Pseudouridylate synthase 1 homolog

Definition

Pseudouridylate synthase that catalyzes pseudouridylation of tRNAs and mRNAs. Acts on positions 27/28 in the anticodon stem and also positions 34 and 36 in the anticodon of an intron containing tRNA. Also catalyzes pseudouridylation of mRNAs: mediates pseudouridylation of mRNAs with the consensus sequence 5'-UGUAG-3'. Acts as a regulator of pre-mRNA splicing by mediating pseudouridylation of pre-mRNAs at locations associated with alternatively spliced regions. Pseudouridylation of pre-mRNAs near splice sites directly regulates mRNA splicing and mRNA 3'-end processing. Involved in regulation of nuclear receptor activity through pseudouridylation of SRA1 mRNA.

References:

[1]. Thomas M Carlile, et al. mRNA structure determines modification by pseudouridine synthase 1. Nat Chem Biol. 2019 Oct;15(10):966-974. [Content Brief]

[2]. Nicole M Martinez, et al. Pseudouridine synthases modify human pre-mRNA co-transcriptionally and affect pre-mRNA processing. Mol Cell. 2022 Feb 3;82(3):645-659.e9. [Content Brief]

[3]. Tiphaine Huet, et al. 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. [Content Brief]

[4]. Jeffrey R Patton, et al. 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. [Content Brief]

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