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. 1997 Aug;71(8):6214–6217. doi: 10.1128/jvi.71.8.6214-6217.1997

Poliovirus protein 2BC increases cytosolic free calcium concentrations.

R Aldabe 1, A Irurzun 1, L Carrasco 1
PMCID: PMC191886  PMID: 9223520

Abstract

Poliovirus-infected cells undergo an increase in cytoplasmic calcium concentrations from the 4th h postinfection. The protein responsible for this effect was identified by the expression of different poliovirus nonstructural proteins in HeLa cells by using a recombinant vaccinia virus system. Synthesis of protein 2BC enhances cytoplasmic calcium concentrations in a manner similar to that observed in poliovirus-infected cells. To identify the regions in 2BC involved in modifying cytoplasmic calcium levels, several 2BC variants were generated. Regions present in both 2B and 2C are necessary to augment cellular free calcium levels. Therefore, in addition to inducing proliferation of membranous vesicles, poliovirus protein 2BC also alters cellular calcium homeostasis.

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Selected References

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