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This gene encodes a protein that is part of a post-splicing multiprotein complex involved in both mRNA nuclear export and mRNA surveillance. mRNA surveillance detects exported mRNAs with truncated open reading frames and initiates nonsense-mediated mRNA decay (NMD). When translation ends upstream from the last exon-exon junction, this triggers NMD to degrade mRNAs containing premature stop codons. This protein is located only in the cytoplasm. When translation ends, it interacts with the protein that is a functional homolog of yeast Upf2p to trigger mRNA decapping. Use of multiple polyadenylation sites has been noted for this gene.
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Protein Aliases: NF-AT4; NF-ATc3; NFAC3; NFATx; NFC3; nuclear factor of activated T-cells c3 isoform IE-Xa; Nuclear factor of activated T-cells, cytoplasmic 3; nuclear factor of activated T-cells, cytoplasmic, calcineurin-dependent 3; T cell transcription factor NFAT4; T-cell transcription factor NFAT4
Gene Aliases: NFAT4; NFATC3; NFATX
UniProt ID: (Human) O75211
Molecular Function: Rel homology transcription factor