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Volume 3 Issue 9
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Comment |
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Life sentences: Detective Rummage investigates
Sydney Brenner Genome Biology 2002, 3:comment1013-comment1013.2 (21 August 2002)
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Editor’s summary
It is very ego-warming to be recognized by quotation, but not always easy to find the original source.
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Fish tale
Gregory A Petsko Genome Biology 2002, 3:comment1012-comment1012.2 (27 August 2002)
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Editor’s summary
The draft sequence of the genome of the Japanese pufferfish has just been announced and the temptation to humor is great.
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Review |
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The retinoblastoma family: twins or distant cousins?
Pier Claudio, Tiziana Tonini, Antonio Giordano Genome Biology 2002, 3:reviews3012-reviews3012.9 (28 August 2002)
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Editor’s summary
The retinoblastoma family consists of the well-studied tumor suppressor pRb/p105 and two recently identified proteins, pRb2/p130 and p107. Members of the family can bind and repress transcription factors and other regulatory proteins and have roles in growth suppression, differentiation and apoptosis.
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Sushi gets serious: the draft genome sequence of the pufferfish Fugu rubripes
Martin S Taylor, Colin AM Semple Genome Biology 2002, 3:reviews1025-reviews1025.6 (28 August 2002)
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Editor’s summary
The publication of the Fugu rubripes draft genome sequence will take this fish from culinary delicacy to potent tool in deciphering the mysteries of human genome function.
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Evolutionary origins of the endosperm in flowering plants
Célia Baroux, Charles Spillane, Ueli Grossniklaus Genome Biology 2002, 3:reviews1026-reviews1026.5 (30 August 2002)
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Editor’s summary
The recent resurgence of approaches to evolutionary developmental biology combining comparative biology with phylogenetics provides new understanding of endosperm origins.
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Have microarrays failed to deliver for developmental biology?
Rick Livesey Genome Biology 2002, 3:comment2009-comment2009.5 (27 August 2002)
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Editor’s summary
Microarrays for some invertebrates and vertebrates have been available for some time, to date there have been few published studies using microarrays to generate novel insights in developmental biology.
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Report |
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Sex determination in fish
Jean-Nicolas Volff Genome Biology 2002, 3:reports0052 (27 August 2002)
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Editor’s summary
An excellent candidate for the master sex-determining gene on the Y chromosome of the medaka fish is not related to the mammalian SRY gene
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Human and mouse transriptome databases
Chris Berrie Genome Biology 2002, 3:reports0047 (2 September 2002)
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Editor’s summary
The specificity of tissue transcriptional activities may be understood via high-throughput gene-expression profiling of a significant fraction of the human and mouse transcriptomes
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Insights into an extreme lifestyle
Wim D'Haeze Genome Biology 2002, 3:reports0048 (2 September 2002)
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Editor’s summary
Sequencing Thermoanaerobacter tengcongensis reveals clues as to how this thermophile manages to live an extreme lifestyle
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Secreting an enterotoxin
Wim D'Haeze Genome Biology 2002, 3:reports0049 (2 September 2002)
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Editor’s summary
Understanding the secretion of an enterotoxin by enterotoxigenic Escherichia coli strains paves the way to the development of new drugs
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Anthrax toxin interactions
Wim D'Haeze Genome Biology 2002, 3:reports0050 (2 September 2002)
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Editor’s summary
Understanding how Bacillus anthracis initiates anthrax in humans
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Anthrax initiation
Wim D'Haeze Genome Biology 2002, 3:reports0051 (2 September 2002)
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Editor’s summary
The mechanism by which Bacillus anthracis initiates anthrax in humans involves key protein-protein interactions, the site for which have now been mapped
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Legume genomes and discoveries in symbiosis research
Michael K Udvardi Genome Biology 2002, 3:reports4028-reports4028.3 (21 August 2002)
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Editor’s summary
A report on the First International Conference on Legume Genomics and Genetics: Translation to Crop Improvement, Minneapolis-St. Paul, USA, 2-6 June 2002.
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Sequence-based genomics
Andrew JG Simpson Genome Biology 2002, 3:reports4029-reports4029.2 (27 August 2002)
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Editor’s summary
A report on the Genome-Based Pathogen Biology meeting, Hinxton, UK, 7-10 July 2002.
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When cell biology and neurobiology meet
Cristina Pelizon Genome Biology 2002, 3:reports4030-reports4030.3 (27 August 2002)
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Editor’s summary
A report on the British Society for Cell Biology (BSCB) meetin on 'Cell Biology and Neurobiology: A Meeting for Martin Raff', London, UK, 3-5 July 2002.
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Ranking genes with respect to differential expression
Per Broberg Genome Biology 2002, 3:preprint0007-preprint0007.23 (5 August 2002)
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Editor’s summary
A method for finding an optimal test statistic for microarrdy data with which to rank genes with respect to differential expression is outlined and tested. At the heart of the method lies an estimate of the false negative and false positive rates. The method outperforms commonly used alternatives.
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Heart Specific Genes Revealed by EST Sampling
Karine Mégy, Stéphane Audic, Jean-Michel Claverie Genome Biology 2002, 3:preprint0008-preprint0008.25 (16 August 2002)
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Editor’s summary
A comprehensive analysis of the expression profiles was preformed to identify genes over-expressed in the human adult heart using the public Expressed Sequence Tags database. The identification of 35 cardiac specific genes significantly over-expressed in the heart is reported. A list of genes expressed in the heart are presented, one of them being a candidate for a bleeding disorder.
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Muscling in on chromosomal clusters
Jonathan B Weitzman Genome Biology 2002, 3:spotlight-20020902-01 (2 September 2002)
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Editor’s summary
Genes expressed in worm muscle are found in clusters throughout the genome.
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Anthrax-induced apoptosis
Jonathan B Weitzman Genome Biology 2002, 3:spotlight-20020903-01 (3 September 2002)
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Editor’s summary
The anthrax-causing bacterium kills activated macrophages by deregulating signalling pathways.
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Stopping hedgehogs
Jonathan B Weitzman Genome Biology 2002, 3:spotlight-20020904-01 (4 September 2002)
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Antagonists of the Hedgehog pathway inhibit the growth of medulloblastoma tumors.
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Sweet microarrays
Jonathan B Weitzman Genome Biology 2002, 3:spotlight-20020905-01 (5 September 2002)
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Editor’s summary
Oligosaccharide microarrays can be used to detect sugar-protein interactions.
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Seeing the light
Theodora Bloom Genome Biology 2002, 3:spotlight-20020906-01 (6 September 2002)
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Editor’s summary
The diversity of circadian signalling mechanisms makes it hard to identify the key photopigments of mammalian circadian cycles.
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Shedding light on gene regulation
Jonathan B Weitzman Genome Biology 2002, 3:spotlight-20020906-02 (6 September 2002)
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Editor’s summary
A phytochrome photoreceptor from plants has been used to create a gene expression system that can be induced by red light.
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Pheromone phenotypes
Jonathan B Weitzman Genome Biology 2002, 3:spotlight-20020909-01 (9 September 2002)
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Editor’s summary
Disruption of a genomic cluster of pheromone receptors results in behavioural and chemosensory dysfunction.
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Sequence of a symbiont
Jonathan B Weitzman Genome Biology 2002, 3:spotlight-20020910-01 (10 September 2002)
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Editor’s summary
The genome of Wigglesworthia glossinidia, the obligate symbiont of the tsetse fly, has been sequenced.
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The aptness of aptamers
Jonathan B Weitzman Genome Biology 2002, 3:spotlight-20020911-01 (11 September 2002)
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Editor’s summary
RNA aptamers can be used to create antidote-controlled anticoagulant agents.
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Rice knockouts
Jonathan B Weitzman Genome Biology 2002, 3:spotlight-20020912-01 (12 September 2002)
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Editor’s summary
Rice genes can be manipulated by homologous recombination.
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Characterizing a stem cell niche
Jonathan B Weitzman Genome Biology 2002, 3:spotlight-20020913-01 (13 September 2002)
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Editor’s summary
A functional genomic approach has been used to investigate a stem-cell supportive stromal cell line.
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High-priority genomes announced
Tabitha M Powledge Genome Biology 2002, 3:spotlight-20020913-02 (13 September 2002)
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Editor’s summary
The politically popular dog and cow have made the A-list for US genome sequencers.
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Methylation and imprinting
Jonathan B Weitzman Genome Biology 2002, 3:spotlight-20020916-02 (16 September 2002)
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Deletion of a differentially methylated locus affects the imprinting of nearby genes in mice.
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Some like it hot
Tudor P Toma Genome Biology 2002, 3:spotlight-20020916-01 (16 September 2002)
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Editor’s summary
An untranslated mRNA acts as a thermosensor controlling the expression of Listeria virulence genes at 37°C.
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Mighty splicing machine
Jonathan B Weitzman Genome Biology 2002, 3:spotlight-20020917-02 (17 September 2002)
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Proteomic analysis has identified around 145 proteins that are part of the spliceosome machinery.
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Macaque advocates seek higher status
Tabitha M Powledge Genome Biology 2002, 3:spotlight-20020917-01 (17 September 2002)
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NIH genome priorities misplaced, say miffed monkey researchers.
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"Stemness"
Jonathan B Weitzman Genome Biology 2002, 3:spotlight-20020918-01 (18 September 2002)
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Transcriptional analysis has identified sets of genes specifically expressed in stem cells.
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Data access concerns
Eugene Russo Genome Biology 2002, 3:spotlight-20020919-02 (19 September 2002)
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Experts convene at the National Academy of Sciences to discuss restrictions on data access.
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Early introns
Jonathan B Weitzman Genome Biology 2002, 3:spotlight-20020919-01 (19 September 2002)
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The discovery of canonical introns in simple eukaryotic organisms challenges ideas about the origins of spliceosomal introns.
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Cutting down Scarecrows
Jonathan B Weitzman Genome Biology 2002, 3:spotlight-20020920-01 (20 September 2002)
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A microRNA in Arabidopsis guides the cleavage of mRNAs encoding members of the Scarecrow-like family.
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Forkhead protection
Jonathan B Weitzman Genome Biology 2002, 3:spotlight-20020923-01 (23 September 2002)
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The Forkhead transcription factor FOXO3a protects cells from oxidative stress by regulating manganese superoxide dismutase.
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It only takes one bloom
Jonathan B Weitzman Genome Biology 2002, 3:spotlight-20020924-01 (24 September 2002)
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Heterozygous mutations of the Blm gene are associated with cancer risk in mice and humans.
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What makes fruit pear-shaped?
Jonathan B Weitzman Genome Biology 2002, 3:spotlight-20020925-01 (25 September 2002)
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A novel gene regulates the development of pear-shaped tomatoes.
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Caspase-8 mutations cause autoimmunity
Jonathan Weitzman Genome Biology 2002, 3:spotlight-20020927-01 (27 September 2002)
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Studies of human immunodeficiency patients link caspase-8 to homeostatic regulation of the immune system.
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Testing times ahead
Pete Moore Genome Biology 2002, 3:spotlight-20020930-01 (30 September 2002)
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Talk of the $1000 genome comes as UK's Human Genetics Commission consults on gene testing
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As harlequins grow old
Jonathan B Weitzman Genome Biology 2002, 3:spotlight-20020930-02 (30 September 2002)
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The gene underlying underlying progressive neurodegeneration in the harlequin mouse mutant is a mitochondrial oxidorectase involved in cell death.
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Research |
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NEAT: a domain duplicated in genes near the components of a putative Fe3+ siderophore transporter from Gram-positive pathogenic bacteria
Miguel A Andrade, Francesca D Ciccarelli, Carolina Perez-Iratxeta, Peer Bork Genome Biology 2002, 3:research0047-research0047.5 (15 August 2002)
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Editor’s summary
Iron uptake from the host is essential for bacteria that infect animals. A protein domain has been identified that appears in variable copy number in bacterial genes that are usually in the vicinity of a putative Fe3+ siderophore transporter. This domain has been denoted NEAT for near transporter.
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PRESTA: associating promoter sequences with information on gene expression
Václav Mach Genome Biology 2002, 3:research0050-research0050.7 (21 August 2002)
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Editor’s summary
The software tool PRESTA (PRomoter EST Association) is designed for efficient recovery of characterized and partially verified promoters from GenBank and EMBL libraries. The PRESTA algorithm demonstrates the principle of promoter verification by mapping EST 5' ends.
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Human members of the eukaryotic protein kinase family
Mitch Kostich, Jessie English, Vincent Madison, Ferdous Gheyas, Luquan Wang, Ping Qiu, Jonathan Greene, Thomas M Laz Genome Biology 2002, 3:research0043-research0043.12 (22 August 2002)
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Editor’s summary
Publicly available genetic sequence data were searched for human sequences that potentially represent protein kinases, important players in virtually every signaling pathway. After removal of duplicates, splice variants and pseudogenes, this search yielded 510 sequences with recognizable similarity to eukaryotic protein kinases.
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Computational discovery of sense-antisense transcription in the human and mouse genomes
Jay Shendure, George M Church Genome Biology 2002, 3:research0044-research0044.14 (22 August 2002)
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Editor’s summary
Overlapping but oppositely oriented transcripts have the potential to form sense-antisense perfect double-stranded (ds) RNA duplexes. A bioinformatics approach has identified over 217 candidate overlapping transcriptional units, bringing the total number of predicted and validated examples of overlapping but oppositely oriented transcripts to over 300.
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Design and implementation of microarray gene expression markup language (MAGE-ML)
Paul T Spellman, Michael Miller, Jason Stewart, Charles Troup, Ugis Sarkans, Steve Chervitz, Derek Bernhart, Gavin Sherlock, Catherine Ball, Marc Lepage, Marcin Swiatek, WL Marks, Jason Goncalves, Scott Markel, Daniel Iordan, Mohammadreza Shojatalab, Angel Pizarro, Joe White, Robert Hubley, Eric Deutsch, Martin Senger, Bruce J Aronow, Alan Robinson, Doug Bassett, Christian J Stoeckert, Alvis Brazma Genome Biology 2002, 3:research0046-research0046.9 (23 August 2002)
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Editor’s summary
Meaningful exchange of microarray data is currently difficult because it is rare that published data provide sufficient information depth or are even in the same format from one publication to another. MAGE will help microarray data producers and users to exchange information by providing a common platform for data exchange, and MAGE-STK will make the adoption of MAGE easier.
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Fine mapping in tomato using microsynteny with the Arabidopsis genome: the Diageotropica (Dgt) locus
KwangChul Oh, Kristine Hardeman, Maria G Ivanchenko, Mary Ellard-Ivey, Andreas Nebenführ, TJ White, Terri L Lomax Genome Biology 2002, 3:research0049-research0049.11 (28 August 2002)
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The Arabidopsis thaliana genome sequence provides a catalog of reference genes applicable to comparative microsynteny analysis of other species, facilitating map-based cloning in economically important crops. Such an analysis was applied to the tomato expressed sequence tag (EST) database to expedite high-resolution mapping of the Diageotropica gene within the distal end of chromosome 1 in tomato.
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Gene-expression profile comparisons distinguish seven organs of maize
Yangrae Cho, John Fernandes, Soo-Hwan Kim, Virginia Walbot Genome Biology 2002, 3:research0045-research0045.16 (29 August 2002)
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| F1000 Biology
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Editor’s summary
Relative mRNA levels from maize organs have been quantified by hybridization to maize arrays fabricated with 5,376 unique expressed sequence tag clones. mRNAs from embryos, three vegetative organs (leaf blades, leaf sheaths and roots), husk leaves and two types of floral organs (immature ears and silks) reveal that a majority of genes expressed in diverse organs with little difference in transcript levels.
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Dynamic diversity of the tryptophan pathway in chlamydiae: reductive evolution and a novel operon for tryptophan recapture
Gary Xie, Carol A Bonner, Roy A Jensen Genome Biology 2002, 3:research0051-research0051.17 (29 August 2002)
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The factors that accommodate the transition of different chlamydial species to the persistent state of pathogenesis include marked differences in the strategied deplyed to obtain tryptophan from host resources. Chlamydia psittaci appears to have a novel mechanism for intercepting an early intermediate of tryptophan catabolism and recycling it back to tryptophan.
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A new non-linear normalization method for reducing variability in DNA microarray experiments
Christopher Workman, Lars Jensen, Hanne Jarmer, Randy Berka, Laurent Gautier, Henrik Nielser, Hans-Henrik Saxild, Claus Nielsen, Søren Brunak, Steen Knudsen Genome Biology 2002, 3:research0048-research0048.16 (30 August 2002)
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Editor’s summary
A simple and robust non-linear method is presented for normalization using array signal distribution analysis and cubic splines. Both the regression and spline-based methods described performed better than existing linear methods when assessed on the variability of replicate arrays
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