Protein Name:
Pseudouridylate synthase RPUSD4, mitochondrial
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UniprotKB/SwissProt ID: Q96CM3 (Q96CM3)
Gene Name:
RPUSD4
Organism: Homo sapiens (Human)
Function: Catalyzes uridine to pseudouridine isomerization (pseudouridylation) of different mitochondrial RNA substrates (PubMed:27974379, PubMed:28082677). Acts on position 1397 in 16S mitochondrial ribosomal RNA (16S mt-rRNA) (PubMed:27974379). This modification is required for the assembly of 16S mt-rRNA into a functional mitochondrial ribosome (PubMed:27974379). As a component of a functional protein-RNA module, consisting of RCC1L, NGRN, RPUSD3, RPUSD4, TRUB2, FASTKD2 and 16S mt-rRNA, controls 16S mt-rRNA abundance and is required for intra-mitochondrial translation (PubMed:27667664). Acts on position 39 in mitochondrial tRNA(Phe) (PubMed:28082677). Also catalyzes pseudouridylation of mRNAs in nucleus: 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)
Other Modifications: View all modification sites in dbPTM
Protein Subcellular Localization: Mitochondrion matrix. Nucleus. Cytoplasm
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Graphical Visualization of S-nitrosylation Sites:
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The S-nitrosylation sites of Q96CM3
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| No. |
Position |
S-nitrosylated Peptide |
Secondary Structure of S-nitrosylated Peptide |
Solvent Accessibility of nitrosylated Site |
PubMed ID |
| 1 |
343 |
GSGKEELNLV C KLPRFFVHSL |
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