4nz6

Structural highlights

Disease

PUS1_HUMAN Mitochondrial myopathy and sideroblastic anemia. The disease is caused by variants affecting the gene represented in this entry.

Function

PUS1_HUMAN Pseudouridylate synthase that catalyzes pseudouridylation of tRNAs and mRNAs (PubMed:15772074, PubMed:24722331). Acts on positions 27/28 in the anticodon stem and also positions 34 and 36 in the anticodon of an intron containing tRNA (PubMed:24722331). Also catalyzes pseudouridylation of mRNAs: mediates pseudouridylation of mRNAs with the consensus sequence 5'-UGUAG-3' (PubMed:31477916, PubMed:35051350). Acts as a regulator of pre-mRNA splicing by mediating pseudouridylation of pre-mRNAs at locations associated with alternatively spliced regions (PubMed:35051350). Pseudouridylation of pre-mRNAs near splice sites directly regulates mRNA splicing and mRNA 3'-end processing (PubMed:35051350). Involved in regulation of nuclear receptor activity through pseudouridylation of SRA1 mRNA (PubMed:24722331).^{[1] [2] [3] [4]}

See Also

• Guide-independent Pseudouridine synthase
• Pseudouridine synthase 3D structures

References

1. ↑ Patton JR, Bykhovskaya Y, Mengesha E, Bertolotto C, Fischel-Ghodsian N. Mitochondrial myopathy and sideroblastic anemia (MLASA): missense mutation in the pseudouridine synthase 1 (PUS1) gene is associated with the loss of tRNA pseudouridylation. J Biol Chem. 2005 May 20;280(20):19823-8. doi: 10.1074/jbc.M500216200. Epub 2005 , Mar 16. PMID:15772074 doi:http://dx.doi.org/10.1074/jbc.M500216200
2. ↑ Huet T, Miannay FA, Patton JR, Thore S. Steroid receptor RNA activator (SRA) modification by the human pseudouridine synthase 1 (hPus1p): RNA binding, activity, and atomic model. PLoS One. 2014 Apr 10;9(4):e94610. doi: 10.1371/journal.pone.0094610. eCollection, 2014. PMID:24722331 doi:http://dx.doi.org/10.1371/journal.pone.0094610
3. ↑ Carlile TM, Martinez NM, Schaening C, Su A, Bell TA, Zinshteyn B, Gilbert WV. mRNA structure determines modification by pseudouridine synthase 1. Nat Chem Biol. 2019 Oct;15(10):966-974. doi: 10.1038/s41589-019-0353-z. Epub 2019, Sep 2. PMID:31477916 doi:http://dx.doi.org/10.1038/s41589-019-0353-z
4. ↑ Martinez NM, Su A, Burns MC, Nussbacher JK, Schaening C, Sathe S, Yeo GW, Gilbert WV. Pseudouridine synthases modify human pre-mRNA co-transcriptionally and affect pre-mRNA processing. Mol Cell. 2022 Feb 3;82(3):645-659.e9. doi: 10.1016/j.molcel.2021.12.023. Epub, 2022 Jan 19. PMID:35051350 doi:http://dx.doi.org/10.1016/j.molcel.2021.12.023