The yeast CDP1 gene encodes a triple-helical DNA-binding protein

Marco Musso, Giovanna Bianchi-Scarrà, Michael W. Van Dyke

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

The formation of triple-helical DNA has been implicated in several cellular processes, including transcription, replication and recombination. While there is no direct evidence for triplexes in vivo, cellular proteins that specifically recognize triplex DNA have been described. Using a purine-motif triplex probe and southwestern library screening, we isolated five independent clones expressing the same C-terminal 210 amino acids of the Saccharomyces cerevisiae protein Cdp1p fused with β-galactosidase. In electrophoretic mobility shift assays, recombinant Cdp1pΔ1-867 bound Pu-motif triplex DNAs with high affinity (K(d) ~5 nM) and bound Py-motif triplex, duplex and single-stranded DNAs with far lower affinity (0.5-5.0 μM). Genetic analyses revealed that the CDP1 gene product was required for proper chromosome segregation. The possible involvement of triplex DNA in this process is discussed.

Original languageEnglish
Pages (from-to)4090-4096
Number of pages7
JournalNucleic Acids Research
Volume28
Issue number21
Publication statusPublished - Nov 1 2000

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DNA-Binding Proteins
Yeasts
Galactosidases
Genes
Saccharomyces cerevisiae Proteins
Chromosome Segregation
Single-Stranded DNA
Electrophoretic Mobility Shift Assay
Genetic Recombination
Clone Cells
Amino Acids
DNA
triplex DNA
Proteins

ASJC Scopus subject areas

  • Genetics

Cite this

Musso, M., Bianchi-Scarrà, G., & Van Dyke, M. W. (2000). The yeast CDP1 gene encodes a triple-helical DNA-binding protein. Nucleic Acids Research, 28(21), 4090-4096.

The yeast CDP1 gene encodes a triple-helical DNA-binding protein. / Musso, Marco; Bianchi-Scarrà, Giovanna; Van Dyke, Michael W.

In: Nucleic Acids Research, Vol. 28, No. 21, 01.11.2000, p. 4090-4096.

Research output: Contribution to journalArticle

Musso, M, Bianchi-Scarrà, G & Van Dyke, MW 2000, 'The yeast CDP1 gene encodes a triple-helical DNA-binding protein', Nucleic Acids Research, vol. 28, no. 21, pp. 4090-4096.
Musso M, Bianchi-Scarrà G, Van Dyke MW. The yeast CDP1 gene encodes a triple-helical DNA-binding protein. Nucleic Acids Research. 2000 Nov 1;28(21):4090-4096.
Musso, Marco ; Bianchi-Scarrà, Giovanna ; Van Dyke, Michael W. / The yeast CDP1 gene encodes a triple-helical DNA-binding protein. In: Nucleic Acids Research. 2000 ; Vol. 28, No. 21. pp. 4090-4096.
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