Abstract
Escherichia coli K-12 minicells were employed to investigate the biosynthesis of plasmid-encoded, heat-labile enterotoxin of E. coli. Two polypeptide species related to the B subunit of the toxin were expressed in the minicells. One of these polypeptides (molecular weight, 11,500) was immunoprecipitated by antiserum to cholera toxin. Because the B subunits of heat-labile enterotoxin and cholera toxin have common antigenic sites, we concluded that this species was the mature B subunit. The larger polypeptide (molecular weight, 13,000) is likely to be a precursor of the B subunit because it could be chased into the mature form. This conversion was inhibited by compounds which dissipate proton motive force, suggesting that processing requires energy.
References
28
Referenced
89
-
Cassel , D. , and T. Pfeuffer . 1978 . Mechanism of cholera toxin action: covalent modification ofguanyl nucleotidebinding protein of adenylate cyclase system . Proc. Natl. Acad. Sci. 75 : 2669 - 2673 .
(
10.1073/pnas.75.6.2669
) / Proc. Natl. Acad. Sci. / Mechanism of cholera toxin action: covalent modification ofguanyl nucleotidebinding protein of adenylate cyclase system by Cassel D. (1978) -
Clements , J. D. , and R. A. Finkelstein . 1979 . Isolation and characterization of homogenous heat-labile enterotoxins with high specific activity from Escherichia coli cultures . Infect. Immun. 24 : 760 - 769 .
(
10.1128/IAI.24.3.760-769.1979
) / Infect. Immun. / Isolation and characterization of homogenous heat-labile enterotoxins with high specific activity from Escherichia coli cultures by Clements J. D. (1979) -
Dallas , W. S. , and S. Falkow . 1979 . The molecular nature of heat-labile enterotoxin (LT) of Escherichia coli . Nature (London) 279 : 406 - 407 .
(
10.1038/277406a0
) / Nature (London) / The molecular nature of heat-labile enterotoxin (LT) of Escherichia coli by Dallas W. S. (1979) -
Dallas , W. S. , and S. Falkow . 1980 . Amino acid sequence homology between cholera toxin and Escherichia coli heat-labile toxin . Nature (London) 288 : 499 - 501 .
(
10.1038/288499a0
) / Nature (London) / Amino acid sequence homology between cholera toxin and Escherichia coli heat-labile toxin by Dallas W. S. (1980) -
Date , T. , C. Zwizinski , S. Ludmerer , and W. Wickner . 1980 . Mechanisms of membrane assembly: effect of energy poisons on the conversion of soluble M13 coliphage procoat to membrane-bound coat protein . Proc. Natl. Acad. Sci. 77 : 827 - 831 .
(
10.1073/pnas.77.2.827
) / Proc. Natl. Acad. Sci. / Mechanisms of membrane assembly: effect of energy poisons on the conversion of soluble M13 coliphage procoat to membrane-bound coat protein by Date T. (1980) -
Dougan , G. , ML Saul , A. Twigg , R. Gill , and D. Sherratt . 1979 . Polypeptides expressed in Escherichia coli K-12 minicells by transposition elements Tnl and Tn 3 . J. Bacteriol. 138 : 48 - 54 .
(
10.1128/JB.138.1.48-54.1979
) / J. Bacteriol. / Polypeptides expressed in Escherichia coli K-12 minicells by transposition elements Tnl and Tn 3 by Dougan G. (1979) - Elder , J. HE , R. A. Pickett , J. Hampton , and R. A. Lerner . 1977 . Radioiodination of proteins in single polyacrylamide gel slices . J. Biol. Chem. 252 : 6510 - 6516 . / J. Biol. Chem. / Radioiodination of proteins in single polyacrylamide gel slices by Elder J. HE (1977)
- Frazer , A. C. , and R. Curtiss m. 1978 . Production, properties, and utility of bacterial minicells . Curr. Top. Microbiol. Immunol. 69 : 1 - 84 . / Curr. Top. Microbiol. Immunol. / Production, properties, and utility of bacterial minicells by Frazer A. C. (1978)
-
Gyles , C. , ML So, and S. Falkow . 1974 . The enterotoxin plasmids of Eswherichia coli . J. Infect. Dis. 130 : 40 - 49 .
(
10.1093/infdis/130.1.40
) / J. Infect. Dis. / The enterotoxin plasmids of Eswherichia coli by Gyles C. (1974) -
Harold , F. M. 1972 . Conservation and transformation of energy by bacterial membranes . Bacteriol. Rev. 36 : 172 - 230 .
(
10.1128/BR.36.2.172-230.1972
) / Bacteriol. Rev. / Conservation and transformation of energy by bacterial membranes by Harold F. M. (1972) -
Hazelbauer , G. L , and S. Harayama . 1979 . Mutants in tran ion of chemotactic signals from two independent receptors of E. coli . Cell 16 : 617 - 625 .
(
10.1016/0092-8674(79)90035-7
) / Cell / Mutants in tran ion of chemotactic signals from two independent receptors of E. coli by Hazelbauer G. L (1979) -
Heppel L. A. 1971. The concept of periplasmic enzymes p. 223-247. In L. I. Rothfield (ed.) Structure and func-J. BACTERIOL.
(
10.1016/B978-0-12-598650-2.50010-7
) - tion of biological membranes. Academic Press Inc.
- New York.
-
Hindennach , I. , and U. Henning . 1975 . The major proteins of Escherichia coli outer cell membrane envelope . Eur. J. Biochem. 59 : 207 - 213 .
(
10.1111/j.1432-1033.1975.tb02443.x
) / Eur. J. Biochem. / The major proteins of Escherichia coli outer cell membrane envelope by Hindennach I. (1975) -
Holmgren J. and L Lennroth 1980. Structure and function of enterotoxins and their receptors p. 88-103. In 0. Ouchterlony and J. Holmgren (ed.) Cholera and related diarrheas 43rd Nobel Symposium Stockholm 1978. S. Karger AG Basel.
(
10.1159/000403252
) -
Inouye , M. , and S. Halegoua 1980 . Secretion and membrane localization of proteins in Escherichia coli . Crit. Rev. Biochem. 7 : 339 - 371 .
(
10.3109/10409238009105465
) / Crit. Rev. Biochem. / Secretion and membrane localization of proteins in Escherichia coli by Inouye M. (1980) -
Kunkel , S. , and D. C. Robertson . 1979 . Purification and chemical characterization of heat-labile enterotoxin produced by enterotoxigenic Escherichia coli . Infect. Immun. 25 : 586 - 596 .
(
10.1128/IAI.25.2.586-596.1979
) / Infect. Immun. / Purification and chemical characterization of heat-labile enterotoxin produced by enterotoxigenic Escherichia coli by Kunkel S. (1979) -
Lai , C. Y. 1977 . Determination of the primary structure of cholera toxin B subunit . J. Biol. Chem. 252 : 7249 - 7256 .
(
10.1016/S0021-9258(19)66962-0
) / J. Biol. Chem. / Determination of the primary structure of cholera toxin B subunit by Lai C. Y. (1977) -
Lai , C. Y. , F. Cancedda , and D. Chang . 1979 . Primary structure of cholera toxin subunit A . FEBS Lett. 100 : 85 - 89 .
(
10.1016/0014-5793(79)81136-9
) / FEBS Lett. / Primary structure of cholera toxin subunit A by Lai C. Y. (1979) -
Larson , S. H. , J. Adler , J. J. Gargus , and R. W. Hogg . 1974 . Chemomechanical coupling without ATP: the source of energy for motility and chemotaxis in bacteria . Proc. Natl. Acad. Sci. 71 : 1239 - 1243 .
(
10.1073/pnas.71.4.1239
) / Proc. Natl. Acad. Sci. / Chemomechanical coupling without ATP: the source of energy for motility and chemotaxis in bacteria by Larson S. H. (1974) - Miller J. H. 1972. Experiments in molecular genetics p. 431. Cold Spring Harbor Laboratory Cold Spring Harbor N.Y.
-
Randall , L. L , L. -G. Josefson , and S. J. S. Hardy . 1978 . Processing in vitro of precursor periplasmic proteins from Escherichia coli . Eur. J. Biochem. 92 : 411 - 415 .
(
10.1111/j.1432-1033.1978.tb12761.x
) / Eur. J. Biochem. / Processing in vitro of precursor periplasmic proteins from Escherichia coli by Randall L. L (1978) -
So , M. , W. S. Dallas , and S. Falkow . 1978 . Characterization of an Escherichia coli plasmid encoding for synthesis of heat-labile toxin: molecular cloning of the toxin . Infect. Immun. 21 : 405 - 411 .
(
10.1128/IAI.21.2.405-411.1978
) / Infect. Immun. / Characterization of an Escherichia coli plasmid encoding for synthesis of heat-labile toxin: molecular cloning of the toxin by So M. (1978) - Svennerholm A.-M. and J. Holmgren. 1978. Identifi
- cation of Escherichia coli heat labile enterotoxin by
- means of ganglioside immunosorbent assay (GMI
- ELISA) procedure. Curr. Microbiol. 1:19-27.
Dates
Type | When |
---|---|
Created | 5 years, 7 months ago (Jan. 3, 2020, 12:20 p.m.) |
Deposited | 4 years, 1 month ago (July 29, 2021, 1:39 p.m.) |
Indexed | 1 year, 7 months ago (Jan. 14, 2024, 6:26 p.m.) |
Issued | 44 years, 5 months ago (April 1, 1981) |
Published | 44 years, 5 months ago (April 1, 1981) |
Published Print | 44 years, 5 months ago (April 1, 1981) |
@article{Palva_1981, title={Synthesis of a precursor to the B subunit of heat-labile enterotoxin in Escherichia coli}, volume={146}, ISSN={1098-5530}, url={http://dx.doi.org/10.1128/jb.146.1.325-330.1981}, DOI={10.1128/jb.146.1.325-330.1981}, number={1}, journal={Journal of Bacteriology}, publisher={American Society for Microbiology}, author={Palva, E T and Hirst, T R and Hardy, S J and Holmgren, J and Randall, L}, year={1981}, month=apr, pages={325–330} }