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Identification of a secretory heme‐binding protein from Nocardia seriolae involved in cell apoptosis

Journal Article · · Journal of Fish Diseases
DOI:https://doi.org/10.1111/jfd.13654· OSTI ID:1875945
 [1];  [2];  [2];  [1];  [1]
  1. Fisheries College of Guangdong Ocean University Guangdong Provincial Key Laboratory of Aquatic Animal Disease Control and Healthy Culture Zhanjiang China, Shenzhen Institute of Guangdong Ocean University Guangdong Provincial Engineering Research Center for Aquatic Animal Health Assessment, Shenzhen Public Service Platform for Evaluation of Marine Economic Animal Seedings Shenzhen China
  2. Fisheries College of Guangdong Ocean University Guangdong Provincial Key Laboratory of Aquatic Animal Disease Control and Healthy Culture Zhanjiang China

Abstract

According to the whole‐genome bioinformatics analysis, a heme‐binding protein from Nocardia seriolae (HBP) was found. HBP was predicted to be a bacterial secretory protein, located at mitochondrial membrane in eukaryotic cells and have a similar protein structure with the heme‐binding protein of Mycobacterium tuberculosis , Rv0203. In this study, HBP was found to be a secretory protein and co‐localized with mitochondria in FHM cells. Quantitative analysis of mitochondrial membrane potential value, caspase‐3 activity, and transcription level of apoptosis‐related genes suggested that overexpression of HBP protein can induce cell apoptosis. In conclusion, HBP was a secretory protein which may target to mitochondria and involve in cell apoptosis in host cells. This research will promote the function study of HBP and deepen the comprehension of the virulence factors and pathogenic mechanisms of N. seriolae .

Sponsoring Organization:
USDOE
OSTI ID:
1875945
Journal Information:
Journal of Fish Diseases, Journal Name: Journal of Fish Diseases Journal Issue: 8 Vol. 45; ISSN 0140-7775
Publisher:
Wiley-BlackwellCopyright Statement
Country of Publication:
United Kingdom
Language:
English

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