POU domain, class 4, transcription factor 2 (POU4F2)

Functions either as activator or repressor regulating the rate of target gene transcription through RNA polymerase II receptor at a promoter-dependent manner (PubMed:19266028, PubMed:23805044). Binds to the consensus octamer motif 5'-AT[A/T]A[T/A]T[A/T]A-3' of promoter of target genes.

Plays a fundamental role in the gene regulatory system necessary for retinal ganglion cell (RGC) differentiation. Binds to an octamer site to form a ternary complex with ISL1; cooperates favorably with ISL1 and ISL2 to potentiate transcriptional activation of RGC target genes being included in RGC fate commitment in the developing retina and RGC axon formation and pathfinding.