Journal of Aquaculture (한국양식학회지)

The Korean Society of Fisheries and Aquatic Science (한국양식학회)
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Determination of Growth Hormone cDNA in Brook Trout, Salvelinus fontinalis

Brook trout (Salvelinus fontinalis) 성장호르몬 cDNA의 염기배열 결정

  • 이종영 (건국대학교 동물자원연구센터) ;
  • 권혁추 (선문대학교 식량자원학부) ;
  • 김세연 (건국대학교 동물자원연구센터) ;
  • 박홍양 (건국대학교 동물자원연구센터)
  • Published : 1998.08.01
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Abstract

Amplification of brook trout growth hormone cDNA using polymerase chain reactiono (PCR) produced a nucleotide of 1,120 bp which contained the 5'non-coding region (13bp), an open reading frame (ORF) coding a growth hormone polypeptide consisting of 210 amino acids (630 bp), and a 3'non-coding region (477 bp). In open reading frame s signal peptide of 22 amino acid and 2 potential disulfide bond sites deduced by 4 cysteine residues were obser-bed. Brook trout growth hormone has 97.1%, 94.8%, 94.3%, 91.9%, 66.2%, 63.5%, 62.9%, 62.3%, 53.8% and 48.1% amino acid identity with that of Atlantic salmon, chum salmon, rainbow trout, coho salmon, tuna, tilapia, yellow tail, carp, flounder and eel, respectively.

본 연구는 PCR을 이용하여 brook trout의 성장호르몬 cDNA를 증폭시켰다. 증폭된 brook trout의 성장호르몬 cDNA의 전 염기서열은 1,120bp로 13bp의 5'uncoding region과 477bp의 3'uncoding region 그리고 630bp로 coding되는 210 아미노산 잔기가 open reading frame(ORF)을 구성하고 있음을 알았다, 또한, ORF의 아미노산 배열로부터 22개의 아미노산으로 이루어진 signal peptide 그리고 4개의 cysteine 잔기로부터 2개의 disulfide bond 결합을 하고있었으며, 이는 성장호르몬 단백질이 종을 초월하여 2개의 disulfide bond 결합으로 이루어진 고치구조를 형성하고 있는 것이 시사되었다. 그리고 Atlantic salmon과 97.1%, chum salmon과 94.8%, rainbow trout와 94.3%, coho salmon과 91.9%, tuna와 66.2%, tilapia와 63.5%, yellow tail과 62.9%, carp와 62.3%, flounder와 53.8%, eel과 48.1%의 아미노산 상동성을 나타냈다.

Keywords

References

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