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Genome Sequence Analysis of Chrysanthemum White Rust pathogen Puccinia horiana and Sterol 14-demethylase as Drug Target

국화흰녹병균 Puccinia horiana 유전체 분석과 약물 표적으로서의 sterol 14-demethylase

  • Kim, Jeong-Gu (Department of Agricultural Biotechnology, National Academy of Agricultural Science, Rural Development Administration) ;
  • Park, Sang Kun (Floriculture Research Division, National Institute of Horticultural & Herbal Science) ;
  • Park, Ha-Seung (Yesan Chrysanthemum Experiment Station, Chungcheongnam-do Agricultural Research and Extension Services) ;
  • Kwon, Soo-Jin (Department of Agricultural Biotechnology, National Academy of Agricultural Science, Rural Development Administration) ;
  • Kim, Seung Hwan (Department of Agricultural Biotechnology, National Academy of Agricultural Science, Rural Development Administration) ;
  • Lee, Dong-Jun (Department of Agricultural Biotechnology, National Academy of Agricultural Science, Rural Development Administration) ;
  • Sohn, Seong-Han (Department of Agricultural Biotechnology, National Academy of Agricultural Science, Rural Development Administration) ;
  • Lee, Byoung Moo (Department of Agricultural Biotechnology, National Academy of Agricultural Science, Rural Development Administration) ;
  • Bae, Shin-Chul (Department of Agricultural Biotechnology, National Academy of Agricultural Science, Rural Development Administration) ;
  • Ahn, Il-Pyung (Department of Agricultural Biotechnology, National Academy of Agricultural Science, Rural Development Administration) ;
  • Kim, Changhoon (Macrogen Inc.) ;
  • Baek, Jeong Hun (Macrogen Inc.)
  • 김정구 (농촌진흥청 국립농업과학원 농업생명자원부) ;
  • 박상근 (국립원예특작과학원 원예작물부) ;
  • 박하승 (충청남도 농업기술원 예산국화시험장) ;
  • 권수진 (농촌진흥청 국립농업과학원 농업생명자원부) ;
  • 김승환 (농촌진흥청 국립농업과학원 농업생명자원부) ;
  • 이동준 (농촌진흥청 국립농업과학원 농업생명자원부) ;
  • 손성한 (농촌진흥청 국립농업과학원 농업생명자원부) ;
  • 이병무 (농촌진흥청 국립농업과학원 농업생명자원부) ;
  • 배신철 (농촌진흥청 국립농업과학원 농업생명자원부) ;
  • 안일평 (농촌진흥청 국립농업과학원 농업생명자원부) ;
  • 김창훈 (주식회사 마크로젠) ;
  • 백정훈 (주식회사 마크로젠)
  • Received : 2013.11.14
  • Accepted : 2013.12.16
  • Published : 2013.12.31

Abstract

Chrysanthemum is an economically important horticultural plant in many countries. The white rust is one of the most devastating diseases caused by an obligate fungal pathogen Puccinia horiana. This is being controlled mostly by application of chemicals. In Korea, 26 items are registered and 10 items contain 6 triazole compounds. To identify and to obtain the information of the drug target for triazoles, possible sterol 14-demethylase orthologues were extracted. From the draft genome information, the nucleotide sequence of the sterol 14-demethylase gene was identified. The amino acid sequence was deduced and the tertiary structure of the enzyme was predicted. This protein showed no less than 84% amino acid sequence identities to those of genus Puccinia and no more than 68% to those of other genus.

국화는 한국을 비롯한 여러나라에서 중요한 화훼작물이며 국화흰녹병은 절대기생성 진균인 Puccinia horiana에 의하여 유발되는 병으로 국화에 가장 심한 피해를 초래하는 병해 중의 하나이다. 이 병의 방제는 주로 약제 방제에 의존하고 있는데 국내에서는 26개 농약품목이 등록되어 있으며 그 중 10개 품목의 주성분은 트리아졸계 화합물이다. 트리아졸 화합물에 대한 약물표적의 유전자 존재를 확인하고 그 정보를 얻기 위하여 국화흰녹병균 유전체 염기서열 분석의 중간결과로서 병원균의 세포막 구성의 중요성분인 에르고스테롤 생합성에 관여하며 트리아졸계 화합물의 표적이 되는 sterol 14-demethylase 유전자의 염기서열을 확인하고 그 아미노산 서열과 삼차구조를 예측하였다. 이 단백질은 Puccinia속내에서는 84% 이상의 상동성을 보였으나 다른 속에서는 68% 이하의 상동성을 보였다.

Keywords

References

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