NMR chemical shift assignments of a module of unknown function in the cellulosomal secondary scaffoldin ScaF from Clostridium thermocellum.
Cell surface
Cellulosome
NMR assignments
Protein module
Scaffoldin
Journal
Biomolecular NMR assignments
ISSN: 1874-270X
Titre abrégé: Biomol NMR Assign
Pays: Netherlands
ID NLM: 101472371
Informations de publication
Date de publication:
10 2021
10 2021
Historique:
received:
24
02
2021
accepted:
10
04
2021
pubmed:
21
4
2021
medline:
5
2
2022
entrez:
20
4
2021
Statut:
ppublish
Résumé
The cellulosome is a highly efficient cellulolytic complex containing cellulolytic enzymes and non-catalytic subunits, i.e. scaffoldins, which are assembled by the interactions between the dockerin modules of the enzymes and the cohesin modules of the primary scaffoldins. The cellulosome attaches to the cell surface via the S-layer homology (SLH) modules of the anchoring scaffoldins. Clostridium thermocellum DSM1313 is a thermophilic cellulosome-producing bacterium with great potential in lignocellulose bioconversion and biofuel production. The bacterium contains four anchoring scaffoldins ScaB, ScaC, ScaD and ScaF, among which ScaF is the only one that contains an additional module of unknown function (ScaF-X) between the cohesin and SLH modules. The gene of ScaF is located outside the scaffoldin gene cluster of scaA, scaB, scaC and scaD. Previous studies showed unique regulation properties and function of ScaF compared to other anchoring scaffoldins, which might be related to the additional ScaF-X module. Here we report the NMR chemical shift assignments of ScaF-X from C. thermocellum DSM1313. The well-dispersed NMR spectrum and the secondary structure prediction based on the chemical shifts of ScaF-X indicated that ScaF-X is a well-folded protein module. The chemical shift assignments provide the basis for future studies on the structure of this module and its function in cellulosomes.
Identifiants
pubmed: 33876380
doi: 10.1007/s12104-021-10025-8
pii: 10.1007/s12104-021-10025-8
doi:
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
329-334Informations de copyright
© 2021. The Author(s), under exclusive licence to Springer Nature B.V.
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