HYPK

Component of several N-terminal acetyltransferase complexes. Inhibits the N-terminal acetylation activity of the N-terminal acetyltransferase NAA10-NAA15 complex (also called the NatA complex). Has chaperone-like activity preventing polyglutamine (polyQ) aggregation of HTT in neuronal cells probably while associated with the NatA complex. May play a role in the NatA complex-mediated N-terminal acetylation of PCNP..

Function from UniProtKB (Q9NX55), read 2026-09-23. CC BY 4.0.