Abstract:
:The DINAMelt web server simulates the melting of one or two single-stranded nucleic acids in solution. The goal is to predict not just a melting temperature for a hybridized pair of nucleic acids, but entire equilibrium melting profiles as a function of temperature. The two molecules are not required to be complementary, nor must the two strand concentrations be equal. Competition among different molecular species is automatically taken into account. Calculations consider not only the heterodimer, but also the two possible homodimers, as well as the folding of each single-stranded molecule. For each of these five molecular species, free energies are computed by summing Boltzmann factors over every possible hybridized or folded state. For temperatures within a user-specified range, calculations predict species mole fractions together with the free energy, enthalpy, entropy and heat capacity of the ensemble. Ultraviolet (UV) absorbance at 260 nm is simulated using published extinction coefficients and computed base pair probabilities. All results are available as text files and plots are provided for species concentrations, heat capacity and UV absorbance versus temperature. This server is connected to an active research program and should evolve as new theory and software are developed. The server URL is http://www.bioinfo.rpi.edu/applications/hybrid/.
journal_name
Nucleic Acids Resjournal_title
Nucleic acids researchauthors
Markham NR,Zuker Mdoi
10.1093/nar/gki591keywords:
subject
Has Abstractpub_date
2005-07-01 00:00:00pages
W577-81issue
Web Server issueeissn
0305-1048issn
1362-4962pii
33/suppl_2/W577journal_volume
33pub_type
杂志文章abstract::Riboswitches are important gene regulatory elements frequently encountered in bacterial mRNAs. The recently discovered nadA riboswitch contains two similar, tandemly arrayed aptamer domains, with the first domain possessing high affinity for nicotinamide adenine dinucleotide (NAD+). The second domain which comprises t...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkaa1029
更新日期:2020-12-02 00:00:00
abstract::Plasmid DNA incubated in interphase Xenopus egg extracts is normally assembled into chromatin and then into synthetic nuclei which undergo one round of regulated replication. During a study of restriction endonuclease cut plasmid replication intermediates (RIs) by the Brewer-Fangman 2D gel electrophoresis technique, w...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/28.10.2187
更新日期:2000-05-15 00:00:00
abstract::Post-transcriptional gene regulation is mediated through complex networks of protein-RNA interactions. The targets of only a few RNA binding proteins (RBPs) are known, even in the well-characterized budding yeast. In silico prediction of protein-RNA interactions is therefore useful to guide experiments and to provide ...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkr160
更新日期:2011-08-01 00:00:00
abstract::A novel approach for the amplification of cDNA ends is described. It requires only minimal amounts of material, a simple cDNA synthesis reaction and a single PCR reaction to amplify the desired 5'- or 3'-ends of a certain cDNA of interest. It combines the so called CapFinder approach with solid phase cDNA synthesis, t...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/28.22.e96
更新日期:2000-11-15 00:00:00
abstract::The DNA unwinding element (DUE) is a sequence rich in adenine and thymine residues present within the origin region of both prokaryotic and eukaryotic replicons. Recently, it has been shown that this is the site where bacterial DnaA proteins, the chromosomal replication initiators, form a specific nucleoprotein filame...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gku453
更新日期:2014-07-01 00:00:00
abstract::A sensitive gel retention assay has been utilized to detect proteins from uninfected Hela nuclei which interact with the adenovirus type 2 enhancer. This assay has been employed to monitor fractionation of nuclear extracts. Three enhancer binding factors were resolved by chromatography on DEAE-Sepharose and one of the...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/15.6.2719
更新日期:1987-03-25 00:00:00
abstract::Aminoglycosides antibiotics negate dissociation and recycling of the bacterial ribosome's subunits by binding to Helix 69 (H69) of 23S rRNA. The differential binding of various aminoglycosides to the chemically synthesized terminal domains of the Escherichia coli and human H69 has been characterized using spectroscopy...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkp1253
更新日期:2010-05-01 00:00:00
abstract::Three protein isoforms (74, 54 and 42 kDa) are expressed from repressor gene c in the Streptomyces temperate bacteriophage phiC31. Because expression of the two smaller isoforms, 54 and 42 kDa, is sufficient for superinfection immunity, the interaction between these isoforms was studied. The native 42 kDa repressor (N...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/26.10.2457
更新日期:1998-05-15 00:00:00
abstract::ComplexContact (http://raptorx2.uchicago.edu/ComplexContact/) is a web server for sequence-based interfacial residue-residue contact prediction of a putative protein complex. Interfacial residue-residue contacts are critical for understanding how proteins form complex and interact at residue level. When receiving a pa...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gky420
更新日期:2018-07-02 00:00:00
abstract::The detailed conformational features and dynamics of the naturally occurring deoxyribotrinucleoside diphosphates d-TpTpT and d-TpTpC have been investigated at 20 degrees C and 80 degrees C in aqueous solution by nuclear magnetic resonance spectroscopy. The observed NMR parameters indicate that the conformational prope...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/5.11.4399
更新日期:1978-11-01 00:00:00
abstract::We have previously shown that integration of a polyoma vector containing rodent repetitive elements into rat cellular DNA is non-random (Wallenburg et al. J. Virol. 50: 678-683). Junctions between the polyoma vector and the host DNA occur in the repetitive sequences of the vector about ten times more frequently than w...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/15.19.7849
更新日期:1987-10-12 00:00:00
abstract::We have constructed vectors from bacteriophage lambda and from plasmid pBR322 having a single EcoRI restriction site which is immediately downstream from the lac UV5 promotor. Each vector allows the fusion of a cloned gene to the lac Z gene in a different phase relative to the translation initiation codon of the lac Z...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/5.12.4479
更新日期:1978-12-01 00:00:00
abstract::In this study, we show that silencing of CITED2 using small-hairpin RNA (shCITED2) induced DNA damage and reduction of ERCC1 gene expression in HEK293, HeLa and H1299 cells, even in the absence of cisplatin. In contrast, ectopic expression of ERCC1 significantly reduced intrinsic and induced DNA damage levels, and res...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkv934
更新日期:2015-12-15 00:00:00
abstract::Virulence factor database (VFDB) was set up in 2004 dedicated for providing current knowledge of virulence factors (VFs) from various medical significant bacterial pathogens to facilitate pathogenomic research. Nowadays, complete genome sequences of almost all the major pathogenic microbes have been determined, which ...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkm951
更新日期:2008-01-01 00:00:00
abstract::By transporting one DNA double helix (T-segment) through a double-strand break in another (G-segment), topoisomerase II reduces fractions of DNA catenanes, knots and supercoils to below equilibrium values. How DNA segments are selected to simplify the equilibrium DNA topology is enigmatic, and the biological relevance...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkt1037
更新日期:2014-02-01 00:00:00
abstract::The Escherichia coli cyclic AMP receptor protein (CRP) is a global regulator that controls transcription initiation from more than 100 promoters by binding to a specific DNA sequence within cognate promoters. Many genes in the CRP regulon have been predicted simply based on the presence of DNA-binding sites within gen...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkh908
更新日期:2004-11-01 00:00:00
abstract::We report here on a quantitative technique called COBRA to determine DNA methylation levels at specific gene loci in small amounts of genomic DNA. Restriction enzyme digestion is used to reveal methylation-dependent sequence differences in PCR products of sodium bisulfite-treated DNA as described previously. We show t...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/25.12.2532
更新日期:1997-06-15 00:00:00
abstract::The nucleotide sequence of a 981 bp's HincII-PvuII DNA fragment containing the 3' end of the malEFG operon in E. coli was determined. This sequence displayed a putative Rho-independent transcription termination site localized 87 bp's after the stop codon of malG. When cloned into plasmid pKG1800, the HincII-PvuII frag...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/16.9.4097
更新日期:1988-05-11 00:00:00
abstract::Recent advances in next-generation sequencing technologies and genome assembly algorithms have enabled the accumulation of a huge volume of genome sequences from various species. This has provided new opportunities for large-scale comparative genomics studies. Identifying and utilizing synteny blocks, which are genomi...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkw310
更新日期:2016-07-08 00:00:00
abstract::LTR-IS elements are middle repetitive sequences in the mouse genome with structural features of solitary retroviral LTRs. In order to get some insight in the possible functional role of these sequences the promotor activity of two LTR-IS representatives differing by 105 bp in their U3 region was investigated. Gene fus...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/13.7.2631
更新日期:1985-04-11 00:00:00
abstract::The FALC-Loop web server provides an online interface for protein loop modeling by employing an ab initio loop modeling method called FALC (fragment assembly and analytical loop closure). The server may be used to construct loop regions in homology modeling, to refine unreliable loop regions in experimental structures...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkr352
更新日期:2011-07-01 00:00:00
abstract::Bacterial tyrosine-kinases share no resemblance with their eukaryotic counterparts and they have been unified in a new protein family named BY-kinases. These enzymes have been shown to control several biological functions in the bacterial cells. In recent years biochemical studies, sequence analyses and structure reso...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkr915
更新日期:2012-01-01 00:00:00
abstract::Genomic DNA methylation contributes substantively to transcriptional regulations that underlie mammalian development and cellular differentiation. Much effort has been made to decipher the molecular mechanisms governing the establishment and maintenance of DNA methylation patterns. However, little is known about genom...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkr017
更新日期:2011-05-01 00:00:00
abstract::Molecular Biology Database List (MBDL) includes brief descriptions and pointers to Web sites for the various databases described in this issue as well as other Web sites presenting data sets relevant to molecular biology. This information is compiled into a list (http://www.oup.co.uk/nar/Volume_27/Issue_01/summary/ gk...
journal_title:Nucleic acids research
pub_type:
doi:10.1093/nar/27.1.1
更新日期:1999-01-01 00:00:00
abstract::We have previously described programs for a variety of types of sequence analysis (1-4). These programs have now been integrated into a single package. They are written in the standard C programming language and run on virtually any computer system with a C compiler, such as the IBM/PC and other computers running unde...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/14.1.443
更新日期:1986-01-10 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::Oligonucleotide-mediated multiplex genome engineering is an important tool for bacterial genome editing. The efficient application of this technique requires the inactivation of the endogenous methyl-directed mismatch repair system that in turn leads to a drastically elevated genomic mutation rate and the consequent a...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gku105
更新日期:2014-04-01 00:00:00
abstract::Double-stranded soybean leghemoglobin DNA was synthesized from leghemoglobin mRNA isolated from soybean nodules. The dsDNA was inserted into the Bam H1 site of plasmid pBR322 using the poly-dAT-joiner method. A cloned DNA fragment of one recombinant plasmid was isolated and characterized by restriction endonuclease di...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/6.9.3061
更新日期:1979-07-11 00:00:00
abstract::A mutation in a gene dicA of Escherichia coli leads to temperature-sensitive cell division, by allowing expression of a nearby division inhibition gene dicB (1). We have now established the sequence of the DicA region and identified DicA as a 15.5 KD protein. A second gene dicC transcribed divergently from dicA and co...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/14.17.6821
更新日期:1986-09-11 00:00:00
abstract::Motif3D is a web-based protein structure viewer designed to allow sequence motifs, and in particular those contained in the fingerprints of the PRINTS database, to be visualised on three-dimensional (3D) structures. Additional functionality is provided for the rhodopsin-like G protein-coupled receptors, enabling finge...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkg534
更新日期:2003-07-01 00:00:00