Abstract
The HPR1 gene has been cloned by complementation of the hyperrecombination phenotype of hpr1-1 strains by using a color assay system. HPR1 is a gene that is in single copy on chromosome IV of Saccharomyces cerevisiae, closely linked to ARO1, and it codes for a putative protein of 752 amino acids (molecular mass, 88 kilodaltons). Computer searches revealed homology (48.8% conserved homology; 24.8% identity) with the S. cerevisiae TOP1 gene in an alpha-helical stretch of 129 amino acids near the carboxy-terminal region of both proteins. The ethyl methanesulfonate-induced hpr1-1 mutation is a single-base change that produces a stop codon at amino acid 559 coding for a protein that lacks the carboxy-terminal TOP1 homologous region. Haploid strains carrying deletions of the HPR1 gene show a slightly reduced mitotic growth rate and extremely high rates of intrachromosomal excision recombination (frequency, 10 to 15%) but have a undetectable effect on rDNA recombination. Double-null mutants hpr1 top1 grow very poorly. We conclude that Hpr1 is a novel eucaryotic protein, mutation of which causes an increase in mitotic intrachromosomal excision recombination, and that it may be functionally related to an activity of the topoisomerase I protein.
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Selected References
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- Adams A. E., Botstein D., Drubin D. G. A yeast actin-binding protein is encoded by SAC6, a gene found by suppression of an actin mutation. Science. 1989 Jan 13;243(4888):231–233. doi: 10.1126/science.2643162. [DOI] [PubMed] [Google Scholar]
- Aguilera A., Klein H. L. Genetic and molecular analysis of recombination events in Saccharomyces cerevisiae occurring in the presence of the hyper-recombination mutation hpr1. Genetics. 1989 Jul;122(3):503–517. doi: 10.1093/genetics/122.3.503. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Aguilera A., Klein H. L. Genetic control of intrachromosomal recombination in Saccharomyces cerevisiae. I. Isolation and genetic characterization of hyper-recombination mutations. Genetics. 1988 Aug;119(4):779–790. doi: 10.1093/genetics/119.4.779. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Aguilera A., Klein H. L. Yeast intrachromosomal recombination: long gene conversion tracts are preferentially associated with reciprocal exchange and require the RAD1 and RAD3 gene products. Genetics. 1989 Dec;123(4):683–694. doi: 10.1093/genetics/123.4.683. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Aguilera A. Mitotic gene conversion of large DNA heterologies in Saccharomyces cerevisiae. Mol Gen Genet. 1988 Mar;211(3):455–458. doi: 10.1007/BF00425700. [DOI] [PubMed] [Google Scholar]
- Albertini A. M., Hofer M., Calos M. P., Miller J. H. On the formation of spontaneous deletions: the importance of short sequence homologies in the generation of large deletions. Cell. 1982 Jun;29(2):319–328. doi: 10.1016/0092-8674(82)90148-9. [DOI] [PubMed] [Google Scholar]
- Almouzni G., Méchali M. Assembly of spaced chromatin involvement of ATP and DNA topoisomerase activity. EMBO J. 1988 Dec 20;7(13):4355–4365. doi: 10.1002/j.1460-2075.1988.tb03334.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Baltimore D. Gene conversion: some implications for immunoglobulin genes. Cell. 1981 Jun;24(3):592–594. doi: 10.1016/0092-8674(81)90082-9. [DOI] [PubMed] [Google Scholar]
- Biggin M. D., Gibson T. J., Hong G. F. Buffer gradient gels and 35S label as an aid to rapid DNA sequence determination. Proc Natl Acad Sci U S A. 1983 Jul;80(13):3963–3965. doi: 10.1073/pnas.80.13.3963. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Boram W. R., Roman H. Recombination in Saccharomyces cerevisiae: a DNA repair mutation associated with elevated mitotic gene conversion. Proc Natl Acad Sci U S A. 1976 Aug;73(8):2828–2832. doi: 10.1073/pnas.73.8.2828. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Borst P., Greaves D. R. Programmed gene rearrangements altering gene expression. Science. 1987 Feb 6;235(4789):658–667. doi: 10.1126/science.3544215. [DOI] [PubMed] [Google Scholar]
- Brill S. J., Sternglanz R. Transcription-dependent DNA supercoiling in yeast DNA topoisomerase mutants. Cell. 1988 Jul 29;54(3):403–411. doi: 10.1016/0092-8674(88)90203-6. [DOI] [PubMed] [Google Scholar]
- Britten R. J., Kohne D. E. Repeated sequences in DNA. Hundreds of thousands of copies of DNA sequences have been incorporated into the genomes of higher organisms. Science. 1968 Aug 9;161(3841):529–540. doi: 10.1126/science.161.3841.529. [DOI] [PubMed] [Google Scholar]
- Carle G. F., Olson M. V. Separation of chromosomal DNA molecules from yeast by orthogonal-field-alternation gel electrophoresis. Nucleic Acids Res. 1984 Jul 25;12(14):5647–5664. doi: 10.1093/nar/12.14.5647. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Carlson M., Botstein D. Two differentially regulated mRNAs with different 5' ends encode secreted with intracellular forms of yeast invertase. Cell. 1982 Jan;28(1):145–154. doi: 10.1016/0092-8674(82)90384-1. [DOI] [PubMed] [Google Scholar]
- Christman M. F., Dietrich F. S., Fink G. R. Mitotic recombination in the rDNA of S. cerevisiae is suppressed by the combined action of DNA topoisomerases I and II. Cell. 1988 Nov 4;55(3):413–425. doi: 10.1016/0092-8674(88)90027-x. [DOI] [PubMed] [Google Scholar]
- Devereux J., Haeberli P., Smithies O. A comprehensive set of sequence analysis programs for the VAX. Nucleic Acids Res. 1984 Jan 11;12(1 Pt 1):387–395. doi: 10.1093/nar/12.1part1.387. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Dul J. L., Drexler H. Transcription stimulates recombination. I. Specialized transduction of Escherichia coli by lambda trp phages. Virology. 1988 Feb;162(2):466–470. doi: 10.1016/0042-6822(88)90488-6. [DOI] [PubMed] [Google Scholar]
- Egel R. Intergenic conversion and reiterated genes. Nature. 1981 Mar 19;290(5803):191–192. doi: 10.1038/290191a0. [DOI] [PubMed] [Google Scholar]
- Eng W. K., Pandit S. D., Sternglanz R. Mapping of the active site tyrosine of eukaryotic DNA topoisomerase I. J Biol Chem. 1989 Aug 15;264(23):13373–13376. [PubMed] [Google Scholar]
- Gottlieb S., Esposito R. E. A new role for a yeast transcriptional silencer gene, SIR2, in regulation of recombination in ribosomal DNA. Cell. 1989 Mar 10;56(5):771–776. doi: 10.1016/0092-8674(89)90681-8. [DOI] [PubMed] [Google Scholar]
- Hartwell L. H., Smith D. Altered fidelity of mitotic chromosome transmission in cell cycle mutants of S. cerevisiae. Genetics. 1985 Jul;110(3):381–395. doi: 10.1093/genetics/110.3.381. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Holm C., Stearns T., Botstein D. DNA topoisomerase II must act at mitosis to prevent nondisjunction and chromosome breakage. Mol Cell Biol. 1989 Jan;9(1):159–168. doi: 10.1128/mcb.9.1.159. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Ito H., Fukuda Y., Murata K., Kimura A. Transformation of intact yeast cells treated with alkali cations. J Bacteriol. 1983 Jan;153(1):163–168. doi: 10.1128/jb.153.1.163-168.1983. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Jackson J. A., Fink G. R. Gene conversion between duplicated genetic elements in yeast. Nature. 1981 Jul 23;292(5821):306–311. doi: 10.1038/292306a0. [DOI] [PubMed] [Google Scholar]
- Jelinek W. R., Schmid C. W. Repetitive sequences in eukaryotic DNA and their expression. Annu Rev Biochem. 1982;51:813–844. doi: 10.1146/annurev.bi.51.070182.004121. [DOI] [PubMed] [Google Scholar]
- Keil R. L., Roeder G. S. Cis-acting, recombination-stimulating activity in a fragment of the ribosomal DNA of S. cerevisiae. Cell. 1984 Dec;39(2 Pt 1):377–386. doi: 10.1016/0092-8674(84)90016-3. [DOI] [PubMed] [Google Scholar]
- Kim R. A., Wang J. C. A subthreshold level of DNA topoisomerases leads to the excision of yeast rDNA as extrachromosomal rings. Cell. 1989 Jun 16;57(6):975–985. doi: 10.1016/0092-8674(89)90336-x. [DOI] [PubMed] [Google Scholar]
- Klein H. L., Petes T. D. Genetic mapping of Ty elements in Saccharomyces cerevisiae. Mol Cell Biol. 1984 Feb;4(2):329–339. doi: 10.1128/mcb.4.2.329. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Klein H. L., Petes T. D. Intrachromosomal gene conversion in yeast. Nature. 1981 Jan 15;289(5794):144–148. doi: 10.1038/289144a0. [DOI] [PubMed] [Google Scholar]
- Kunz B. A., Haynes R. H. Phenomenology and genetic control of mitotic recombination in yeast. Annu Rev Genet. 1981;15:57–89. doi: 10.1146/annurev.ge.15.120181.000421. [DOI] [PubMed] [Google Scholar]
- Kupiec M., Petes T. D. Meiotic recombination between repeated transposable elements in Saccharomyces cerevisiae. Mol Cell Biol. 1988 Jul;8(7):2942–2954. doi: 10.1128/mcb.8.7.2942. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Liskay R. M., Stachelek J. L. Evidence for intrachromosomal gene conversion in cultured mouse cells. Cell. 1983 Nov;35(1):157–165. doi: 10.1016/0092-8674(83)90218-0. [DOI] [PubMed] [Google Scholar]
- Liu L. F., Wang J. C. Supercoiling of the DNA template during transcription. Proc Natl Acad Sci U S A. 1987 Oct;84(20):7024–7027. doi: 10.1073/pnas.84.20.7024. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Long E. O., Dawid I. B. Repeated genes in eukaryotes. Annu Rev Biochem. 1980;49:727–764. doi: 10.1146/annurev.bi.49.070180.003455. [DOI] [PubMed] [Google Scholar]
- Lynn R. M., Bjornsti M. A., Caron P. R., Wang J. C. Peptide sequencing and site-directed mutagenesis identify tyrosine-727 as the active site tyrosine of Saccharomyces cerevisiae DNA topoisomerase I. Proc Natl Acad Sci U S A. 1989 May;86(10):3559–3563. doi: 10.1073/pnas.86.10.3559. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Montelone B. A., Hoekstra M. F., Malone R. E. Spontaneous mitotic recombination in yeast: the hyper-recombinational rem1 mutations are alleles of the RAD3 gene. Genetics. 1988 Jun;119(2):289–301. doi: 10.1093/genetics/119.2.289. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Nasmyth K. A., Tatchell K. The structure of transposable yeast mating type loci. Cell. 1980 Mar;19(3):753–764. doi: 10.1016/s0092-8674(80)80051-1. [DOI] [PubMed] [Google Scholar]
- Orr-Weaver T. L., Szostak J. W. Yeast recombination: the association between double-strand gap repair and crossing-over. Proc Natl Acad Sci U S A. 1983 Jul;80(14):4417–4421. doi: 10.1073/pnas.80.14.4417. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Pearson W. R., Lipman D. J. Improved tools for biological sequence comparison. Proc Natl Acad Sci U S A. 1988 Apr;85(8):2444–2448. doi: 10.1073/pnas.85.8.2444. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Perkins D. D. Biochemical Mutants in the Smut Fungus Ustilago Maydis. Genetics. 1949 Sep;34(5):607–626. doi: 10.1093/genetics/34.5.607. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Petes T. D., Hill C. W. Recombination between repeated genes in microorganisms. Annu Rev Genet. 1988;22:147–168. doi: 10.1146/annurev.ge.22.120188.001051. [DOI] [PubMed] [Google Scholar]
- Petes T. D. Unequal meiotic recombination within tandem arrays of yeast ribosomal DNA genes. Cell. 1980 Mar;19(3):765–774. doi: 10.1016/s0092-8674(80)80052-3. [DOI] [PubMed] [Google Scholar]
- Prakash L., Prakash S. Isolation and characterization of MMS-sensitive mutants of Saccharomyces cerevisiae. Genetics. 1977 May;86(1):33–55. doi: 10.1093/genetics/86.1.33. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Rothstein R. J. One-step gene disruption in yeast. Methods Enzymol. 1983;101:202–211. doi: 10.1016/0076-6879(83)01015-0. [DOI] [PubMed] [Google Scholar]
- Sanger F., Nicklen S., Coulson A. R. DNA sequencing with chain-terminating inhibitors. Proc Natl Acad Sci U S A. 1977 Dec;74(12):5463–5467. doi: 10.1073/pnas.74.12.5463. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Scherer S., Davis R. W. Replacement of chromosome segments with altered DNA sequences constructed in vitro. Proc Natl Acad Sci U S A. 1979 Oct;76(10):4951–4955. doi: 10.1073/pnas.76.10.4951. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Slightom J. L., Blechl A. E., Smithies O. Human fetal G gamma- and A gamma-globin genes: complete nucleotide sequences suggest that DNA can be exchanged between these duplicated genes. Cell. 1980 Oct;21(3):627–638. doi: 10.1016/0092-8674(80)90426-2. [DOI] [PubMed] [Google Scholar]
- Struhl K., Davis R. W. A physical, genetic and transcriptional map of the cloned his3 gene region of Saccharomyces cerevisiae. J Mol Biol. 1980 Jan 25;136(3):309–332. doi: 10.1016/0022-2836(80)90376-9. [DOI] [PubMed] [Google Scholar]
- Tabor S., Richardson C. C. DNA sequence analysis with a modified bacteriophage T7 DNA polymerase. Proc Natl Acad Sci U S A. 1987 Jul;84(14):4767–4771. doi: 10.1073/pnas.84.14.4767. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Thomas B. J., Rothstein R. Elevated recombination rates in transcriptionally active DNA. Cell. 1989 Feb 24;56(4):619–630. doi: 10.1016/0092-8674(89)90584-9. [DOI] [PubMed] [Google Scholar]
- Thomas P. S. Hybridization of denatured RNA and small DNA fragments transferred to nitrocellulose. Proc Natl Acad Sci U S A. 1980 Sep;77(9):5201–5205. doi: 10.1073/pnas.77.9.5201. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Thrash C., Bankier A. T., Barrell B. G., Sternglanz R. Cloning, characterization, and sequence of the yeast DNA topoisomerase I gene. Proc Natl Acad Sci U S A. 1985 Jul;82(13):4374–4378. doi: 10.1073/pnas.82.13.4374. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Uemura T., Morino K., Uzawa S., Shiozaki K., Yanagida M. Cloning and sequencing of Schizosaccharomyces pombe DNA topoisomerase I gene, and effect of gene disruption. Nucleic Acids Res. 1987 Dec 10;15(23):9727–9739. doi: 10.1093/nar/15.23.9727. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Voelkel-Meiman K., Keil R. L., Roeder G. S. Recombination-stimulating sequences in yeast ribosomal DNA correspond to sequences regulating transcription by RNA polymerase I. Cell. 1987 Mar 27;48(6):1071–1079. doi: 10.1016/0092-8674(87)90714-8. [DOI] [PubMed] [Google Scholar]
- Wallis J. W., Chrebet G., Brodsky G., Rolfe M., Rothstein R. A hyper-recombination mutation in S. cerevisiae identifies a novel eukaryotic topoisomerase. Cell. 1989 Jul 28;58(2):409–419. doi: 10.1016/0092-8674(89)90855-6. [DOI] [PubMed] [Google Scholar]
- Wysocki L. J., Gefter M. L. Gene conversion and the generation of antibody diversity. Annu Rev Biochem. 1989;58:509–531. doi: 10.1146/annurev.bi.58.070189.002453. [DOI] [PubMed] [Google Scholar]
- Zieg J., Maples V. F., Kushner S. R. Recombinant levels of Escherichia coli K-12 mutants deficient in various replication, recombination, or repair genes. J Bacteriol. 1978 Jun;134(3):958–966. doi: 10.1128/jb.134.3.958-966.1978. [DOI] [PMC free article] [PubMed] [Google Scholar]