ANKRD16 encodes an ankyrin repeat domain protein with a well-characterized role in translational fidelity. It functions as a quality control factor that prevents serine misincorporation by binding to alanyl-tRNA synthetase (AARS) and promoting hydrolysis of serine-mischarged tRNA(Ala). This interaction captures misactivated serine, preventing its erroneous charging onto tRNA(Ala). Based on limited published evidence, ANKRD16 has been associated with susceptibility to immunoglobulin A nephropathy in genetic studies 1 and shows subtype-specific effects in breast cancer risk 2, though these associations require further experimental validation.