Abstract:
:We have isolated a unique fragment of the HLA-DR alpha gene and probed human genomic DNA at low stringency to search for homologous sequences. A minimum of six non-polymorphic cross-hybridizing high molecular weight fragments were found in all DNAs examined. In order to obtain molecular clones of these cross-hybridizing fragments, we constructed lambda and cosmid libraries of human DNA and screened them at low stringency with the HLA-DR alpha gene specific subclone. We have isolated clones corresponding to each of the six fragments and, in this paper, describe those which contain the gene encoding HLA-SB(DP) alpha.
journal_name
Nucleic Acids Resjournal_title
Nucleic acids researchauthors
Lawrance SK,Das HK,Pan J,Weissman SMdoi
10.1093/nar/13.20.7515subject
Has Abstractpub_date
1985-10-25 00:00:00pages
7515-28issue
20eissn
0305-1048issn
1362-4962journal_volume
13pub_type
杂志文章abstract::Transcription factors (TFs) regulate gene expression by binding to short DNA sequence motifs, yet their binding specificities alone cannot explain how certain TFs drive a diversity of biological processes. In order to investigate the factors that control the functions of the pleiotropic TF STAT3, we studied its genome...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gks1300
更新日期:2013-02-01 00:00:00
abstract::Polyadenylation is a co-transcriptional process that modifies mRNA 3'-ends in eukaryotes. In yeast, CF IA and CPF constitute the core 3'-end maturation complex. CF IA comprises Rna14p, Rna15p, Pcf11p and Clp1p. CF IA interacts with the C-terminal domain of RNA Pol II largest subunit via Pcf11p which links pre-mRNA 3'-...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkr800
更新日期:2012-02-01 00:00:00
abstract::Dinucleoside diphosphates of the general type pGpN have been prepared enzymatically using ribonuclease N1. Alkylated uridines or cytidines, which are products of carcinogens acting on nucleic acids, were tested in dinucleoside diphosphates for their ability to stimulate the binding of Ala- or Val-tRNA to ribosomes. O2...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/6.4.1709
更新日期:1979-04-01 00:00:00
abstract::The abundance of Alu RNA is transiently increased by heat shock in human cell lines. This effect is specific to Alu repeats among Pol III transcribed genes, since the abundance of 7SL, 7SK, 5S and U6 RNAs is essentially unaffected by heat shock. The rapid induction of Alu expression precedes the heat shock induction o...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/23.10.1758
更新日期:1995-05-25 00:00:00
abstract::The transcriptional promoter of satellite 2 from the eastern newt, Notophthalmus viridescens, was analyzed by assaying the activity of deleted or mutated satellite 2 clones in Xenopus laevis oocytes. Two elements in the promoter were found to be important for transcription. These elements have sequences that are simil...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/22.22.4697
更新日期:1994-11-11 00:00:00
abstract::We updated the plant transcription factor (TF) database to version 2.0 (PlantTFDB 2.0, http://planttfdb.cbi.pku.edu.cn) which contains 53,319 putative TFs predicted from 49 species. We made detailed annotation including general information, domain feature, gene ontology, expression pattern and ortholog groups, as well...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkq1141
更新日期:2011-01-01 00:00:00
abstract::'Linker scanning' has been used as an efficient method for systematically surveying a segment of DNA for functional elements by mutagenesis. A three-step PCR method was developed to simplify this process. In this method, a set of 'mutation primers' was made with 6 to 8 base substitutions in the center of the primers. ...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/21.16.3745
更新日期:1993-08-11 00:00:00
abstract::We previously reported that O4-alkyl dTTPs could replace, for short times, dTTP in polymer synthesis [Singer et al., PNAS 83, 26-32, 1986]. The reasons for such early termination of synthesis could be either proofreading or the eventual formation of weakly paired primer termini. Utilizing the known 3'----5' exonucleol...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/14.16.6735
更新日期:1986-08-26 00:00:00
abstract::NRPS-PKS is web-based software for analysing large multi-enzymatic, multi-domain megasynthases that are involved in the biosynthesis of pharmaceutically important natural products such as cyclosporin, rifamycin and erythromycin. NRPS-PKS has been developed based on a comprehensive analysis of the sequence and structur...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkh359
更新日期:2004-07-01 00:00:00
abstract::Instability of complex mammalian genomic DNA inserts is commonplace in cosmid libraries constructed in conventional multicopy vectors. To develop a means to construct stable libraries, we have developed a low copy number cosmid vector based on the E. coli F factor replicon (Fosmid). We have tested relative stability o...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/20.5.1083
更新日期:1992-03-11 00:00:00
abstract::RNA exhibits a large diversity of conformations. Three thousand nucleotides of 23S and 5S ribosomal RNA from a structure of the large ribosomal subunit were analyzed in order to classify their conformations. Fourier averaging of the six 3D distributions of torsion angles and analyses of the resulting pseudo electron m...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkh333
更新日期:2004-03-11 00:00:00
abstract::A cDNA clone which expresses a protein that cross-reacts immunologically with the human C1 and C2 hnRNP core proteins has been isolated. The clone was selected by a sensitive immunochemical assay employing an avidin-biotin complex for detection, and identified as a clone for the hnRNP C proteins by a highly sensitive ...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/14.10.4077
更新日期:1986-05-27 00:00:00
abstract::The mutation patterns at Cas9 targeted sites contain unique information regarding the nuclease activity and repair mechanisms in mammalian cells. However, analytical framework for extracting such information are lacking. Here, we present a novel computational platform called Rational InDel Meta-Analysis (RIMA) that en...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gky653
更新日期:2018-09-19 00:00:00
abstract::For efficient DNA cleavage, the Type III restriction endonuclease EcoP15I communicates with two inversely oriented recognition sites in an ATP-dependent process. EcoP15I consists of methylation (Mod) and restriction (Res) subunits forming a multifunctional enzyme complex able to methylate or to cleave DNA. In this stu...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkr1239
更新日期:2012-04-01 00:00:00
abstract::A vector system is presented that allows generation of E. coli co-expression clones by a standardized, robust cloning procedure. The number of co-expressed proteins is not limited. Five 'pQLink' vectors for expression of His-tag and GST-tag fusion proteins as well as untagged proteins and for cloning by restriction en...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkm067
更新日期:2007-01-01 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::Enzymes of intermediary metabolism are often reported to have moonlighting functions as RNA-binding proteins and have regulatory roles beyond their primary activities. Human serine hydroxymethyltransferase (SHMT) is essential for the one-carbon metabolism, which sustains growth and proliferation in normal and tumour c...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkz129
更新日期:2019-05-07 00:00:00
abstract::Repression of cellular reprogramming in germ cells is critical to maintaining cell fate and fertility. When germ cells mis-express somatic genes they can be directly converted into other cell types, resulting in loss of totipotency and reproductive potential. Identifying the molecular mechanisms that coordinate these ...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkaa174
更新日期:2020-05-07 00:00:00
abstract::RNA pseudoknots are functional structure elements with key roles in viral and cellular processes. Prediction of a pseudoknotted minimum free energy structure is an NP-complete problem. Practical algorithms for RNA structure prediction including restricted classes of pseudoknots suffer from high runtime and poor accura...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkq021
更新日期:2010-04-01 00:00:00
abstract::A cDNA (2855 nt) encoding a putative cytotoxic ribonuclease (rapLR1) related to the antitumor protein onconase was cloned from a library derived from the liver of gravid female amphibian Rana pipiens. The cDNA was mainly comprised (83%) of 3' untranslated region (UTR). Secondary structure analysis predicted two unusua...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/28.12.2375
更新日期:2000-06-15 00:00:00
abstract::MatrixDB (http://matrixdb.ibcp.fr) is a freely available database focused on interactions established by extracellular proteins and polysaccharides. Only few databases report protein-polysaccharide interactions and, to the best of our knowledge, there is no other database of extracellular interactions. MatrixDB takes ...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkq830
更新日期:2011-01-01 00:00:00
abstract::The cyanobacteirum Synechocystis sp. strain PCC 6803 possesses nine species of the sigma (sigma)-factor gene for RNA polymerase (RNAP). Here, we identify and characterize the novel-type promoter recognized by a group 3 sigma-factor, SigF. SigF autoregulates its own transcription and recognizes the promoter of pilA1 th...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkn453
更新日期:2008-09-01 00:00:00
abstract::The thymine analog 5-chlorouridine, first reported in the 1950s as anti-tumor agent, is known as an effective mutagen, clastogen and toxicant as well as an effective inducer of sister-chromatid exchange. Recently, the first microorganism with a chemically different genome was reported; the selected Escherichia coli st...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gks1316
更新日期:2013-02-01 00:00:00
abstract::The UCSC Genome Browser (https://genome.ucsc.edu) provides a web interface for exploring annotated genome assemblies. The assemblies and annotation tracks are updated on an ongoing basis-12 assemblies and more than 28 tracks were added in the past year. Two recent additions are a display of CRISPR/Cas9 guide sequences...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkx1020
更新日期:2018-01-04 00:00:00
abstract::OGG1 initiated base excision repair (BER) is the major pathway for repair of oxidative DNA base damage 8-oxoguanine (8-oxoG). Here, we report that RECQL4 DNA helicase, deficient in the cancer-prone and premature aging Rothmund-Thomson syndrome, physically and functionally interacts with OGG1. RECQL4 promotes catalytic...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkaa392
更新日期:2020-07-09 00:00:00
abstract::The gene encoding the DNA methyltransferase M.CviRI from Chlorella virus XZ-6E was cloned and expressed in Escherichia coli. M.CviRI methylates adenine in TGCA sequences. DNA containing the M.CviRI gene was sequenced and a single open reading frame of 1137 bp was identified which could code for a polypeptide of 379 am...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/19.2.307
更新日期:1991-01-25 00:00:00
abstract::Knowledge of subcellular localizations (SCLs) of plant proteins relates to their functions and aids in understanding the regulation of biological processes at the cellular level. We present PlantLoc, a highly accurate and fast webserver for predicting the multi-label SCLs of plant proteins. The PlantLoc server has two...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkt428
更新日期:2013-07-01 00:00:00
abstract::Plant viruses ubiquitously mediate the induction of miR168 trough the activities of viral suppressors of RNA silencing (VSRs) controlling the accumulation of ARGONAUTE1 (AGO1), one of the main components of RNA silencing based host defence system. Here we used a mutant Tombusvirus p19 VSR (p19-3M) disabled in its main...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkt846
更新日期:2014-01-01 00:00:00
abstract::VIDA is a new virus database that organizes open reading frames (ORFs) from partial and complete genomic sequences from animal viruses. Currently VIDA includes all sequences from GenBank for Herpesviridae, Coronaviridae and Arteriviridae. The ORFs are organized into homologous protein families, which are identified on...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/29.1.133
更新日期:2001-01-01 00:00:00
abstract::The DNA damage checkpoint halts cell cycle progression in G2 in response to genotoxic insults. Central to the execution of cell cycle arrest is the checkpoint-induced stabilization of securin-separase complex (yeast Pds1-Esp1). The checkpoint kinases Chk1 and Chk2 (yeast Chk1 and Rad53) are thought to critically contr...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkaa355
更新日期:2020-06-19 00:00:00