Forkhead box protein P2, FoxP2, multidomain transcriptional repressor, Fox family, forkhead-box DNA-binding domain, transcription factor, polyglutamine tract, zinc finger motif, leucine zipper motif, FoxP1, FoxP4, immune response, organ development, cancer, neural plasticity, speech disorder, language disorders, transcription, transcription regulation, zinc-binding, DNA-binding, nucleus development, organ development, embryonic development, cell growth, and chromatin binding