Banasik, M.* ; Napolitano, V.* ; Blat, A.* ; Abdulkarim, K.* ; Plewka, J.* ; Czaplewski, C.* ; Gieldon, A.* ; Kozak, M.* ; Wladyka, B.* ; Popowicz, G.M. ; Dubin, G.*
Structural dynamics of the TPR domain of the peroxisomal cargo receptor Pex5 in Trypanosoma.
Int. J. Biol. Macromol. 280:135510 (2024)
Peroxisomal protein import has been identified as a valid target in trypanosomiases, an important health threat in Central and South America. The importomer is built of multiple peroxins (Pex) and structural characterization of these proteins facilitates rational inhibitor development. We report crystal structures of the Trypanosoma brucei and T. cruzi tetratricopeptide repeat domain (TPR) of the cytoplasmic peroxisomal targeting signal 1 (PTS1) receptor Pex5. The structure of the TPR domain of TbPex5 represents an apo-form of the receptor which, together with the previously determined structure of the complex of TbPex5 TPR and PTS1 demonstrate significant receptor dynamics associated with signal peptide recognition. The structure of the complex of TPR domain of TcPex5 with PTS1 provided in this study details the molecular interactions that guide signal peptide recognition at the atomic level in the pathogenic species currently perceived as the most relevant among Trypanosoma. Small - angle X - ray scattering (SAXS) data obtained in solution supports the crystallographic findings on the compaction of the TPR domains of TbPex5 and TcPex5 upon interaction with the cargo.
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Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Typ der Hochschulschrift
Herausgeber
Schlagwörter
Chagas Disease ; Pex5 ; Peroxin ; Structural Dynamics ; Tpr Domain ; Trypanosoma; Protein Import; Chagas-disease; Recognition; Inhibitors; Insights
Keywords plus
Sprache
englisch
Veröffentlichungsjahr
2024
Prepublished im Jahr
0
HGF-Berichtsjahr
2024
ISSN (print) / ISBN
0141-8130
e-ISSN
1879-0003
ISBN
Bandtitel
Konferenztitel
Konferzenzdatum
Konferenzort
Konferenzband
Quellenangaben
Band: 280,
Heft: ,
Seiten: ,
Artikelnummer: 135510
Supplement: ,
Reihe
Verlag
Elsevier
Verlagsort
Radarweg 29, 1043 Nx Amsterdam, Netherlands
Tag d. mündl. Prüfung
0000-00-00
Betreuer
Gutachter
Prüfer
Topic
Hochschule
Hochschulort
Fakultät
Veröffentlichungsdatum
0000-00-00
Anmeldedatum
0000-00-00
Anmelder/Inhaber
weitere Inhaber
Anmeldeland
Priorität
Begutachtungsstatus
Peer reviewed
POF Topic(s)
30203 - Molecular Targets and Therapies
Forschungsfeld(er)
Enabling and Novel Technologies
PSP-Element(e)
G-503000-001
Förderungen
Polish Ministry of Science and Higher Education
Foundation for Polish Science
National Science Centre, Poland
Polish National Science Centre
Copyright
Erfassungsdatum
2024-10-29