Plays a role in viral entry into host cells. Forms a pentameric complex at the surface of the viral envelope together with gH, gL, UL130 and UL131. This complex is required for entry in epithelial, endothelial and myeloid host cells. Mechanistically, engages host receptor(s) including neurophilin 2/NRP2 to mediate infection. Human cytomegalovirus (HCMV) (strain AD169) UL130 Protein (His & SUMO) is expressed in E. coli expression system with N-6xHis-SUMO tag. The predicted molecular weight is 37.7 kDa and the accession number is P16772.