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PMID:3067078
| Citation |
Khosla, C and Bailey, JE (1988) The Vitreoscilla hemoglobin gene: molecular cloning, nucleotide sequence and genetic expression in Escherichia coli. Mol. Gen. Genet. 214:158-61 |
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| Abstract |
Vitreoscilla hemoglobin is involved in oxygen metabolism of this bacterium, possibly in an unusual role for a microbe. We have isolated the Vitreoscilla hemoglobin structural gene from a pUC19 genomic library using mixed oligodeoxy-nucleotide probes based on the reported amino acid sequence of the protein. The gene is expressed in Escherichia coli from its natural promoter as a major cellular protein. The nucleotide sequence, which is in complete agreement with the known amino acid sequence of the protein, suggests the existence of promoter and ribosome binding sites with a high degree of homology to consensus E. coli upstream sequences. In the case of at least some amino acids, a codon usage bias can be detected which is different from the biased codon usage pattern in E. coli. The downstream sequence exhibits homology with the 3' end sequences of several plant leghemoglobin genes. E. coli cells expressing the gene contain greater than fivefold more heme than controls. |
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| Keywords |
Amino Acid Sequence; Base Sequence; Cloning, Molecular; Escherichia coli/genetics; Escherichia coli/growth & development; Gene Expression Regulation; Genes; Genes, Bacterial; Hemoglobins/biosynthesis; Hemoglobins/genetics; Hemoglobins/metabolism; Molecular Sequence Data; Restriction Mapping; Thiotrichaceae/genetics; Transformation, Bacterial |
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Significance
Annotations
| Gene product | Qualifier | GO Term | Evidence Code | with/from | Aspect | Extension | Notes | Status |
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