ArticleFEBS open bio2024
Crystal structure of pectocin M1 reveals diverse conformations and interactions during its initial step via the ferredoxin uptake system.
Article in FEBS open bio, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Pectocin M1 (PM1), the bacteriocin from phytopathogenic Pectobacterium carotovorum which causes soft rot disease, has a unique ferredoxin domain that allows it to use FusA of the plant ferredoxin uptake system. To probe the structure-based mechanism of PM1 uptake, we determined the X-ray structure of full-length PM1, containing an N-terminal ferredoxin and C-terminal catalytic domain connected by helical linker, at 2.04 Å resolution. Based on published FusA structure and NMR data for PM1 ferredoxin domain titrated with FusA, we modeled docking of the ferredoxin domain with FusA. Combining the docking models with the X-ray structures of PM1 and FusA enables us to propose the mechanism by which PM1 undergoes dynamic domain rearrangement to translocate across the target cell outer membrane.
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