protoxin

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Epsilon toxin is protease activated protoxin that produced mainly by C.

This toxin is secreted as relatively inactive protoxin and is activated to a potent heat-laible toxin with the loss of an N-terminal peptide by a proteolytic enzyme produced by the organism [8].

Genotyping characterization on clostridium perfringens affecting laboratory animals

The pure protoxin was eluted by a linear 0-80 per cent ethylene glycol gradient and converted to the 65 kDa mature VCC by passing through a column of bovine trypsin immobilized to Sepharose CL-4B (Sigma, USA) in 100 mM Tris-HCl buffer containing 10 mM Ca[Cl.

Crystal structure of the Vibrio cholerae cytolysin (VCC) protoxin and its assembly into a heptameric transmembrane pore.

The role of C-terminus carbohydrate-binding domain of Vibrio cholerae haemolysin/cytolysin in the conversion of the pre-pore [beta]-barrel oligomer to a functional diffusion channel

Bacillus thuringiensis Cry1Ac protoxin is a potent systemic and mucosal adjuvant.

Key issues for the assessment of the allergenic potential of genetically modified foods: breakout group reports. (Genetically Modified Foods Mini-Monograph)

METHODS: cry4, a mosquitocidal protoxin gene, was amplified by E-PCR with family and type primers that were designed from known conserved and unique regions, respectively.

thuringiensis for novel protoxin genes is to have a method that can rapidly and accurately characterize the novel subclass genes.

To test the efficiency and specificity of E-PCR with DGGE approach, we used a mosquitocidal protoxin class gene, cry4, in Bacillus thuringiensis as subject.

israelensis was used as a positive control strain, because of its well studied protoxin genes.

Exclusive-PCR with denaturing gradient gel electrophoresis: a new approach to identify novel alleles

Bacillus thuringiensis (Bt) Cry1Ab, the protoxin sequence from Bt serovar aizawai, consists of a single 610-amino-acid polypeptide (accession no.

A human dendritic cell-based method to identify CD[4.sup.+] T-cell epitopes in potential protein allergens. (Mini-Monograph)

Bt's protoxins are harmless to people, livestock, and most beneficial insects such as bees.

Banking on Bt: germplasm collection helps secure potent future for natural insecticide

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