Plasmodium falciparum HSP40 protein eCiJp traffics to the erythrocyte cytoskeleton and interacts with the human HSP70 chaperone HSPA1Show others and affiliations
2022 (English)In: FEBS Letters, ISSN 0014-5793, E-ISSN 1873-3468, Vol. 596, no 1, p. 95-111Article in journal (Refereed) Published
Abstract [en]
Renovation of host erythrocytes is vital for pathogenesis by Plasmodium falciparum. These changes are mediated by parasite proteins that translocate beyond the parasitophorous vacuolar membrane in an unfolded state, suggesting protein folding by chaperones is imperative for the functionality of exported proteins. We report a type IV P. falciparum heat-shock protein 40, PF11_0034, that localizes to the cytoplasmic side of J-dots and interacts with the erythrocyte cytoskeleton, and therefore named eCiJp (erythrocyte cytoskeleton-interacting J protein). Recombinant eCiJp binds to the human heat-shock protein 70 HsHSPA1 and promotes its ATPase activity. In addition, eCiJp could suppress protein aggregation. Our data suggest that eCiJp recruits HsHSPA1 to the host erythrocyte cytoskeleton, where it may become involved in remodeling of the erythrocyte cytoskeleton and/or folding of exported parasite proteins.
Place, publisher, year, edition, pages
Wiley John Wiley & Sons, 2022. Vol. 596, no 1, p. 95-111
Keywords [en]
blood stage malaria, erythrocyte cytoskeleton interaction, heat-shock proteins, host-pathogen interaction, HSP40, HSPA1
National Category
Biochemistry Molecular Biology
Identifiers
URN: urn:nbn:se:uu:diva-469012DOI: 10.1002/1873-3468.14255ISI: 000731311300001PubMedID: 34890056OAI: oai:DiVA.org:uu-469012DiVA, id: diva2:1645390
2022-03-172022-03-172025-02-20Bibliographically approved