This family includes an extracellular region from the envelope glycoprotein of Ebola and Marburg viruses. This region is also produced as a separate transcript that gives rise to a non-structural, secreted glycoprotein, which is produced in large amounts and has an unknown function. Processing of this protein may be involved in viral pathogenicity.
Jiyao W et al.(2023). "The conserved domain database in 2023.",