protoxin

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.
Pretreatment with Cry1Ac protoxin modulates the immune response, and increases the survival of Plasmodium-infected CBA/Ca mice.
Cao, Adsorption Thermodynamics of Toxin (65 kDa) and Protoxin (130 kDa) from Bacillus thuringiensis by Several Minerals, Int.
Epsilon toxin is protease activated protoxin that produced mainly by C.
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.
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.
Endogenously occurring beta-carbolines induces parkinsonism in non-primate animals: a possible causative protoxin in idiopathic Parkinson's disease.
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.
RNAi-mediated knockdown of a Spodoptera frugiperda trypsin-like serine-protease gene reduces susceptibility to a Bacillus thuringiensis CrylCal protoxin.
17] showed that protoxin crude extracts of vip3Aa and was toxic to S.