Double-stranded RNA-binding protein Staufen homolog 1 is a protein that in humans is encoded by the STAU1gene.[1][2][3]
Staufen is a member of the family of double-stranded RNA (dsRNA)-binding proteins involved in the transport and/or localization of mRNAs to different subcellular compartments and/or organelles. These proteins are characterized by the presence of multiple dsRNA-binding domains which are required to bind RNAs having double-stranded secondary structures. The human homologue of staufen encoded by STAU, in addition contains a microtubule-binding domain similar to that of microtubule-associated protein 1B, and binds tubulin. The STAU gene product has been shown to be present in the cytoplasm in association with the rough endoplasmic reticulum (RER), implicating this protein in the transport of mRNA via the microtubule network to the RER, the site of translation. Five transcript variants resulting from alternative splicing of STAU gene and encoding three isoforms have been described. Three of these variants encode the same isoform, however, differ in their 5'UTR.[3]
↑DesGroseillers L, Lemieux N (Feb 1997). "Localization of a human double-stranded RNA-binding protein gene (STAU) to band 20q13.1 by fluorescence in situ hybridization". Genomics. 36 (3): 527–9. doi:10.1006/geno.1996.0499. PMID8884277.
↑Kim YK, Furic L, Desgroseillers L, Maquat LE (Jan 2005). "Mammalian Staufen1 recruits Upf1 to specific mRNA 3'UTRs so as to elicit mRNA decay". Cell. 120 (2): 195–208. doi:10.1016/j.cell.2004.11.050. PMID15680326.
Kiebler MA, DesGroseillers L (2000). "Molecular insights into mRNA transport and local translation in the mammalian nervous system". Neuron. 25 (1): 19–28. doi:10.1016/S0896-6273(00)80868-5. PMID10707969.
Deloukas P, Matthews LH, Ashurst J, et al. (2002). "The DNA sequence and comparative analysis of human chromosome 20". Nature. 414 (6866): 865–71. doi:10.1038/414865a. PMID11780052.
Monshausen M, Rehbein M, Richter D, Kindler S (2002). "The RNA-binding protein Staufen from rat brain interacts with protein phosphatase-1". J. Neurochem. 81 (3): 557–64. doi:10.1046/j.1471-4159.2002.00887.x. PMID12065664.
Ohashi S, Koike K, Omori A, et al. (2002). "Identification of mRNA/protein (mRNP) complexes containing Puralpha, mStaufen, fragile X protein, and myosin Va and their association with rough endoplasmic reticulum equipped with a kinesin motor". J. Biol. Chem. 277 (40): 37804–10. doi:10.1074/jbc.M203608200. PMID12147688.
Angenstein F, Evans AM, Settlage RE, et al. (2002). "A receptor for activated C kinase is part of messenger ribonucleoprotein complexes associated with polyA-mRNAs in neurons". J. Neurosci. 22 (20): 8827–37. PMID12388589.
Macchi P, Kroening S, Palacios IM, et al. (2003). "Barentsz, a new component of the Staufen-containing ribonucleoprotein particles in mammalian cells, interacts with Staufen in an RNA-dependent manner". J. Neurosci. 23 (13): 5778–88. PMID12843282.
Ota T, Suzuki Y, Nishikawa T, et al. (2004). "Complete sequencing and characterization of 21,243 full-length human cDNAs". Nat. Genet. 36 (1): 40–5. doi:10.1038/ng1285. PMID14702039.