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| Content Provider | Springer Nature Link |
|---|---|
| Author | Xiu, Yunji Feng, Jia Lu, Weiqiang Liu, Dandan Wu, Ting Zhu, Huanxi Liu, Peng Li, Wenjie Ren, Qian Gu, Wei Meng, Qingguo Wang, Wen |
| Copyright Year | 2014 |
| Abstract | The 70-kDa family of heat-shock proteins (Hsp70) plays an important role in the host immunity, which is widely expressed in eukaryotic cells as a major chaperone protein. In the present study, the full-length complementary DNA (cDNA) of a second cognate cytosolic Hsp70 family member (MnHsc70-2) was cloned and characterized from Macrobrachium nipponense, which is an economically and nutritionally important crustacean. The cDNA was 2,717 bp, containing an open reading frame (ORF) of 1,950 bp, which encodes a protein of 649 amino acids with a theoretical molecular weight of 71.1 kDa and an isoelectric point of 5.27. Sequence alignment showed that the MnHsc70-2 shared 75–97 % identity with other heat-shock proteins. Compared to the previously identified cognate Hsp70 (MnHsc70-1) in M. nipponense, MnHsc70-2 showed quite different expression profiles under unstressed conditions in all tested tissues, including the hemocytes, heart, hepatopancreas, gill, intestine, nerve, and muscle. The phylogenetic analysis demonstrated that MnHsc70-2 showed the closest relationship with MnHsc70-1. Heat-inducibility assays showed that two isolated messenger RNAs (mRNAs) displayed different expression profiles in both the hepatopancreas and gill tissues. MnHsc70-1 mRNA expression level decreased at first and then increased to the normal level, whereas MnHsc70-2 mRNA level increased at first and then decreased. The expressions of two MnHsc70s showed substantial obvious heat-inducible regulation in both the hepatopancreas and gill. Under bacterial challenge by Aeromonas hydrophila, both MnHsc70-1 and MnHsc70-2 mRNA level was up-regulated moderately. The results suggested that two cognate Hsc70s may play essential functions in mediating responses to heat-shock and bacterial challenge. |
| Starting Page | 949 |
| Ending Page | 961 |
| Page Count | 13 |
| File Format | |
| ISSN | 13558145 |
| Journal | Cell Stress and Chaperones |
| Volume Number | 19 |
| Issue Number | 6 |
| e-ISSN | 14661268 |
| Language | English |
| Publisher | Springer Netherlands |
| Publisher Date | 2014-05-24 |
| Publisher Place | Dordrecht |
| Access Restriction | Subscribed |
| Subject Keyword | Macrobrachium nipponense Heat-shock protein Heat-shock treatment Aeromonas hydrophila Immune response Biomedicine general Cell Biology Biochemistry Immunology Cancer Research Neurosciences |
| Content Type | Text |
| Resource Type | Article |
| Subject | Cell Biology Biochemistry |
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