Protein arginine N-methyltransferase 5 - Q6NUA1 (ANM5_XENLA)

 

Protein Feature View of PDB entries mapped to a UniProtKB sequence  

  • Number of PDB entries for Q6NUA1: 1
 
Function
Arginine methyltransferase that can both catalyze the formation of omega-N monomethylarginine (MMA) and symmetrical dimethylarginine (sDMA), with a preference for the formation of MMA. Specifically mediates the symmetrical dimethylation of arginine residues in the small nuclear ribonucleoproteins; such methylation being required for the assembly and biogenesis of snRNP core particles. Methylates the arginine in the motif G-R-G-X-G in its substrates histone H2A, H2AFX and H4, producing both monomethylated and symmetrically dimethylated 'Arg-3'. Methylates nucleoplasmin at 'Arg-192', producing both monomethylated and symmetrically dimethylated 'Arg-192'. Involved in the DNA replication checkpoint. Promotes entry into mitosis by promoting the proteasomal degradation of wee2-a. May act as a transcriptional corepressor in CRY1-mediated repression of the core circadian component PER1. UniProt
Catalytic Activity
2 S-adenosyl-L-methionine + [protein]-L-arginine = 2 S-adenosyl-L-homocysteine + [protein]-Nomega,Nomega'-dimethyl-L-arginine. UniProt
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Subunit Structure
Heterotetramer; dimer of heterodimer with wdr77. Interacts with wee2-a; this interaction is disrupted upon activation of the DNA replication checkpoint. 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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