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Targeted Gene Disruption in Cryptococcus neoformans Using Double-Joint PCR with Split Dominant Selectable Markers

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Host-Fungus Interactions

Part of the book series: Methods in Molecular Biology ((MIMB,volume 845))

Abstract

Cryptococcus neoformans causes fatal meningoencephalitis if not timely treated. Targeted gene disruption for functional analysis of a gene involves overlap PCR for the production of gene disruption cassettes carrying dominant selectable markers, followed by biolistic transformation. However, the conventional overlap PCR method between two flanking regions of the target gene and selectable marker is often inefficient due to the long length of the PCR product and the presence of multiple templates. Here we describe double-joint PCR with split dominant selectable markers for the more convenient generation of a gene-disruption cassette in C. neoformans with high targeted integration frequency (Kim et al., Biochem. Biophys. Res. Commun 390(3):983–988, 2009).

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References

  1. Robert C. Davidson1, Jill R. Blankenship1, et al. (2002) A PCR-based strategy to generate integrative targeting alleles with large regions of homology. Microbiology 148 (Pt 8):2607–15.

    Google Scholar 

  2. D L Toffaletti, T H Rude, S A Johnston, et al. (1993) Gene transfer in Cryptococcus neoformans by use of biolistic delivery of DNA. J. Bacteriol 175(5):1405–1411.

    Article  CAS  Google Scholar 

  3. Robert C. Davidson, M. Cristina Cruz, Rey A. L. Sia, et al. (2000) Gene disruption by biolistic transformation in serotype D strains of Cryptococcus neoformans. Fungal Genet. Biol 29(1):38–48.

    Google Scholar 

  4. McDade HC, Cox GM. (2010) A new dominant selectable marker for use in Cryptococcus neoformans. Med. Mycol 39(1):151–154.

    Article  Google Scholar 

  5. Nelson RT, Pryor BA, Lodge JK. (2003) Sequence length required for homologous recombination in Cryptococcus neoformans. Fungal Genet. Biol 38(1):1–9.

    Article  CAS  Google Scholar 

  6. Kim MS, Kim SY, Yoon JK, et al. (2009) An efficient gene disruption method in Cryptococcus neoformans by double-joint PCR with NAT-split markers. Biochem. Biophys. Res. Commun 390(3):983–988.

    Article  CAS  Google Scholar 

  7. Perfect JR, Ketabchi N, Cox GM, Ingram CW, et al. (1993) Karyotyping of Cryptococcus ­neoformans as an epidemiological tool. J. Clin. Microbiol 31(12):3305–9.

    Article  CAS  Google Scholar 

  8. Nielsen K, Cox GM, Wang P, et al. (2003) Sexual cycle of Cryptococcus neoformans var. grubii and virulence of 650 congenic a and ­isolates. Infect Immun 71(9):4831–41.

    Article  CAS  Google Scholar 

  9. Moore, T. D., Edman, J. C. (1993) The alpha-mating type locus of Cryptococcus neoformans contains a peptide pheromone gene. Mol. Cell. Biol 13(3):1962–70.

    Article  CAS  Google Scholar 

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Acknowledgment

This work was supported by the Korea Science and Engineering Foundation (KOSEF) grant funded by the Korean government (MEST) (R01-2008-000-11426-0) and in part by the Korea Science and Engineering Foundation (KOSEF) grant funded by the Korean government (MEST) (R11-2008-062-02001-0).

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Correspondence to Yong-Sun Bahn .

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Kim, M.S., Kim, SY., Jung, KW., Bahn, YS. (2012). Targeted Gene Disruption in Cryptococcus neoformans Using Double-Joint PCR with Split Dominant Selectable Markers. In: Brand, A., MacCallum, D. (eds) Host-Fungus Interactions. Methods in Molecular Biology, vol 845. Humana, Totowa, NJ. https://doi.org/10.1007/978-1-61779-539-8_5

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  • DOI: https://doi.org/10.1007/978-1-61779-539-8_5

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  • Publisher Name: Humana, Totowa, NJ

  • Print ISBN: 978-1-61779-538-1

  • Online ISBN: 978-1-61779-539-8

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