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Septins at the annulus of mammalian sperm
-
Aminata Toure
,
Baptiste Rode
Published/Copyright:
August 1, 2011
Abstract
The annulus is an electron-dense ring structure connecting the midpiece and the principal piece of the mammalian sperm flagellum. Proteins from the septin family have been shown to localize to the annulus. A septin complex is assembled early in spermiogenesis with the cochaperone DNAJB13 and, in mature sperm, associates with Testis Anion Transporter 1; SLC26A8 (Tat1), a transmembrane protein of the SLC26 family. Studies in mice have shown that the annulus acts as a barrier to protein diffusion and controls correct organization of the midpiece. Consistent with these findings, absence of the annulus is associated with flagellum differentiation defects and asthenozoospermia in humans.
Received: 2011-4-21
Accepted: 2011-6-1
Published Online: 2011-08-01
Published in Print: 2011-08-01
©2011 by Walter de Gruyter Berlin Boston
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Articles in the same Issue
- Editorial
- Highlight on septins
- HIGHLIGHT: EMBO WORKSHOP ‘SEPTINS’
- New insights into the phylogenetic distribution and evolutionary origins of the septins
- Dynamics of septin ring and collar formation in Saccharomyces cerevisiae
- Genetic interactions with mutations affecting septin assembly reveal ESCRT functions in budding yeast cytokinesis
- MLL-SEPTIN gene fusions in hematological malignancies
- Septin roles in tumorigenesis
- Characterization of presynaptic septin complexes in mammalian hippocampal neurons
- Characterization of human septin interactions
- Septin genomics: a road less travelled
- Septin9 is involved in septin filament formation and cellular stability
- Lethal phenotype of mice carrying a Sept11 null mutation
- ARTS, the unusual septin: structural and functional aspects
- Structural and biochemical properties of Sept7, a unique septin required for filament formation
- Septins at the annulus of mammalian sperm
- The mother-bud neck as a signaling platform for the coordination between spindle position and cytokinesis in budding yeast
- Evidence that a septin diffusion barrier is dispensable for cytokinesis in budding yeast
- Septins as key regulators of actin based processes in bacterial infection
Articles in the same Issue
- Editorial
- Highlight on septins
- HIGHLIGHT: EMBO WORKSHOP ‘SEPTINS’
- New insights into the phylogenetic distribution and evolutionary origins of the septins
- Dynamics of septin ring and collar formation in Saccharomyces cerevisiae
- Genetic interactions with mutations affecting septin assembly reveal ESCRT functions in budding yeast cytokinesis
- MLL-SEPTIN gene fusions in hematological malignancies
- Septin roles in tumorigenesis
- Characterization of presynaptic septin complexes in mammalian hippocampal neurons
- Characterization of human septin interactions
- Septin genomics: a road less travelled
- Septin9 is involved in septin filament formation and cellular stability
- Lethal phenotype of mice carrying a Sept11 null mutation
- ARTS, the unusual septin: structural and functional aspects
- Structural and biochemical properties of Sept7, a unique septin required for filament formation
- Septins at the annulus of mammalian sperm
- The mother-bud neck as a signaling platform for the coordination between spindle position and cytokinesis in budding yeast
- Evidence that a septin diffusion barrier is dispensable for cytokinesis in budding yeast
- Septins as key regulators of actin based processes in bacterial infection
