블레스티시딘-에스

그림문자(GHS)

• 그림문자(GHS)

  

• 신호 어

  Danger

• 유해·위험 문구

  H300：삼키면 치명적임

• 예방조치문구

  P264：취급 후에는 손을 철저히 씻으시오.

  P264：취급 후에는 손을 철저히 씻으시오.

  P270：이 제품을 사용할 때에는 먹거나, 마시거나 흡연하지 마시오.

  P301+P310：삼켰다면 즉시 의료기관(의사)의 진찰을 받으시오.

  P321：(…) 처치를 하시오.

  P330：입을 씻어내시오.

  P405：밀봉하여 저장하시오.

  P501：...에 내용물 / 용기를 폐기 하시오.

블레스티시딘-에스 화학적 특성, 용도, 생산

• 개요

  Nucleoside antibiotic produced by Streptomyces griseochromogenes (1). Biosynthesized from cytosine, glucose, arginine, and methionine (2).

• 용도

  Blasticidin S is a nucleoside produced by several species of Streptomyces, first reported in the late 1950s. Blasticidin S is an antifungal agent with particularly potent activity against the rice pathogen, Piricularia oryzae, for which it was used commercially for some time in Japan. Blasticidin S inhibits protein synthesis and is active against bacteria, tumour cell lines and nematodes. More recently, blasticidin S has been used as a marker for strain manipulations. Blasticidin S provided by BioAustralis is presented as the free base to avoid problems associated with the use of the hydrochloride.

• 정의

  ChEBI: A blasticidin that is an antibiotic obtained from Streptomyces griseochromogene.

• 생산 방법

  Blasticidin S is produced by Streptomyces griseochromogenes, and has a wide range of antimicrobial activity (4). This antibiotic was utilized in the Far East beginning in 1961 against the rice blast pathogen Pyricularia oryzae, with effective control achieved at rates of 10–40 ppm (4).

• 일반 설명

  Blasticidin S was found in the culture broth of Streptomyces griseochromogenes by Yonehara et al. of the University of Tokyo in 1958. It has a nucleoside-analogue structure and shows strong activity against phytopathogenic fungi, especially Pericularia oryzae, the pathogen causing rice blast. Blasticidin S has been used to protect rice plants.

• Pharmacology

  Inhibits protein synthesis both in eukaryotes and in prokaryotes (5,6). Interacts with ribosomal RNA in large subunit, interfering with the transpeptidation step. Inhibits cell-free protein synthesis in P. oryzae and Escherichia coli.

• 신진 대사 경로

  Several blasticidin S-resistant microorganisms are found to produce blasticidin S deaminase which catalyzes the hydrolytic deamination of the cytosine moiety in blasticidin S to give a non-toxic deaminohydroxy derivative.

• 신진 대사

  3H-blasticidin S administered to mice was excreted in the urine and feces within 24 h. Cytomycin and cytosin were identified as the main metabolites in and on rice plants, respectively (7). In soil, DT₅₀ < 5 d. Metabolized to nontoxic deaminohydroxy blasticidin S by Aspergillus sp. and resistant Bacillus cereus. Novel deaminase and coding genes, BSD and bsr, were isolated as selectable marker genes for genetic engineering (8).

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