Abstract
In vaccinia virus-infected cell cultures, cellular protein synthesis was inhibited 50% at 2 hr postinfection (PI) and 80 to 90% by 4 hr PI. Input virus was responsible for this inhibition. Five early proteins, coded for by the viral genome, could be detected at 2 to 3 hr PI. Normally, their synthesis did not continue beyond 6 hr PI, at which time synthesis of a different set of proteins began. When DNA replication was blocked, synthesis of these early proteins continued until 9 to 12 hr PI. The bulk of the proteins which were incorporated into mature virus were synthesized at 8 hr PI and thereafter. The time of their formation was close to the time at which virus maturation occurred. However, 15% of the protein found in mature virus was synthesized early in the infectious cycle. The quantity of “early viral protein” which was not incorporated into mature virus was almost as large as the quantity of viral protein which did appear in mature virus. The “early” and “late” proteins could be shown to have separate and distinct immunological properties. The role of this large quantity of “early” protein is discussed.
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- CROWLE A. J. A simplified micro double-diffusion agar precipitin technique. J Lab Clin Med. 1958 Nov;52(5):784–787. [PubMed] [Google Scholar]
- DALES S., SIMINOVITCH L. The development of vaccinia virus in Earle's L strain cells as examined by electron microscopy. J Biophys Biochem Cytol. 1961 Aug;10:475–503. doi: 10.1083/jcb.10.4.475. [DOI] [PMC free article] [PubMed] [Google Scholar]
- EAGLE H. Amino acid metabolism in mammalian cell cultures. Science. 1959 Aug 21;130(3373):432–437. doi: 10.1126/science.130.3373.432. [DOI] [PubMed] [Google Scholar]
- Jungwirth C., Joklik W. K. Studies on "early" enzymes in HeLa cells infected with vaccinia virus. Virology. 1965 Sep;27(1):80–93. doi: 10.1016/0042-6822(65)90145-5. [DOI] [PubMed] [Google Scholar]
- NOYES W. F. Further studies on the structure of vaccinia virus. Virology. 1962 Dec;18:511–516. doi: 10.1016/0042-6822(62)90051-x. [DOI] [PubMed] [Google Scholar]
- PLANTEROSE D. N., NISHIMURA C., SALZMAN N. P. The purification of vaccinia virus from cell cultures. Virology. 1962 Oct;18:294–301. doi: 10.1016/0042-6822(62)90016-8. [DOI] [PubMed] [Google Scholar]
- Penman S., Scherrer K., Becker Y., Darnell J. E. POLYRIBOSOMES IN NORMAL AND POLIOVIRUS-INFECTED HELA CELLS AND THEIR RELATIONSHIP TO MESSENGER-RNA. Proc Natl Acad Sci U S A. 1963 May;49(5):654–662. doi: 10.1073/pnas.49.5.654. [DOI] [PMC free article] [PubMed] [Google Scholar]
- SALZMAN N. P., SHATKIN A. J., SEBRING E. D. THE SYNTHESIS OF A DNA-LIKE RNA IN THE CYTOPLASM OF HELA CELLS INFECTED WITH VACCINIA VIRUS. J Mol Biol. 1964 Mar;8:405–416. doi: 10.1016/s0022-2836(64)80204-7. [DOI] [PubMed] [Google Scholar]
- SALZMAN N. P. The rate of formation of vaccinia deoxyribonucleic acid and vaccinia virus. Virology. 1960 Jan;10:150–152. doi: 10.1016/0042-6822(60)90015-5. [DOI] [PubMed] [Google Scholar]
- SCHARFF M. D., SHATKIN A. J., LEVINTOW L. ASSOCIATION OF NEWLY FORMED VIRAL PROTEIN WITH SPECIFIC POLYRIBOSOMES. Proc Natl Acad Sci U S A. 1963 Oct;50:686–694. doi: 10.1073/pnas.50.4.686. [DOI] [PMC free article] [PubMed] [Google Scholar]
- SHATKIN A. J. ACTINOMYCIN D AND VACCINIA VIRUS INFECTION OF HELA CELLS. Nature. 1963 Jul 27;199:357–358. doi: 10.1038/199357a0. [DOI] [PubMed] [Google Scholar]
- SHATKIN A. J., SALZMAN N. P. Deoxyribonucleic acid synthesis in vaccinia virus-infected HeLa cells. Virology. 1963 Apr;19:551–560. doi: 10.1016/0042-6822(63)90050-3. [DOI] [PubMed] [Google Scholar]
- SHATKIN A. J. The formation of vaccinia virus protein in the presence of 5-fluorodeoxyuridine. Virology. 1963 Jun;20:292–301. doi: 10.1016/0042-6822(63)90118-1. [DOI] [PubMed] [Google Scholar]
- WESTWOOD J. C., HARRIS W. J., ZWARTOUW H. T., TITMUSS D. H., APPLEYARD G. STUDIES ON THE STRUCTURE OF VACCINIA VIRUS. J Gen Microbiol. 1964 Jan;34:67–78. doi: 10.1099/00221287-34-1-67. [DOI] [PubMed] [Google Scholar]
- WESTWOOD J. C., ZWARTOUW H. T., APPLEYARD G., TITMUSS D. H. COMPARISON OF THE SOLUBLE ANTIGENS AND VIRUS PARTICLE ANTIGENS OF VACCINIA VIRUS. J Gen Microbiol. 1965 Jan;38:47–53. doi: 10.1099/00221287-38-1-47. [DOI] [PubMed] [Google Scholar]
- ZWARTOUW H. T., WESTWOOD J. C., HARRIS W. J. ANTIGENS FROM VACCINIA VIRUS PARTICLES. J Gen Microbiol. 1965 Jan;38:39–45. doi: 10.1099/00221287-38-1-39. [DOI] [PubMed] [Google Scholar]