Aliases for PIAS3 Gene
External Ids for PIAS3 Gene
Previous GeneCards Identifiers for PIAS3 Gene
This gene encodes a member of the PIAS [protein inhibitor of activated STAT (signal transducer and activator of transcription)] family of transcriptional modulators. The protein functions as a SUMO (small ubiquitin-like modifier)-E3 ligase which catalyzes the covalent attachment of a SUMO protein to specific target substrates. It directly binds to several transcription factors and either blocks or enhances their activity. Alternatively spliced transcript variants of this gene have been identified, but the full-length nature of some of these variants has not been determined. [provided by RefSeq, Jul 2008]
GeneCards Summary for PIAS3 Gene
PIAS3 (Protein Inhibitor Of Activated STAT 3) is a Protein Coding gene. Among its related pathways are Regulation of nuclear SMAD2/3 signaling and EGFR1 Signaling Pathway. GO annotations related to this gene include nucleic acid binding and ligase activity. An important paralog of this gene is PIAS1.
UniProtKB/Swiss-Prot for PIAS3 Gene
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. Enhances the sumoylation of MTA1 and may participate in its paralog-selective sumoylation (PubMed:21965678, PubMed:9388184). Sumoylates CCAR2 which promotes its interaction with SIRT1 (PubMed:25406032). Diminishes the sumoylation of ZFHX3 by preventing the colocalization of ZFHX3 with SUMO1 in the nucleus (PubMed:24651376).