Cloning the sterol carrier protein 2 genes of Japanese toad (Bufo japonicus formosus) and Chinese toad (Bufo gargarizans) and its tissue expression analysis

Yu-Cheng JI; Hui ZHUGE; Shan-Shan ZHANG; Shu-Fang ZHANG; Xian-Yu Yang

doi:10.13918/j.issn.2095-8137.2014.5.398

Cloning the sterol carrier protein 2 genes of Japanese toad (Bufo japonicus formosus) and Chinese toad (Bufo gargarizans) and its tissue expression analysis

doi: 10.13918/j.issn.2095-8137.2014.5.398

1.
College of Animal Science and Technology, Zhejiang Agricultural and Forestry University, Lin'an 311300, China;
2.
The Nurturing Station for the State Key Laboratory of Subtropical Silviculture, Zhejiang Agricultural and Forestry University, Lin'an 311300, China;
3.
School of Forestry and Biotechnology, Zhejiang Agricultural and Forestry University, Lin'an 311300, China

基金项目: This study was supported by the National Natural Science Foundation of China (31071181, 31372149) and the Students' Innovative Training Program of ZAFU (20120207, 20120213)

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通讯作者:
Xian-Yu Yang

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- 文章访问数: 1084
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出版历程
- 收稿日期: 2014-02-17
- 修回日期: 2014-03-25
- 刊出日期: 2014-09-08

Cloning the sterol carrier protein 2 genes of Japanese toad (Bufo japonicus formosus) and Chinese toad (Bufo gargarizans) and its tissue expression analysis

1.
College of Animal Science and Technology, Zhejiang Agricultural and Forestry University, Lin'an 311300, China;
2.
The Nurturing Station for the State Key Laboratory of Subtropical Silviculture, Zhejiang Agricultural and Forestry University, Lin'an 311300, China;
3.
School of Forestry and Biotechnology, Zhejiang Agricultural and Forestry University, Lin'an 311300, China

Funds: This study was supported by the National Natural Science Foundation of China (31071181, 31372149) and the Students' Innovative Training Program of ZAFU (20120207, 20120213)

More Information

Corresponding author: Xian-Yu Yang

摘要

摘要: In this study, to clarify the bioactive polypeptides included in the skins and secretions of Bufo, we screened the Japanese toad (Bufo japonicus formosus) skin cDNA library by colony polymerase chain reaction (PCR), and obtained a transcript of 1 075 bp consisting of 1 37 bp 5' untranslated region (UTR), 515 bp 3' UTR and a 423 bp open reading frame (ORF) encoding a polypeptide of 140 amino acid residues (GenBank accession number: KF359945). Homolog analysis showed a 70%-96% homology with sterol carrier protein-2 (SCP-2) present in other animals, which is implicated in lipid metabolism of other organisms. The gene SCP-2 of Chinese toad (B. gargarizans) was cloned from a first strand cDNA of Bufo skin (GenBank accession number: KF381341) via PCR, whose encoding polypeptide has only one amino acid difference from that of Japanese toad. Tissue distribution analysis showed that SCP-2 expressed in all organs tested, though in the liver and spleen it manifested lower expression than in other organs. These findings might indicate SCP-2 being one of the active ingredients in toad skin. These findings may in turn have implications for further drug development from traditional Chinese medicine sources.
- Bufo gargarizans /
- Bufo japonicus formosus /
- SCP-2 cDNA cloning /
- Tissue expression
Abstract: In this study, to clarify the bioactive polypeptides included in the skins and secretions of Bufo, we screened the Japanese toad (Bufo japonicus formosus) skin cDNA library by colony polymerase chain reaction (PCR), and obtained a transcript of 1 075 bp consisting of 1 37 bp 5' untranslated region (UTR), 515 bp 3' UTR and a 423 bp open reading frame (ORF) encoding a polypeptide of 140 amino acid residues (GenBank accession number: KF359945). Homolog analysis showed a 70%-96% homology with sterol carrier protein-2 (SCP-2) present in other animals, which is implicated in lipid metabolism of other organisms. The gene SCP-2 of Chinese toad (B. gargarizans) was cloned from a first strand cDNA of Bufo skin (GenBank accession number: KF381341) via PCR, whose encoding polypeptide has only one amino acid difference from that of Japanese toad. Tissue distribution analysis showed that SCP-2 expressed in all organs tested, though in the liver and spleen it manifested lower expression than in other organs. These findings might indicate SCP-2 being one of the active ingredients in toad skin. These findings may in turn have implications for further drug development from traditional Chinese medicine sources.
- Bufo gargarizans /
- Bufo japonicus formosus /
- SCP-2 cDNA cloning /
- Tissue expression

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参考文献(26)

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Cloning the sterol carrier protein 2 genes of Japanese toad (Bufo japonicus formosus) and Chinese toad (Bufo gargarizans) and its tissue expression analysis

doi: 10.13918/j.issn.2095-8137.2014.5.398

通讯作者:
Xian-Yu Yang

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Cloning the sterol carrier protein 2 genes of Japanese toad (Bufo japonicus formosus) and Chinese toad (Bufo gargarizans) and its tissue expression analysis

Corresponding author: Xian-Yu Yang

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Cloning the sterol carrier protein 2 genes of Japanese toad (Bufo japonicus formosus) and Chinese toad (Bufo gargarizans) and its tissue expression analysis

doi: 10.13918/j.issn.2095-8137.2014.5.398

通讯作者: Xian-Yu Yang

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出版历程

Cloning the sterol carrier protein 2 genes of Japanese toad (Bufo japonicus formosus) and Chinese toad (Bufo gargarizans) and its tissue expression analysis

Corresponding author: Xian-Yu Yang

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通讯作者:
Xian-Yu Yang