ProtoNet: hierarchical classification of the protein space.

Abstract:

:The ProtoNet site provides an automatic hierarchical clustering of the SWISS-PROT protein database. The clustering is based on an all-against-all BLAST similarity search. The similarities' E-score is used to perform a continuous bottom-up clustering process by applying alternative rules for merging clusters. The outcome of this clustering process is a classification of the input proteins into a hierarchy of clusters of varying degrees of granularity. ProtoNet (version 1.3) is accessible in the form of an interactive web site at http://www.protonet.cs.huji.ac.il. ProtoNet provides navigation tools for monitoring the clustering process with a vertical and horizontal view. Each cluster at any level of the hierarchy is assigned with a statistical index, indicating the level of purity based on biological keywords such as those provided by SWISS-PROT and InterPro. ProtoNet can be used for function prediction, for defining superfamilies and subfamilies and for large-scale protein annotation purposes.

journal_name

Nucleic Acids Res

journal_title

Nucleic acids research

authors

Sasson O,Vaaknin A,Fleischer H,Portugaly E,Bilu Y,Linial N,Linial M

doi

10.1093/nar/gkg096

keywords:

subject

Has Abstract

pub_date

2003-01-01 00:00:00

pages

348-52

issue

1

eissn

0305-1048

issn

1362-4962

journal_volume

31

pub_type

杂志文章
  • SPINE 2: a system for collaborative structural proteomics within a federated database framework.

    abstract::We present version 2 of the SPINE system for structural proteomics. SPINE is available over the web at http://nesg.org. It serves as the central hub for the Northeast Structural Genomics Consortium, allowing collaborative structural proteomics to be carried out in a distributed fashion. The core of SPINE is a laborato...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/gkg397

    authors: Goh CS,Lan N,Echols N,Douglas SM,Milburn D,Bertone P,Xiao R,Ma LC,Zheng D,Wunderlich Z,Acton T,Montelione GT,Gerstein M

    更新日期:2003-06-01 00:00:00

  • Functional RNA polymerase II promoters in solitary retroviral long terminal repeats (LTR-IS elements).

    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

    authors: Köhrer K,Grummt I,Horak I

    更新日期:1985-04-11 00:00:00

  • Dual transcriptional-translational cascade permits cellular level tuneable expression control.

    abstract::The ability to induce gene expression in a small molecule dependent manner has led to many applications in target discovery, functional elucidation and bio-production. To date these applications have relied on a limited set of protein-based control mechanisms operating at the level of transcription initiation. The dis...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/gkv912

    authors: Morra R,Shankar J,Robinson CJ,Halliwell S,Butler L,Upton M,Hay S,Micklefield J,Dixon N

    更新日期:2016-02-18 00:00:00

  • Target site cleavage by the monomeric restriction enzyme BcnI requires translocation to a random DNA sequence and a switch in enzyme orientation.

    abstract::Endonucleases that generate double-strand breaks in DNA often possess two identical subunits related by rotational symmetry, arranged so that the active sites from each subunit act on opposite DNA strands. In contrast to many endonucleases, Type IIP restriction enzyme BcnI, which recognizes the pseudopalindromic seque...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/gkr588

    authors: Sasnauskas G,Kostiuk G,Tamulaitis G,Siksnys V

    更新日期:2011-11-01 00:00:00

  • Different binding site requirements for binding and activation for the bipartite enhancer factor EF-1A.

    abstract::The human transcription factor EF-1A binds to the purine-rich E1A core enhancer sequence in the adenovirus E1A and E4 and polyomavirus enhancer regions. The consensus binding site for EF-1A resembles that of members of the ets domain protein family. EF-1A activation of transcription requires a dimeric binding site. An...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/20.24.6555

    authors: Bolwig GM,Bruder JT,Hearing P

    更新日期:1992-12-25 00:00:00

  • DNA topology of the ordered chromatin domain 5' to the human c-myc gene.

    abstract::DNA restriction fragments located 5' to the human c-myc gene display anomalous electrophoretic mobility on polyacrylamide gels. Computer modeling of the c-myc flanking DNA suggests that the slow-moving DNA fragments spanning nucleotides -1690 to -1054 (relative to c-myc promoter P1) and -718 to -452 form large left ha...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/17.7.2819

    authors: Kumar S,Leffak M

    更新日期:1989-04-11 00:00:00

  • Gene delivery by dendrimers operates via a cholesterol dependent pathway.

    abstract::Understanding the cellular uptake and intracellular trafficking of dendrimer-DNA complexes is an important prerequisite for improving the transfection efficiency of non-viral vector-mediated gene delivery. Dendrimers are synthetic polymers used for gene transfer. Although these cationic molecules show promise as versa...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/gkh595

    authors: Manunta M,Tan PH,Sagoo P,Kashefi K,George AJ

    更新日期:2004-05-17 00:00:00

  • Splicing factor SF3a60 is the mammalian homologue of PRP9 of S.cerevisiae: the conserved zinc finger-like motif is functionally exchangeable in vivo.

    abstract::A cDNA encoding the 60 kDa subunit of mammalian splicing factor SF3a has been isolated. The deduced protein sequence reveals a 30% identity to the PRP9 splicing protein of the yeast S.cerevisiae. The highest homology is present in a zinc finger-like region in the C-terminal domain of both proteins. The PRP9 zinc finge...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/22.24.5223

    authors: Krämer A,Legrain P,Mulhauser F,Gröning K,Brosi R,Bilbe G

    更新日期:1994-12-11 00:00:00

  • Inferring the regulatory network behind a gene expression experiment.

    abstract::Transcription factors (TFs) and miRNAs are the most important dynamic regulators in the control of gene expression in multicellular organisms. These regulatory elements play crucial roles in development, cell cycling and cell signaling, and they have also been associated with many diseases. The Regulatory Network Anal...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/gks573

    authors: Bleda M,Medina I,Alonso R,De Maria A,Salavert F,Dopazo J

    更新日期:2012-07-01 00:00:00

  • Chromosome XII context is important for rDNA function in yeast.

    abstract::The rDNA cluster in Saccharomyces cerevisiae is located 450 kb from the left end and 610 kb from the right end of chromosome XII and consists of approximately 150 tandemly repeated copies of a 9.1 kb rDNA unit. To explore the biological significance of this specific chromosomal context, chromosome XII was split at bot...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/gkl293

    authors: Kim YH,Ishikawa D,Ha HP,Sugiyama M,Kaneko Y,Harashima S

    更新日期:2006-05-31 00:00:00

  • A new method for gene discovery in large-scale microarray data.

    abstract::Microarrays are an effective tool for monitoring genome-wide gene expression levels. In current microarray analyses, the majority of genes on arrays are frequently eliminated for further analysis because the changes in their expression levels (ratios) are considered to be not significant. This strategy risks failure t...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/gkl058

    authors: Yano K,Imai K,Shimizu A,Hanashita T

    更新日期:2006-03-14 00:00:00

  • NCBI's LocusLink and RefSeq.

    abstract::The NCBI has introduced two new web resources-LocusLink and RefSeq-that facilitate retrieval of gene-based information and provide reference sequence standards. These resources are designed to provide a non-redundant view of current knowledge about human genes, transcripts and proteins. Additional information about th...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/28.1.126

    authors: Maglott DR,Katz KS,Sicotte H,Pruitt KD

    更新日期:2000-01-01 00:00:00

  • Packaging of DNA by shell crosslinked nanoparticles.

    abstract::We demonstrate compaction of DNA with nanoscale biomimetic constructs which are robust synthetic analogs of globular proteins. These constructs are approximately 15 nm in diameter, shell crosslinked knedel-like (SCKs) nanoparticles, which are prepared by covalent stabilization of amphiphilic di-block co-polymer micell...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/27.14.2966

    authors: Thurmond KB 2nd,Remsen EE,Kowalewski T,Wooley KL

    更新日期:1999-07-15 00:00:00

  • Ultrasensitive isolation, identification and quantification of DNA-protein adducts by ELISA-based RADAR assay.

    abstract::Enzymes that form transient DNA-protein covalent complexes are targets for several potent classes of drugs used to treat infectious disease and cancer, making it important to establish robust and rapid procedures for analysis of these complexes. We report a method for isolation of DNA-protein adducts and their identif...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/gku490

    authors: Kiianitsa K,Maizels N

    更新日期:2014-07-01 00:00:00

  • Specifically alkylated DNA fragments. Synthesis and physical characterization of d[CGC(O6Me)GCG] and d[CGT(O6Me)GCG].

    abstract::Two hexamer DNA fragments containing a carcinogenic modified base, O6-methyl guanine, have been synthesized by a solid-phase phosphotriester method, in which the unmodified guanine residues present were O6 protected with the 4-nitrophenylethyl group. These two alkylated oligonucleotides were found to have similar Tm's...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/11.10.3393

    authors: Kuzmich S,Marky LA,Jones RA

    更新日期:1983-05-25 00:00:00

  • M-Coffee: combining multiple sequence alignment methods with T-Coffee.

    abstract::We introduce M-Coffee, a meta-method for assembling multiple sequence alignments (MSA) by combining the output of several individual methods into one single MSA. M-Coffee is an extension of T-Coffee and uses consistency to estimate a consensus alignment. We show that the procedure is robust to variations in the choice...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/gkl091

    authors: Wallace IM,O'Sullivan O,Higgins DG,Notredame C

    更新日期:2006-03-23 00:00:00

  • Absolute configuration of Rp-uridine 3',5'-cyclic phosphorothioate.

    abstract::Triethylammonium uridine-3',5'-cyclic phosphorothioate crystallizes in space group P2(1)2(1)2(1), a = 7.177(1), b = 13.155(6), c = 21.114(7) A, C15H26N3O7PS, MW 423.4, Z = 4, dx = 1.41g/cm3. The crystal structure was solved by direct methods on the basis of 1493 counter X-ray diffraction data (CuK alpha) and refined t...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/15.12.4945

    authors: Hinrichs W,Steifa M,Saenger W,Eckstein F

    更新日期:1987-06-25 00:00:00

  • Molecular Biology Database List.

    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

    authors: Burks C

    更新日期:1999-01-01 00:00:00

  • Magnesium-dependent alternative foldings of active and inactive Escherichia coli tRNA(Glu) revealed by chemical probing.

    abstract::A stable conformer of Escherichia coli tRNA(Glu), obtained in the absence of Mg(2+), is inactive in the aminoacylation reaction. Probing it with diethylpyrocarbonate, dimethyl sulfate and ribonuclease V1 revealed that it has a hairpin structure with two internal loops; the helical segments at both extremities have the...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/27.17.3583

    authors: Madore E,Florentz C,Giegé R,Lapointe J

    更新日期:1999-09-01 00:00:00

  • Distinct functions of the RNA polymerase σ subunit region 3.2 in RNA priming and promoter escape.

    abstract::The σ subunit of bacterial RNA polymerase (RNAP) has been implicated in all steps of transcription initiation, including promoter recognition and opening, priming of RNA synthesis, abortive initiation and promoter escape. The post-promoter-recognition σ functions were proposed to depend on its conserved region σ3.2 th...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/gkt1384

    authors: Pupov D,Kuzin I,Bass I,Kulbachinskiy A

    更新日期:2014-04-01 00:00:00

  • JAFA: a protein function annotation meta-server.

    abstract::With the high number of sequences and structures streaming in from genomic projects, there is a need for more powerful and sophisticated annotation tools. Most problematic of the annotation efforts is predicting gene and protein function. Over the past few years there has been considerable progress in automated protei...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/gkl045

    authors: Friedberg I,Harder T,Godzik A

    更新日期:2006-07-01 00:00:00

  • Quantitative analysis of conditional gene inactivation using rationally designed, tetracycline-controlled miRNAs.

    abstract::The combination of RNA interference (RNAi) with the tetracycline-controlled transcription activation (tet) system promises to become a powerful method for conditional gene inactivation in cultured cells and in whole organisms. Here, we tested critical sequence elements that originated from miRNA mR-30 for optimal effi...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/gkq616

    authors: Berger SM,Pesold B,Reber S,Schönig K,Berger AJ,Weidenfeld I,Miao J,Berger MR,Gruss OJ,Bartsch D

    更新日期:2010-09-01 00:00:00

  • TRDB--the Tandem Repeats Database.

    abstract::Tandem repeats in DNA have been under intensive study for many years, first, as a consequence of their usefulness as genomic markers and DNA fingerprints and more recently as their role in human disease and regulatory processes has become apparent. The Tandem Repeats Database (TRDB) is a public repository of informati...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/gkl1013

    authors: Gelfand Y,Rodriguez A,Benson G

    更新日期:2007-01-01 00:00:00

  • Quantitative analysis of specific labelled RNA'S using DNA covalently linked to diazobenzyloxymethyl-paper.

    abstract::Substantial amounts of DNA (at least 25 microgram per cm2) can be stably bound to diazobenzyloxymethyl (DBM)-paper. Complementary RNA will hybridize to the DNA paper almost completely in 24 hours. Using several different conditions of hybridization and washing, the background of RNA bound non-specifically is very low ...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/6.1.195

    authors: Stark GR,Williams JG

    更新日期:1979-01-01 00:00:00

  • PlanMine--a mineable resource of planarian biology and biodiversity.

    abstract::Planarian flatworms are in the midst of a renaissance as a model system for regeneration and stem cells. Besides two well-studied model species, hundreds of species exist worldwide that present a fascinating diversity of regenerative abilities, tissue turnover rates, reproductive strategies and other life history trai...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/gkv1148

    authors: Brandl H,Moon H,Vila-Farré M,Liu SY,Henry I,Rink JC

    更新日期:2016-01-04 00:00:00

  • Transcriptional regulation of the apoAI gene by hepatic nuclear factor 4 in yeast.

    abstract::Hepatocyte Nuclear Factor 4 (HNF-4), a liver-enriched orphan receptor of the nuclear receptor superfamily, is required for the expression of a wide variety of liver-specific genes including apoAI. To explore the possibility that site A of the apoAI gene enhancer might also be the target for HNF-4 without the interfere...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/22.25.5665

    authors: Fuernkranz HA,Wang Y,Karathanasis SK,Mak P

    更新日期:1994-12-25 00:00:00

  • CLIPick: a sensitive peak caller for expression-based deconvolution of HITS-CLIP signals.

    abstract::High-throughput sequencing of RNAs isolated by crosslinking immunoprecipitation (HITS-CLIP, also called CLIP-Seq) has been used to map global RNA-protein interactions. However, a critical caveat of HITS-CLIP results is that they contain non-linear background noise-different extent of non-specific interactions caused b...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/gky917

    authors: Park S,Ahn SH,Cho ES,Cho YK,Jang ES,Chi SW

    更新日期:2018-11-30 00:00:00

  • Solution structure of human P1•P2 heterodimer provides insights into the role of eukaryotic stalk in recruiting the ribosome-inactivating protein trichosanthin to the ribosome.

    abstract::Lateral ribosomal stalk is responsible for binding and recruiting translation factors during protein synthesis. The eukaryotic stalk consists of one P0 protein with two copies of P1•P2 heterodimers to form a P0(P1•P2)₂ pentameric P-complex. Here, we have solved the structure of full-length P1•P2 by nuclear magnetic re...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/gkt636

    authors: Lee KM,Yusa K,Chu LO,Yu CW,Oono M,Miyoshi T,Ito K,Shaw PC,Wong KB,Uchiumi T

    更新日期:2013-10-01 00:00:00

  • Tuning the relative affinities for activating and repressing operators of a temporally regulated restriction-modification system.

    abstract::Most type II restriction-modification (R-M) systems produce separate endonuclease (REase) and methyltransferase (MTase) proteins. After R-M genes enter a new cell, MTase activity must appear before REase or the host chromosome will be cleaved. Temporal control of these genes thus has life-or-death consequences. PvuII ...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/gkn1010

    authors: Mruk I,Blumenthal RM

    更新日期:2009-02-01 00:00:00

  • Ensembl 2018.

    abstract::The Ensembl project has been aggregating, processing, integrating and redistributing genomic datasets since the initial releases of the draft human genome, with the aim of accelerating genomics research through rapid open distribution of public data. Large amounts of raw data are thus transformed into knowledge, which...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/gkx1098

    authors: Zerbino DR,Achuthan P,Akanni W,Amode MR,Barrell D,Bhai J,Billis K,Cummins C,Gall A,Girón CG,Gil L,Gordon L,Haggerty L,Haskell E,Hourlier T,Izuogu OG,Janacek SH,Juettemann T,To JK,Laird MR,Lavidas I,Liu Z,Lovel

    更新日期:2018-01-04 00:00:00