InterPro domain: IPR021042

This entry represents eukaryotic and viral proteins of approximately 140 amino acids in length. The UL139 product shares sequence homology with human CD24, a signal transducer modulating B-cell activation responses, and the sequences in the G1c variant of UL139 contained a specific attachment site of prokaryotic membrane lipoprotein lipid [ 1 ].

1. Human cytomegalovirus (HCMV) UL139 open reading frame: Sequence variants are clustered into three major genotypes. J. Med. Virol. 78, 517-22