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Synthesis and processing of an Escherichia coli alkaline phosphatase precursor in vitro.
Open accessAbstract
Alkaline phosphatase [orthophosphoric-monoester phosphohydrolase (alkaline optimum), EC 3.1.3.1] of E. coli was synthesized in a cell-free system, and the size of the direct translation product was analyzed. The product has a higher molecular weight than the mature alkaline phosphatase found in the periplasm. The direct translation product can be processed to the mature size by an E. coli membrane fraction; the processing activity copurifies with the outer-membrane fraction. The presumed precursor can dimerize to form active enzyme without being processed, and the resultant enzyme appears to be more hydrophobic than the mature enzyme. These findings are discussed in connection with the "signal hypothesis" proposed for the excretion of proteins across membranes.
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Citations
Cited by
Protein translocation across the eukaryotic endoplasmic reticulum and bacterial plasma membranes.
Rapoport, T. A. (2007) · Nature · doi:10.1038/nature06384 · Cited by 977
Linkage map of Escherichia coli K-12, edition 6
Bachmann, B., & Low, K. B. (1980) · Microbiological Reviews · doi:10.1128/mmbr.44.1.1-56.1980 · Cited by 938
Secretion and Membrane Localization of Proteins in Escherichia Coli
Inouye, M., Halegoua, S., & Beckwith, J. (1980) · Critical Reviews in Biochemistry · doi:10.3109/10409238009105465 · Cited by 401
Self-citationMechanisms of protein localization
Silhavy, T. J., Benson, S. A., & Emr, S. D. (1983) · Microbiological Reviews · doi:10.1128/mmbr.47.3.313-344.1983 · Cited by 326
Mutations that alter the signal sequence of alkaline phosphatase in Escherichia coli
Michaelis, S., Inouye, H., Oliver, D., & Beckwith, J. (1983) · Journal of Bacteriology · doi:10.1128/jb.154.1.366-374.1983 · Cited by 277
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Metadata
- Authors
- Inouye, H., & Beckwith, J.
- Venue
- Proceedings of the National Academy of Sciences
- Published
- 1977-04
- Volume
- 74
- Issue
- 4
- Pages
- 1440-1444
- ISSN
- 0027-8424 (ISSN-L)
- 1091-6490
- OpenAlex
- W2089366909
- Cited by
- 170
- References
- 0
- FWCI
- 22.92
- Type
- journal article
- Language
- en
- Open access
- green
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