Telomeric organization of a variable and inducible toxin gene family in the ancient eukaryote Giardia duodenalis.

Abstract:

:Giardia duodenalis is the best-characterized example of the most ancient eukaryotes, which are primitively amitochondrial and anaerobic. The surface of Giardia is coated with cysteine-rich proteins. One family of these proteins, CRP136, varies among isolates and upon environmental stress. A repeat region within the CRP136 family is interchangeable by a cassette-like mechanism, generating further diversity in repeat size, copy number, and sequence. Flanking the 5' region of the CRP136 family is a novel protein kinase gene and an ankyrin homolog, creating a conserved unit. A short spacer separates the ankyrin gene from the variable, tandem array of rDNA gene units at a common breakpoint within the large subunit gene, which is followed by the (TAGGG)n telomeric sequence. Transcriptional up-regulation of the CRP136 family is accompanied by a switch in mRNA length and promoter, of de novo expression, and suggests that CRP136 mRNA induction is under the control of a telomerically regulated position effect, which evolved very early in the eukaryotic lineage.

journal_name

Genome Res

journal_title

Genome research

authors

Upcroft P,Chen N,Upcroft JA

doi

10.1101/gr.7.1.37

subject

Has Abstract

pub_date

1997-01-01 00:00:00

pages

37-46

issue

1

eissn

1088-9051

issn

1549-5469

journal_volume

7

pub_type

杂志文章
  • Allele-specific methylation is prevalent and is contributed by CpG-SNPs in the human genome.

    abstract::In diploid mammalian genomes, parental alleles can exhibit different methylation patterns (allele-specific DNA methylation, ASM), which have been documented in a small number of cases except for the imprinted regions and X chromosomes in females. We carried out a chromosome-wide survey of ASM across 16 human pluripote...

    journal_title:Genome research

    pub_type: 杂志文章

    doi:10.1101/gr.104695.109

    authors: Shoemaker R,Deng J,Wang W,Zhang K

    更新日期:2010-07-01 00:00:00

  • A periodic pattern of SNPs in the human genome.

    abstract::By surveying a filtered, high-quality set of SNPs in the human genome, we have found that SNPs positioned 1, 2, 4, 6, or 8 bp apart are more frequent than SNPs positioned 3, 5, 7, or 9 bp apart. The observed pattern is not restricted to genomic regions that are known to cause sequencing or alignment errors, for exampl...

    journal_title:Genome research

    pub_type: 杂志文章

    doi:10.1101/gr.6223207

    authors: Madsen BE,Villesen P,Wiuf C

    更新日期:2007-10-01 00:00:00

  • Analysis of 5' junctions of human LINE-1 and Alu retrotransposons suggests an alternative model for 5'-end attachment requiring microhomology-mediated end-joining.

    abstract::Insertion of the human non-LTR retrotransposon LINE-1 (L1) into chromosomal DNA is thought to be initiated by a mechanism called target-primed reverse transcription (TPRT). This mechanism readily accounts for the attachment of the 3'-end of an L1 copy to the genomic target, but the subsequent integration steps leading...

    journal_title:Genome research

    pub_type: 杂志文章

    doi:10.1101/gr.3421505

    authors: Zingler N,Willhoeft U,Brose HP,Schoder V,Jahns T,Hanschmann KM,Morrish TA,Löwer J,Schumann GG

    更新日期:2005-06-01 00:00:00

  • New class of microRNA targets containing simultaneous 5'-UTR and 3'-UTR interaction sites.

    abstract::MicroRNAs (miRNAs) are known to post-transcriptionally regulate target mRNAs through the 3'-UTR, which interacts mainly with the 5'-end of miRNA in animals. Here we identify many endogenous motifs within human 5'-UTRs specific to the 3'-ends of miRNAs. The 3'-end of conserved miRNAs in particular has significant inter...

    journal_title:Genome research

    pub_type: 杂志文章

    doi:10.1101/gr.089367.108

    authors: Lee I,Ajay SS,Yook JI,Kim HS,Hong SH,Kim NH,Dhanasekaran SM,Chinnaiyan AM,Athey BD

    更新日期:2009-07-01 00:00:00

  • Biological data sciences in genome research.

    abstract::The last 20 years have been a remarkable era for biology and medicine. One of the most significant achievements has been the sequencing of the first human genomes, which has laid the foundation for profound insights into human genetics, the intricacies of regulation and development, and the forces of evolution. Incred...

    journal_title:Genome research

    pub_type: 杂志文章

    doi:10.1101/gr.191684.115

    authors: Schatz MC

    更新日期:2015-10-01 00:00:00

  • PRDM9 binding organizes hotspot nucleosomes and limits Holliday junction migration.

    abstract::In mammals, genetic recombination during meiosis is limited to a set of 1- to 2-kb regions termed hotspots. Their locations are predominantly determined by the zinc finger protein PRDM9, which binds to DNA in hotspots and subsequently uses its SET domain to locally trimethylate histone H3 at lysine 4 (H3K4me3). This s...

    journal_title:Genome research

    pub_type: 杂志文章

    doi:10.1101/gr.170167.113

    authors: Baker CL,Walker M,Kajita S,Petkov PM,Paigen K

    更新日期:2014-05-01 00:00:00

  • Uncovering cis-regulatory sequence requirements for context-specific transcription factor binding.

    abstract::The regulation of gene expression is mediated at the transcriptional level by enhancer regions that are bound by sequence-specific transcription factors (TFs). Recent studies have shown that the in vivo binding sites of single TFs differ between developmental or cellular contexts. How this context-specific binding is ...

    journal_title:Genome research

    pub_type: 杂志文章

    doi:10.1101/gr.132811.111

    authors: Yáñez-Cuna JO,Dinh HQ,Kvon EZ,Shlyueva D,Stark A

    更新日期:2012-10-01 00:00:00

  • A non-EST-based method for exon-skipping prediction.

    abstract::It is estimated that between 35% and 74% of all human genes can undergo alternative splicing. Currently, the most efficient methods for large-scale detection of alternative splicing use expressed sequence tags (ESTs) or microarray analysis. As these methods merely sample the transcriptome, splice variants that do not ...

    journal_title:Genome research

    pub_type: 杂志文章

    doi:10.1101/gr.2572604

    authors: Sorek R,Shemesh R,Cohen Y,Basechess O,Ast G,Shamir R

    更新日期:2004-08-01 00:00:00

  • The extensive and condition-dependent nature of epistasis among whole-genome duplicates in yeast.

    abstract::Since complete redundancy between extant duplicates (paralogs) is evolutionarily unfavorable, some degree of functional congruency is eventually lost. However, in budding yeast, experimental evidence collected for duplicated metabolic enzymes and in global physical interaction surveys had suggested widespread function...

    journal_title:Genome research

    pub_type: 杂志文章

    doi:10.1101/gr.076174.108

    authors: Musso G,Costanzo M,Huangfu M,Smith AM,Paw J,San Luis BJ,Boone C,Giaever G,Nislow C,Emili A,Zhang Z

    更新日期:2008-07-01 00:00:00

  • Evolution of transcript modification by N6-methyladenosine in primates.

    abstract::Phenotypic differences within populations and between closely related species are often driven by variation and evolution of gene expression. However, most analyses have focused on the effects of genomic variation at cis-regulatory elements such as promoters and enhancers that control transcriptional activity, and lit...

    journal_title:Genome research

    pub_type: 杂志文章

    doi:10.1101/gr.212563.116

    authors: Ma L,Zhao B,Chen K,Thomas A,Tuteja JH,He X,He C,White KP

    更新日期:2017-03-01 00:00:00

  • Nature and structure of human genes that generate retropseudogenes.

    abstract::The human genome is estimated to contain 23,000 to 33,000 retropseudogenes. To study the properties of genes giving rise to these retroelements, we compared the structure and expression of genes with or without known retropseudogenes. Four main features have emerged from the analysis of 181 genes associated to retrops...

    journal_title:Genome research

    pub_type: 杂志文章

    doi:10.1101/gr.10.5.672

    authors: Gonçalves I,Duret L,Mouchiroud D

    更新日期:2000-05-01 00:00:00

  • Bacterial genomes as new gene homes: the genealogy of ORFans in E. coli.

    abstract::Differences in gene repertoire among bacterial genomes are usually ascribed to gene loss or to lateral gene transfer from unrelated cellular organisms. However, most bacteria contain large numbers of ORFans, that is, annotated genes that are restricted to a particular genome and that possess no known homologs. The uni...

    journal_title:Genome research

    pub_type: 杂志文章

    doi:10.1101/gr.2231904

    authors: Daubin V,Ochman H

    更新日期:2004-06-01 00:00:00

  • The genome sequence of Mycoplasma mycoides subsp. mycoides SC type strain PG1T, the causative agent of contagious bovine pleuropneumonia (CBPP).

    abstract::Mycoplasma mycoides subsp. mycoidesSC (MmymySC)is the etiological agent of contagious bovine pleuropneumonia (CBPP), a highly contagious respiratory disease in cattle. The genome of Mmymy SC type strain PG1(T) has been sequenced to map all the genes and to facilitate further studies regarding the cell function of the ...

    journal_title:Genome research

    pub_type: 杂志文章

    doi:10.1101/gr.1673304

    authors: Westberg J,Persson A,Holmberg A,Goesmann A,Lundeberg J,Johansson KE,Pettersson B,Uhlén M

    更新日期:2004-02-01 00:00:00

  • Detecting ancient positive selection in humans using extended lineage sorting.

    abstract::Natural selection that affected modern humans early in their evolution has likely shaped some of the traits that set present-day humans apart from their closest extinct and living relatives. The ability to detect ancient natural selection in the human genome could provide insights into the molecular basis for these hu...

    journal_title:Genome research

    pub_type: 杂志文章

    doi:10.1101/gr.219493.116

    authors: Peyrégne S,Boyle MJ,Dannemann M,Prüfer K

    更新日期:2017-09-01 00:00:00

  • Gene3D: structural assignment for whole genes and genomes using the CATH domain structure database.

    abstract::We present a novel web-based resource, Gene3D, of precalculated structural assignments to gene sequences and whole genomes. This resource assigns structural domains from the CATH database to whole genes and links these to their curated functional and structural annotations within the CATH domain structure database, th...

    journal_title:Genome research

    pub_type: 杂志文章

    doi:10.1101/gr.213802

    authors: Buchan DW,Shepherd AJ,Lee D,Pearl FM,Rison SC,Thornton JM,Orengo CA

    更新日期:2002-03-01 00:00:00

  • Judging the quality of gene expression-based clustering methods using gene annotation.

    abstract::We compare several commonly used expression-based gene clustering algorithms using a figure of merit based on the mutual information between cluster membership and known gene attributes. By studying various publicly available expression data sets we conclude that enrichment of clusters for biological function is, in g...

    journal_title:Genome research

    pub_type: 杂志文章

    doi:10.1101/gr.397002

    authors: Gibbons FD,Roth FP

    更新日期:2002-10-01 00:00:00

  • A first version of the Caenorhabditis elegans Promoterome.

    abstract::An important aspect of the development of systems biology approaches in metazoans is the characterization of expression patterns of nearly all genes predicted from genome sequences. Such "localizome" maps should provide information on where (in what cells or tissues) and when (at what stage of development or under wha...

    journal_title:Genome research

    pub_type: 杂志文章

    doi:10.1101/gr.2497604

    authors: Dupuy D,Li QR,Deplancke B,Boxem M,Hao T,Lamesch P,Sequerra R,Bosak S,Doucette-Stamm L,Hope IA,Hill DE,Walhout AJ,Vidal M

    更新日期:2004-10-01 00:00:00

  • Accurate gene-tree reconstruction by learning gene- and species-specific substitution rates across multiple complete genomes.

    abstract::Comparative genomics provides a general methodology for discovering functional DNA elements and understanding their evolution. The availability of many related genomes enables more powerful analyses, but requires rigorous phylogenetic methods to resolve orthologous genes and regions. Here, we use 12 recently sequenced...

    journal_title:Genome research

    pub_type: 杂志文章

    doi:10.1101/gr.7105007

    authors: Rasmussen MD,Kellis M

    更新日期:2007-12-01 00:00:00

  • High-salt-recovered sequences are associated with the active chromosomal compartment and with large ribonucleoprotein complexes including nuclear bodies.

    abstract::The mammalian cell nucleus contains numerous discrete suborganelles named nuclear bodies. While recruitment of specific genomic regions into these large ribonucleoprotein (RNP) complexes critically contributes to higher-order functional chromatin organization, such regions remain ill-defined. We have developed the hig...

    journal_title:Genome research

    pub_type: 杂志文章

    doi:10.1101/gr.237073.118

    authors: Baudement MO,Cournac A,Court F,Seveno M,Parrinello H,Reynes C,Sabatier R,Bouschet T,Yi Z,Sallis S,Tancelin M,Rebouissou C,Cathala G,Lesne A,Mozziconacci J,Journot L,Forné T

    更新日期:2018-11-01 00:00:00

  • Perspectives: sequence data base searching in the era of large-scale genomic sequencing.

    abstract::Large-scale sequencing of human and model organism genomes will have a profound impact on our ability to use sequence data base searching to predict the biochemical functions of sequences of interest. Despite the great value of more sequences in the data bases, a huge increase in data base size will also have adverse ...

    journal_title:Genome research

    pub_type: 杂志文章,评审

    doi:10.1101/gr.6.8.653

    authors: Smith RF

    更新日期:1996-08-01 00:00:00

  • Large-scale genome analysis of bovine commensal Escherichia coli reveals that bovine-adapted E. coli lineages are serving as evolutionary sources of the emergence of human intestinal pathogenic strains.

    abstract::How pathogens evolve their virulence to humans in nature is a scientific issue of great medical and biological importance. Shiga toxin (Stx)-producing Escherichia coli (STEC) and enteropathogenic E. coli (EPEC) are the major foodborne pathogens that can cause hemolytic uremic syndrome and infantile diarrhea, respectiv...

    journal_title:Genome research

    pub_type: 杂志文章

    doi:10.1101/gr.249268.119

    authors: Arimizu Y,Kirino Y,Sato MP,Uno K,Sato T,Gotoh Y,Auvray F,Brugere H,Oswald E,Mainil JG,Anklam KS,Döpfer D,Yoshino S,Ooka T,Tanizawa Y,Nakamura Y,Iguchi A,Morita-Ishihara T,Ohnishi M,Akashi K,Hayashi T,Ogura Y

    更新日期:2019-09-01 00:00:00

  • Detecting copy number variation with mated short reads.

    abstract::The development of high-throughput sequencing (HTS) technologies has opened the door to novel methods for detecting copy number variants (CNVs) in the human genome. While in the past CNVs have been detected based on array CGH data, recent studies have shown that depth-of-coverage information from HTS technologies can ...

    journal_title:Genome research

    pub_type: 杂志文章

    doi:10.1101/gr.106344.110

    authors: Medvedev P,Fiume M,Dzamba M,Smith T,Brudno M

    更新日期:2010-11-01 00:00:00

  • A palindromic structure in the pericentromeric region of various human chromosomes.

    abstract::The primate-specific multisequence family chAB4 is represented with approximately 40 copies within the haploid human genome. Former analyis revealed that unusually long repetition units ( > 35 kb) are distributed to at least eight different chromosomal loci. Remarkably varying copy-numbers within the genomes of closel...

    journal_title:Genome research

    pub_type: 杂志文章

    doi:10.1101/gr.6.4.267

    authors: Wöhr G,Fink T,Assum G

    更新日期:1996-04-01 00:00:00

  • Long noncoding RNAs in C. elegans.

    abstract::Thousands of long noncoding RNAs (lncRNAs) have been found in vertebrate animals, a few of which have known biological roles. To better understand the genomics and features of lncRNAs in invertebrates, we used available RNA-seq, poly(A)-site, and ribosome-mapping data to identify lncRNAs of Caenorhabditis elegans. We ...

    journal_title:Genome research

    pub_type: 杂志文章

    doi:10.1101/gr.140475.112

    authors: Nam JW,Bartel DP

    更新日期:2012-12-01 00:00:00

  • A contiguous high-resolution radiation hybrid map of 44 loci from the distal portion of the long arm of human chromosome 5.

    abstract::A contiguous high-resolution map of 44 loci from a 35-Mb portion of the distal region of the long arm of human chromosome 5, q21-q35, was produced using radiation hybrid (RH) mapping in conjunction with a natural deletion mapping panel. The map includes 30 genes, four sequence-tagged site (STS) loci, and 10 DNA marker...

    journal_title:Genome research

    pub_type: 杂志文章

    doi:10.1101/gr.6.7.628

    authors: Warrington JA,Wasmuth JJ

    更新日期:1996-07-01 00:00:00

  • A platform for curated products from novel open reading frames prompts reinterpretation of disease variants.

    abstract::Recent evidence from proteomics and deep massively parallel sequencing studies have revealed that eukaryotic genomes contain substantial numbers of as-yet-uncharacterized open reading frames (ORFs). We define these uncharacterized ORFs as novel ORFs (nORFs). nORFs in humans are mostly under 100 codons and are found in...

    journal_title:Genome research

    pub_type: 杂志文章

    doi:10.1101/gr.263202.120

    authors: Neville MDC,Kohze R,Erady C,Meena N,Hayden M,Cooper DN,Mort M,Prabakaran S

    更新日期:2021-01-19 00:00:00

  • Why do human diversity levels vary at a megabase scale?

    abstract::Levels of diversity vary across the human genome. This variation is caused by two forces: differences in mutation rates and the differential impact of natural selection. Pertinent to the question of the relative importance of these two forces is the observation that both diversity within species and interspecies diver...

    journal_title:Genome research

    pub_type: 杂志文章

    doi:10.1101/gr.3461105

    authors: Hellmann I,Prüfer K,Ji H,Zody MC,Pääbo S,Ptak SE

    更新日期:2005-09-01 00:00:00

  • Coding and noncoding variants in HFM1, MLH3, MSH4, MSH5, RNF212, and RNF212B affect recombination rate in cattle.

    abstract::We herein study genetic recombination in three cattle populations from France, New Zealand, and the Netherlands. We identify 2,395,177 crossover (CO) events in 94,516 male gametes, and 579,996 CO events in 25,332 female gametes. The average number of COs was found to be larger in males (23.3) than in females (21.4). T...

    journal_title:Genome research

    pub_type: 杂志文章

    doi:10.1101/gr.204214.116

    authors: Kadri NK,Harland C,Faux P,Cambisano N,Karim L,Coppieters W,Fritz S,Mullaart E,Baurain D,Boichard D,Spelman R,Charlier C,Georges M,Druet T

    更新日期:2016-10-01 00:00:00

  • GeneID in Drosophila.

    abstract::GeneID is a program to predict genes in anonymous genomic sequences designed with a hierarchical structure. In the first step, splice sites, and start and stop codons are predicted and scored along the sequence using position weight matrices (PWMs). In the second step, exons are built from the sites. Exons are scored ...

    journal_title:Genome research

    pub_type: 杂志文章

    doi:10.1101/gr.10.4.511

    authors: Parra G,Blanco E,Guigó R

    更新日期:2000-04-01 00:00:00

  • 2C-Cas9: a versatile tool for clonal analysis of gene function.

    abstract::CRISPR/Cas9-mediated targeted mutagenesis allows efficient generation of loss-of-function alleles in zebrafish. To date, this technology has been primarily used to generate genetic knockout animals. Nevertheless, the study of the function of certain loci might require tight spatiotemporal control of gene inactivation....

    journal_title:Genome research

    pub_type: 杂志文章

    doi:10.1101/gr.196170.115

    authors: Di Donato V,De Santis F,Auer TO,Testa N,Sánchez-Iranzo H,Mercader N,Concordet JP,Del Bene F

    更新日期:2016-05-01 00:00:00