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PMID:3049537
| Citation |
Matsuoka, M and McFadden, BA (1988) Isolation, hyperexpression, and sequencing of the aceA gene encoding isocitrate lyase in Escherichia coli. J. Bacteriol. 170:4528-36 |
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| Abstract |
A structural gene for isocitrate lyase was isolated from a cosmid containing an ace locus of the Escherichia coli chromosome. Cloning and expression under control of the tac promoter in a multicopy plasmid showed that a 1.7-kilobase-pair DNA segment was sufficient for complementation of an aceA deletion mutation and overproduction of isocitrate lyase. DNA sequence analysis of the cloned gene and N-terminal protein sequencing of the cloned and wild-type enzymes revealed an entire aceA gene which encodes a 429-amino-acid residue polypeptide whose C-terminus is histidine. The deduced amino acid sequence for the 47.2-kilodalton subunit of E. coli isocitrate lyase could be aligned with that for the 64.8-kilodalton subunit of the castor bean enzyme with 39% identity except for limited N- and C-terminal regions and a 103-residue stretch that was unique for the plant enzyme and started approximately in the middle of that peptide. |
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| Keywords |
Amino Acid Sequence; Base Sequence; Cloning, Molecular; Escherichia coli/enzymology; Escherichia coli/genetics; Gene Expression Regulation; Genes, Bacterial; Isocitrate Lyase/genetics; Molecular Sequence Data; Oxo-Acid-Lyases/genetics; Structure-Activity Relationship |
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Significance
Annotations
| Gene product | Qualifier | GO Term | Evidence Code | with/from | Aspect | Extension | Notes | Status |
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See also
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