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© Research
Publication : Biomolecular NMR assignments

1H, 15 N and 13C resonance assignments of the C-terminal domain of PulL, a component of the Klebsiella oxytoca type II secretion system.

Scientific Fields
Diseases
Organisms
Applications
Technique

Published in Biomolecular NMR assignments - 19 Aug 2021

Dazzoni R, López-Castilla A, Cordier F, Bardiaux B, Nilges M, Francetic O, Izadi-Pruneyre N,

Link to Pubmed [PMID] – 34410621

Link to DOI – 10.1007/s12104-021-10045-4

Biomol NMR Assign 2021 Aug; ():

Type II secretion systems (T2SS) allow Gram-negative bacteria to transport toxins and enzymes from the periplasm to the external milieu, and are thus important for the pathogenicity of bacteria. To drive secretion, T2SS assemble filaments called pseudopili closely related to bacterial type IV pili. These filaments are non-covalent polymers of proteins that are assembled by an inner membrane complex called the assembly platform connected to a cytoplasmic ATPase motor. In the Klebsiella oxytoca T2SS, the PulL protein from the assembly platform is essential for pseudopilus assembly and protein secretion. However, its role in these processes is not well understood. To decipher the molecular basis of PulL function, we used solution NMR to study its structure and interactions with other components of the machinery. Here as a first step, we report the 1H, 15 N and 13C backbone and side-chain chemical shift assignments of the C-terminal periplasmic domain of PulL and its secondary structure based on NMR data.

https://pubmed.ncbi.nlm.nih.gov/34410621