Structure of Escherichia coli BamB and its interaction with POTRA domains of BamA.
Acta Crystallogr D Biol Crystallogr
; 68(Pt 9): 1134-9, 2012 Sep.
Article
em En
| MEDLINE
| ID: mdl-22948914
ABSTRACT
In Escherichia coli, the BAM complex is essential for the assembly and insertion of outer membrane proteins (OMPs). The BAM complex is comprised of an integral ß-barrel outer membrane protein BamA and four accessory lipoproteins BamB, BamC, BamD and BamE. Here, the crystal structure of BamB is reported. The crystal of BamB diffracted to 2.0 Å with one monomer in the asymmetric unit and the structure is composed of eight-bladed ß-propeller motifs. Pull-down and Western blotting assays indicate that BamB interacts directly with the POTRA 1-3 domain of BamA and the C-terminal region of the POTRA 1-3 domain plays an important role in the interaction, while the POTRA 1-2 domain is not required for the interaction.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Proteínas da Membrana Bacteriana Externa
/
Proteínas de Escherichia coli
/
Escherichia coli
Idioma:
En
Revista:
Acta Crystallogr D Biol Crystallogr
Ano de publicação:
2012
Tipo de documento:
Article