• Title/Summary/Keyword: Sequencer

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Observation of Microorganism in Herbal Decoction mafactured by Korean Medical Clinic (한약 탕전 팩의 미생물 연구)

  • Yu, Young-Beob;Ma, Jin-Yeul;Ha, Hye-Kyung;Huang, Dae-Sun;Kim, Bok-Kyu;Shin, Kwang-Soo;Shin, Hyun-Kyoo
    • Herbal Formula Science
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    • v.15 no.2
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    • pp.119-126
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    • 2007
  • Objectives: This study presents observation of microorganism such as total aerobic bacteria, total fungus, E. coli, Pseudonomas aerugjnosa, Staphylococcus aureus, and Salmonella typhimurium in herbal decoction manufactured by Korean medical clinic. Methods: We examined to observe microorganism using the requirements for the experimental methods recommended by FDA. For the identification, we observed microscopic methods and carried out polymerase chain reaction (PCR) and DNA purification. The purified DNA samples were analyzed by DNA sequencer. As compared with NCBI database. the results were identified by sequences similarity. Results and conclusion: 26 (55%) of 46 decoctions observed positive for microbial test. 12 (46 %) of 26 positive decoctions exceed requirement of microbial limit test. These microbial colony identified genus of Bacillus using microscopic and DNA sequencing methods.

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Genetic Variations of D16S539 Locus in the Korean Population (한국인에서 D16S539 유전좌의 유전적 다형성)

  • Shin, Kyoung-Jin;Yang, Yun-Seok;Choi, Jong-Hoon;Yang, Woo-Ick;Cho, Sang-Ho;Kim, Chong-Youl
    • Journal of Oral Medicine and Pain
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    • v.25 no.4
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    • pp.395-402
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    • 2000
  • The D165539 locus was investigated to collect population genetic data in the Korean population. The selected subject was unrelated 293 Korean people. DNA was extracted from the samples and PCR was performed with fluorescent primer. The amplified fragment was analysed by automated DNA sequencer and it's application software. Among the Korean population, 7 allele and 18 geneotype were observed and allele No. 9 is mostly frequent(0.2679) and then allele No. 11(0.2679), allele No. 9(0.2645). The observed heterozygosity and the expected heterozygosity is 0.7466, 0.7829 each. The polymorphism information content(PIC) is 0.7466. The power of discrimination(PD) and the mean exclusion chance(MEC) are calculated to be 0.9190 and 0.5775.

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Development of Operator Training System Using COMS Simulator for Provision Against Contingency Situation (천리안위성 시뮬레이터를 활용한 고장대응 모의훈련시스템 개발)

  • Lee, Hoon-Hee;Koo, Cheol-Hea;Moon, Sung-Tae;Han, Sang-Hyuck;Ju, Gwang-Hyeok
    • Aerospace Engineering and Technology
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    • v.11 no.2
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    • pp.129-139
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    • 2012
  • This paper will describe the structure and characteristics of operator training system which was developed to maintain the quality of operational ability for COMS (Communication, Ocean and Meteorological Satellite) operators during a long-term nominal operations of missions and a contingency operations against an occurrence of anomaly. In particular it will present benefits and expected effects of the training system with a focus on three parts which are functions especially for trainer-friendly failure injection, an automatic sequencer of training scenario based on the predefined plan and additional functions of the existing COMS simulator. Furthermore, it will present a practical example of training on the training system to understand the overall mechanism of training process.

Sensitivity of Pseudomonas syringae to Bovine Lactoferrin Hydrolysates and Identification of a Novel Inhibitory Peptide

  • Kim, Woan-Sub;Kim, Pyeung-Hyeun;Shimazaki, Kei-ichi
    • Food Science of Animal Resources
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    • v.36 no.4
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    • pp.487-493
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    • 2016
  • The antimicrobial activity of bovine lactoferrin hydrolysates (bLFH) was measured against Pseudomonas strains (P. syringae and P. fluorescens) in vitro. To compare susceptibility to bLFH, minimal inhibitory concentration (MIC) values were determined using chemiluminescence assays and paper disc plate assays. Antimicrobial effect against P. fluorescens was not observed by either assay, suggesting that bLFH did not exhibit antimicrobial activity against P. fluorescens. However, a significant inhibition of P. syringae growth was observed in the presence of bLFH. The addition of bLFH in liquid or solid medium inhibited growth of P. syringae in a dose-dependent manner. Furthermore, a bLFH peptide with antimicrobial activity toward P. syringae was isolated and identified. The N-terminal amino acid sequences of thus obtained antimicrobial bLFH peptides were analyzed by a protein sequencer and were found to be Leu-Arg-Ile-Pro-Ser-Lys-Val-Asp-Ser-Ala and Phe-Lys-Cys-Arg-Arg-Trp-Gln-Trp-Arg-Met. The latter peptide sequence is known to be characteristic of lactoferricin. Therefore, in the present study, we identified a new antimicrobial peptide against P. syringae, present within the N-terminus and possessing the amino acid sequence of Leu-Arg-Ile-Pro-Ser-Lys-Val-Asp-Ser-Ala.

In silico analysis of MeJA-induced comparative transcriptomes in Brassica oleraceae L. var. capitata

  • Lee, Ok Ran;Kim, Dae-Soo
    • Journal of Plant Biotechnology
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    • v.43 no.2
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    • pp.189-203
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    • 2016
  • Brassica oleraceae var capitata is a member of the Brassicaceae family and is widely used as an horticultural crop. In the present study, transcriptome analysis of B. oleraceae L. var capitata was done for the first time using eight-week old seedlings treated with $50{\mu}m$ MeJA, versus mock-treated samples. The complete transcripts for both samples were obtained using the GS-FLX sequencer. Overall, we obtained 275,570 and 266,457 reads from seedlings treated with or without $50{\mu}m$ MeJA, respectively. All the obtained reads were annotated using biological databases and functionally classified using gene ontology (GO), the Kyoto Encyclopedia of Genes and Genomics (KEGG). By using GO analyses, putative transcripts were examined in terms of biotic and abiotic stresses, cellular component organization, biogenesis, and secondary metabolic processes. The KEGG pathways for most of the transcripts were involved in carbohydrate metabolism, energy metabolism, and secondary metabolite synthesis. In order to double the sequenced data, we randomly chose two putative genes involved in terpene biosynthetic pathways and studied their transcript patterns under MeJA treatment. This study will provide us a platform to further characterize the genes in B. oleracea var capitata.

Whole genome sequencing of foot-and-mouth disease virus using benchtop next generation sequencing (NGS) system

  • Moon, Sung-Hyun;Oh, Yeonsu;Tark, Dongseob;Cho, Ho-Seong
    • Korean Journal of Veterinary Service
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    • v.42 no.4
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    • pp.297-300
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    • 2019
  • In countries with FMD vaccination, as in Korea, typical clinical signs do not appear, and even in FMD positive cases, it is difficult to isolate the FMDV or obtain whole genome sequence. To overcome this problem, more rapid and simple NGS system is required to control FMD in Korea. FMDV (O/Boeun/ SKR/2017) RNA was extracted and sequenced using Ion Torrent's bench-top sequencer with amplicon panel with optimized bioinformatics pipelines. The whole genome sequencing of raw data generated data of 1,839,864 (mean read length 283 bp) reads comprising a total of 521,641,058 (≥Q20 475,327,721). Compared with FMDV (GenBank accession No. MG983730), the FMDV sequences in this study showed 99.83% nucleotide identity. Further study is needed to identify these differences. In this study, fast and robust methods for benchtop next generation sequencing (NGS) system was developed for analysis of Foot-and-mouth disease virus (FMDV) whole genome sequences.

Individual Genome Sequences and Their Smart Application In Personalized Medicine (맞춤의학 시대의 개인 유전체 서열의 해독과 스마트한 이용)

  • Kim, Dong Min;Jeong, Haeyoung;Kim, Il Chul;Won, Yonggwan
    • Smart Media Journal
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    • v.2 no.4
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    • pp.34-40
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    • 2013
  • Rapid sequencing of individual genomes with next generation sequencer opens new horizon to biology and personalized medicine. The analyzed sequences help to check several genomic abnormality, genomic expression, epigenomic phenotypes, gene annotation after assembly of their reads. Several trials integrating genomic information and clinical data will assist disease diagnostics and clinical treatments. To have a large step towards individualized medicine, development of smart interface linking specialized sequence data to the public is necessary.

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Beagle dogs parentage testing by using 22 ISAG microsatellite markers

  • Ji, Hye-jung;Kim, Eun-hee;Lee, Kyoung-kap;Kang, Tae-young;Lee, Joo-myoung;Shin, Hyoung-doo;Kim, Lyoung-hyo;Yun, Young-min
    • Korean Journal of Veterinary Research
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    • v.47 no.4
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    • pp.457-460
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    • 2007
  • The objective of the study was to establish routine parentage testing system in Beagle dogs using 22 ISAG (International Society for Animal Genetics) canine microsatellite markers (2005). Blood collections were obtained from a mother dog, 4 candidate father dogs and 3 offspring (n = 8). Genomic DNA samples were extracted from 8 Beagle dogs blood for PCR analysis. PCR products for the allele were analyzed by ABI 3130 DNA Sequencer and GeneScan (Ver 3.0) analysis and Genotyper (Ver. 2.1) software. The genetic relationship of mother and 3 offspring as well as one father dog among 4 candidate father dogs was confirmed by microsatellite allele analysis. The results of locus for amelogenin, which was designed for sexing, were matching with real gender among 8 Beagle dogs (female; 217/217 homozygosity, male; 179/217 heterozygosity). Twenty two ISAG microsatellite markers are useful the parentage test of Beagle dogs. In addition, amelogenin is an applicable marker to detecting real sex in dogs.

Development of Korean Traditional VSTi Based on Kontakt Sampler (컨탁트(Kontakt) 기반의 한국 전통 가상 악기 개발)

  • Kim, Byung O;Lee, Jungsuk
    • The Journal of the Korea Contents Association
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    • v.13 no.10
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    • pp.181-188
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    • 2013
  • Have been so many times to attempt to enhance the usefulness and convenience about using the sample sound of Korean traditional instruments. Was determined additionally VST plug-sequencer and sample libraries, a variety of methodologies, but did not lead to practical use. This study is a work in order to increase the usability of sample sound of Korean instruments. We have developed sound samples of Haegeum and Daegeum based on most widely used Kontakt sampler. Have aimed to develop sound samples for accompanying with useful function supported by Kontakt sampler helping various musical expressions.

A STUDY ON MUTATIONS OF P53 TUMOR SUPPRESSOR GENE IN ORAL TUMORS (구강종양에서 p53 종양억제 유전자의 돌연변이에 관한 연구)

  • Joo, Seong-Chai;Pyo, Sung-Woon
    • Journal of the Korean Association of Oral and Maxillofacial Surgeons
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    • v.26 no.1
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    • pp.45-52
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    • 2000
  • Nowadays, there are a lot of evidence that mutation of the p53 tumor suppressor gene is one of the most common genetic abnormalities in neoplastic progression. In this study, we analyzed 20 specimens of oral tumors(squamous cell carcinoma 14 cases, ameloblastoma 3 cases, adenoid cystic carcinoma 2 cases, malignant schwannoma 1 case)using polymerase chain reaction and direct sequencing which used an automated DNA sequencer and software for detection of mutations. Polymerase chain reactions were performed with 4 sets of primers encompassing exon 5, 6, 7, 8, and direct sequencing method was employed. The results were as followings. 1. We detected 10 point mutations out of 20 specimens (50%). 2. The genetic alterations included 7 mis-sense mutations resulting in single amino acid subtitutions, 2 silent mutations, 1 non-sense mutations encoding a stop codon. 3. Mutations were mostly in exon 7(7 out of 10 mutations, 70%) and involved codons 225, 234, 235, 236, 238, 247. 4. Therse were 4 cases of $T{\rightarrow}A$ transversion, 2 cases of $C{\rightarrow}A$ transversion, $A{\rightarrow}G$ transition, 1 case of $C{\rightarrow}G$, $T{\rightarrow}G$ transversion respectively. 5. We could find out point mutations more conveniently using PCR - Automated Direct Sequencing method.

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