Transcription factor SOX-10 is a protein that in humans is encoded by the SOX10 gene. This gene encodes a member of the SOX （SRY-related HMG-box） family of transcription factors involved in the regulation of embryonic development and determination of cell fate. The encoded protein acts as a transcriptional activator after forming a protein complex with other proteins. This protein acts as a nucleocytoplasmic shuttle protein and is important for neural crest and peripheral nervous system development.