Complement C3 gene: Expression characterization and innate immune response in razor clam Sinonovacula constricta
Maoxiao Peng1, Donghong Niu1, Fei Wang1
1Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources and College of Fisheries and Life Science, Shanghai Ocean University, Shanghai 201306, China.
Fish & Shellfish Immunology
|May 28, 2016
Summary
The complement component 3 (C3) gene in razor clams (Sinonovacula constricta) was identified and characterized. This Sc-C3 gene plays a crucial role in the clam
Area of Science:
- Immunology
- Marine Biology
- Molecular Biology
Background:
- Complement component 3 (C3) is vital for immune defense and regulation.
- Limited characterization of C3 genes exists in shellfish.
- The C3 gene from Sinonovacula constricta (Sc-C3) was identified.
Purpose of the Study:
- To identify and characterize the C3 gene in Sinonovacula constricta.
- To investigate the expression patterns and immune functions of Sc-C3.
- To understand the role of Sc-C3 in razor clam immune defense.
Main Methods:
- Gene identification and sequence analysis.
- Tissue expression analysis using quantitative PCR.
- Functional assays involving serum activation and cell lysis.
Main Results:
- Sc-C3 showed high homology with other known C3 genes and contained conserved motifs.
- Sc-C3 was expressed in all tested tissues, with highest levels in hemolymph.
- Sc-C3 demonstrated immune function by inducing membrane rupture in hemocytes and bacteria.
Conclusions:
- Sc-C3 is a key component of the innate immune system in Sinonovacula constricta.
- The expression and function of Sc-C3 suggest a unique immune response pathway in this species.
- Sc-C3 contributes significantly to the immune defense of razor clams.
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