protoxin

[¦prō¦täk·sən]

(biochemistry)

A chemical compound that is a precursor to a toxin.

References in periodicals archive ?

Cry protoxin structures have been documented where a Cry 3-domain protein family with similar mode of action, including Cry1Aa, was grouped.

Activity and expression of midgut proteases from Mexican and US Trichoplusia ni (Hubner) strains exposed to Bacillus thuringiensis

Pretreatment with Cry1Ac protoxin modulates the immune response, and increases the survival of Plasmodium-infected CBA/Ca mice.

Increased Oxidative Stress and Apoptosis in Splenic Tissue of Lupus-Prone (NZB/NZW) F1 Mice Infected with Live but not Gamma Irradiated Plasmodium chabaudi

Cao, Adsorption Thermodynamics of Toxin (65 kDa) and Protoxin (130 kDa) from Bacillus thuringiensis by Several Minerals, Int.

Fluorescence Quenching Dynamics and Mechanism of Cry1Ab Toxin from Bacillus thuringiensis by Different Metal Ions

Vip3A protoxin was expressed in Escherichia coli and purified as described by Yu et al.

Fluctuating Asymmetry, Morphological Changes and Flight Muscle Ratio in a Vip3A Resistant Sub-population of Heliothis virescens (WF06)

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

Genotyping characterization on clostridium perfringens affecting laboratory animals

6) supplemented with 10 mM dithiothreitol (DTT), the protoxin concentration was determined by the Coomassie protein assay reagent (Pierce, Rockford, IL) with BSA as standard.

Caracterizacion de una delta endotoxina mutante de Bacillus thuringiensis con estabilidad y toxicidad aumentadas

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.

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

Endogenously occurring beta-carbolines induces parkinsonism in non-primate animals: a possible causative protoxin in idiopathic Parkinson's disease.

Reflexiones sobre la biosintesis de la morfina y el Parkinson idiopatico

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.

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

RNAi-mediated knockdown of a Spodoptera frugiperda trypsin-like serine-protease gene reduces susceptibility to a Bacillus thuringiensis CrylCal protoxin.

RNA interference mediated serine protease gene (Spbtry1) knockdown affects growth and mortality in the soybean pod borer (Lepidoptera: Olethreutidae)

17] showed that protoxin crude extracts of vip3Aa and was toxic to S.

Cloning, expression and bioassay of Vip3A protein from an indigenous Bacillus thuringiensis isolate

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