Abstract
Several point and linker insertion mutations in two Cys-His-rich regions of adenovirus (Ad) DNA polymerase (Pol) gene have been expressed in recombinant vaccinia virus. The resulting mutant enzymes were analyzed in vitro for their effects on DNA synthesis activity, on Ad-specific initiation assays, on gel shifts of Ad origin sequences, and on interactions with adenovirus preterminal protein (pTP) and nuclear factor I (NFI). In general, mutants in downstream Cys-His sequences had a pronounced effect in these assays. Mutants in the upstream Cys-His region had a moderate effect on DNA synthesis and elongation but failed to make dCMP-pTP initiation complexes and failed to make specific shifted complexes in a gel retardation assay. These mutants could still bind to pTP and NFI in a coimmunoprecipitation experiment, suggesting that this upstream Cys-His region of Ad Pol is involved either in specific Ad DNA origin binding or in nonspecific DNA binding. Changing residues within Cys doublets in the downstream Cys-His region had pronounced effects on many Ad Pol functions such as DNA synthesis, DNA binding, and in vitro initiation; however, these mutants showed little reduction in binding to pTP and NFI; mutants at other cysteines or histidines within this region of Ad Pol did not appear to have an effect on enzyme function. This observation suggests that the downstream Cys-His region of Ad Pol is important for DNA binding and might fold into a Zn finger motif.
Full text
PDF![5788](https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2c7e/241454/b6f8c3f077a2/jvirol00041-0094.png)
![5789](https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2c7e/241454/b8c7943201b9/jvirol00041-0095.png)
![5790](https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2c7e/241454/f61c0aec2d96/jvirol00041-0096.png)
![5791](https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2c7e/241454/356fa30fa9e7/jvirol00041-0097.png)
![5792](https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2c7e/241454/93b4574b8fcd/jvirol00041-0098.png)
![5793](https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2c7e/241454/5824e9c720d9/jvirol00041-0099.png)
![5794](https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2c7e/241454/98b35609a621/jvirol00041-0100.png)
![5795](https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2c7e/241454/bc4710edfc2d/jvirol00041-0101.png)
![5796](https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2c7e/241454/39a39dc0d081/jvirol00041-0102.png)
Images in this article
Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Barany F. Single-stranded hexameric linkers: a system for in-phase insertion mutagenesis and protein engineering. Gene. 1985;37(1-3):111–123. doi: 10.1016/0378-1119(85)90263-x. [DOI] [PubMed] [Google Scholar]
- Berg J. M. Potential metal-binding domains in nucleic acid binding proteins. Science. 1986 Apr 25;232(4749):485–487. doi: 10.1126/science.2421409. [DOI] [PubMed] [Google Scholar]
- Berg J. M. Proposed structure for the zinc-binding domains from transcription factor IIIA and related proteins. Proc Natl Acad Sci U S A. 1988 Jan;85(1):99–102. doi: 10.1073/pnas.85.1.99. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Berg J. M. Zinc finger domains: hypotheses and current knowledge. Annu Rev Biophys Biophys Chem. 1990;19:405–421. doi: 10.1146/annurev.bb.19.060190.002201. [DOI] [PubMed] [Google Scholar]
- Bernad A., Blanco L., Lázaro J. M., Martín G., Salas M. A conserved 3'----5' exonuclease active site in prokaryotic and eukaryotic DNA polymerases. Cell. 1989 Oct 6;59(1):219–228. doi: 10.1016/0092-8674(89)90883-0. [DOI] [PubMed] [Google Scholar]
- Challberg M. D., Kelly T. J. Animal virus DNA replication. Annu Rev Biochem. 1989;58:671–717. doi: 10.1146/annurev.bi.58.070189.003323. [DOI] [PubMed] [Google Scholar]
- Challberg M. D., Kelly T. J., Jr Adenovirus DNA replication in vitro. Proc Natl Acad Sci U S A. 1979 Feb;76(2):655–659. doi: 10.1073/pnas.76.2.655. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Challberg M. D., Rawlins D. R. Template requirements for the initiation of adenovirus DNA replication. Proc Natl Acad Sci U S A. 1984 Jan;81(1):100–104. doi: 10.1073/pnas.81.1.100. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Chen C., Okayama H. High-efficiency transformation of mammalian cells by plasmid DNA. Mol Cell Biol. 1987 Aug;7(8):2745–2752. doi: 10.1128/mcb.7.8.2745. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Chen M., Horwitz M. S. Dissection of functional domains of adenovirus DNA polymerase by linker-insertion mutagenesis. Proc Natl Acad Sci U S A. 1989 Aug;86(16):6116–6120. doi: 10.1073/pnas.86.16.6116. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Chen M., Mermod N., Horwitz M. S. Protein-protein interactions between adenovirus DNA polymerase and nuclear factor I mediate formation of the DNA replication preinitiation complex. J Biol Chem. 1990 Oct 25;265(30):18634–18642. [PubMed] [Google Scholar]
- Dorsky D. I., Crumpacker C. S. Site-specific mutagenesis of a highly conserved region of the herpes simplex virus type 1 DNA polymerase gene. J Virol. 1990 Mar;64(3):1394–1397. doi: 10.1128/jvi.64.3.1394-1397.1990. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Falkner F. G., Moss B. Escherichia coli gpt gene provides dominant selection for vaccinia virus open reading frame expression vectors. J Virol. 1988 Jun;62(6):1849–1854. doi: 10.1128/jvi.62.6.1849-1854.1988. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Field J., Gronostajski R. M., Hurwitz J. Properties of the adenovirus DNA polymerase. J Biol Chem. 1984 Aug 10;259(15):9487–9495. [PubMed] [Google Scholar]
- Fuerst T. R., Moss B. Structure and stability of mRNA synthesized by vaccinia virus-encoded bacteriophage T7 RNA polymerase in mammalian cells. Importance of the 5' untranslated leader. J Mol Biol. 1989 Mar 20;206(2):333–348. doi: 10.1016/0022-2836(89)90483-x. [DOI] [PubMed] [Google Scholar]
- Fuerst T. R., Niles E. G., Studier F. W., Moss B. Eukaryotic transient-expression system based on recombinant vaccinia virus that synthesizes bacteriophage T7 RNA polymerase. Proc Natl Acad Sci U S A. 1986 Nov;83(21):8122–8126. doi: 10.1073/pnas.83.21.8122. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Gorelick R. J., Henderson L. E., Hanser J. P., Rein A. Point mutants of Moloney murine leukemia virus that fail to package viral RNA: evidence for specific RNA recognition by a "zinc finger-like" protein sequence. Proc Natl Acad Sci U S A. 1988 Nov;85(22):8420–8424. doi: 10.1073/pnas.85.22.8420. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Guggenheimer R. A., Stillman B. W., Nagata K., Tamanoi F., Hurwitz J. DNA sequences required for the in vitro replication of adenovirus DNA. Proc Natl Acad Sci U S A. 1984 May;81(10):3069–3073. doi: 10.1073/pnas.81.10.3069. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Hay R. T. The origin of adenovirus DNA replication: minimal DNA sequence requirement in vivo. EMBO J. 1985 Feb;4(2):421–426. doi: 10.1002/j.1460-2075.1985.tb03645.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Ikeda J. E., Enomoto T., Hurwitz J. Replication of adenovirus DNA-protein complex with purified proteins. Proc Natl Acad Sci U S A. 1981 Feb;78(2):884–888. doi: 10.1073/pnas.78.2.884. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Joung I., Horwitz M. S., Engler J. A. Mutagenesis of conserved region I in the DNA polymerase from human adenovirus serotype 2. Virology. 1991 Sep;184(1):235–241. doi: 10.1016/0042-6822(91)90840-8. [DOI] [PubMed] [Google Scholar]
- Kadonaga J. T., Carner K. R., Masiarz F. R., Tjian R. Isolation of cDNA encoding transcription factor Sp1 and functional analysis of the DNA binding domain. Cell. 1987 Dec 24;51(6):1079–1090. doi: 10.1016/0092-8674(87)90594-0. [DOI] [PubMed] [Google Scholar]
- Kenny M. K., Hurwitz J. Initiation of adenovirus DNA replication. II. Structural requirements using synthetic oligonucleotide adenovirus templates. J Biol Chem. 1988 Jul 15;263(20):9809–9817. [PubMed] [Google Scholar]
- Laemmli U. K. Cleavage of structural proteins during the assembly of the head of bacteriophage T4. Nature. 1970 Aug 15;227(5259):680–685. doi: 10.1038/227680a0. [DOI] [PubMed] [Google Scholar]
- Lally C., Dörper T., Gröger W., Antoine G., Winnacker E. L. A size analysis of the adenovirus replicon. EMBO J. 1984 Feb;3(2):333–337. doi: 10.1002/j.1460-2075.1984.tb01807.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Marcy A. I., Hwang C. B., Ruffner K. L., Coen D. M. Engineered herpes simplex virus DNA polymerase point mutants: the most highly conserved region shared among alpha-like DNA polymerases is involved in substrate recognition. J Virol. 1990 Dec;64(12):5883–5890. doi: 10.1128/jvi.64.12.5883-5890.1990. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Mierendorf R. C., Pfeffer D. Direct sequencing of denatured plasmid DNA. Methods Enzymol. 1987;152:556–562. doi: 10.1016/0076-6879(87)52061-4. [DOI] [PubMed] [Google Scholar]
- Mul Y. M., Van der Vliet P. C. Nuclear factor I enhances adenovirus DNA replication by increasing the stability of a preinitiation complex. EMBO J. 1992 Feb;11(2):751–760. doi: 10.1002/j.1460-2075.1992.tb05108.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Nagata K., Guggenheimer R. A., Enomoto T., Lichy J. H., Hurwitz J. Adenovirus DNA replication in vitro: identification of a host factor that stimulates synthesis of the preterminal protein-dCMP complex. Proc Natl Acad Sci U S A. 1982 Nov;79(21):6438–6442. doi: 10.1073/pnas.79.21.6438. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Nakano R., Zhao L. J., Padmanabhan R. Overproduction of adenovirus DNA polymerase and preterminal protein in HeLa cells. Gene. 1991 Sep 15;105(2):173–178. doi: 10.1016/0378-1119(91)90148-5. [DOI] [PubMed] [Google Scholar]
- Nardelli J., Gibson T. J., Vesque C., Charnay P. Base sequence discrimination by zinc-finger DNA-binding domains. Nature. 1991 Jan 10;349(6305):175–178. doi: 10.1038/349175a0. [DOI] [PubMed] [Google Scholar]
- Parks G. D., Duke G. M., Palmenberg A. C. Encephalomyocarditis virus 3C protease: efficient cell-free expression from clones which link viral 5' noncoding sequences to the P3 region. J Virol. 1986 Nov;60(2):376–384. doi: 10.1128/jvi.60.2.376-384.1986. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Rhim J. S., Cho H. Y., Huebner R. J. Non-producer human cells induced by murine sarcoma virus. Int J Cancer. 1975 Jan 15;15(1):23–29. doi: 10.1002/ijc.2910150104. [DOI] [PubMed] [Google Scholar]
- Santoro C., Mermod N., Andrews P. C., Tjian R. A family of human CCAAT-box-binding proteins active in transcription and DNA replication: cloning and expression of multiple cDNAs. Nature. 1988 Jul 21;334(6179):218–224. doi: 10.1038/334218a0. [DOI] [PubMed] [Google Scholar]
- Shu L. M., Horwitz M. S., Engler J. A. Expression of enzymatically active adenovirus DNA polymerase from cloned DNA requires sequences upstream of the main open reading frame. Virology. 1987 Dec;161(2):520–526. doi: 10.1016/0042-6822(87)90146-2. [DOI] [PubMed] [Google Scholar]
- Shu L., Pettit S. C., Engler J. A. The precise structure and coding capacity of mRNAs from early region 2B of human adenovirus serotype 2. Virology. 1988 Aug;165(2):348–356. doi: 10.1016/0042-6822(88)90579-x. [DOI] [PubMed] [Google Scholar]
- Stillman B. W., Tamanoi F., Mathews M. B. Purification of an adenovirus-coded DNA polymerase that is required for initiation of DNA replication. Cell. 1982 Dec;31(3 Pt 2):613–623. doi: 10.1016/0092-8674(82)90317-8. [DOI] [PubMed] [Google Scholar]
- Stunnenberg H. G., Lange H., Philipson L., van Miltenburg R. T., van der Vliet P. C. High expression of functional adenovirus DNA polymerase and precursor terminal protein using recombinant vaccinia virus. Nucleic Acids Res. 1988 Mar 25;16(6):2431–2444. doi: 10.1093/nar/16.6.2431. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Tamanoi F., Stillman B. W. Initiation of adenovirus DNA replication in vitro requires a specific DNA sequence. Proc Natl Acad Sci U S A. 1983 Nov;80(21):6446–6450. doi: 10.1073/pnas.80.21.6446. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Tamanoi F., Stillman B. W. The origin of adenovirus DNA replication. Curr Top Microbiol Immunol. 1984;109:75–87. doi: 10.1007/978-3-642-69460-8_3. [DOI] [PubMed] [Google Scholar]
- Temperley S. M., Hay R. T. Recognition of the adenovirus type 2 origin of DNA replication by the virally encoded DNA polymerase and preterminal proteins. EMBO J. 1992 Feb;11(2):761–768. doi: 10.1002/j.1460-2075.1992.tb05109.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Vennema H., Rijnbrand R., Heijnen L., Horzinek M. C., Spaan W. J. Enhancement of the vaccinia virus/phage T7 RNA polymerase expression system using encephalomyocarditis virus 5'-untranslated region sequences. Gene. 1991 Dec 15;108(2):201–209. doi: 10.1016/0378-1119(91)90435-E. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Vieira J., Messing J. Production of single-stranded plasmid DNA. Methods Enzymol. 1987;153:3–11. doi: 10.1016/0076-6879(87)53044-0. [DOI] [PubMed] [Google Scholar]
- Wang T. S., Wong S. W., Korn D. Human DNA polymerase alpha: predicted functional domains and relationships with viral DNA polymerases. FASEB J. 1989 Jan;3(1):14–21. doi: 10.1096/fasebj.3.1.2642867. [DOI] [PubMed] [Google Scholar]
- Wang Y. S., Woodward S., Hall J. D. Use of suppressor analysis to identify DNA polymerase mutations in herpes simplex virus which affect deoxynucleoside triphosphate substrate specificity. J Virol. 1992 Mar;66(3):1814–1816. doi: 10.1128/jvi.66.3.1814-1816.1992. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Watson C. J., Hay R. T. Expression of adenovirus type 2 DNA polymerase in insect cells infected with a recombinant baculovirus. Nucleic Acids Res. 1990 Mar 11;18(5):1167–1173. doi: 10.1093/nar/18.5.1167. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Wides R. J., Challberg M. D., Rawlins D. R., Kelly T. J. Adenovirus origin of DNA replication: sequence requirements for replication in vitro. Mol Cell Biol. 1987 Feb;7(2):864–874. doi: 10.1128/mcb.7.2.864. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Zoller M. J., Smith M. Oligonucleotide-directed mutagenesis: a simple method using two oligonucleotide primers and a single-stranded DNA template. DNA. 1984 Dec;3(6):479–488. doi: 10.1089/dna.1.1984.3.479. [DOI] [PubMed] [Google Scholar]
- van Bergen B. G., van der Ley P. A., van Driel W., van Mansfeld A. D., van der Vliet P. C. Replication of origin containing adenovirus DNA fragments that do not carry the terminal protein. Nucleic Acids Res. 1983 Apr 11;11(7):1975–1989. doi: 10.1093/nar/11.7.1975. [DOI] [PMC free article] [PubMed] [Google Scholar]