Human Arginyl-tRNA--protein transferase 1,ATE1 ELI

Involved in the post-translational conjugation of arginine to the N-terminal aspartate or glutamate of a protein.

This arginylation is required for degradation of the protein via the ubiquitin pathway.

Does not arginylate cysteine residues (By similarity).

{ECO:0000250}.