Abstract:
:A genomic clone bank of Acetobacter polyoxogenes NBI1028 constructed in Escherichia coli by use of the expression vector pUC18 was screened with antibody raised against membrane-bound aldehyde dehydrogenase (ALDH; 75 kilodaltons [kDa]) from A. polyoxogenes NBI1028. A clone that synthesized a 41-kDa protein cross-reactive with anti-ALDH antibody was isolated. For cloning of the full-length ALDH structural gene, a cosmid gene bank was screened by Southern blot hybridization with the cloned DNA as a probe, and subcloning from the positive cosmid clone was performed with shuttle vector pMV24. Plasmid pAL25, containing the full-length ALDH structural gene, was isolated and expressed in both E. coli and Acetobacter aceti to produce a fused protein (78 kDa) with a short NH(2)-terminal beta-galactosidase peptide. pAL25 conferred ALDH production on a mutant of A. aceti lacking the enzyme activity. Transformation of A. aceti subsp. xylinum NBI2099 with pAL25 caused 2- and 1.4-fold increases in the production rate and in the maximum concentration of acetic acid in submerged fermentation, respectively.
journal_name
Appl Environ Microbioljournal_title
Applied and environmental microbiologyauthors
Fukaya M,Tayama K,Tamaki T,Tagami H,Okumura H,Kawamura Y,Beppu Tdoi
10.1128/AEM.55.1.171-176.1989keywords:
subject
Has Abstractpub_date
1989-01-01 00:00:00pages
171-6issue
1eissn
0099-2240issn
1098-5336journal_volume
55pub_type
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abstract::[This corrects the article on p. 514 in vol. 55.]. ...
journal_title:Applied and environmental microbiology
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doi:
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