Institution
J. Craig Venter Institute
Nonprofit•La Jolla, California, United States•
About: J. Craig Venter Institute is a nonprofit organization based out in La Jolla, California, United States. It is known for research contribution in the topics: Genome & Gene. The organization has 1268 authors who have published 2300 publications receiving 304083 citations. The organization is also known as: JCVI & The Institute for Genomic Research.
Topics: Genome, Gene, Genomics, Population, Microbiome
Papers published on a yearly basis
Papers
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TL;DR: It is shown that flavin molecules secreted by Shewanella oneidensis MR-1 enhance the ability of its outer-membrane c-type cytochromes (OM c-Cyts) to transport electrons as redox cofactors, but not free-form flavins, which suggests that the flavin/OM c -Cyts interaction regulates the extent of extracellular electron transport coupled with intracellular metabolic activity.
Abstract: Extracellular redox-active compounds, flavins and other quinones, have been hypothesized to play a major role in the delivery of electrons from cellular metabolic systems to extracellular insoluble substrates by a diffusion-based shuttling two-electron-transfer mechanism. Here we show that flavin molecules secreted by Shewanella oneidensis MR-1 enhance the ability of its outer-membrane c-type cytochromes (OM c-Cyts) to transport electrons as redox cofactors, but not free-form flavins. Whole-cell differential pulse voltammetry revealed that the redox potential of flavin was reversibly shifted more than 100 mV in a positive direction, in good agreement with increasing microbial current generation. Importantly, this flavin/OM c-Cyts interaction was found to facilitate a one-electron redox reaction via a semiquinone, resulting in a 103- to 105-fold faster reaction rate than that of free flavin. These results are not consistent with previously proposed redox-shuttling mechanisms but suggest that the flavin/OM c-Cyts interaction regulates the extent of extracellular electron transport coupled with intracellular metabolic activity.
364 citations
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Agriculture and Agri-Food Canada1, Carleton University2, Sainsbury Laboratory3, Michigan State University4, University of Utah5, Goethe University Frankfurt6, Colorado State University7, Newcastle University8, J. Craig Venter Institute9, University of Toulouse10, Scottish Association for Marine Science11, Wageningen University and Research Centre12, University of Aberdeen13, Broad Institute14, Mahidol University15, Bowling Green State University16, University of California, Riverside17, Virginia Tech18, University of Provence19, Agricultural Research Service20, SRI International21
TL;DR: Access to the P. ultimum genome has revealed not only core pathogenic mechanisms within the oomycetes but also lineage-specific genes associated with the alternative virulence and lifestyles found within the pythiaceous lineages compared to the Peronosporaceae.
Abstract: Background
Pythium ultimum is a ubiquitous oomycete plant pathogen responsible for a variety of diseases on a broad range of crop and ornamental species.
364 citations
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TL;DR: Bacterial symbionts of animals may contain antibiotics that are particularly suitable for development into therapeutics; one such compound, darobactin, is active against important Gram-negative pathogens both in vitro and in animal models of infection.
Abstract: The current need for novel antibiotics is especially acute for drug-resistant Gram-negative pathogens1,2. These microorganisms have a highly restrictive permeability barrier, which limits the penetration of most compounds3,4. As a result, the last class of antibiotics that acted against Gram-negative bacteria was developed in the 1960s2. We reason that useful compounds can be found in bacteria that share similar requirements for antibiotics with humans, and focus on Photorhabdus symbionts of entomopathogenic nematode microbiomes. Here we report a new antibiotic that we name darobactin, which was obtained using a screen of Photorhabdus isolates. Darobactin is coded by a silent operon with little production under laboratory conditions, and is ribosomally synthesized. Darobactin has an unusual structure with two fused rings that form post-translationally. The compound is active against important Gram-negative pathogens both in vitro and in animal models of infection. Mutants that are resistant to darobactin map to BamA, an essential chaperone and translocator that folds outer membrane proteins. Our study suggests that bacterial symbionts of animals contain antibiotics that are particularly suitable for development into therapeutics.
364 citations
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United States Department of Agriculture1, Commonwealth Scientific and Industrial Research Organisation2, Nanjing Agricultural University3, Texas A&M University4, University of Maryland, Baltimore5, J. Craig Venter Institute6, Bayer7, Monsanto8, University of Georgia9, North Carolina State University10, Texas Tech University11, University of California, Davis12, Peking University13, Academy of Sciences of Uzbekistan14, University of Agricultural Sciences, Dharwad15, Indian Agricultural Research Institute16, National Institute for Biotechnology and Genetic Engineering17, Iowa State University18
TL;DR: Despite rapidly decreasing costs and innovative technologies, sequencing of angiosperm genomes is not yet undertaken lightly and the difficulties of sequencing and assembling complex genomes de novo are not yet addressed.
Abstract: Despite rapidly decreasing costs and innovative technologies, sequencing of angiosperm genomes is not yet undertaken lightly. Generating larger amounts of sequence data more quickly does not address the difficulties of sequencing and assembling complex genomes de novo. The cotton ( Gossypium spp.)
363 citations
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TL;DR: Counter to clinical belief, healthy urine is not sterile and the healthy urine microbiome is characterized by a preponderance of Lactobacillales in women and Corynebacterium in men.
Abstract: Clinical dogma is that healthy urine is sterile and the presence of bacteria with an inflammatory response is indicative of urinary tract infection (UTI). Asymptomatic bacteriuria (ABU) represents the state in which bacteria are present but the inflammatory response is negligible. Differentiating ABU from UTI is diagnostically challenging, but critical because overtreatment of ABU can perpetuate antimicrobial resistance while undertreatment of UTI can result in increased morbidity and mortality. In this study, we describe key characteristics of the healthy and ABU urine microbiomes utilizing 16S rRNA gene (16S rDNA) sequencing and metaproteomics, with the future goal of utilizing this information to personalize the treatment of UTI based on key individual characteristics. A cross-sectional study of 26 healthy controls and 27 healthy subjects at risk for ABU due to spinal cord injury-related neuropathic bladder (NB) was conducted. Of the 27 subjects with NB, 8 voided normally, 8 utilized intermittent catheterization, and 11 utilized indwelling Foley urethral catheterization for bladder drainage. Urine was obtained by clean catch in voiders, or directly from the catheter in subjects utilizing catheters. Urinalysis, urine culture and 16S rDNA sequencing were performed on all samples, with metaproteomic analysis performed on a subsample. A total of 589454 quality-filtered 16S rDNA sequence reads were processed through a NextGen 16S rDNA analysis pipeline. Urine microbiomes differ by normal bladder function vs. NB, gender, type of bladder catheter utilized, and duration of NB. The top ten bacterial taxa showing the most relative abundance and change among samples were Lactobacillales, Enterobacteriales, Actinomycetales, Bacillales, Clostridiales, Bacteroidales, Burkholderiales, Pseudomonadales, Bifidobacteriales and Coriobacteriales. Metaproteomics confirmed the 16S rDNA results, and functional human protein-pathogen interactions were noted in subjects where host defenses were initiated. Counter to clinical belief, healthy urine is not sterile. The healthy urine microbiome is characterized by a preponderance of Lactobacillales in women and Corynebacterium in men. The presence and duration of NB and method of urinary catheterization alter the healthy urine microbiome. An integrated approach of 16S rDNA sequencing with metaproteomics improves our understanding of healthy urine and facilitates a more personalized approach to prevention and treatment of infection.
363 citations
Authors
Showing all 1274 results
Name | H-index | Papers | Citations |
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John R. Yates | 177 | 1036 | 129029 |
Anders M. Dale | 156 | 823 | 133891 |
Ronald W. Davis | 155 | 644 | 151276 |
Steven L. Salzberg | 147 | 407 | 231756 |
Mark Raymond Adams | 147 | 1187 | 135038 |
Nicholas J. Schork | 125 | 587 | 62131 |
William R. Jacobs | 118 | 490 | 48638 |
Ian T. Paulsen | 112 | 354 | 69460 |
Michael B. Brenner | 111 | 393 | 44771 |
Kenneth H. Nealson | 108 | 483 | 51100 |
Claire M. Fraser | 108 | 352 | 76292 |
Stephen L. Hoffman | 104 | 458 | 38597 |
Michael J. Brownstein | 102 | 274 | 47929 |
Amalio Telenti | 102 | 421 | 40509 |
John Quackenbush | 99 | 427 | 67029 |