ID:XRN1_HUMAN DESCRIPTION: RecName: Full=5'-3' exoribonuclease 1; EC=3.1.11.-; AltName: Full=Strand-exchange protein 1 homolog; FUNCTION: Major 5'-3' exoribonuclease involved in mRNA decay. Required for the 5'-3'-processing of the G4 tetraplex-containing DNA and RNA substrates. The kinetic of hydrolysis is faster for G4 RNA tetraplex than for G4 DNA tetraplex and monomeric RNA tetraplex. Binds to RNA and DNA (By similarity). Plays a role in replication-dependent histone mRNA degradation. May act as a tumor suppressor protein in osteogenic sarcoma (OGS). SUBUNIT: Associates with alpha and beta tubulins (By similarity). Found in a mRNP complex with UPF1, UPF2, UPF3B and XRN1. Interacts with ZC3HAV1 in an RNA-dependent manner. SUBCELLULAR LOCATION: Cytoplasm. Note=Discrete foci at the inner surface of the cell membrane. TISSUE SPECIFICITY: Expressed in heart, brain, pancreas, spleen, testis, osteogenic sarcoma (OGS) biopsy and primary cell lines. INDUCTION: By GDNF/glial cell line-derived neurotrophic factor. MISCELLANEOUS: Down-regulated in OGS biopsy. SIMILARITY: Belongs to the 5'-3' exonuclease family.
The RNAfold program from the Vienna RNA Package is used to perform the secondary structure predictions and folding calculations. The estimated folding energy is in kcal/mol. The more negative the energy, the more secondary structure the RNA is likely to have.
ModBase Predicted Comparative 3D Structure on Q8IZH2
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Orthologous Genes in Other Species
Orthologies between human, mouse, and rat are computed by taking the best BLASTP hit, and filtering out non-syntenic hits. For more distant species reciprocal-best BLASTP hits are used. Note that the absence of an ortholog in the table below may reflect incomplete annotations in the other species rather than a true absence of the orthologous gene.