Journal of Aquaculture (한국양식학회지)

The Korean Society of Fisheries and Aquatic Science (한국양식학회)
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Soluble Proteins Analysis of Class Cephalopoda in the Yellow Sea(I)

황해산 두족류의 가용성 단백질에 대한 연구 (I)

  • Published : 1997.08.01
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Abstract

To investigate a possibility of the species genetic relationship for the soluble proteins analysis on the class Cephalopoda in the Yellow Sea, the isolate eye, muscle and liver proteins from five species (Sepia esculenta, Sepiella japonica, Loligo chinensis, Loligo beka and Octopus minor) were analysed using different electrophoretic techniques (Davis-polyacrylamide gel electrophoresis, SDS-PAGE, exponential gradient SDS-PAGE, thin-layer isoelectro-focusing and two-dimensional PAGE). The average molecular weight of the soluble eye and muscle proteins was estimated at 35-50 KDa, separated b the exponential gradient SDS-PAGE. It was corresponds to that of electrophoretic patterns by t재 dimensional PAGE. By which the thin layer IEF, the target proteins showed a reasonable specificity based on their isoelectric points (pI) 7.5-8.5.

황해서식 두족류 (class Cephalopoda)의 가용성 단백질에 대한 연구를 위해, 인천 및 목포 연근해에서 채집된 두족류 3목 5종의 (오징어목 : 참갑오징어 (Sepia esculenta) 및 쇠갑오징어 (Sepiella japonica), 살오징어목 : 한치꼴뚜기 (Loligo chinensis) 및 참꼴뚜기 (Loligo beka), 문어목 : 낙지 (Octopus minor)의 안구단백질, 근육단백질 및 간조직을 추출하여, 각종 전기영동 (Davis-PAGE 및 SDS-PAGE, Exponential gradient SDS-PAGE, 등전점 전기영동, 2차원 전기영동) 방법에 의한 단백질 분리 양상을 통해 두족류 종사이의 유전적 근연관계를 분석하였다. 시료의 안구 및 근육 단백질에 대한 exponential gradient SDS-PAGE 전기영동 결과 대략 분자량 35-50 KDa 사이에서 단백질 분리 양상의 차이를 볼 수 있었으며, 등전점 전기영동 방법(IEF)에 의해서는 pI값 7.5-8.5 사이에서 종간 특이성을 갖는 단백질 분리 양상을 볼 수 있었다. 특히 유의성이 있다고 판단된 시료의 안구 단백질을 2차원 전기영동 방법에 의해 분리 해 본 결과 대부분 분자량 30-50 KDa 사이에 분포하고 있어 exponential gradient SDS-PAGE 전기 영동에 의한 결과와 일치함을 알 수 있었다.

Keywords

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