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Most cancer tissues displayed weak to moderate cytoplasmic staining. Thyroid cancers as well as several colorectal and endometrial cancers were strongly stained.
Weak to moderate cytoplasmic staining was observed in most malignancies. Several testicular cancers were strongly stained while a majority of liver and renal cancers were negative.
GENE INFORMATION
Gene name
UPF1 (HGNC Symbol)
Synonyms
HUPF1, KIAA0221, NORF1, pNORF1, RENT1, smg-2
Description
UPF1 regulator of nonsense transcripts homolog (yeast) (HGNC Symbol)
Entrez gene summary
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. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2014]