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High-Throughput Sequencing

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https://www.readbyqxmd.com/read/29334207/screening-for-causative-mutations-of-major-prolificacy-genes-in-iranian-fat-tailed-sheep
#1
Ramin Abdoli, Seyed Ziaeddin Mirhoseini, Navid Ghavi Hossein-Zadeh, Pouya Zamani
Background: The presence of different missense mutations in sheep breeds have shown that the bone morphogenetic protein receptor 1B (BMPR1B), bone morphogenetic protein 15 (BMP15) and growth differentiation factor 9 (GDF9) genes play a vital role in ovulation rate and prolificacy in ewes. Therefore, the present study aims to investigate BMPR1B, BMP15 and GDF9 gene mutations in prolific ewes of Iranian fat-tailed Lori-Bakhtiari sheep. MATERIALS AND METHODS: In the present experimental study, genomic DNA was extracted from whole blood of 10 prolific Lori-Bakhtiari ewes with at least two twinning records in the first four parities to identify point mutations of the BMPR1B, BMP15 and GDF9 genes, using DNA sequencing...
April 2018: International Journal of Fertility & Sterility
https://www.readbyqxmd.com/read/29334134/a-comprehensive-next-generation-sequencing-assay-for-the-diagnosis-of-epidermolysis-bullosa
#2
Anne W Lucky, Neha Dagaonkar, Karen Lammers, Ammar Husami, Diane Kissell, Kejian Zhang
BACKGROUND: Historically, diagnosis of epidermolysis bullosa has required skin biopsies for electron microscopy, direct immunofluorescence to determine which gene(s) to choose for genetic testing, or both. METHODS: To avoid these invasive tests, we developed a high-throughput next-generation sequencing (NGS)-based diagnostic assay called EBSEQ that allows simultaneous detection of mutations in 21 genes with known roles in epidermolysis bullosa pathogenicity. Mutations are confirmed with traditional Sanger sequencing...
January 15, 2018: Pediatric Dermatology
https://www.readbyqxmd.com/read/29332191/genome-wide-characterization-of-differentially-expressed-genes-provides-insights-into-regulatory-network-of-heat-stress-response-in-radish-raphanus-sativus-l
#3
Ronghua Wang, Yi Mei, Liang Xu, Xianwen Zhu, Yan Wang, Jun Guo, Liwang Liu
Heat stress (HS) causes detrimental effects on plant morphology, physiology, and biochemistry that lead to drastic reduction in plant biomass production and economic yield worldwide. To date, little is known about HS-responsive genes involved in thermotolerance mechanism in radish. In this study, a total of 6600 differentially expressed genes (DEGs) from the control and Heat24 cDNA libraries of radish were isolated by high-throughput sequencing. With Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis, some genes including MAPK, DREB, ERF, AP2, GST, Hsf, and Hsp were predominantly assigned in signal transductions, metabolic pathways, and biosynthesis and abiotic stress-responsive pathways...
January 13, 2018: Functional & Integrative Genomics
https://www.readbyqxmd.com/read/29332167/non-coding-rnas-and-plant-male-sterility-current-knowledge-and-future-prospects
#4
REVIEW
Ankita Mishra, Abhishek Bohra
Latest outcomes assign functional role to non-coding (nc) RNA molecules in regulatory networks that confer male sterility to plants. Male sterility in plants offers great opportunity for improving crop performance through application of hybrid technology. In this respect, cytoplasmic male sterility (CMS) and sterility induced by photoperiod (PGMS)/temperature (TGMS) have greatly facilitated development of high-yielding hybrids in crops. Participation of non-coding (nc) RNA molecules in plant reproductive development is increasingly becoming evident...
January 13, 2018: Plant Cell Reports
https://www.readbyqxmd.com/read/29331826/pathway-and-mechanism-of-nitrogen-transformation-during-composting-functional-enzymes-and-genes-under-different-concentrations-of-pvp-agnps
#5
Guangming Zeng, Lihua Zhang, Haoran Dong, Yaoning Chen, Jiachao Zhang, Yuan Zhu, Yujie Yuan, Yankai Xie, Wei Fang
Polyvinylpyrrolidone coated silver nanoparticles (PVP-AgNPs) were applied at different concentrations to reduce total nitrogen (TN) losses and the mechanisms of nitrogen bio-transformation were investigated in terms of the nitrogen functional enzymes and genes. Results showed that mineral N in pile 3 which was treated with AgNPs at a concentration of 10 mg/kg compost was the highest (6.58 g/kg dry weight (DW) compost) and the TN loss (47.07%) was the lowest at the end of composting. Correlation analysis indicated that TN loss was significantly correlated with amoA abundance...
December 29, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/29331726/impact-of-the-start-up-process-on-the-microbial-communities-in-biocathodes-for-electrosynthesis
#6
Raúl Mateos, Ana Sotres, Raúl M Alonso, Adrián Escapa, Antonio Morán
This study seeks to understand how the bacterial communities that develop on biocathodes are influenced by inocula diversity and electrode potential during start-up. Two different inocula are used: one from a highly diverse environment (river mud) and the other from a low diverse milieu (anaerobic digestion). In addition, both inocula were subjected to two different polarising voltages: oxidative (+0.2 V vs. Ag/AgCl) and reductive (-0.8 V vs. Ag/AgCl). Bacterial communities were analysed by means of high throughput sequencing...
January 7, 2018: Bioelectrochemistry
https://www.readbyqxmd.com/read/29331671/the-molecular-characteristics-of-avian-influenza-viruses-h9n2-derived-from-air-samples-in-live-poultry-markets
#7
Yanheng Wu, Jinsi Lin, Shuhuan Yang, Ying Xie, Man Wang, Xueqin Chen, Yayang Zhu, Le Luo, Wuyang Shi
OBJECTIVE: To study the molecular characteristics of H9N2-subtype avian influenza viruses (AIVs) isolated from air samples collected in live poultry markets (LPMs) and explore their sequence identities with AIVs that caused human infection. METHODS: Weekly surveillance of H9N2-subtype AIVs in the air of LPMs was conducted from 2015 to 2016. H9-positive samples were isolated from chicken embryos. Whole genome sequences of the isolated AIVs were obtained through high-throughput sequencing...
January 10, 2018: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/29331515/mhc-class-i-loaded-ligands-from-breast-cancer-cell-lines-a-potential-hla-i-typed-antigen-collection
#8
Dmitri V Rozanov, Nikita D Rozanov, Kami Chiotti, Ashok Reddy, Phillip A Wilmarth, Larry L David, Seung W Cha, Sunghee Woo, Pavel Pevzner, Vineet Bafna, Gregory G Burrows, Juha K Rantala, Trevor Levin, Pavana Anur, Katie Johnson-Camacho, Shaadi Tabatabaei, Daniel J Munson, Tullia C Bruno, Jill E Slansky, John W Kappler, Naoto Hirano, Sebastian Boegel, Bernard A Fox, Colt Egelston, Diana L Simons, Grecia Jimenez, Peter P Lee, Joe W Gray, Paul T Spellman
To build a catalog of peptides presented by breast cancer cells, we undertook systematic MHC class I immunoprecipitation followed by elution of MHC class I-loaded peptides in breast cancer cells. We determined the sequence of 3196 MHC class I ligands representing 1921 proteins from a panel of 20 breast cancer cell lines. After removing duplicate peptides, i.e., the same peptide eluted from more than one cell line, the total number of unique peptides was 2740. Of the unique peptides eluted, more than 1750 had been previously identified, and of these, sixteen have been shown to be immunogenic...
January 10, 2018: Journal of Proteomics
https://www.readbyqxmd.com/read/29330284/novel-intergenically-spliced-chimera-nfatc3-pla2g15-is-associated-with-aggressive-t-all-biology-and-outcome
#9
Jonathan Bond, Christine Tran Quang, Guillaume Hypolite, Mohamed Belhocine, Aurélie Bergon, Gaëlle Cordonnier, Jacques Ghysdael, Elizabeth Macintyre, Nicolas Boissel, Salvatore Spicuglia, Vahid Asnafi
Leukemias are frequently characterized by the expression of oncogenic fusion chimeras that normally arise due to chromosomal rearrangements. Intergenically-spliced chimeric RNAs (ISCs) are transcribed in the absence of structural genomic changes, and aberrant ISC expression is now recognized as a potential driver of cancer. To better understand these potential oncogenic drivers, high-throughput RNA-sequencing (RNA-seq) was performed on T-acute lymphoblastic leukemia (T-ALL) patient specimens (n=24) and candidate T-ALL-related ISCs were identified (n=55; a median of 4 per patient)...
January 12, 2018: Molecular Cancer Research: MCR
https://www.readbyqxmd.com/read/29330186/effect-of-plasmid-design-and-type-of-integration-event-on-recombinant-protein-expression-in-pichia-pastoris
#10
Thomas Vogl, Leigh Gebbie, Robin W Palfreyman, Robert Speight
Pichia pastoris (syn. Komagataella phaffii) is one of the most common eukaryotic expression systems for heterologous protein production. Expression cassettes are typically integrated in the genome to obtain stable expression strains. In contrast to Saccharomyces cerevisiae, where short overhangs are sufficient to target highly specific integration, long overhangs are more efficient in P. pastoris and ectopic integration of foreign DNA can occur. Here, we aimed to elucidate the influence of ectopic integration by high throughput screening of >700 transformants and whole genome sequencing of 27 transformants...
January 12, 2018: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/29330168/mrb7260-is-essential-for-productive-protein-rna-interactions-within-the-rna-editing-substrate-binding-complex-during-trypanosome-rna-editing
#11
Natalie M McAdams, Rachel M Simpson, Runpu Chen, Yijun Sun, Laurie Read
The trypanosome RNA Editing Substrate Binding Complex (RESC) acts as the platform for mitochondrial uridine insertion/deletion RNA editing and facilitates the protein-protein and protein-RNA interactions required for the editing process. RESC is broadly comprised of two subcomplexes: GRBC (Guide RNA Binding Complex) and REMC (RNA Editing Mediator Complex). Here, we characterize the function and position in RESC organization of a previously unstudied RESC protein, MRB7260. We show that MRB7260 forms numerous RESC-related complexes, including a novel, small complex with the guide RNA binding protein, GAP1, which is a canonical GRBC component, and REMC components MRB8170 and TbRGG2...
January 12, 2018: RNA
https://www.readbyqxmd.com/read/29330107/prostate-cancer-associated-lncrnas
#12
Yuichi Mitobe, Ken-Ichi Takayama, Kuniko Horie-Inoue, Satoshi Inoue
Long non-coding RNA (LncRNA) is defined as an RNA transcript that does not encode any protein, with a length longer than 200 nt. Based on the recent advances in high-throughput sequencing techniques, a large number of lncRNAs have been characterized as functional transcripts that play important roles in various biological processes as well as pathologic states. In a research field of prostate cancer, several key lncRNAs have been identified as new players that contribute to the pathophysiology of the disease, which is primarily regulated by androgen and its cognate receptor...
January 9, 2018: Cancer Letters
https://www.readbyqxmd.com/read/29330104/circular-rna-an-emerging-non-coding-rna-as-a-regulator-and-biomarker-in-cancer
#13
Bing Chen, Shenglin Huang
Circular RNA (circRNA) is a type of covalently closed non-coding RNA that may regulate gene expression in eukaryotes. The recent application of high-throughput RNA sequencing and bioinformatics approaches has revealed a large number of circRNAs in human cells. Emerging evidence indicates that many circRNAs have cell-type specific expression and are linked to physiological development and various diseases. Specially, circRNAs can either serve as oncogenic stimuli or tumor suppressors in cancer. circRNAs have also been shown to be enriched and stable in extracellular fluid, indicating the potential of circRNAs as cancer biomarkers...
January 9, 2018: Cancer Letters
https://www.readbyqxmd.com/read/29329935/tick-borne-pathogen-detection-what-s-new
#14
Alejandro Cabezas-Cruz, Muriel Vayssier-Taussat, Gilbert Greub
Ticks and the pathogens they transmit constitute a growing burden for human and animal health worldwide. Traditionally, tick-borne pathogen detection has been carried out using PCR-based methods that rely in known sequences for specific primers design. This approach matches with the view of a 'single-pathogen' epidemiology. Recent results, however, have stressed the importance of coinfections in pathogen ecology and evolution with impact in pathogen transmission and disease severity. New approaches, including high-throughput technologies, were then used to detect multiple pathogens, but they all need a priori information on the pathogens to search...
January 9, 2018: Microbes and Infection
https://www.readbyqxmd.com/read/29329522/a-game-improving-the-assembly-of-pooled-functional-metagenomics-sequence-data
#15
Matteo Chiara, Antonio Placido, Ernesto Picardi, Luigi Ruggiero Ceci, David Stephen Horner, Graziano Pesole
BACKGROUND: Expression screening of environmental DNA (eDNA) libraries is a popular approach for the identification and characterization of novel microbial enzymes with promising biotechnological properties. In such "functional metagenomics" experiments, inserts, selected on the basis of activity assays, are sequenced with high throughput sequencing technologies. Assembly is followed by gene prediction, annotation and identification of candidate genes that are subsequently evaluated for biotechnological applications...
January 12, 2018: BMC Genomics
https://www.readbyqxmd.com/read/29328992/transcriptome-wide-identification-and-competitive-disruption-of-sacum-binding-partners-in-human-colorectal-cancer
#16
Yinguang Zhang, Yongwang Zhang, Yuxiang Zhang
Human sacum is regulatory adaptor protein involved in cellular signaling network of colorectal cancer. Molecular evidences suggest that the protein is integrated into oncogenic signaling network by binding to SH3-containing proteins through its proline-rich motifs. In this study, we have performed a transcriptome-wide analysis and identification of sacum-binding partners in the genome profile of human colorectal cancer. The sacum-binding potency of SH3-containing proteins found in colorectal cancer was investigated by using bioinformatics modeling and intermolecular binding analysis...
December 30, 2017: Journal of Molecular Graphics & Modelling
https://www.readbyqxmd.com/read/29328404/chronic-oxymatrine-treatment-induces-resistance-and-epithelial%C3%A2-mesenchymal-transition-through-targeting-the-long-non-coding-rna-malat1-in-colorectal-cancer-cells
#17
Yibai Xiong, Jun Wang, Huirong Zhu, Lingshuang Liu, Yi Jiang
A major reason for colorectal cancer (CRC) chemoresistance is the enhanced migration and invasion of cancer cells, such as the cell acquisition of epithelial-mesenchymal transition (EMT). Long non-coding RNA (lncRNA) metastasis-associated lung adenocarcinoma transcript 1 (MALAT1) has been considered as a pro-oncogene in multiple cancers. However, the precise functional mechanism of lncRNA MALAT1 in chemoresistance and EMT is not well known. In the present study, we focused on the effect of oxymatrine on CRC cells and further investigated the role of MALAT1 in oxymatrine-induced resistance and EMT process...
January 10, 2018: Oncology Reports
https://www.readbyqxmd.com/read/29327814/systematic-evaluation-of-protein-sequence-filtering-algorithms-for-proteoform-identification-using-top-down-mass-spectrometry
#18
Qiang Kou, Si Wu, Xiaowen Liu
Complex proteoforms contain various primary structural alterations resulting from variations in genes, RNA, and proteins. Top-down mass spectrometry is commonly used for analyzing complex proteoforms because it provides whole sequence information of the proteoforms. Proteoform identification by top-down mass spectral database search is a challenging computational problem because the types and/or locations of some alterations in target proteoforms are in general unknown. Although spectral alignment and mass graph alignment algorithms have been proposed for identifying proteoforms with unknown alterations, they are extremely slow to align millions of spectra against tens of thousand protein sequences in high throughput proteome level analyses...
January 12, 2018: Proteomics
https://www.readbyqxmd.com/read/29325629/bioinformatics-and-genomic-databases
#19
Jason Chen, Giovanni Coppola
High-throughput, low-cost sequencing technologies have begun to yield new insights into biology and medicine. New data enable the interrogation of the molecular biology of disease from DNA to RNA to protein, charting the central dogma. This chapter reviews some of the key advances and resources in the application of bioinformatics to understanding, and ultimately diagnosing and treating, diseases of the nervous system. Array genotyping, exome sequencing, and whole-genome sequencing, in both disease and healthy populations, have enabled the interpretation of new genetic data...
2018: Handbook of Clinical Neurology
https://www.readbyqxmd.com/read/29325623/tourette-disorder-and-other-tic-disorders
#20
Thomas V Fernandez, Matthew W State, Christopher Pittenger
Tourette disorder is a developmental neuropsychiatric condition characterized by vocal and motor tics that can range in severity from mild to disabling. It represents one end of a spectrum of tic disorders and is estimated to affect 0.5-0.7% of the population. Accumulated evidence supports a substantial genetic contribution to disease risk, but the identification of genetic variants that confer risk has been challenging. Positive findings in candidate gene association studies have not replicated, and genomewide association studies have not generated signals of genomewide significance, in large part because of inadequate sample sizes...
2018: Handbook of Clinical Neurology
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