• Title/Summary/Keyword: Bio Organization

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ENCODE: A Sourcebook of Epigenomes and Chromatin Language

  • Yavartanoo, Maryam;Choi, Jung Kyoon
    • Genomics & Informatics
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    • v.11 no.1
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    • pp.2-6
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    • 2013
  • Until recently, since the Human Genome Project, the general view has been that the majority of the human genome is composed of junk DNA and has little or no selective advantage to the organism. Now we know that this conclusion is an oversimplification. In April 2003, the National Human Genome Research Institute (NHGRI) launched an international research consortium called Encyclopedia of DNA Elements (ENCODE) to uncover non-coding functional elements in the human genome. The result of this project has identified a set of new DNA regulatory elements, based on novel relationships among chromatin accessibility, histone modifications, nucleosome positioning, DNA methylation, transcription, and the occupancy of sequence-specific factors. The project gives us new insights into the organization and regulation of the human genome and epigenome. Here, we sought to summarize particular aspects of the ENCODE project and highlight the features and data that have recently been released. At the end of this review, we have summarized a case study we conducted using the ENCODE epigenome data.

BioStore: A Repository System for Registering and Distributing Public Biology Databases

  • Tae, Hong-Seok;Han, Jeong-Min;Ahn, Bu-Young;Park, Kie-Jung
    • Genomics & Informatics
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    • v.7 no.1
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    • pp.49-51
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    • 2009
  • Although abundant biology data have been accumulated in public biology databases, such as GenBank and PIR, few easy-interface services are provided for users to access or update them. We have developed a system, named BioStore, that is composed of several programs to aid users to not only access public data but also share their own data easily. The service can be used for maintaining a local database as a repository of raw data files of several public databases and distributing the data files to other users. Currently, BioStore manipulates major bio-databases and will expand to include more databases and more useful interfaces.

Patome: Database of Patented Bio-sequences

  • Kim, SeonKyu;Lee, ByungWook
    • Genomics & Informatics
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    • v.3 no.3
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    • pp.94-97
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    • 2005
  • We have built a database server called Patome which contains the annotation information for patented bio-sequences from the Korean Intellectual Property Office (KIPO). The aims of the Patome are to annotate Korean patent bio-sequences and to provide information on patent relationship of public database entries. The patent sequences were annotated with Reference Sequence (RefSeq) or NCBI's nr database. The raw patent data and the annotated data were stored in the database. Annotation information can be used to determine whether a particular RefSeq ID or NCBI's nr ID is related to Korean patent. Patome infrastructure consists of three components­the database itself, a sequence data loader, and an online database query interface. The database can be queried using submission number, organism, title, applicant name, or accession number. Patome can be accessed at http://www.patome.net. The information will be updated every two months.

ManBIF: a Program for Mining and Managing Biobank Impact Factor Data

  • Yu, Ki-Jin;Nam, Jung-Min;Her, Yun;Chu, Min-Seock;Seo, Hyung-Seok;Kim, Jun-Woo;Jeon, Jae-Pil;Park, Hye-Kyung;Park, Kie-Jung
    • Genomics & Informatics
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    • v.9 no.1
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    • pp.37-38
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    • 2011
  • Biobank Impact Factor (BIF), which is a very effective criterion to evaluate the activity of biobanks, can be estimated by the citation information of biobanks from scientific papers. We have developed a program, ManBIF, to investigate the citation information from PDF files in the literature. The program manages a dictionary for expressions to represent biobanks and their resources, mines the citation information by converting PDF files to text files and searching with a dictionary, and produces a statistical report file. It can be used as an important tool by biobanks.

Genomic Organization, Tissue Distribution and Developmental Expression of Glyceraldehyde 3-Phosphate Dehydrogenase Isoforms in Mud Loach Misgurnus mizolepis

  • Lee, Sang Yoon;Kim, Dong Soo;Nam, Yoon Kwon
    • Fisheries and Aquatic Sciences
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    • v.16 no.4
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    • pp.291-301
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    • 2013
  • The genomic organization, tissue distribution, and developmental expression of two paralogous GAPDH isoforms were characterized in the mud loach Misgurnus mizolepis (Cypriniformes). The mud loach gapdh isoform genes (mlgapdh-1 and mlgapdh-2) had different exon-intron organizations: 12 exons in mlgapdh-1 (spanning to 4.88 kb) and 11 in mlgapdh-2 (11.78 kb), including a non-translated exon 1 in each isoform. Southern blot hybridization suggested that the mud loach might possess the two copies of mlgapdh-1 and a single copy of mlgapdh-2. The mlgapdh-1 transcript levels are high in tissues requiring high energy flow, such as skeletal muscle and heart, whereas mlgapdh-2 is expressed abundantly in the brain. Both isoforms are differentially regulated during embryonic and larval development, during which their expression is upregulated with the progress of development. Lipopolysaccharide challenge preferentially induced mlgapdh-2 transcripts in the liver. Therefore, the two isoforms have diversified functionally; mlgapdh-1 is associated more closely with energy metabolism, while mlgapdh-2 is related more to stress/immune responses, in the mud loach.

BAF53 is Critical for Focus Formation of $\gamma$-H2AX in Response to DNA Damage

  • Park, Pan-Kyu;Kang, Dong-Hyun;Kwon, Hyock-Man
    • Animal cells and systems
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    • v.13 no.4
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    • pp.405-409
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    • 2009
  • When DNA double-strand breaks (DSBs) were induced in mammalian cells, many DNA damage response proteins are accumulated at damage sites to form nuclear foci called IR-induced foci. Although the formation of foci has been shown to promote repair efficiency, the structural organization of chromatin in foci remains obscure. BAF53 is an actin-related protein which is required for maintenance of chromosome territory. In this study, we show that the formation of IR-induced foci by $\gamma$-H2AX and 53BP1 were reduced when BAF53 is depleted, while DSB- activated ATM pathway and the phosphorylation of H2AX remains intact after DNA damage in BAF53 knockdown cells. We also found that DSB repair efficiency was largely compromised in BAF53 knockdown cells. These results indicate that BAF53 is critical for formation of foci by $\gamma$-H2AX decorated chromatin at damage sites and the structural organization of chromatin in foci is an important factor to achieve the maximum efficiency of DNA repair.

The Status of Production and Usage of Bio-Jet Fuel (바이오항공유 생산 및 사용현황)

  • Young-Kwan, Lim;Jin-Woo Doe
    • Applied Chemistry for Engineering
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    • v.34 no.5
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    • pp.472-478
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    • 2023
  • The usage of jet fuel has been increasing with increasing passenger and logistics movements under globalization. CO2, which is the main global warming gas from aircraft, was charged about 3.5% of total global CO2 emissions and 12% of transportation fuel emissions. For these reasons, a lot of governments and the international civil aviation organization (ICAO) are trying to reduce CO2 emissions via the introduction of bio-jet fuel. In this paper, we showed the jet fuel properties, specifications, and presentative production methods of bio-jet fuel such as alcohol to jet (ATJ), oil to jet (OTJ), gas to jet (GTJ) and sugar to jet (STJ). Also, we described the status of global and domestic bio-jet fuel usage and the policy plan for efficient distribution.