id author title date pages extension mime words sentences flesch summary cache txt cord-320207-cwt7dswz Zeng, Yingchun The nucleocapsid protein of SARS-associated coronavirus inhibits B23 phosphorylation 2008-05-02 .txt text/plain 3129 173 53 B23 protein is also identified as one of the substrates of CDK2/cyclin E and plays a critical role in centrosome duplication during cell cycle progression, which is regulated by the phosphorylation of B23 at Thr199 [26, 27] . The overlayed result indicated that the SARS-CoV N protein co-localized with B23 protein in the perinuclear region of HeLa cells (Fig. 1f) . In our previous research, we found that SARS-CoV N protein contained three NLS motifs and a nuclear export signal, acting as a shuttle protein between nucleus and cytoplasm, and it could arrest the cell cycle progression [10] . B23 protein can bind NLS, facilitate protein nuclear import and play a role in centrosome duplication during cell cycle progression [20, 21, 26] . In our previous research, we have shown that the N protein of SARS-CoV can arrest cell cycle progression [10] , which is in accordance with the result of Surjit et al. ./cache/cord-320207-cwt7dswz.txt ./txt/cord-320207-cwt7dswz.txt