Oct3/4

Oct3/4 (also known as POU5F1 and Oct4) is regarded as one of the key regulators of pluripotency. Oct-4 is a homeodomain transcription factor of the POU family. This protein is critically involved in the self-renewal of undifferentiated embryonic stem cells. it is frequently used as a marker for undifferentiated cells. Oct-4 expression must be closely regulated; too much or too little will cause differentiation of the cells.