VP30 is a nucleocapsid-associated Ebola virus-specific transcription factor. It acts by stabilizing nascent mRNA in Ebola virus replication. The C terminal domain of VP30 folds into a dimeric helical assembly. VP30 assembles into hexamers in solution by an N-terminal oligomerization domain which activates the transcription function of the protein. The oligomerization is mediated by hydrophobic amino acids at 94-112.