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Target intelligence / Profile preview
Signal transducer and activator of transcription 5 (STAT5)
- Target
- STAT5
- Molecular classification
- Transcription factor
01
Overview
Signal transducer and activator of transcription 5 (STAT5) is a transcription factor mediating cellular responses to cytokines and growth factors. It includes two highly homologous proteins, STAT5A and STAT5B. Activated through the JAK/STAT pathway, it regulates genes involved in cell proliferation, apoptosis, differentiation, and inflammation. Aberrant regulation is associated with immunodeficiency, autoimmunity, and cancer, making it a therapeutic target.
- Other names
- STAT5ASTAT5B
02
Mechanism of action
Inhibition of upstream kinases in the JAK/STAT pathway; Direct inhibition of STAT5 function.
03
Biological functions
Cell proliferationApoptosisDifferentiationInflammationHematopoiesisAdipogenesisImmune regulationGene expression regulation
04
Disease associations
ImmunodeficiencyCancerAutoimmunity
05
Safety considerations
Potential for off-target effects due to high sequence homology between STAT5A and STAT5B.Paralog-specific effects need to be considered for safety profiles.Loss-of-function can lead to immunodeficiency and autoimmunity.
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