• 제목/요약/키워드: microbial genome

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미생물 게놈자원을 위한 메타정보 시스템의 개발 (The Development of Meta-Information System for Microbial Genome Resources)

  • Chung, Won-Hyong;Yu, Jae-Woo;Sohn, Tae-Kwon;Park, Yong-Ha;Kim, Hong-Ik
    • 한국생물정보학회:학술대회논문집
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    • 한국생물정보시스템생물학회 2003년도 제2차 연례학술대회 발표논문집
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    • pp.245-250
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    • 2003
  • There are currently about 6000 bacterial species with validly published names, but scientists assume that these may be less than 1% of bacterial species present on the earth. Microbial resource is one of the most important bioresources in bioinderstry and provides us with high economic values. To find missing ones, the studies of metagenome, metabolome, and proteome about microbes have started recently in developed countries. We construct the information system that integrates information on microbial genome resources and manages the information to support efficient research of microbial genome application, and name this system 'Bio-Meta Information System (Bio-MIS)'. Bio-MIS consists of integrated microbial genome resources database, microbial genome resources input system, integrated microbial genome resources search engine, microbial resources on-line distribution system, portal service and management via internet. In the future, we will include public database connection and implement useful bioinformatics software for analyzing microbial genome resources. The web-site is accessible at http://biomis.probionic.com

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Advances in Accurate Microbial Genome-Editing CRISPR Technologies

  • Lee, Ho Joung;Lee, Sang Jun
    • Journal of Microbiology and Biotechnology
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    • 제31권7호
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    • pp.903-911
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    • 2021
  • Previous studies have modified microbial genomes by introducing gene cassettes containing selectable markers and homologous DNA fragments. However, this requires several steps including homologous recombination and excision of unnecessary DNA regions, such as selectable markers from the modified genome. Further, genomic manipulation often leaves scars and traces that interfere with downstream iterative genome engineering. A decade ago, the CRISPR/Cas system (also known as the bacterial adaptive immune system) revolutionized genome editing technology. Among the various CRISPR nucleases of numerous bacteria and archaea, the Cas9 and Cas12a (Cpf1) systems have been largely adopted for genome editing in all living organisms due to their simplicity, as they consist of a single polypeptide nuclease with a target-recognizing RNA. However, accurate and fine-tuned genome editing remains challenging due to mismatch tolerance and protospacer adjacent motif (PAM)-dependent target recognition. Therefore, this review describes how to overcome the aforementioned hurdles, which especially affect genome editing in higher organisms. Additionally, the biological significance of CRISPR-mediated microbial genome editing is discussed, and future research and development directions are also proposed.

A data management system for microbial genome projects

  • Ki-Bong Kim;Hyeweon Nam;Hwajung Seo and Kiejung Park
    • 한국생물정보학회:학술대회논문집
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    • 한국생물정보시스템생물학회 2000년도 International Symposium on Bioinformatics
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    • pp.83-85
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    • 2000
  • A lot of microbial genome sequencing projects is being done in many genome centers around the world, since the first genome, Haemophilus influenzae, was sequenced in 1995. The deluge of microbial genome sequence data demands new and highly automatic data flow system in order for genome researchers to manage and analyze their own bulky sequence data from low-level to high-level. In such an aspect, we developed the automatic data management system for microbial genome projects, which consists mainly of local database, analysis programs, and user-friendly interface. We designed and implemented the local database for large-scale sequencing projects, which makes systematic and consistent data management and retrieval possible and is tightly coupled with analysis programs and web-based user interface, That is, parsing and storage of the results of analysis programs in local database is possible and user can retrieve the data in any level of data process by means of web-based graphical user interface. Contig assembly, homology search, and ORF prediction, which are essential in genome projects, make analysis programs in our system. All but Contig assembly program are open as public domain. These programs are connected with each other by means of a lot of utility programs. As a result, this system will maximize the efficiency in cost and time in genome research.

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식용곤충 갈색거저리에서 분리한 카로테노이드 생성균주인 Pantoea intestinalis SRCM103226 균주의 유전체 해독 (Complete genome sequence of Pantoea intestinalis SRCM103226, a microbial C40 carotenoid zeaxanthin producer)

  • 김진원;하광수;정성엽;정도연
    • 미생물학회지
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    • 제55권2호
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    • pp.167-170
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    • 2019
  • Pantoea intestinalis SRCM103226은 식용곤충 밀웜으로부터 분리하였으며, zeaxanthin을 메인으로 생산하였다. P. intestinalis SRCM103226의 유전체 분석을 실시하여 4,784,919 bp 크기의 염기서열, GC 비율은 53.41%로 나타났으며, 플라스미드는 존재하지 않는다. RAST server를 이용하여 annotation한 결과 4,332개의 코딩유전자, 22개의 rRNA, 85개의 tRNA 유전자가 확인되었다 지놈분석결과 zeaxanthin 생합성회로 5개 유전자를 가지고 있다. 이러한 유전체 정보는 zeaxanthin 생합성 경로의 분자 진화의 비교 유전체학 연구에 대한 기초 정보를 제공한다.

Complete Genome Sequence of Myxococcus stipitatus KYC2006, a Myxobacterium That Affects the Growth of Photosynthetic Microorganisms

  • Junyeong Park;Hyeran Lee;Sunjin Lee;Hyesook Hyun;Hyun Gi Koh;Min-Jin Kim;Buyng Su Hwang;Bongsoo Lee
    • 한국미생물·생명공학회지
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    • 제52권2호
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    • pp.204-207
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    • 2024
  • Here, we report the whole-genome sequence of Myxococcus stipitatus KYC2006, a bacterium whose conditioned media affect the growth of photosynthetic microorganisms such as cyanobacteria and microalgae. The genome of M. stipitatus KYC2006 was assembled into a 10,311,252 bp circular genome with 68.5% of GC content, containing 7,949 protein-coding genes, 12 rRNA genes, and 79 tRNA genes. Further analysis revealed that there are 29 secondary metabolite biosynthetic gene clusters in M. stipitatus KYC2006. These results suggest that M. stipitatus KYC2006 holds a significant potential as a resource for research on the development of biocontrol agents and value-added products from photosynthetic microorganisms.

Complete Genome Sequence of a Staphylococcus aureus Sequence Type 188 Strain SA73-2 Isolated from Lettuce

  • Kwang-Kyo Oh;Seung-Mi Seo;Hyunsuk Jin;Bo-Eun Kim;Husna;Dong Suk Park
    • 한국미생물·생명공학회지
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    • 제51권4호
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    • pp.559-561
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    • 2023
  • Staphylococcus aureus is a ubiquitous pathogen associated with both human and animal diseases. In this study, we present the complete genome sequence of SA73-2, which was isolated from lettuce at an agricultural farm in South Korea. The assembled genome consists of a 2,750,304-bp circular chromosome and a 24,654-bp plasmid. This strain belongs to sequence type 188 (ST188), with spa type 189, and carries the β-lactamase gene (blaZ) on the plasmid.