• 제목/요약/키워드: Cystocin

검색결과 4건 처리시간 0.018초

Streptomyces sp GCA0001로부터 Cystocin의 생산 및 분리 정제 (Production and Separation of Cystocin from Streptomyces sp GCA0001)

  • 김동현;이희찬;우진석;송재경;류광경;김대희;강선엽
    • 한국산학기술학회:학술대회논문집
    • /
    • 한국산학기술학회 2001년도 춘계학술대회 발표논문집
    • /
    • pp.292-294
    • /
    • 2001
  • Cystocin을 생산하는 Streptomyces sp GCA0001균주를 screenig하였으며, Streptomyces sp GCA0001를 배양하고 분리 정제를 통하여 흰색 분말의 Cystocin을 얻을 수 있었다. Cystocin은 Streptomyces alboniger에서 생산되는 Puromycin과 매우 유사한 구조의 항생물질로 확인되었다. Cystocin은 Puromycin과 마찬가지로 단백질 합성시 폴리펩티드 사슬의 elongation을 조기 종결함으로써 생체내에서 항박테리아, 항종양 및 항바이러스 활성을 나타낸다

Cystocin, a Novel Antibiotic, Produced by Streptomyces sp. GCA0001: Biological Activities

  • Lee, Hei-Chan;Liou, Kwangkyoung;Kim, Dae-Hee;Kang, Sun-Yub;Woo, Jin-Suk;Sohng, Jae-Kyung
    • Archives of Pharmacal Research
    • /
    • 제26권6호
    • /
    • pp.446-448
    • /
    • 2003
  • Cystocin belongs to the class of nucleoside antibiotics from Streptomyces sp. GCA0001. Cystocin showed good activity against Gram-positive bacteria, but showed less activity against the Gram-negative bacteria. Cystocin exhibited about two to four folds higher activity than puromycin. Especially, cystocin shows relatively strong activity against Streptococcus strains. Cystocin shows quite potent antitumor activity against all of the cells tested showing $IC_{50}$ values of 0.10 to 0.14 $\mu$ g/mL. This in vitro result indicates that the cytotoxocity of cystocin is two ten folds more active than puromycin s.

Cystocin, a Novel Antibiotic, Produced by Streptomyces sp. GCA0001: Production and Characterization of Cystocin

  • Sohng, Jae-Kyung;Lee, Hei-Chan;Liou, Kwang-Kyoung;Lee, Eui-Bok;Kang, Sun-Yub;Woo, Jin-Suk
    • Journal of Microbiology and Biotechnology
    • /
    • 제13권4호
    • /
    • pp.483-486
    • /
    • 2003
  • 3'-[S-Methyl-cysteinyl]-3'-amino-3'-deoxy-N,N- dimethyl adenosine, cystocin, is a biosynthesized antibiotic material newly identified from Streptomyces sp. GCA0001. Its structure was found to be similar to puromycin, where the terminal tyrosine is replaced by a methyl cysteine. NMR data prove that the 3-ammo ribose is connected to dimethylaminopurine through the anomeric carbon at 1'-carbon. The methyl cysteinyl unit is connected to the amino unit of ribose by peptide bond. The verification of the structure was performed by comparing the puromycin nucleosides resulted from the hydrolysis of cystocin and puromycin, respectively. Antibiotic activity of cystocin against Streptococcus was found to be two times more potent than that of puromycin.

Streptomyces sp. GCA0001로부터의 신규 항생물질 Cystocin의 구조분석, 생물활성 및 유도체제조 (Structure Analysis, Biological Activity of a Novel Antibiotics, Cystocin, from Streptomyces sp. GCA0001 and Production of its Derivatives)

  • 김자용;이희찬;우진석;송재경
    • 한국산학기술학회:학술대회논문집
    • /
    • 한국산학기술학회 2001년도 춘계학술대회 발표논문집
    • /
    • pp.295-297
    • /
    • 2001
  • 본 발명의 Puromycin 유도체인 Cystocin 화합물은 유기 합성에 의해 제조된 물질이 아니라 방선균 계열의 신균주인 Streptamyces sp GCA0001로부터 추출된 신규 물질로서, 항박테리아, 항종양 및 항바이러스 활성 등의 생물학적 미생물 활성면에서 종래의 Puromycin 화합물에 비해 현저히 뛰어난 효과를 지니고 있고 Streptomyces sp GCA0001로부터 추출, 분리 및 정제 과정을 통해 제조된 자연의 선택의 과정을 거친 화합물이므로, Puromycin을 대체할 수 있는 획기적인 물질로 볼 수 있다.