Sutter, Markus and Boehringer, Daniel and Gutmann, Sascha and Guenther, Susanne and Prangishvili, David and Loessner, Martin J. and Stetter, Karl O. and Weber-Ban, Eilika and Ban, Nenad (2008) Structural basis of enzyme encapsulation into a bacterial nanocompartment. NATURE STRUCTURAL & MOLECULAR BIOLOGY, 15 (9). pp. 939-947. ISSN 1545-9993,
Full text not available from this repository. (Request a copy)Abstract
Compartmentalization is an important organizational feature of life. It occurs at varying levels of complexity ranging from eukaryotic organelles and the bacterial microcompartments, to the molecular reaction chambers formed by enzyme assemblies. The structural basis of enzyme encapsulation in molecular compartments is poorly understood. Here we show, using X-ray crystallographic, biochemical and EM experiments, that a widespread family of conserved bacterial proteins, the linocin-like proteins, form large assemblies that function as a minimal compartment to package enzymes. We refer to this shell-forming protein as 'encapsulin'. The crystal structure of such a particle from Thermotoga maritima determined at 3.1-angstrom resolution reveals that 60 copies of the monomer assemble into a thin, icosahedral shell with a diameter of 240 angstrom. The interior of this nanocompartment is lined with conserved binding sites for short polypeptide tags present as C-terminal extensions of enzymes involved in oxidative-stress response.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | ANGULAR RECONSTITUTION; BREVIBACTERIUM LINENS; THERMOTOGA-MARITIMA; CRYSTAL-STRUCTURES; CARBOXYSOME SHELL; PROTEIN; PEROXIDASE; RESOLUTION; FERRITIN; SEQUENCE; |
| Subjects: | 500 Science > 570 Life sciences |
| Divisions: | Biology, Preclinical Medicine > Institut für Biochemie, Genetik und Mikrobiologie > Lehrstuhl für Mikrobiologie (Archaeenzentrum) > Prof. Dr. Dina Grohmann |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 26 Oct 2020 09:58 |
| Last Modified: | 26 Oct 2020 09:58 |
| URI: | https://pred.uni-regensburg.de/id/eprint/30410 |
Actions (login required)
 |
View Item |
