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Updated: Jul 28, 2026
11:19
Spatiotemporal Analysis of Cytokinetic Events in Fission Yeast
Published on: February 20, 2017
Platelet septin complexes form rings and associate with the microtubular network
C Martínez1, J Corral, J A Dent
1Department of Physiology and Biophysics, University of Arkansas for Medical Sciences, Little Rock, AR 72223, USA.
Journal of Thrombosis and Haemostasis : JTH
|May 19, 2006
Summary
Septin complexes, including SEPT5, are crucial for platelet function. Their absence increases ATP release in stimulated platelets, highlighting septins
Area of Science:
- Cell biology
- Molecular mechanisms
- Membrane dynamics
Background:
- Septins are proteins involved in membrane partitioning.
- Mammals have 13 known septin proteins (SEPT1-SEPT13).
- Septins are classified into four distinct categories.
Purpose of the Study:
- Document human platelet SEPT5 as part of a multi-septin complex.
- Investigate the role of SEPT5 in platelet physiology.
Main Methods:
- Biochemical assays
- Immunofluorescence microscopy
- Analysis of SEPT5 knockout mouse model
Main Results:
- Platelet septin complexes localize to the platelet periphery, associated with the circumferential band, microtubule coil, and tubulin.
- Septin ring structures remain intact in both resting and activated platelets.
- Absence of SEPT5 leads to increased ATP release from stimulated platelets.
Conclusions:
- Platelet septin complexes are present and play a significant role in platelet physiology.
- Septins are vital for proper platelet function and response.
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