Abstract:
:ExPASy (http://www.expasy.org) has worldwide reputation as one of the main bioinformatics resources for proteomics. It has now evolved, becoming an extensible and integrative portal accessing many scientific resources, databases and software tools in different areas of life sciences. Scientists can henceforth access seamlessly a wide range of resources in many different domains, such as proteomics, genomics, phylogeny/evolution, systems biology, population genetics, transcriptomics, etc. The individual resources (databases, web-based and downloadable software tools) are hosted in a 'decentralized' way by different groups of the SIB Swiss Institute of Bioinformatics and partner institutions. Specifically, a single web portal provides a common entry point to a wide range of resources developed and operated by different SIB groups and external institutions. The portal features a search function across 'selected' resources. Additionally, the availability and usage of resources are monitored. The portal is aimed for both expert users and people who are not familiar with a specific domain in life sciences. The new web interface provides, in particular, visual guidance for newcomers to ExPASy.
journal_name
Nucleic Acids Resjournal_title
Nucleic acids researchauthors
Artimo P,Jonnalagedda M,Arnold K,Baratin D,Csardi G,de Castro E,Duvaud S,Flegel V,Fortier A,Gasteiger E,Grosdidier A,Hernandez C,Ioannidis V,Kuznetsov D,Liechti R,Moretti S,Mostaguir K,Redaschi N,Rossier G,Xenariosdoi
10.1093/nar/gks400subject
Has Abstractpub_date
2012-07-01 00:00:00pages
W597-603issue
Web Server issueeissn
0305-1048issn
1362-4962pii
gks400journal_volume
40pub_type
杂志文章abstract::Current knowledge of parameters affecting RNA stability is very restricted in plants. Here we investigated factors which might contribute to the stability of a particular plant messenger RNA. To this end, insertion and deletion mutants were made in two different exons and an intron of the transcribed region of a well ...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/18.10.2917
更新日期:1990-05-25 00:00:00
abstract::Two types of different repetitive DNA sequences called RepMP1 and RepMP2 were identified in the genome of Mycoplasma pneumoniae. The number of these repeated elements, their nucleotide sequence and their localization on a physical map of the M. pneumoniae genome were determined. The results show that RepMP1 appears at...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/16.17.8337
更新日期:1988-09-12 00:00:00
abstract::A major goal of system biology is the characterization of transcription factors and microRNAs (miRNAs) and the transcriptional programs they regulate. We present Allegro, a method for de-novo discovery of cis-regulatory transcriptional programs through joint analysis of genome-wide expression data and promoter or 3' U...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkn1064
更新日期:2009-04-01 00:00:00
abstract::A physical map is presented for the 1200 kb genome of Mycoplasma mycoides subsp. mycoides Y, locating 32 cleavage sites for 8 restriction endonucleases. The large restriction fragments involved were separated and sized by pulsed-field agarose gel electrophoresis. Their locations on the map were determined by probing S...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/16.13.6027
更新日期:1988-07-11 00:00:00
abstract::Guanine-rich sequences are highly abundant in the human genome, especially in regulatory regions. Because guanine-rich sequences have the unique ability to form G-quadruplexes, these structures may play a role in the regulation of gene transcription. In previous studies, we demonstrated that formation of G-quadruplexe...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkr259
更新日期:2011-09-01 00:00:00
abstract::Potential pathways that could account for observed rapid rates of transcription reinitiation were explored. A nuclear extract system was established in which reinitiation rates were observed to be kinetically facilitated and in which the rate was sensitive to TATA box mutation. Kinetic facilitation of functional compl...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/27.3.831
更新日期:1999-02-01 00:00:00
abstract::The distribution patterns of shared short repetitive motifs in the expansion segments of the large subunit rRNA genes of different species show that these segments are coevolving as a set and that in two examined vertebrate species the RNA secondary structures are conserved as a consequence of runs of motifs in one re...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/18.20.5949
更新日期:1990-10-25 00:00:00
abstract::We recently identified a region of preferential replication initiation, oriGNAI3, near the 3' end of the Chinese hamster GNAI3 gene. oriGNAI3 is co-amplified in mutants selected for AMPD2 amplification, a process generating chromosomal rearrangements. In this report we have taken advantage of cell lines with truncated...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/27.7.1600
更新日期:1999-04-01 00:00:00
abstract::Quantitative real-time PCR has revolutionized many aspects of genetic research, biomedical diagnostics and pathogen detection. Nevertheless, the full potential of this technology has yet to be realized, primarily due to the limitations of the threshold-based methodologies that are currently used for quantitative analy...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gnh177
更新日期:2004-12-15 00:00:00
abstract::The use of bacterial artificial chromosomes (BACs) provides a consistent and high targeting efficiency of homologous recombination in embryonic stem (ES) cells, facilitated by long stretches of sequence homology. Here, we introduce a BAC targeting method which employs restriction fragment length polymorphisms (RFLPs) ...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkr550
更新日期:2011-10-01 00:00:00
abstract::Systems biologists aim to decipher the structure and dynamics of signaling and regulatory networks underpinning cellular responses; synthetic biologists can use this insight to alter existing networks or engineer de novo ones. Both tasks will benefit from an understanding of which structural and dynamic features of ne...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkv595
更新日期:2015-10-30 00:00:00
abstract::We describe here a novel method for integrating gene and miRNA expression profiles in cancer using feed-forward loops (FFLs) consisting of transcription factors (TFs), miRNAs and their common target genes. The dChip-GemiNI (Gene and miRNA Network-based Integration) method statistically ranks computationally predicted ...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gks395
更新日期:2012-09-01 00:00:00
abstract::The DECIPHER database (https://decipher.sanger.ac.uk/) is an accessible online repository of genetic variation with associated phenotypes that facilitates the identification and interpretation of pathogenic genetic variation in patients with rare disorders. Contributing to DECIPHER is an international consortium of >2...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkt937
更新日期:2014-01-01 00:00:00
abstract::Alterations in cancer genomes strongly influence clinical responses to treatment and in many instances are potent biomarkers for response to drugs. The Genomics of Drug Sensitivity in Cancer (GDSC) database (www.cancerRxgene.org) is the largest public resource for information on drug sensitivity in cancer cells and mo...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gks1111
更新日期:2013-01-01 00:00:00
abstract::The PSI/TM-Coffee web server performs multiple sequence alignment (MSA) of proteins by combining homology extension with a consistency based alignment approach. Homology extension is performed with Position Specific Iterative (PSI) BLAST searches against a choice of redundant and non-redundant databases. The main nove...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkw300
更新日期:2016-07-08 00:00:00
abstract::We describe a method for anchoring bacteriophage lambda DNA by one end to gold by Au-biotin-streptavidin-biotin-DNA bonds. DNA anchored to a microfabricated Au line could be aligned and stretched in flow and electric fields. The anchor was shown to resist a force of at least 11 pN, a linkage strong enough to allow DNA...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/22.3.492
更新日期:1994-02-11 00:00:00
abstract::Spectroscopic studies of the complexes of double-stranded (ds) DNA with the polymethylene-amine linked heterodimers thiazole orange-thiazole blue, thiazole orange-ethidium, and fluorescein-ethidium, in each case show efficient energy transfer from donor to acceptor chromophores (Benson, S.C., Singh, P. and Glazer, A.N...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/21.24.5720
更新日期:1993-12-11 00:00:00
abstract::Eucaryotic ribosome biogenesis involves many cis-acting sequences and trans-acting factors, including snoRNAS: We have used directed mutagenesis of rDNA plasmids in yeast to identify critical sequence and structural elements within and flanking the ITS2-proximal stem. This base paired structure, present in the mature ...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/29.10.2106
更新日期:2001-05-15 00:00:00
abstract::A study of the activity of deoxyribonucleotide-substituted analogs of the hammerhead domain of RNA catalysis has led to the design of a 14mer oligomer composed entirely of deoxyribonucleotides that promotes the cleavage of an RNA substrate. Characterization of this reaction with sequence variants and mixed DNA/RNA oli...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/23.20.4092
更新日期:1995-10-25 00:00:00
abstract::Pairing of a given E3 ubiquitin ligase with different E2s allows synthesis of ubiquitin conjugates of different topologies. While this phenomenon contributes to functional diversity, it remains largely unknown how a single E3 ubiquitin ligase recognizes multiple E2s, and whether identical structural requirements deter...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkr655
更新日期:2012-01-01 00:00:00
abstract::Ribosome biogenesis is fundamental for cellular life, but surprisingly little is known about the underlying pathway. In eukaryotes a comprehensive collection of experimentally verified ribosome biogenesis factors (RBFs) exists only for Saccharomyces cerevisiae. Far less is known for other fungi, animals or plants, and...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkt1137
更新日期:2014-02-01 00:00:00
abstract::RegPredict web server is designed to provide comparative genomics tools for reconstruction and analysis of microbial regulons using comparative genomics approach. The server allows the user to rapidly generate reference sets of regulons and regulatory motif profiles in a group of prokaryotic genomes. The new concept o...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkq531
更新日期:2010-07-01 00:00:00
abstract::Stress response mechanisms that modulate the dynamics of tRNA degradation and accumulation from the cytoplasm to the nucleus have been studied in yeast, the rat hepatoma and human cells. In the current study, we investigated tRNA degradation and accumulation in HeLa cells under various forms of stress. We found that i...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkt153
更新日期:2013-04-01 00:00:00
abstract:UNLABELLED:Synonymous codon usage biases are associated with various biological factors, such as gene expression level, gene length, gene translation initiation signal, protein amino acid composition, protein structure, tRNA abundance, mutation frequency and patterns, and GC compositions. Quantification of codon usage ...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkm392
更新日期:2007-07-01 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::The Mouse Genome Database (MGD, http://www.informatics.jax.org) is the international community resource for integrated genetic, genomic and biological data about the laboratory mouse. Data in MGD are obtained through loads from major data providers and experimental consortia, electronic submissions from laboratories a...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkr974
更新日期:2012-01-01 00:00:00
abstract::Autosomal dominant and/or recessive progressive external ophthalmoplegia (ad/arPEO) is associated with mtDNA mutagenesis. It can be caused by mutations in three nuclear genes, encoding the adenine nucleotide translocator 1, the mitochondrial helicase Twinkle or DNA polymerase gamma (POLG). How mutations in these genes...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkh634
更新日期:2004-06-04 00:00:00
abstract::Cleavage of phosphodiester bonds by small ribonuclease mimics within different bulge-loops of RNA was investigated. Bulge-loops of different size (1-7 nt) and sequence composition were formed in a 3' terminal fragment of influenza virus M2 RNA (96 nt) by hybridization of complementary oligodeoxynucleotides. Small bulg...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gki264
更新日期:2005-02-24 00:00:00
abstract::RNA can directly bind to purine-rich DNA via Hoogsteen base pairing, forming a DNA:RNA triple helical structure that anchors the RNA to specific sequences and allows guiding of transcription regulators to distinct genomic loci. To unravel the prevalence of DNA:RNA triplexes in living cells, we have established a fast ...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gky1305
更新日期:2019-03-18 00:00:00
abstract::MLL, the trithorax ortholog, is a well-characterized histone 3 lysine 4 methyltransferase that is crucial for proper regulation of the Hox genes during embryonic development. Chromosomal translocations, disrupting the Mll gene, lead to aggressive leukemia with poor prognosis. However, the functions of MLL in cellular ...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gku458
更新日期:2014-07-01 00:00:00