The human DAZ genes, a putative male infertility factor on the Y Chromosome, are highly polymorphic in the DAZ repeat regions

The human DAZ genes, a putative male infertility factor on the Y Chromosome, are highly... The DAZ genes on the human Y Chromosome (Chr) are strong candidates for the azoospermia factor AZF. They are frequently deleted in azoospermic or severely oligospermic males and are expressed exclusively in germ cells. In addition, the DAZ genes share a high degree of similarity with a Drosophila male infertility gene, boule. The predicted DAZ proteins contain an RNA recognition motif (RRM), and multiple copies of a repeat (the DAZ repeat) in tandem array. To understand the DAZ gene family and its expression, the DAZ genomic structure and RNA transcripts in numerous males, as well as several DAZ cDNA clones were analyzed. The results of genomic Southern blot showed that each male contains multiple DAZ genes with varying numbers of DAZ repeats, and that the copy number of the DAZ repeats are polymorphic in the population. The presence of multiple species of DAZ transcripts with different copy number and arrangement of the DAZ repeats in an individual suggests that more than one DAZ gene are transcribed. The existence of multiple functional DAZ genes complicates the analysis of genotype/phenotype correlations among males with varying sperm counts. Mammalian Genome Springer Journals

The human DAZ genes, a putative male infertility factor on the Y Chromosome, are highly polymorphic in the DAZ repeat regions

Loading next page...
Copyright © 1997 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