Summary
The appearance of a protein (association factor I) in ribosomes from Bacillus stearothermophilus at stationary phase of growth is described. Association factor I is present on 30S subunits and 30S–50S ribosomal couples, but not on 50S subunits. This protein is responsible for the low levels of polyphenylalanine synthesis shown by stationary phase ribosomes. Association factor I is able to bind to free 30S–50S ribosomal couples but not to polysomes, and exerts its effect by inhibiting the initiation step of protein synthesis. Ribosomes preincubated with association factor I have a decreased ability for polypeptide snythesis directed phage mRNA or poly(U).
Similar content being viewed by others
References
Li, L. and Umbreit, W. W., 1966. Biochim. Biophys. Acta 119, 392–399.
cheps, R., Wax, R. and Revel, M., 1971. Biochim. Biophys. Acta 232, 140–150.
González, N. S., Goldemberg, S. H. and Algranati, I. D., 1968. Biochim. Biophys. Acta 166, 760–762.
Ramagropal, S. and Subramanian, A. R., 1975. J. Mol. Biol. 94, 633–641.
Subramanian, A. R., Haase, C. and Giesen, M., 1976. Eur. J. Biochem. 67, 591–601.
García-Patrone, M., 1978. FEBS Lett. 92, 263–267.
García-Patrone, M., González, N. S. and Algranati, I. D., 1975. Biochim. Biophys. Acta 395, 373–380.
Algranati, I. D., González, N. S. and Bade, E. G., 1969. Proc. Natl. Acad. Sci. USA 62, 574–580.
Bade, E. G., González, N. S. and Algranati, I. D., 1969. Proc. Natl. Acad. Sci. USA 64, 654–660.
Lodish, H. F. and Robertson, H. G., 1969. Cold Spring Harbor Symp. Quant. Biol. XXXIV, 655–673.
Kay, A. C., Graffe, M. and Crumberg-Manago,., 1976. Biochimie 58, 183–199.
Schreier, M. H. and Noll, H., 1970. Nature 227, 128–133.
Ono-Iwashita, Y., Oshima, T. and Imahori, K., 1975. Arch. Biochem. Biophys. 171, 490–499.
Igarashi, K., Hara, K., Watanabe, Y., Hirose, S. and Takeda, Y., 1975. Biochem. Biopbys. Res. Commun. 64, 897–904.
Studier, F. W., 1973. J. Mol. Biol. 79, 237–248.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Garcia-Patrone, M. Mechanism of protein synthesis inhibition during stationary phase in Bacillus stearothermophil US . Mol Cell Biochem 31, 97–103 (1980). https://doi.org/10.1007/BF00240815
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF00240815