점액세균의 이차대사산물 = Secondary metabolites of myxobacteria

국문 초록 (Abstract)

점액세균은 포식활동, 자기방어, 세포 간 신호전달 및 아직까지 알려지지 않은 다른 기능을 위해 다양한 이차대사산물을 생산한다. 점액세균에서 분리된 많은 이차대사산물들은 독특한 작용기작을 가지며 항암, 항세균, 항진균 등과 같은 약학적으로 유용한 생리활성을 보인다. 따라서 전 세계적으로 많은 점액세균 균주들이 분리되었고 이들로부터 다양한 생리활성물질들이 탐색되었다. 하지만 16S rRNA 데이터베이스 분석에 의하면 야생에는 지금까지 분리된 종류 이외에도 다양한 점액세균 종류들이 존재할 것으로 추정되며, 유전체 서열 분석에 의하면 각 점액세균들은 기존에 알려진 물질보다 더 많은 물질을 생산할 수 있는 능력이 있는 것으로 나타났다. 본 총설에서는 점액세균 유래 이차대사산물들과 이들의 유전자, 점액세균에서의 기능, 생합성 유전자의 발현을 조절하는 전사조절인자 등에 대한 최근까지의 연구 현황을 살펴보았다.

다국어 초록 (Multilingual Abstract)

Myxobacteria produce diverse secondary metabolites for predation, self-defense, intercellular signaling, and other unknown functions. Many secondary metabolites isolated from myxobacteria show pharmaceutically useful bioactivity such as anticancer, antibacterial, and antifungal activities with a unique mechanism of action. Therefore, a large number of myxobacterial strains have been isolated globally and many bioactive compounds have been purified from them. However, 16S rRNA database analysis indicates that there are far more types of myxobacterial species in the wild than have ever been isolated, and genome sequence analysis suggests that each myxobacterium is capable of producing much more metabolites than already known. In this article, the current status of studies on the secondary metabolites from myxobacteria, their biosynthetic genes, biological functions, and transcriptional regulatory factors governing gene expression were reviewed.

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