Recombinant Human Regulator of nonsense transcripts 2 (UPF2), Truncated

Uniprot Id

Q9HAU5

Target Species

Human

Target Name

UPF2

Target Full Name

Regulator of nonsense transcripts 2

Target Function

Involved in nonsense-mediated decay (NMD) of mRNAs containing premature stop codons by associating with the nuclear exon junction complex (EJC). Recruited by UPF3B associated with the EJC core at the cytoplasmic side of the nuclear envelope and the subsequent formation of an UPF1-UPF2-UPF3 surveillance complex (including UPF1 bound to release factors at the stalled ribosome) is believed to activate NMD. In cooperation with UPF3B stimulates both ATPase and RNA helicase activities of UPF1. Binds spliced mRNA.

Target Subcellular Location

Cytoplasm, perinuclear region.

Target Tissue Specificity

Ubiquitous.

Target Synonyms

DKFZp434D222; hUpf2; KIAA1408; MGC138834; MGC138835; Nonsense mRNA reducing factor 2; Regulator of nonsense transcripts 2; RENT2; RENT2_HUMAN; Smg 3; Smg 3 homolog nonsense mediated mRNA decay factor; Up-frameshift suppressor 2 homolog; UPF2; UPF2 regulator of nonsense transcripts homolog; UROC1; Urocanate hydratase; Yeast Upf2p homolog

Target Background

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 in the perinuclear area. It interacts with translation release factors and the proteins that are functional homologs of yeast Upf1p and Upf3p. Two splice variants have been found for this gene; both variants encode the same protein.