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Modulation of Rho GTPases by type III secretion system translocated effectors of Yersinia.

Pathogenic species of the bacterial genus Yersinia subdue the immune system to proliferate and spread within the host organism. For this purpose yersiniae employ a type III secretion apparatus which governs injection of six effector proteins ( Y ersinia outer proteins; Yops) into host cells. Yops control various regulatory and signalling proteins in a unique and highly specific manner. YopE, YopT, and YpkA/YopO modulate the activity of Rho GTP-binding proteins, whereas YopH dephosphorylates phospho-tyrosine residues in focal adhesion proteins. Furthermore, YopP/YopJ and YopM affect cell survival/apoptosis and cell proliferation, respectively. In this review the focus will be on the biochemistry and cellular effects of YopT, YopE, YopO/YpkA, and YopH.[1]

References

  1. Modulation of Rho GTPases by type III secretion system translocated effectors of Yersinia. Aepfelbacher, M. Rev. Physiol. Biochem. Pharmacol. (2004) [Pubmed]
 
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