Activation of the human PAX6 gene through the exon 1 enhancer by transcription factors SEF and Sp1.

abstract：:Approximately 30% of human tumors characterized to date express DNA polymerase beta (pol beta) variant proteins. Two of the polymerase beta cancer-associated variants are sequence-specific mutators, and one of them binds to DNA but has no polymerase activity. The Leu22Pro (L22P) DNA polymerase beta variant was identif...

journal_title：Nucleic acids research

authors： Dalal S,Chikova A,Jaeger J,Sweasy JB

更新日期：2008-02-01 00:00:00

abstract：:DNA methylation is the best-studied epigenetic modification and describes the conversion of cytosine to 5-methylcytosine. The importance of this phenomenon is that aberrant promoter hypermethylation is a common occurrence in cancer and is frequently associated with gene silencing. Various techniques are currently avai...

journal_title：Nucleic acids research

authors： Brena RM,Auer H,Kornacker K,Hackanson B,Raval A,Byrd JC,Plass C

更新日期：2006-02-07 00:00:00

abstract：:Peptidases, their substrates and inhibitors are of great relevance to biology, medicine and biotechnology. The MEROPS database (http://merops.sanger.ac.uk) aims to fulfil the need for an integrated source of information about these. The database has hierarchical classifications in which homologous sets of peptidases a...

journal_title：Nucleic acids research

authors： Rawlings ND,Barrett AJ,Bateman A

更新日期：2012-01-01 00:00:00

abstract：:Sequence specific DNA methylation sometimes results in the protection of some or all of a restriction endonucleases' cleavage sites. This is usually, but not always, the result of methylation of one or both strands of DNA at the site characteristic of the corresponding "cognate" modification methylase. The known effec...

journal_title：Nucleic acids research

authors： McClelland M

更新日期：1981-11-25 00:00:00

abstract：:The contacts of phosphate groups in mRNAs with ribosomes were studied. Two mRNAs were used: one mRNA contained in the middle two defined codons to construct the pre- and the post-translocational states, the other was a sequence around the initiation site of the natural cro-mRNA. Phosphorothioate nucleotides were rando...

journal_title：Nucleic acids research

authors： Alexeeva EV,Shpanchenko OV,Dontsova OA,Bogdanov AA,Nierhaus KH

更新日期：1996-06-15 00:00:00

abstract：:The eukaryotic mismatch repair protein Msh6 shares five domains in common with other MutS members. However, it also contains several hundred additional residues at its N-terminus. A few of these residues bind to PCNA, but the functions of the other amino acids in the N-terminal region (NTR) are unknown. Here we demons...

journal_title：Nucleic acids research

authors： Clark AB,Deterding L,Tomer KB,Kunkel TA

更新日期：2007-01-01 00:00:00

abstract：:The properties of the interaction of 5-fluorocytosine-containing DNA with the EcoRII methyltransferase were studied. The DNA used was either a polymer synthesized in vitro, or a 20-mer containing one CCA/TGG sequence. The DNA could be methylated by the enzyme. In the process the enzyme formed a tight binding adduct wi...

journal_title：Nucleic acids research

authors： Friedman S,Ansari N

更新日期：1992-06-25 00:00:00

abstract：:By subtractive screening of a library made from mRNA of lipopolysaccharide (LPS)-stimulated mouse B lymphocytes we isolated cDNA-clones encoding the ribosomal protein L7. Human L7 mRNA was cloned from activated T-lymphocytes. Although no specific function of L7 in the translation apparatus is known as yet, it should b...

journal_title：Nucleic acids research

authors： Hemmerich P,von Mikecz A,Neumann F,Sözeri O,Wolff-Vorbeck G,Zoebelein R,Krawinkel U

更新日期：1993-01-25 00:00:00

abstract：:Adaptation to the host cell environment to efficiently take-over the host cell's machinery is crucial in particular for small RNA viruses like picornaviruses that come with only small RNA genomes and replicate exclusively in the cytosol. Their Internal Ribosome Entry Site (IRES) elements are specific RNA structures th...

journal_title：Nucleic acids research

authors： Andreev DE,Hirnet J,Terenin IM,Dmitriev SE,Niepmann M,Shatsky IN

更新日期：2012-07-01 00:00:00

abstract：:Alternative splicing of pre-mRNA generates protein diversity. Dysfunction of splicing machinery and expression of specific transcripts has been linked to cancer progression and drug response. Exon microarray technology enables genome-wide quantification of expression levels of the majority of exons and facilitates the...

journal_title：Nucleic acids research

authors： Chen P,Lepikhova T,Hu Y,Monni O,Hautaniemi S

更新日期：2011-10-01 00:00:00

abstract：:This review presents detailed information about the structure of triplet repeat RNA and addresses the simple sequence repeats of normal and expanded lengths in the context of the physiological and pathogenic roles played in human cells. First, we discuss the occurrence and frequency of various trinucleotide repeats in...

journal_title：Nucleic acids research

authors： Krzyzosiak WJ,Sobczak K,Wojciechowska M,Fiszer A,Mykowska A,Kozlowski P

更新日期：2012-01-01 00:00:00

abstract：:Herpes simplex virus-1 US11 is a RNA-binding protein with a novel RNA-binding domain. US11 has been reported to exhibit sequence- and conformation-specific RNA-binding, but the sequences and conformations important for binding are not known. US11 has also been described as a double-stranded RNA (dsRNA)-binding protein...

journal_title：Nucleic acids research

authors： Bryant KF,Cox JC,Wang H,Hogle JM,Ellington AD,Coen DM

更新日期：2005-10-24 00:00:00

abstract：:Two similar, but not identical, models have been proposed for the amino acid-base pair contacts in the CAP-DNA complex ('Model I,' Weber, I. and Steitz, T., Proc. Natl. Acad. Sci. USA, 81, 3973-3977, 1984; 'Model II,' Ebright, et al., Proc. Natl. Acad. Sci. USA, 81, 7274-7278, 1984). One difference between the two mod...

journal_title：Nucleic acids research

authors： Gunasekera A,Ebright YW,Ebright RH

更新日期：1990-12-11 00:00:00

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...

journal_title：Nucleic acids research

authors： Backendorf C,Ravensbergen CJ,Van der Plas J,van Boom JH,Veeneman G,Van Duin J

更新日期：1981-03-25 00:00:00

abstract：:Various strategies employed in genomic DNA cloning by subtractive hybridization have been examined by computer simulations, with the comparison between the predictions and the published results. The result shows that the efficiency of target sequence enrichment and the sensitivity to experimental conditions depend str...

journal_title：Nucleic acids research

authors： Cho TJ,Park SS

更新日期：1998-03-15 00:00:00

abstract：:A comprehensive listing is made of posttranscriptionally modified nucleosides from RNA reported in the literature through mid-1994. Included are chemical structures, common names, symbols, Chemical Abstracts registry numbers (for ribonucleoside and corresponding base), Chemical Abstracts Index Name, phylogenetic sourc...

journal_title：Nucleic acids research

authors： Limbach PA,Crain PF,McCloskey JA

更新日期：1994-06-25 00:00:00

abstract：:Given that greater than 90% of the human genome is expressed, it is logical to assume that post-transcriptional regulatory mechanisms must be the primary means of controlling the flow of information from mRNA to protein. This report describes a robust approach that includes in silico, in vitro and in cellulo experimen...

journal_title：Nucleic acids research

authors： Beaudoin JD,Perreault JP

更新日期：2010-11-01 00:00:00

abstract：:Tetrahymena thermophila mitochondrial DNA is a linear molecule with two tRNAs, large subunit beta (LSU beta) rRNA (21S rRNA) and LSU alpha rRNA (5.8S-like RNA) encoded near each terminus. The DNA sequence of approximately 550 bp of this region was determined in six species of Tetrahymena. In three species the LSU beta...

journal_title：Nucleic acids research

authors： Morin GB,Cech TR

更新日期：1988-01-11 00:00:00

abstract：:In an RNase III-deficient strain of E. coli 23S pre-rRNA accumulates unprocessed in 50S ribosomes and in polysomes. These ribosomes provide a substrate for the analysis of rRNA maturation in vitro. S1 nuclease protection analysis of the products obtained in in vitro processing reactions demonstrates that 23S rRNA proc...

journal_title：Nucleic acids research

authors： Sirdeshmukh R,Schlessinger D

更新日期：1985-07-25 00:00:00

abstract：:Using total internal reflection fluorescence microscopy, we directly visualize in real-time, the 1D Brownian motion and transcription elongation of T7 RNA polymerase along aligned DNA molecules bound to substrates by molecular combing. We fluorescently label T7 RNA polymerase with antibodies and use flow to convect th...

journal_title：Nucleic acids research

authors： Kim JH,Larson RG

更新日期：2007-01-01 00:00:00

abstract：:The Protein Data Bank in Europe (PDBe; pdbe.org) is actively involved in managing the international archive of biomacromolecular structure data as one of the partners in the Worldwide Protein Data Bank (wwPDB; wwpdb.org). PDBe also develops new tools to make structural data more widely and more easily available to the...

journal_title：Nucleic acids research

authors： Velankar S,Alhroub Y,Alili A,Best C,Boutselakis HC,Caboche S,Conroy MJ,Dana JM,van Ginkel G,Golovin A,Gore SP,Gutmanas A,Haslam P,Hirshberg M,John M,Lagerstedt I,Mir S,Newman LE,Oldfield TJ,Penkett CJ,Pineda-Casti

更新日期：2011-01-01 00:00:00

abstract：:A 200 bp sequence including a stretch of 54 base pairs of alternating guanosine and adenosine nucleotide residues [(dG-dA)27.(dT-dC)27] was cloned in the simian virus 40 (SV40) genome between the KpnI and HpaII sites. This sequence was discovered earlier as part of a region limiting the amplification of sequences adja...

journal_title：Nucleic acids research

authors： Rao BS,Manor H,Martin RG

更新日期：1988-08-25 00:00:00

abstract：:A-tracts are functionally important DNA sequences which induce helix bending and have peculiar structural properties. While A-tract structure has been qualitatively well characterized, their mechanical properties remain controversial. A-tracts appear structurally rigid and resist nucleosome formation, but seem flexibl...

journal_title：Nucleic acids research

authors： Dršata T,Špačková N,Jurečka P,Zgarbová M,Šponer J,Lankaš F

更新日期：2014-06-01 00:00:00

abstract：:No analogous nucleoside triphosphate was found which acts as well as ATP in binding to and supporting catalysis of leucyl-tRNA synthetase from Escherichia coli MRE 600. However, there are numerous nucleotides which are able to replace ATP, but with lower efficiency. The 6-amino group of the adenine ring and the 2'-hyd...

journal_title：Nucleic acids research

authors： Marutzky R,Flossdorf J,Kula MR

更新日期：1976-08-01 00:00:00

abstract：:MicroRNAs (miRNAs) are small non-coding RNAs that mediate gene expression at the post-transcriptional and translational levels by an imperfect binding to target mRNA 3'UTR regions. While the ab-initio computational prediction of miRNA-mRNA interactions still poses significant challenges, it is possible to overcome som...

journal_title：Nucleic acids research

authors： Sales G,Coppe A,Bicciato S,Bortoluzzi S,Romualdi C

更新日期：2010-04-01 00:00:00

abstract：:The sequence requirements for specific and efficient transcription from the 16S/23S rRNA promoter of Sulfolobus shibatae were analysed by point mutations and by cassette mutations using an in vitro transcription system. The examination of the box A-containing distal promoter element (DPE) showed the great importance o...

journal_title：Nucleic acids research

authors： Hain J,Reiter WD,Hüdepohl U,Zillig W

更新日期：1992-10-25 00:00:00

abstract：:Transgenic mice suitable for the in vivo assay of suspected mutagens at the chromosome level have been constructed by stable integration of a lambda phage shuttle vector. The shuttle vector, which contains a beta-galactosidase (beta-gal) target gene, can be rescued from genomic DNA with in vitro packaging extracts. Mu...

journal_title：Nucleic acids research

authors： Kohler SW,Provost GS,Kretz PL,Dycaico MJ,Sorge JA,Short JM

更新日期：1990-05-25 00:00:00

abstract：:Aberrant CpG methylation changes occurring during tumour progression include the loss (hypomethylation) and gain (hypermethylation) of methyl groups. Techniques currently available for examining such changes either require selection of a region, then examination of methylation changes, or utilise methylation-sensitive...

journal_title：Nucleic acids research

authors： Brock GJ,Huang TH,Chen CM,Johnson KJ

更新日期：2001-12-15 00:00:00

abstract：:Riboswitch RNAs fold into complex tertiary structures upon binding to their cognate ligand. Ligand recognition is accomplished by key residues in the binding pocket. In addition, it often crucially depends on the stability of peripheral structural elements. The ligand-bound complex of the guanine-sensing riboswitch fr...

journal_title：Nucleic acids research

authors： Buck J,Wacker A,Warkentin E,Wöhnert J,Wirmer-Bartoschek J,Schwalbe H

更新日期：2011-12-01 00:00:00

abstract：:Human La protein is an essential factor in the biology of both coding and non-coding RNAs. In the nucleus, La binds primarily to 3' oligoU containing RNAs, while in the cytoplasm La interacts with an array of different mRNAs lacking a 3' UUU(OH) trailer. An example of the latter is the binding of La to the IRES domain...

journal_title：Nucleic acids research

authors： Martino L,Pennell S,Kelly G,Bui TT,Kotik-Kogan O,Smerdon SJ,Drake AF,Curry S,Conte MR

更新日期：2012-02-01 00:00:00