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Genome annotation

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https://www.readbyqxmd.com/read/29457794/recon3d-enables-a-three-dimensional-view-of-gene-variation-in-human-metabolism
#1
Elizabeth Brunk, Swagatika Sahoo, Daniel C Zielinski, Ali Altunkaya, Andreas Dräger, Nathan Mih, Francesco Gatto, Avlant Nilsson, German Andres Preciat Gonzalez, Maike Kathrin Aurich, Andreas Prlić, Anand Sastry, Anna D Danielsdottir, Almut Heinken, Alberto Noronha, Peter W Rose, Stephen K Burley, Ronan M T Fleming, Jens Nielsen, Ines Thiele, Bernhard O Palsson
Genome-scale network reconstructions have helped uncover the molecular basis of metabolism. Here we present Recon3D, a computational resource that includes three-dimensional (3D) metabolite and protein structure data and enables integrated analyses of metabolic functions in humans. We use Recon3D to functionally characterize mutations associated with disease, and identify metabolic response signatures that are caused by exposure to certain drugs. Recon3D represents the most comprehensive human metabolic network model to date, accounting for 3,288 open reading frames (representing 17% of functionally annotated human genes), 13,543 metabolic reactions involving 4,140 unique metabolites, and 12,890 protein structures...
February 19, 2018: Nature Biotechnology
https://www.readbyqxmd.com/read/29457793/identifying-the-favored-mutation-in-a-positive-selective-sweep
#2
Ali Akbari, Joseph J Vitti, Arya Iranmehr, Mehrdad Bakhtiari, Pardis C Sabeti, Siavash Mirarab, Vineet Bafna
Most approaches that capture signatures of selective sweeps in population genomics data do not identify the specific mutation favored by selection. We present iSAFE (for "integrated selection of allele favored by evolution"), a method that enables researchers to accurately pinpoint the favored mutation in a large region (∼5 Mbp) by using a statistic derived solely from population genetics signals. iSAFE does not require knowledge of demography, the phenotype under selection, or functional annotations of mutations...
February 19, 2018: Nature Methods
https://www.readbyqxmd.com/read/29455459/first-draft-genome-of-an-iconic-clownfish-species-amphiprion-frenatus
#3
Anna Marcionetti, Victor Rossier, Joris A M Bertrand, Glenn Litsios, Nicolas Salamin
Clownfishes (or anemonefishes) form an iconic group of coral reef fishes, principally known for their mutualistic interaction with sea anemones. They are characterized by particular life-history traits, such as a complex social structure and mating system involving sequential hermaphroditism, coupled with an exceptionally long lifespan. Additionally, clownfishes are considered to be one of the rare group to have experienced an adaptive radiation in the marine environment. Here, we assembled and annotated the first genome of a clownfish species, the tomato clownfish (Amphiprion frenatus)...
February 17, 2018: Molecular Ecology Resources
https://www.readbyqxmd.com/read/29454982/improved-genomic-resources-and-new-bioinformatic-workflow-for-the-carcinogenic-parasite-clonorchis-sinensis-biotechnological-implications
#4
REVIEW
Daxi Wang, Pasi K Korhonen, Robin B Gasser, Neil D Young
Clonorchis sinensis (family Opisthorchiidae) is an important foodborne parasite that has a major socioeconomic impact on ~35 million people predominantly in China, Vietnam, Korea and the Russian Far East. In humans, infection with C. sinensis causes clonorchiasis, a complex hepatobiliary disease that can induce cholangiocarcinoma (CCA), a malignant cancer of the bile ducts. Central to understanding the epidemiology of this disease is knowledge of genetic variation within and among populations of this parasite...
February 15, 2018: Biotechnology Advances
https://www.readbyqxmd.com/read/29454809/the-hidden-lipoproteome-of-staphylococcus-aureus
#5
Anica Graf, Richard J Lewis, Stephan Fuchs, Martin Pagels, Susanne Engelmann, Katharina Riedel, Jan Pané-Farré
Lipoproteins are attached to the outer leaflet of the membrane by a di- or tri-acylglyceryl moiety and are thus positioned in the membrane-cell wall interface. Consequently, lipoproteins are involved in many surface associated functions, including cell wall synthesis, electron transport, uptake of nutrients, surface stress response, signal transduction, and they represent a reservoir of bacterial virulence factors. Inspection of 123 annotated Staphylococcus aureus genome sequences in the public domain revealed that this organism devotes about 2-3% of its coding capacity to lipoproteins, corresponding to about 70 lipoproteins per genome...
February 1, 2018: International Journal of Medical Microbiology: IJMM
https://www.readbyqxmd.com/read/29454313/structrnafinder-an-automated-pipeline-and-web-server-for-rna-families-prediction
#6
Raúl Arias-Carrasco, Yessenia Vásquez-Morán, Helder I Nakaya, Vinicius Maracaja-Coutinho
BACKGROUND: The function of many noncoding RNAs (ncRNAs) depend upon their secondary structures. Over the last decades, several methodologies have been developed to predict such structures or to use them to functionally annotate RNAs into RNA families. However, to fully perform this analysis, researchers should utilize multiple tools, which require the constant parsing and processing of several intermediate files. This makes the large-scale prediction and annotation of RNAs a daunting task even to researchers with good computational or bioinformatics skills...
February 17, 2018: BMC Bioinformatics
https://www.readbyqxmd.com/read/29454054/genomic-perspectives-of-spider-silk-genes-through-target-capture-sequencing-conservation-of-stabilization-mechanisms-and-homology-based-structural-models-of-spidroin-terminal-regions
#7
Matthew A Collin, Thomas H Clarke, Nadia A Ayoub, Cheryl Y Hayashi
A powerful system for studying protein aggregation, particularly rapid self-assembly, is spider silk. Spider silks are proteinaceous and silk proteins are synthesized and stored within silk glands as liquid dope. As needed, liquid dope is near-instantaneously transformed into solid fibers or viscous adhesives. The dominant constituents of silks are spidroins (spider fibroins) and their terminal domains are vital for the tight control of silk self-assembly. To better understand spidroin termini, we used target capture and deep sequencing to identify spidroin gene sequences from six species representing the araneoid families of Araneidae, Nephilidae, and Theridiidae...
February 14, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29453633/comparative-analysis-of-the-mitochondrial-genome-of-the-fungus-colletotrichum-lindemuthianum-the-causal-agent-of-anthracnose-in-common-beans
#8
Casley Borges de Queiroz, Mateus Ferreira Santana, Pedro M Pereira Vidigal, Marisa Vieira de Queiroz
Fungi of the genus Colletotrichum are economically important and are used as models in plant-pathogen interaction studies. In this study, the complete mitochondrial genomes of two Colletotrichum lindemuthianum isolates were sequenced and compared with the mitochondrial genomes of seven species of Colletotrichum. The mitochondrial genome of C. lindemuthianum is a typical circular molecule 37,446 bp (isolate 89 A 2 2-3) and 37,440 bp (isolate 83.501) in length. The difference of six nucleotides between the two genomes is the result of a deletion in the ribosomal protein S3 (rps3) gene in the 83...
February 16, 2018: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/29453418/periodic-reanalysis-of-whole-genome-sequencing-data-enhances-the-diagnostic-advantage-over-standard-clinical-genetic-testing
#9
Gregory Costain, Rebekah Jobling, Susan Walker, Miriam S Reuter, Meaghan Snell, Sarah Bowdin, Ronald D Cohn, Lucie Dupuis, Stacy Hewson, Saadet Mercimek-Andrews, Cheryl Shuman, Neal Sondheimer, Rosanna Weksberg, Grace Yoon, M Stephen Meyn, Dimitri J Stavropoulos, Stephen W Scherer, Roberto Mendoza-Londono, Christian R Marshall
Whole-genome sequencing (WGS) as a first-tier diagnostic test could transform medical genetic assessments, but there are limited data regarding its clinical use. We previously showed that WGS could feasibly be deployed as a single molecular test capable of a higher diagnostic rate than current practices, in a prospectively recruited cohort of 100 children meeting criteria for chromosomal microarray analysis. In this study, we report on the added diagnostic yield with re-annotation and reanalysis of these WGS data ~2 years later...
February 16, 2018: European Journal of Human Genetics: EJHG
https://www.readbyqxmd.com/read/29452392/pbrit-gene-prioritization-by-correlating-functional-and-phenotypic-annotations-through-integrative-data-fusion
#10
Ajay Anand Kumar, Lut Van Laer, Maaike Alaerts, Amin Ardeshirdavani, Yves Moreau, Kris Laukens, Bart Loeys, Geert Vandeweyer, Inanc Birol
Motivation: Computational gene prioritization can aid in disease gene identification. Here, we propose pBRIT (prioritization using Bayesian Ridge regression and Information Theoretic model), a novel adaptive and scalable prioritization tool, integrating Pubmed abstracts, Gene Ontology, Sequence similarities, Mammalian and Human Phenotype Ontology, Pathway, Interactions, Disease Ontology, Gene Association database and Human Genome Epidemiology database, into the prediction model.We explore and address effects of sparsity and inter-feature dependencies within annotation sources, and the impact of bias towards specific annotations...
February 14, 2018: Bioinformatics
https://www.readbyqxmd.com/read/29451908/cas9-mediated-excision-of-proximal-dnasei-h3k4me3-signatures-confers-robust-silencing-of-microrna-and-long-non-coding-rna-genes
#11
Harshavardhan Janga, Marina Aznaourova, Fabian Boldt, Katrin Damm, Arnold Grünweller, Leon N Schulte
CRISPR/Cas9-based approaches have greatly facilitated targeted genomic deletions. Contrary to coding genes however, which can be functionally knocked out by frame-shift mutagenesis, non-coding RNA (ncRNA) gene knockouts have remained challenging. Here we present a universal ncRNA knockout approach guided by epigenetic hallmarks, which enables robust gene silencing even in provisionally annotated gene loci. We build on previous work reporting the presence of overlapping histone H3 lysine 4 tri-methylation (H3K4me3) and DNaseI hypersensitivity sites around the transcriptional start sites of most genes...
2018: PloS One
https://www.readbyqxmd.com/read/29451365/the-genome-of-the-freshwater-monogonont-rotifer-brachionus-calyciflorus
#12
Hui-Su Kim, Bo-Young Lee, Jeonghoon Han, Chang-Bum Jeong, Dae-Sik Hwang, Min-Chul Lee, Hye-Min Kang, Duck-Hyun Kim, Hee-Jin Kim, Spiros Papakostas, Steven A J Declerck, Ik-Young Choi, Atsushi Hagiwara, Heum Gi Park, Jae-Seong Lee
Monogononta is the most speciose class of rotifers, with more than 2000 species. The monogonont genus Brachionus is widely distributed at a global scale, and a few of its species are commonly used as ecological and evolutionary models to address questions related to aquatic ecology, cryptic speciation, evolutionary ecology, the evolution of sex, and ecotoxicology. With the importance of Brachionus species in many areas of research, it is remarkable that the genome has not been characterized. This study aims to address this lacuna by presenting, for the first time, the whole genome assembly of the freshwater species Brachionus calyciflorus...
February 16, 2018: Molecular Ecology Resources
https://www.readbyqxmd.com/read/29450146/novel-proteins-from-proteomic-analysis-of-the-trunk-disease-fungus-lasiodiplodia-theobromae-botryosphaeriaceae
#13
Carla C Uranga, Majid Ghassemian, Rufina Hernández-Martínez
Many basic science questions remain regarding protein functions in the pathogen: host interaction, especially in the trunk disease fungi family, the Botryosphaeriaceae, which are a global problem for economically important plants, especially fruiting trees. Proteomics is a highly useful technology for studying protein expression and for discovering novel proteins in unsequenced and poorly annotated organisms. Current fungal proteomics approaches involve 2D SDS-PAGE and extensive, complex, protein extraction methodologies...
June 2017: Biochimie Open
https://www.readbyqxmd.com/read/29449878/complete-chloroplast-genome-of-the-medicinal-plant-amomum-compactum-gene-organization-comparative-analysis-and-phylogenetic-relationships-within-zingiberales
#14
Ming-Li Wu, Qing Li, Jiang Xu, Xi-Wen Li
Background: Amomum compactum is one of the basic species of the traditional herbal medicine amomi fructus rotundus, with great pharmacology effect. The system position of A. compactum is not clear yet, and the introduction of this plant has been hindered by many plant diseases. However, the correlational molecular studies are relatively scarce. Methods: The total chloroplast (cp) DNA was extracted according to previous studies, and then sequenced by 454 GS FLX Titanium platform...
2018: Chinese Medicine
https://www.readbyqxmd.com/read/29449860/adaptive-genetic-divergence-despite-significant-isolation-by-distance-in-populations-of-taiwan-cow-tail-fir-keteleeria-davidiana-var-formosana
#15
Kai-Ming Shih, Chung-Te Chang, Jeng-Der Chung, Yu-Chung Chiang, Shih-Ying Hwang
Double digest restriction site-associated DNA sequencing (ddRADseq) is a tool for delivering genome-wide single nucleotide polymorphism (SNP) markers for non-model organisms useful in resolving fine-scale population structure and detecting signatures of selection. This study performs population genetic analysis, based on ddRADseq data, of a coniferous species, Keteleeria davidiana var. formosana , disjunctly distributed in northern and southern Taiwan, for investigation of population adaptive divergence in response to environmental heterogeneity...
2018: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29449854/genome-wide-characterization-of-bhlh-genes-in-grape-and-analysis-of-their-potential-relevance-to-abiotic-stress-tolerance-and-secondary-metabolite-biosynthesis
#16
Pengfei Wang, Ling Su, Huanhuan Gao, Xilong Jiang, Xinying Wu, Yi Li, Qianqian Zhang, Yongmei Wang, Fengshan Ren
Basic helix-loop-helix (bHLH) transcription factors are involved in many abiotic stress responses as well as flavonol and anthocyanin biosynthesis. In grapes ( Vitis vinifera L.), flavonols including anthocyanins and condensed tannins are most abundant in the skins of the berries. Flavonols are important phytochemicals for viticulture and enology, but grape bHLH genes have rarely been examined. We identified 94 grape bHLH genes in a genome-wide analysis and performed Nr and GO function analyses for these genes...
2018: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29449392/closed-genome-sequence-of-phytopathogen-biocontrol-agent-bacillus-velezensis-strain-agvl-005-isolated-from-soybean
#17
Victor Satler Pylro, Armando Cavalcante Franco Dias, Fernando Dini Andreote, Daniel Kumazawa Morais, Alessandro de Mello Varani, Cristiane Cipolla Fasanella Andreote, Eduardo Roberto de Almeida Bernardo, Tiago Zucchi
We report here the closed and near-complete genome sequence and annotation of Bacillus velezensis strain AGVL-005, a bacterium isolated from soybean seeds in Brazil and used for phytopathogen biocontrol.
February 15, 2018: Genome Announcements
https://www.readbyqxmd.com/read/29449385/complete-genome-sequences-of-enterobacter-cancerogenus-cr-eb1-and-enterococcus-sp-strain-cr-ec1-isolated-from-the-larval-gut-of-the-greater-wax-moth-galleria-mellonella
#18
Joon-Hui Chung, Haeyoung Jeong, Choong-Min Ryu
Enterobacter cancerogenus CR-Eb1 and Enterococcus sp. CR-Ec1 were isolated from the larval gut of Galleria mellonella , the greater wax moth. Here, we report the completed and annotated genome sequences of insect gut-dwelling bacteria.
February 15, 2018: Genome Announcements
https://www.readbyqxmd.com/read/29449380/annotated-genome-sequences-of-16-lineage-4-mycobacterium-tuberculosis-strains-from-guatemala
#19
Joseph W Saelens, Dalia Lau-Bonilla, Anneliese Moller, Ana M Xet-Mull, Narda Medina, Brenda Guzmán, Maylena Calderón, Raúl Herrera, Jason E Stout, Eduardo Arathoon, Blanca Samayoa, David M Tobin
Whole-genome sequencing has resulted in new insights into the phylogeography of Mycobacterium tuberculosis However, only limited genomic data are available from M. tuberculosis strains in Guatemala. Here we report 16 complete genomes of clinical strains belonging to the Euro-American lineage 4, the most common lineage found in Guatemala and Central America.
February 15, 2018: Genome Announcements
https://www.readbyqxmd.com/read/29449107/a-model-for-manganese-interaction-with-deinococcus-radiodurans-proteome-network-involved-in-ros-response-and-defense
#20
M Peana, C T Chasapis, G Simula, S Medici, M A Zoroddu
A complex network of regulatory proteins takes part in the mechanism underlying the radioresistance of Deinoccocus radiodurans bacterium (DR). The interaction of Mn(II) ions with DR-proteins and peptides seems to be responsible for proteins protection from oxidative damage induced by Reactive Oxygen Species during irradiation. In the present work we describe a combined approach of bioinformatic strategies based on structural data and annotation to predict the Mn(II)-binding proteins encoded by the genome of DR and, in parallel, the same predictions for other bacteria were performed; the comparison revealed that, in most of the cases, the content of Mn(II)-binding proteins is significantly higher in radioresistant than in radiosensitive bacteria...
February 7, 2018: Journal of Trace Elements in Medicine and Biology
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