Microbiology and Biotechnology Letters (한국미생물·생명공학회지)

The Korean Society for Microbiology and Biotechnology (한국미생물·생명공학회)
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Isolation of a Specific Antigen Protein on Cell Membrane of Cochlodinium polykrikoides, Red Bloom

적조생물 Cochlodinium polykrikoides의 세포표면 특이항원 단백질의 분리

  • Published : 2002.12.01
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Abstract

To establish a rapidly immunochemical identification on a dinoflagellate, Cochlodinium polykrikoides, a specific antigenic protein as a maker on the cell membrane was isolated. The cell membranes of C. polykrikoides and Gymnodinium sangineum were harvested by centrifugation after osmotic shock. The membrane proteins of both cells were solubilized in 50 mM Na-carbonate contained 1 mM DTT, and separated the proteins on SDS-PACE. Immune-blot on the solubilized membrane proteins of the both cells was performed with antiserum against the solubilized membrane proteins of C. polykrikoides. A 120 kDa membrane protein of C. polykrikoides had remarkablely different antigenicity from that of G. sangineum.

우리나라 연안에 주로 발생되는 적조인 Cochlodinium polykrikoides를 빠르고 정밀한 생화학적인 방법으로 측정하기 위한 일종의 maker로서 C. polykrikoides의 세포막에 존재하는 특이 항원성을 가진 막 단백질을 분리하였다. 먼저, C. polykrikoides와 gymnodium sangineum의 세포를 삼투압으로 터뜨린 후 원심분리하여 세포막을 모았다. 그 후 양 적조생물의 세포막은 1 mM DTT가 함유된 50 mM Na-carbonate로 용해하고 SDS-PAGE행하여 용해된 막 단백질을 분리하였다. SDS-PAGE로 분리된 막 단백질은 C. polykrikoides의 세포 막 단백질로 제조한 항혈청을 사용하여 immune-blot한 결과 C. polykrikoides의 120 kDa의 단백질이 G. sangineum의 동일한 크기의 막 단백질과는 서로 다른 항원성을 나타내었다.

Keywords

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