously identified...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkf554
更新日期:2002-10-01 00:00:00
abstract::The formation of interstrand cross-links in nucleic acids can have a strong impact on biological function of nucleic acids; therefore, many cross-linking agents have been developed for biological applications. Despite numerous studies, there remains a need for cross-linking agents that exhibit both efficiency and sele...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkt197
更新日期:2013-07-01 00:00:00
abstract::The development of biosensors based on DNA hybridization requires a more precise knowledge of the thermodynamics of the hybridization at a solid interface. In particular, the selectivity of hybridization can be affected by a lot of parameters such as the single-strand (ss)DNA density, the pH, the ionic strength or the...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gng150
更新日期:2003-12-01 00:00:00
abstract::G-quadruplexes are dynamic structures folded in G-rich single-stranded DNA regions. These structures have been recognized as a potential nucleic acid based mechanism for regulating multiple cellular processes such as replication, transcription and genomic maintenance. So far, their transcriptional role in vivo during ...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkw011
更新日期:2016-05-19 00:00:00
abstract::The gene for the small subunit of human calcium-activated neutral protease was isolated and sequenced. It is 11 kb long and comprises 11 exons. No TATA or CAT box was found upstream of the possible transcription initiation sites, but there are three so-called G-C box sequences and one G-C box-like sequence, which are ...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/14.22.8805
更新日期:1986-11-25 00:00:00
abstract::We report here the different ways in which four subunits of the basal transcription/repair factor TFIIH (XPB, XPD, p62 and p44) and the damage recognition XPC repair protein can enter the nucleus. We examined their nuclear localization by transiently expressing the gene products tagged with the enhanced green fluoresc...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/29.7.1574
更新日期:2001-04-01 00:00:00
abstract::We have previously shown that hedamycin, a GC-rich DNA-binding antitumor agent, downregulates survivin transcription (Wu et al. (2005) Molecular mechanism of inhibition of survivin transcription by the GC-rich sequence selective DNA-binding antitumor agent, hedamycin: evidence of survivin downregulation associated wit...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkm149
更新日期:2007-01-01 00:00:00
abstract::The methyltransferase, M.EcoKI, recognizes the DNA sequence 5'-AACNNNNNNGTGC-3' and methylates adenine at the underlined positions. DNA methylation has been shown by crystallography to occur via a base flipping mechanism and is believed to be a general mechanism for all methyltransferases. If no structure is available...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkh531
更新日期:2004-04-23 00:00:00
abstract::Rotaviruses are a major cause of acute, often fatal, gastroenteritis in infants and young children world-wide. Virions contain an 11 segment double-stranded RNA genome. Little is known about the cis-acting sequences and structural elements of the viral RNAs. Using a database of 1621 full-length sequences of mammalian ...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkq663
更新日期:2010-11-01 00:00:00
abstract::A new method for identifying secretory signal sequences and for predicting the site of cleavage between a signal sequence and the mature exported protein is described. The predictive accuracy is estimated to be around 75-80% for both prokaryotic and eukaryotic proteins. ...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/14.11.4683
更新日期:1986-06-11 00:00:00
abstract::Tight cell-cycle regulation of the histone H4-K20 methyltransferase PR-Set7 is essential for the maintenance of genome integrity. In mammals, this mainly involves the interaction of PR-Set7 with the replication factor PCNA, which triggers the degradation of the enzyme by the CRL4CDT2 E3 ubiquitin ligase. PR-Set7 is al...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gky034
更新日期:2018-04-06 00:00:00
abstract::The Xist lncRNA requires Repeat A, a conserved RNA element located in its 5' end, to induce gene silencing during X-chromosome inactivation. Intriguingly, Repeat A is also required for production of Xist. While silencing by Repeat A requires the protein SPEN, how Repeat A promotes Xist production remains unclear. We r...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkaa789
更新日期:2020-10-09 00:00:00
abstract::Next-generation sequencing is excellently suited to evaluate the abundance of mRNAs to study gene expression. Here we compare two alternative technologies, cap analysis of gene expression (CAGE) and serial analysis of gene expression (SAGE), for the same RNA samples. Along with quantifying gene expression levels, CAGE...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkq602
更新日期:2010-09-01 00:00:00
abstract::DrugCentral (http://drugcentral.org) is an open-access online drug compendium. DrugCentral integrates structure, bioactivity, regulatory, pharmacologic actions and indications for active pharmaceutical ingredients approved by FDA and other regulatory agencies. Monitoring of regulatory agencies for new drugs approvals ...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkw993
更新日期:2017-01-04 00:00:00
abstract::We have determined the DNA sequence surrounding the transcription terminator following rpoC, the gene that codes for the beta' subunit of RNA polymerase in E. coli K12. The 2044 bp sequence obtained contains the distal 335 codons of rpoC followed by a 212 bp non-coding region and a second open reading frame (ORFa) of ...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/9.24.6827
更新日期:1981-12-21 00:00:00