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Septin-8 (SEPTIN8)
- Target
- SEPTIN8
- Molecular classification
- Small GTPase, Cytoskeletal protein, Filament-forming protein, member of the septin protein family
01
Overview
Septin-8 is a small GTP-binding cytoskeletal protein that assembles into filaments and higher-order structures in concert with other septins. It plays a critical role in maintaining cellular architecture, contributing to membrane compartmentalization, cytoskeletal integration, and the formation of diffusion barriers. SEPTIN8 is expressed in various human tissues, notably localizing to areas of cellular stress and observed in kidney tubule cells, where it colocalizes with both microtubules and actin filaments. Environmental stress, such as hypoxia, induces relocalization of SEPTIN8, highlighting its functional significance in cellular response mechanisms. Although the septin family is implicated in cancer and neurodegenerative diseases, SEPTIN8’s direct therapeutic relevance remains unestablished.
- Other names
- SEPTIN8KIAA0202SEPT8SEP2septin-8Sept8
02
Biological functions
Cytoskeletal rearrangementMembrane remodeling and compartmentalizationFormation of diffusion barriersScaffolding for protein interactionsCell division (cytokinesis)Cell polarityVesicle transport
03
Disease associations
Kidney disease (tubulointerstitial injury, chronic kidney disease risk)Cancer (septins as a family have been implicated in cancer, though direct SEPTIN8 involvement is less well established)Neurodegenerative disease (septins in general are implicated, but direct role for SEPTIN8 is less clear)environmental stress response
04
Safety considerations
None specific to Septin-8; general challenges with targeting cytoskeletal proteins include potential disruption of essential cell division and structural functions, but no known established safety issues specific to SEPTIN8
05
Biomarkers
SEPTIN8 expression has been suggested as a biomarker for tubulointerstitial damage and cellular stress in kidney tissue
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