| Molecular Cloning, Recombinant Expression, and Antimicrobial Activity of EC-hepcidin3, a New Four-Cysteine Hepcidin Isoform from Epinephelus coioides. | |
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MedLine Citation:
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PMID: 23291752 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Hepcidin, a cysteine-rich antimicrobial peptide, is widespread in fish and shows multiple activities, including antimicrobial, antivirus, and antitumor. Here, a new four-cysteine hepcidin isoform gene, EC-hepcidin3, was cloned from the marine-cultured orange-spotted grouper (Epinephelus coioides). The complete cDNA sequence consisted of 603 bases with an open reading frame (ORF) of 270 bases. The genomic DNA sequence was composed of two introns and three exons, and its 312-bp upstream region had multiple putative transcription factor binding sites. Soluble recombinant protein EC-proHep3 containing a His-tag at the C-terminus was obtained from expression plasmid pET-28a/EC-proHep3 in Escherichia coli Rosetta. It was purified by immobilized metal affinity chromatography (IMAC), and it showed antibacterial activity in vitro. Kinetic studies indicated that recombinant EC-proHep3 has strong, rapid activity against Staphylococcus aureus and Pseudomonas stutzeri. The results indicate that EC-hepcidin3 might be an effective component in the innate immune system of groupers. |
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Authors:
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Haidong Qu; Bei Chen; Hui Peng; Kejian Wang |
Publication Detail:
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Type: JOURNAL ARTICLE Date: 2013-1-07 |
Journal Detail:
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Title: Bioscience, biotechnology, and biochemistry Volume: - ISSN: 1347-6947 ISO Abbreviation: Biosci. Biotechnol. Biochem. Publication Date: 2013 Jan |
Date Detail:
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Created Date: 2013-1-7 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9205717 Medline TA: Biosci Biotechnol Biochem Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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State Key Laboratory of Marine Environmental Science, College of Oceanography and Environmental Science, Xiamen University. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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