Comparative Study
The amino acid sequence of a crystal protein from Bacillus thuringiensis deduced from the DNA base sequence
- PMID: 2581950
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Comparative Study
The amino acid sequence of a crystal protein from Bacillus thuringiensis deduced from the DNA base sequence
J Biol Chem.
.
Free article
Abstract
We have determined the nucleotide sequence of a 4222-base segment of DNA which contains the promoter, the coding region, and the terminator of a crystal protein gene cloned from a Bacillus thuringiensis plasmid. A sequence of 1176 amino acids encoding a Mr 133,500 peptide was deduced from the single open reading frame. This protein-coding region was analyzed for codon usage, predicted hydropathy, and predicted secondary structure. Examination of the base sequence revealed the presence of several inverted and direct repeats located in both the coding and noncoding regions. S1 nuclease mapping was used to locate the transcription termination point at a site following a potentially very stable stem-and-loop structure.
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