The critical region of overlap defining the AZFa male infertility interval of proximal Yq contains three transcribed sequences / Carole A. Sargent, Catherine A. Boucher, Stefan Kirsch, Graeme Brown, Birgit Weiss,Anita Trundley, Paul Burgoyne, Neomie Saut, Christine Durand, Nicolas Levy, Philippe Terriou, Timothy Hargreave, Howard Cooke, Michael Mitchell, Gudrun A. Rappold, Nabeel A. Affara
The position of deletion breakpoints in a series of four AZFa male infertility patients has been refined using new markers derived from BAC clone DNA sequence covering the AZFa male infertility interval. The proximal half of the AZFa interval is occupied by pseudogene sequences with homology to Xp22. The distal half contains an anonymous expressed sequence tag (named AZFaT1) found transcribed in brain, testis, and skeletal muscle and the DFFRY and DBY genes. All the patients have AZFaT1 and DFFRY deleted in their entirety and three patients additionally have DBY deleted. The three patients with AZFaT1, DFFRY, and DBY deleted show a severe Sertoli cell only syndrome type I phenotype, whereas the patient that has retained DBY shows a milder oligozoospermic phenotype. The expression of DBY in a cell line from this latter patient is unaltered; this shows that it is the loss of genes lying within the deletion that is responsible for the observed oligozoospermia. RT-PCR analysis of mouse testis RNA from normal and XXSxr(a) mice (devoid of germ cells) has shown that Dby is expressed primarily in somatic cells and that the level of expression is unaltered during germ cell differentiation. This contrasts with Dffry where no transcripts are detectable in XXSxr(a) mouse testis and expression occurs specifically in testis mRNA in a germ cell dependent fashion..
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
September 01, 1999 1999 |
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| Erschienen: |
September 01, 1999 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:36 |
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| Enthalten in: |
Journal of medical genetics - 36(1999), 9, Seite 670-677 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Sargent, Carole A. [VerfasserIn] |
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| Links: |
Volltext [lizenzpflichtig] |
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| Anmerkungen: |
Gesehen am 07.04.2021 |
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| Umfang: |
8 |
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| doi: |
10.1136/jmg.36.9.670 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| 245 | 1 | 4 | |a The critical region of overlap defining the AZFa male infertility interval of proximal Yq contains three transcribed sequences |c Carole A. Sargent, Catherine A. Boucher, Stefan Kirsch, Graeme Brown, Birgit Weiss,Anita Trundley, Paul Burgoyne, Neomie Saut, Christine Durand, Nicolas Levy, Philippe Terriou, Timothy Hargreave, Howard Cooke, Michael Mitchell, Gudrun A. Rappold, Nabeel A. Affara |
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| 520 | |a The position of deletion breakpoints in a series of four AZFa male infertility patients has been refined using new markers derived from BAC clone DNA sequence covering the AZFa male infertility interval. The proximal half of the AZFa interval is occupied by pseudogene sequences with homology to Xp22. The distal half contains an anonymous expressed sequence tag (named AZFaT1) found transcribed in brain, testis, and skeletal muscle and the DFFRY and DBY genes. All the patients have AZFaT1 and DFFRY deleted in their entirety and three patients additionally have DBY deleted. The three patients with AZFaT1, DFFRY, and DBY deleted show a severe Sertoli cell only syndrome type I phenotype, whereas the patient that has retained DBY shows a milder oligozoospermic phenotype. The expression of DBY in a cell line from this latter patient is unaltered; this shows that it is the loss of genes lying within the deletion that is responsible for the observed oligozoospermia. RT-PCR analysis of mouse testis RNA from normal and XXSxr(a) mice (devoid of germ cells) has shown that Dby is expressed primarily in somatic cells and that the level of expression is unaltered during germ cell differentiation. This contrasts with Dffry where no transcripts are detectable in XXSxr(a) mouse testis and expression occurs specifically in testis mRNA in a germ cell dependent fashion. | ||
| 650 | 4 | |a Adult | |
| 650 | 4 | |a Amino Acid Sequence | |
| 650 | 4 | |a Animals | |
| 650 | 4 | |a Chromosome Deletion | |
| 650 | 4 | |a Expressed Sequence Tags | |
| 650 | 4 | |a Humans | |
| 650 | 4 | |a Male | |
| 650 | 4 | |a Mice | |
| 650 | 4 | |a Molecular Sequence Data | |
| 650 | 4 | |a Oligospermia | |
| 650 | 4 | |a Physical Chromosome Mapping | |
| 650 | 4 | |a Reverse Transcriptase Polymerase Chain Reaction | |
| 650 | 4 | |a Sequence Deletion | |
| 650 | 4 | |a Y Chromosome | |
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