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CryoEM structure of the nucleotide-free and open channel A.aeolicus WzmWzt transporter

ABSTRACT:

SUBMITTER: Jochen Zimmer

PROVIDER: EMPIAR-11196 | biostudies-other |

REPOSITORIES: biostudies-other

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Molecular basis for polysaccharide recognition and modulated ATP hydrolysis by the O antigen ABC transporter.

Spellmon Nicholas N Muszyński Artur A Górniak Ireneusz I Vlach Jiri J Hahn David D Azadi Parastoo P Zimmer Jochen J

Nature communications 20220905 1

O antigens are ubiquitous protective extensions of lipopolysaccharides in the extracellular leaflet of the Gram-negative outer membrane. Following biosynthesis in the cytosol, the lipid-linked polysaccharide is transported to the periplasm by the WzmWzt ABC transporter. Often, O antigen secretion requires the chemical modification of its elongating terminus, which the transporter recognizes via a carbohydrate-binding domain (CBD). Here, using components from A. aeolicus, we identify the O antige ...[more]

PMID: 36064941

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