Single base discrimination of CENP-B repeats on mouse and human Chromosomes with PNA-FISH

Single base discrimination of CENP-B repeats on mouse and human Chromosomes with PNA-FISH The satellite repeat structure of the mammalian centromere contains the CENP-B protein binding site. Using the peptide nucleic acid-fluorescence in situ hybridization (PNA-FISH), we show by direct PNA-DNA binding that all detectable CENP-B sites in a mammalian genome might have the same sequence. Two species-specific PNA 17-mers, pMm and pMc, were identified from CENP-B binding sites of Mus musculus and M. caroli, respectively. Fluorescence in situ hybridization confirmed that pMc hybridized to M. caroli centromeres only; however, pMm cross-hybridized to M. musculus and human centromeres. By using a series of CENP-B PNA 17-mers containing 1, 2, 3, 5, and 7 base-pair mismatches to their DNA counterparts, we further demonstrate that PNA-FISH can discriminate between two CENP-B DNA sequences that differ by a single base-pair in mouse and human centromeres, suggesting the degree of conservation of CENP-B sequences throughout the genome. In comparison with DNA oligonucleotides, PNA oligomers demonstrate the higher sequence specificity, improved stability, reproducibility, and lower background. Therefore, PNA oligomers have significant advantages over DNA oligonucleotide probes in analyzing microsatellites in a genome. Mammalian Genome Springer Journals

Single base discrimination of CENP-B repeats on mouse and human Chromosomes with PNA-FISH

Loading next page...
Copyright © 1999 by Springer-Verlag New York Inc.
Life Sciences; Cell Biology; Animal Genetics and Genomics; Human Genetics
Publisher site
See Article on Publisher Site

There are no references for this article.

You’re reading a free preview. Subscribe to read the entire article.

DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 12 million articles from more than
10,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Unlimited reading

Read as many articles as you need. Full articles with original layout, charts and figures. Read online, from anywhere.

Stay up to date

Keep up with your field with Personalized Recommendations and Follow Journals to get automatic updates.

Organize your research

It’s easy to organize your research with our built-in tools.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

Monthly Plan

  • Read unlimited articles
  • Personalized recommendations
  • No expiration
  • Print 20 pages per month
  • 20% off on PDF purchases
  • Organize your research
  • Get updates on your journals and topic searches


Start Free Trial

14-day Free Trial

Best Deal — 39% off

Annual Plan

  • All the features of the Professional Plan, but for 39% off!
  • Billed annually
  • No expiration
  • For the normal price of 10 articles elsewhere, you get one full year of unlimited access to articles.



billed annually
Start Free Trial

14-day Free Trial