Hexon-associated protein IX (IPR005641)

Short name: Hexon_assoc_IX

Overlapping homologous superfamilies


Family relationships



Hexon is the major coat protein in type 2 adenoviruses. 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 [PMID: 8334984]. 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 [PMID: 15914835].

GO terms

Biological Process

No terms assigned in this category.

Molecular Function

GO:0031423 hexon binding

Cellular Component

GO:0019028 viral capsid

Contributing signatures

Signatures from InterPro member databases are used to construct an entry.