Properties of a 72-kilodalton mosquitocidal protein from Bacillus thuringiensis subsp. morrisoni PG-14 expressed in B. thuringiensis subsp. kurstaki by using the shuttle vector pHT3101

Article Abstract:

pHT3101-Bacillus thuringiensis expression system yielded protein inclusions comparable to those produced by the natural host, Bacillus thuringiensis subsp. morrisoni. This expression system obtained a 72- kilodalton mosquitocidal protein with inclusions easily characterized by phase-contrast microscopy. Bioassays showed toxicity of purified and cloned mosquitocidal proteins against mosquito larvae. These results demonstrate the applicability of using a closely related host and suitable vector as an expression system.

Methods, Physiological aspects, Genetic regulation, Protein engineering, Microbial insecticides

---

Cloning and characterization of a cytolytic and mosquitocidal delta-endotoxin from Bacillus thuringiensis subsp. jegathesan

Article Abstract:

The cloning of an alpha-endotoxin from Bacillus thuringiensis subsp. jegathesan is presented. The toxin can be used as biological control agent against mosquitos. The cloned endotoxin does not react to the antibody raised against the Cyt1Aa protein. The amino acid sequence is 31% identical to the Cyt1Aa protein and 66% identical to the Cyt2Aa protein. Bacillus thuringiensis is a gram-positive bacterium that is used in controlling insects harmful to man and plants.

Bacterial genetics, Endotoxins

---

Novel vip3-related protein from Bacillus thuringiensis

Article Abstract:

A novel vip3-related gene was identified in Bacillus thuringiensis that was 2,406 bp long and codes for a 91-kDa protein (801 amino acids). The novel vip3-related protein exhibits between 61 and 62% similarity with vip3A proteins and is the designated vip3Ba1.

Science & research, Nucleotide sequence, Base sequence

Similar abstracts:

• Abstracts: Contribution of the 65-kilodalton protein encoded by the cloned gene cry19A to the mosquitocidal activity of Bacillus thuringiensis subsp. jegathesan
• Abstracts: Expression of the mosquitocidal toxins of Bacillus sphaericus and Bacillus thuringiensis subsp. israelensis by recombinant Caulobacter crescentus, a vehicle for biological control of aquatic insect larvae
• Abstracts: Purification and characterization of an alpha-L-arabinofuranosidase from Butyrivibrio fibrisolvens GS113. Degradation and utilization by Butyrivibrio fibrisolvens H17c of Xylans with different chemical and physical properties
• Abstracts: Molecular characterization of an Aspergillus parasiticus dehydrogenase gene, norA, located on the aflatoxin biosynthesis gene cluster
• Abstracts: Identification of two proline transport systems in Staphylococcus aureus andtheir possible roles in osmoregulation

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.