Biochemical characterization of a calcium-sensitive protein kinase LeCPK2 from tomato
文献类型: 外文期刊
第一作者: Zhang, Zhili
作者: Zhang, Zhili;Fu, Gui;Chen, Xin;Chang, Wenjun;Zhu, Jiahong
作者机构:
关键词: Calcium-dependent protein kinase;LeCPK2;Kinase-Glo (R) Luminescent Kinase Assay;Tomato
期刊名称:INDIAN JOURNAL OF BIOCHEMISTRY & BIOPHYSICS ( 影响因子:1.918; 五年影响因子:1.406 )
ISSN: 0301-1208
年卷期: 2011 年 48 卷 3 期
页码:
收录情况: SCI
摘要: LeCPK2 (GenBank GQ205414), a versatile calcium-dependent protein kinase (CDPK or CPK) gene was isolated from tomato in our previous study. In this study, the biochemical properties of LeCPK2 were further investigated. To examine the role of the C-terminal calmodulin-like domain (CLD) of LeCPK2 with respect to Ca(2+) activation, the kinase activities of recombinant full-length and truncated LeCPK2 were measured by Kinase-Glo (R) Luminescent kinase assay (Promega). The results showed that LeCPK2 activity was Ca(2+)-dependent and the C-terminal CLD of 161 residues was essential for the activation of LeCPK2. The activity of LeCPK2 was sharply stimulated by Ca(2+) with K(0.5) (concentration of Ca(2+) for half-maximal activity) of 48.8 and 45.5 nM with substrate histone IIIs and syntide 2, respectively. The optimal concentration of Mg(2+) for LeCPK2 activity was 20 and 10 mM for substrate histone Ills and syntide 2, respectively. The K(m) value of LeCPK2 towards histone IIIs and syntide 2 was 44.9 mu g/ml and 89.52 mu M, respectively. The determination of biochemical properties of LeCPK2 would provide some clues on how its activity was regulated in vivo.
分类号:
- 相关文献
作者其他论文 更多>>
-
Construction of a high-density genetic map for yardlong bean and identification of ANT1 as a regulator of anthocyanin biosynthesis
作者:Zhang, Hongmei;Zhang, Wei;Liu, Xiaoqing;Chen, Xin;Chen, Huatao;Meng, Shan;Yan, Wei;Hui, Linchong;Chen, Wei
关键词:
-
Occurrence, distribution, and genetic diversity of faba bean viruses in China
作者:Li, Zongdi;Qin, Jiachao;Zhu, Yuxiang;Zhou, Mimi;Chen, Xin;Cui, Xiaoyan;Li, Zongdi;Zhao, Na;Zhou, Enqiang;Wang, Xuejun
关键词:faba bean; viruses; small RNA sequencing; incidence; distribution; genetic diversity; China
-
Neurotoxicity of Combined Exposure to the Heavy Metals (Pb and As) in Zebrafish (Danio rerio)
作者:Liu, Ming;Li, Guangyu;Liu, Haoling;Zuo, Junli;Zheng, Wenting;Luan, Ning;Deng, Ping;Cui, Wenwen;Zhang, Huixian;Chen, Xin;Yao, Jingjing;Peng, Xitian;Peng, Lijun;Liu, Jiao;Yan, Wei
关键词:zebrafish; heavy metals; co-exposure; neurotoxicity; neurotransmitter; HPI axis
-
Two genes encoding caffeoyl coenzyme A O-methyltransferase 1 (CCoAOMT1) are candidate genes for physical seed dormancy in cowpea (Vigna unguiculata (L.) Walp.)
作者:Laosatit, Kularb;Amkul, Kitiya;Somta, Prakit;Lin, Yun;Yuan, Xingxing;Chen, Xin
关键词:
-
Genome-Wide Association Study and Identification of Candidate Genes Associated with Seed Number per Pod in Soybean
作者:Wang, Qiong;Zhang, Wei;Xu, Wenjing;Zhang, Hongmei;Liu, Xiaoqing;Chen, Xin;Chen, Huatao;Chen, Huatao
关键词:soybean; seed number per pod; leaf characteristics; genome-wide association study; single nucleotide polymorphism
-
Comparative transcriptome analysis between two different cadmium-accumulating genotypes of soybean (Glycine max) in response to cadmium stress
作者:Liu, Xiaoqing;Zhang, Hongmei;Zhang, Wei;Jia, Qianru;Chen, Xin;Chen, Huatao
关键词:Cadmium; Differentially expressed genes; Soybean; Transcriptome
-
TMT-based quantitative proteomic analysis of serum from domestic sheep in early pregnancy
作者:Ren, Yujun;Wang, Zhunxuan;Huang, Tao;Yang, Min;Ren, Yujun;Wang, Zhunxuan;Sun, Yishan;Gong, Hongbin;Xie, Su;Gao, Ruonan;Chen, Xin;Li, Qingchun;Lu, Shihao;Huang, Tao;Yang, Min
关键词:early pregnancy; embryo implantation; PSMB4; reproductive; serum; sheep; tandem mass-tag labelling