Comparison of the lipoprotein gene among the enterobacteriaceae. DNA sequence of Morganella morganii lipoprotein gene and its expression in Escherichia coli.

Y. X. Huang, G. Ching, Masayori Inouye

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Abstract

A DNA sequence of 532 base pairs encompassing the entire Morganella morganii lipoprotein gene (lpp) was determined. Sequence comparisons of the M. morganii lpp gene with the lpp genes from Escherichia coli, Serratia marcescens, and Erwinia amylovora reveal that the M. morganii lpp gene is more distantly related to the E. coli lpp gene than any of the other lpp genes examined. Between the E. coli and M. morganii lpp genes, the following homologies were found: 44% in the promoter region (bases, -45 to -1), 88% in the 5'-end untranslated region of the mRNA, 58% in the signal sequence coding region, 75% in the coding region for the first 51 and 43% for the last 7 amino acid residues. Upstream of the promoter region and downstream of the termination codon, there are extensive insertions, deletions, and base substitutions. In spite of the differences in the DNA sequences, the lipoprotein structure was found to be highly conserved except for the carboxyl-terminal sequence of 7 amino residues. The coding region of the M. morganii lpp gene including the signal sequence was inserted into an expression cloning vector so that the production of the M. morganii lipoprotein could be induced in E. coli by a lac inducer, isopropyl-beta-D-thioglactoside. It was found that when induced, the M. morganii prolipoprotein was apparently secreted normally across the E. coli cytoplasmic membrane, modified with glycerol and palmitic acid, processed to the mature lipoprotein, and assembled in the E. coli outer membrane. The bound form covalently linked to the peptidoglycan was also found.

Original languageEnglish (US)
Pages (from-to)8139-8145
Number of pages7
JournalJournal of Biological Chemistry
Volume258
Issue number13
StatePublished - Jul 10 1983
Externally publishedYes

Fingerprint

Morganella morganii
DNA sequences
Enterobacteriaceae
Escherichia coli
Lipoproteins
Genes
Gene Expression
Protein Sorting Signals
Genetic Promoter Regions
Erwinia amylovora
Untranslated Regions
Membranes
Genetic Vectors
Serratia marcescens
Palmitic Acid
Peptidoglycan
Terminator Codon
5' Untranslated Regions

All Science Journal Classification (ASJC) codes

  • Biochemistry
  • Molecular Biology
  • Cell Biology

Cite this

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title = "Comparison of the lipoprotein gene among the enterobacteriaceae. DNA sequence of Morganella morganii lipoprotein gene and its expression in Escherichia coli.",
abstract = "A DNA sequence of 532 base pairs encompassing the entire Morganella morganii lipoprotein gene (lpp) was determined. Sequence comparisons of the M. morganii lpp gene with the lpp genes from Escherichia coli, Serratia marcescens, and Erwinia amylovora reveal that the M. morganii lpp gene is more distantly related to the E. coli lpp gene than any of the other lpp genes examined. Between the E. coli and M. morganii lpp genes, the following homologies were found: 44{\%} in the promoter region (bases, -45 to -1), 88{\%} in the 5'-end untranslated region of the mRNA, 58{\%} in the signal sequence coding region, 75{\%} in the coding region for the first 51 and 43{\%} for the last 7 amino acid residues. Upstream of the promoter region and downstream of the termination codon, there are extensive insertions, deletions, and base substitutions. In spite of the differences in the DNA sequences, the lipoprotein structure was found to be highly conserved except for the carboxyl-terminal sequence of 7 amino residues. The coding region of the M. morganii lpp gene including the signal sequence was inserted into an expression cloning vector so that the production of the M. morganii lipoprotein could be induced in E. coli by a lac inducer, isopropyl-beta-D-thioglactoside. It was found that when induced, the M. morganii prolipoprotein was apparently secreted normally across the E. coli cytoplasmic membrane, modified with glycerol and palmitic acid, processed to the mature lipoprotein, and assembled in the E. coli outer membrane. The bound form covalently linked to the peptidoglycan was also found.",
author = "Huang, {Y. X.} and G. Ching and Masayori Inouye",
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T1 - Comparison of the lipoprotein gene among the enterobacteriaceae. DNA sequence of Morganella morganii lipoprotein gene and its expression in Escherichia coli.

AU - Huang, Y. X.

AU - Ching, G.

AU - Inouye, Masayori

PY - 1983/7/10

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N2 - A DNA sequence of 532 base pairs encompassing the entire Morganella morganii lipoprotein gene (lpp) was determined. Sequence comparisons of the M. morganii lpp gene with the lpp genes from Escherichia coli, Serratia marcescens, and Erwinia amylovora reveal that the M. morganii lpp gene is more distantly related to the E. coli lpp gene than any of the other lpp genes examined. Between the E. coli and M. morganii lpp genes, the following homologies were found: 44% in the promoter region (bases, -45 to -1), 88% in the 5'-end untranslated region of the mRNA, 58% in the signal sequence coding region, 75% in the coding region for the first 51 and 43% for the last 7 amino acid residues. Upstream of the promoter region and downstream of the termination codon, there are extensive insertions, deletions, and base substitutions. In spite of the differences in the DNA sequences, the lipoprotein structure was found to be highly conserved except for the carboxyl-terminal sequence of 7 amino residues. The coding region of the M. morganii lpp gene including the signal sequence was inserted into an expression cloning vector so that the production of the M. morganii lipoprotein could be induced in E. coli by a lac inducer, isopropyl-beta-D-thioglactoside. It was found that when induced, the M. morganii prolipoprotein was apparently secreted normally across the E. coli cytoplasmic membrane, modified with glycerol and palmitic acid, processed to the mature lipoprotein, and assembled in the E. coli outer membrane. The bound form covalently linked to the peptidoglycan was also found.

AB - A DNA sequence of 532 base pairs encompassing the entire Morganella morganii lipoprotein gene (lpp) was determined. Sequence comparisons of the M. morganii lpp gene with the lpp genes from Escherichia coli, Serratia marcescens, and Erwinia amylovora reveal that the M. morganii lpp gene is more distantly related to the E. coli lpp gene than any of the other lpp genes examined. Between the E. coli and M. morganii lpp genes, the following homologies were found: 44% in the promoter region (bases, -45 to -1), 88% in the 5'-end untranslated region of the mRNA, 58% in the signal sequence coding region, 75% in the coding region for the first 51 and 43% for the last 7 amino acid residues. Upstream of the promoter region and downstream of the termination codon, there are extensive insertions, deletions, and base substitutions. In spite of the differences in the DNA sequences, the lipoprotein structure was found to be highly conserved except for the carboxyl-terminal sequence of 7 amino residues. The coding region of the M. morganii lpp gene including the signal sequence was inserted into an expression cloning vector so that the production of the M. morganii lipoprotein could be induced in E. coli by a lac inducer, isopropyl-beta-D-thioglactoside. It was found that when induced, the M. morganii prolipoprotein was apparently secreted normally across the E. coli cytoplasmic membrane, modified with glycerol and palmitic acid, processed to the mature lipoprotein, and assembled in the E. coli outer membrane. The bound form covalently linked to the peptidoglycan was also found.

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