protoxin

[¦prō¦täk·sən]

(biochemistry)

A chemical compound that is a precursor to a toxin.

References in periodicals archive ?

Cry1Ac protoxin is a crystal protein produced by the bacterium Bacillus thuringiensis (Bt) during sporulation.

SIGNIFICANCE OF CROSS COMBINATIONS FOR DEVELOPING Bt COTTON VARIETIES FOR OPTIMUM GENE (CRY1AC) EXPRESSION LEVEL REQUIRED FOR BETTER BOLLWORM CONTROL

I'-endotoxin is a globular protein molecule mount up as a protoxin and released in the gut of a pest in alkaline medium.

Molecular Characterization of Cry11 Crystal Protein Gene from Bacillus thuringiensis Isolated from Different Soil Samples

The chemical protoxin MPTP (1-methyl-4-phenyl-1-2-3-6- tetrahydropyridine), which produces a clinical parkinsonian syndrome, significantly lowers retinal dopamine.

Meta-Analysis of Visual Evoked Potential and Parkinson's Disease

Ilhuicatzi-Alvarado et al., "Cry1Ac protoxin from Bacillus thuringiensis promotes macrophage activation by upregulating CD80 and CD86 and by inducing IL-6, MCP-1 and TNF-[alpha] cytokines," International Immunopharmacology, vol.

Immune Regulation of RAW264.7 Cells In Vitro by Flavonoids from Astragalus complanatus via Activating the NF-[kappa]B Signalling Pathway

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

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

Purification and Protease Digestion of Protoxin. The wild type Cry1Ac and mutant toxins were purified by the method described elsewhere (Hussain et al., 2010).

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.sub.2], pH 7.8.

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)

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