Molecular characterization and analysis of a novel calcium-dependent protein kinase from Eimeria tenella
文献类型: 外文期刊
作者: Han, H. Y.;Zhu, S. H.;Jiang, L. L.;Li, Y.;Dong, H.;Zhao, Q. P.;Kong, C. L.;Huang, B.
作者机构:
关键词: Eimeria tenella;calcium-dependent protein kinase;characterization;invasion
期刊名称: PARASITOLOGY
ISSN: 0031-1820
年卷期: 2013 年 140 卷 6 期
页码:
收录情况: SCI
摘要: The calcium-dependent protein kinases (CDPKs) are unique enzymes found only in plants, green algae, ciliates and apicomplexan parasites. In this study, a novel CDPK gene of Eimeria tenella, designed EtCDPK3, was cloned using rapid amplification of cDNA ends (RACE) based on the expressed sequence tag (EST). The entire cDNA of EtCDPK3 contained 1637 nucleotides encoding 433 amino acids and the deduced EtCDPK3 protein had canonical characteristic domains identified in other CDPKs, including a well-conserved amino-terminal kinase domain and a carboxy-terminal calmodulin-like structure with 4 EF-hand motifs for calcium binding. The expression profiles of the EtCDPK3 gene in different development stages were investigated by real-time quantitative PCR. Messenger RNA levels from the EtCDPK3 gene were higher in sporozoites than in other stages (unsporulated oocysts, sporulated oocysts and merozoites). Western blot analysis showed that rabbit antiserum against recombinant EtCDPK3 could recognize a native 49 kDa protein band of parasite. Indirect immunofluorescent antibody labelling revealed dispersed localization of EtCDPK3 during the first schizogony and intense specific staining. EtCDPK3 was located at the apical end of the sporozoites after early infection of DF-1 cells and the protein was highly expressed. Inhibition of EtCDPK3 function using specific antibodies reduced the ability of E. tenella to invade host cells. These results suggested that EtCDPK3 may be involved in invasion and survival of the parasite intracellular stages of E. tenella. Because this kinase family is absent from hosts, it represents a valid target that could be exploited for chemotherapy against Eimeria spp.
分类号:
- 相关文献
作者其他论文 更多>>
-
INSECTICIDAL ACTIVITY OF ETHANOL AND AQUEOUS EXTRACTS OF MEDICINAL PLANTS AGAINST GREEN PEACH APHID (MYZUS PERSICAE)
作者:HYDER, M.;LI, Y.;WANG, M.;MAO, M.;ZHANG, L.
关键词:essential oils;mortality;contact toxicity;repellency;fecundity
-
First Report Of Anthracnose Caused B.y Colletotrichum Gloeosporioides On M ikania Micrantha In Guangdong, China
作者:Ouyang, C.;Li, Y.;Huang, B.;Guo, M.;Yan, D.;Fang, W.;Cao, A.;Zhu, J.;Ren, Z.
关键词:
-
Semi-Dominant Mutation In The Cysteine-Rich R.eceptor-Like Kinase Gene, Als1, C onducts Constitutive Defence Response In Rice
作者:Du, D.;Ling, Y.;Zhang, C.;He, G.;Li, Y.;Chen, X.;Zhu, M.;Xing, Y.;Liu, M.;Lu, X.;Zhang, Y.;Zhang, Q.;Sang, X.
关键词:ALS1; hypersensitive resistance (HR); CRKs; disease resistance; rice (Oryza sativa L. subsp. italica.)
-
First Report Of Alternaria Alternata C.ausing Black Spot On T omato (Solarium Lycopersicum) In Tongzhou, China
作者:Cao, A. C.;Ren, Z. J.;Ren, Z. J.;Li, Y.;Ouyang, C. B.;Li, J.;Guo, M. X.;Yan, D. D.;Wang, Q. X.
关键词:
-
Effects of climate change and cultivar on summer maize phenology
作者:Chen, F.;Wang, Zh.;Chen, J.;Li, Y.;Wang, Zh.;Li, C.;Zhang, L.
关键词:Climate change;Cultivar;Summer maize;Phenology
-
GROWTH PERFORMANCE AND ANTIOXIDANT CAPACITIES IN PIGLETS WITH DIFFERENT WEANING AGE
作者:Li, L. A.;Yang, J. J.;Li, Y.;Jin, T. M.;Li, R. N.;Qin, S. Y.;Xie, J. J.;Du, G. M.
关键词:Weaning age;Piglet;Blood;Liver;Kidney;Lung;Antioxidant capacity
-
Effect of weaning age on cortisol release in piglets
作者:Li, L. A.;Yang, J. J.;Li, Y.;Lv, L.;Jin, T. M.;Qin, S. Y.;Jiao, X. L.;Xie, J. J.;Du, G. M.
关键词:Weaning age;Piglet;Adrenal cortex;Cortisol;Adrenal gland weight;Steroidogenic enzyme