Cell growth-regulating nucleolar protein - Q9NX58 (LYAR_HUMAN)


Protein Feature View of PDB entries mapped to a UniProtKB sequence  

Plays a role in the maintenance of the appropriate processing of 47S/45S pre-rRNA to 32S/30S pre-rRNAs and their subsequent processing to produce 18S and 28S rRNAs (PubMed:24495227). Also acts at the level of transcription regulation. Along with PRMT5, binds the gamma-globin (HBG1/HBG2) promoter and represses its expression (PubMed:25092918). In neuroblastoma cells, may also repress the expression of oxidative stress genes, including CHAC1, HMOX1, SLC7A11, ULBP1 and SNORD41 that encodes a small nucleolar RNA (PubMed:28686580). Preferentially binds to a DNA motif containing 5'-GGTTAT-3' (PubMed:25092918). Negatively regulates the antiviral innate immune response by targeting IRF3 and impairing its DNA-binding activity (PubMed:31413131). In addition, inhibits NF-kappa-B-mediated expression of proinflammatory cytokines (PubMed:31413131). Stimulates phagocytosis of photoreceptor outer segments by retinal pigment epithelial cells (By similarity). Prevents nucleolin/NCL self-cleavage, maintaining a normal steady-state level of NCL protein in undifferentiated embryonic stem cells (ESCs), which in turn is essential for ESC self-renewal (By similarity). UniProt
Pathway Maps
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Subunit Structure
Interacts with PRMT5; this interaction is direct (PubMed:25092918). Interacts with GNL2 and RPL23A (PubMed:26203195). Interacts with nucleolin/NCL; this interaction is direct (By similarity). Interacts with phosphorylated IRF3; this interaction impairs IRF3 DNA-binding activity (PubMed:31413131). UniProt
The N-terminal zinc-finger domains are required for the appropriate production of 28S rRNA and the formation of pre-60S particles. UniProt
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The PDB to UniProt mapping is based on the data provided by the EBI SIFTS project. See also Velankar et al., Nucleic Acids Research 33, D262-265 (2005).
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