GA-binding protein subunit beta-2is aproteinthat in humans is encoded by theGABPB2 gene. The GABPB variant containing a C-terminal leucine zipper motif, which they called GABP-beta, can homodimerize and form a transcriptionally active heterotetrameric complex with GABPA. The variant lacking this motif, which they called GABP-gamma, can form heterodimers but cannot form transcriptionally active heterotetramers with GABPA.
