Adenovirus penton base protein (IPR002605)

Short name: Adeno_Penton_B

Overlapping homologous superfamilies


Family relationships



This family consists of various adenovirus penton base proteins (also known as Protein III) [PMID: 20798312], from both the mastadenoviridae having mammalian hosts and the aviadenoviridae having avian hosts. The penton base is a major structural protein forming part of the penton which consists of a base and a fibre, the pentons hold a morphologically prominent position at the vertex capsomer in the adenovirus particle [PMID: 1316685]. In mammalian adenovirus there is only one tail on each base where as in avian adenovirus there are two [PMID: 1316685].

The penton base proteins are also Involved in virus secondary attachment to host cell after initial attachment by the fibre protein [PMID: 20615244].

GO terms

Biological Process

GO:0075509 endocytosis involved in viral entry into host cell

Molecular Function

No terms assigned in this category.

Cellular Component

GO:0039623 T=25 icosahedral viral capsid

Contributing signatures

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