InterPro: IPR005641 Adenovirus hexon-associated protein (IX)

Hexon (IPR000736) is the major coat protein from adenovirus type 2. Hexon forms a homo-trimer, 240 copies of which are present in the capsid, organised so that 12 lie on each of the 20 facets of this structure. The central 9 hexons in a facet are cemented together by 12 copies of protein IX [1]. Protein IX is not neccessarily required for viral replication, but has been shown to affect several processes including DNA-packaging capacity, thermostability, and the transcriptional activity of several promoters. For more information see [2].