NAA38 (N-Alpha-Acetyltransferase 38, NatC Catalytic Subunit): NAA38 is a part of the N-terminal acetyltransferase complex that catalyzes the transfer of acetyl groups to the N-terminus of proteins. This modification affects protein stability, localization, and function. Although the exact biological roles and substrate specificity of NAA38 are not yet fully understood, N-terminal acetylation is a common and important post-translational modification. Research on NAA38 and similar enzymes helps uncover regulatory mechanisms of protein function and the effects of protein acetylation on cellular processes and diseases.