UniprotKB/SwissProt ID: PIAS3_HUMAN (Q9Y6X2)
Gene Name: PIAS3
Organism: Homo sapiens (Human).
Function: Functions as an E3-type small ubiquitin-like modifier (SUMO) ligase, stabilizing the interaction between UBE2I and the substrate, and as a SUMO-tethering factor. Plays a crucial role as a transcriptional coregulation in various cellular pathways, including the STAT pathway and the steroid hormone signaling pathway. Involved in regulating STAT3 signaling via inhibiting STAT3 DNA-binding and suppressing cell growth.
Other Modifications: View all modification sites in dbPTM
Protein Subcellular Localization: Cytoplasm. Nucleus. Note=Mainly cytoplasmic but shuttles between the nucleus and cytoplasm. Transported to the nucleus on interaction with phosphorylated STAT3. Colocalizes with GFI1 in nuclear dots (By similarity).
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