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Four Lepidoptera-specific reference strains of Bacillus thuringiensis, belonging to serovars sumiyoshiensis (H3a:3d), fukuokaensis (H3a:3d:3e), darmstadiensis (H10a:10b) and japonensis (H23), which produce spherical parasporal inclusions, were examined for comparative characterization of delta-endotoxins. SDS-PAGE profiles of the alkali-solubilized(More)
The β-barrel assembly machinery (BAM) complex of Escherichia coli is a multiprotein machine that catalyzes the essential process of assembling outer membrane proteins. The BAM complex consists of five proteins: one membrane protein, BamA, and four lipoproteins, BamB, BamC, BamD, and BamE. Here, we report the first crystal structure of a Bam lipoprotein(More)
β-Barrel proteins found in the outer membrane of Gram-negative bacteria serve a variety of cellular functions. Proper folding and assembly of these proteins are essential for the viability of bacteria and can also play an important role in virulence. The β-barrel assembly machinery (BAM) complex, which is responsible for the proper assembly of β-barrels(More)
In Gram-negative bacteria, the BAM (β-barrel assembly machinery) complex catalyzes the essential process of assembling outer membrane proteins. The BAM complex in Escherichia coli consists of five proteins: one β-barrel membrane protein, BamA, and four lipoproteins, BamB, BamC, BamD, and BamE. Despite their role in outer membrane protein biogenesis, there(More)
In Escherichia coli, the BAM complex catalyzes the essential process of assembling outer membrane proteins (OMPs). This complex consists of five proteins: one membrane-bound protein, BamA, and four lipoproteins, BamB, BamC, BamD, and BamE. Despite their importance in OMP biogenesis, there is currently a lack of functional and structural information on the(More)
In Gram-negative bacteria, the BAM complex catalyzes the essential process of assembling outer membrane proteins. The BAM complex in Escherichia coli consists of five proteins: one β-barrel membrane protein, BamA, and four lipoproteins, BamB, BamC, BamD and BamE. Here, the crystal structure of the C-terminal domain of E. coli BamC (BamC(C): Ala224-Ser343)(More)
BamB, BamC, BamD, and BamE are lipoproteins that, along with the integral membrane protein BamA, form the β-barrel assembly machinery (BAM) complex in the outer-membrane of Gram-negative bacteria. Elucidating the roles that these lipoproteins play in the β-barrel assembly process requires both structural and functional studies that rely on milligram(More)
b-Barrel proteins found in the outer membrane of Gram-negative bacteria serve a variety of cellular functions. Proper folding and assembly of these proteins are essential for the viability of bacteria and can also play an important role in virulence. The b-barrel assembly machinery (BAM) complex, which is responsible for the proper assembly of b-barrels(More)
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