Download MendeleyFirst 3-D structural evidence of a native-like intertwined dimer in the acylphosphatase family.
Martinez-Rodriguez, S., Camara-Artigas, A., Gavira, J.A.(2023) Biochem Biophys Res Commun 682: 85-90
- PubMed: 37804591
- DOI: https://doi.org/10.1016/j.bbrc.2023.09.053
- Primary Citation of Related Structures:
8BV9 - PubMed Abstract:
Acylphosphatase (AcP, EC 3.6.1.7) is a small model protein conformed by a ferredoxin-like fold, profoundly studied to get insights into protein folding and aggregation processes. Numerous studies focused on the aggregation and/or amyloidogenic properties of AcPs suggest the importance of edge-β-strands in the process. In this work, we present the first crystallographic structure of Escherichia coli AcP (EcoAcP), showing notable differences with the only available NMR structure for this enzyme. EcoAcP is crystalised as an intertwined dimer formed by replacing a single C-terminal β-strand between two protomers, suggesting a flexible character of the C-terminal edge of EcoAcP. Despite numerous works where AcP from different sources have been used as a model system for protein aggregation, our domain-swapped EcoAcP structure is the first 3-D structural evidence of native-like aggregated species for any AcP reported to date, providing clues on molecular determinants unleashing aggregation.
- Department of Biochemistry and Molecular Biology III and Immunology, University of Granada, Avenida de La Investigación 11, Granada, 18071, Spain; Laboratorio de Estudios Cristalográficos, CSIC-UGR, Avda. de Las Palmeras 4, Armilla, Granada, 18100, Spain. Electronic address: sergio@ugr.es.
Organizational Affiliation:
