Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: EC:2.5.1.18 (glutathione S-transferase)
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Recent studies were mainly focus on the cytidine deaminase family genes, which contained a lot of members that varied on the function of catalytic deamination in RNA or DNA and were involved in the process of growth maintenance, host immunity, retroviral infection, tumorigenesis, and drug resistance with a feature of C-U deamination. In this study, we identified a new member of cytidine deaminase family, NYD-SP15. Previous work showed that the deduced structure of the protein contained two dCMP_cyt_deam domains, which were involved in zinc ion binding. NYD-SP15 was expressed variably in a wide range of tissues, indicating its worthy biological function and creative significances. Sequence analysis, RT-PCR, western blot, flow cytometry, direct-site mutation and GST pull-down assay were performed to analyze the construction and function of NYD-SP15. The results in our studies showed that NYD-SP15 was closely related to deoxycytidylate deaminase and cytidine deaminase, with authentic cytidine deaminase activity in vivo and vitro as well as homo dimerization effects. NYD-SP15 contained nuclear localization sequence (NLS) and nuclear export-signal (NES) and could dynamically shuttle between the nucleus and cytoplasm. Furthermore, NYD-SP15 gene over-expression reduced the cells growth and blocked G1 to S phase, which implied a potential inhibition effect on cell growth.
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PMID:Structural and biological function of NYD-SP15 as a new member of cytidine deaminases. 2694 30