Annotations: 8EAY

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
C [auth L]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
B [auth H]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
C [auth L]	Light Chain	IGLV3	Lambda	fusion glycoprotein f0	SAbDab (2026-02-06)
B [auth H]	Heavy Chain	IGHV4	-	fusion glycoprotein f0	SAbDab (2026-02-06)

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
C [auth L]	4I3 light chain protein	-	-	-
B [auth H]	4I3 heavy chain protein	-	-	-
A	Fusion glycoprotein F0	-	membrane organization cellular component organization membrane fusion fusion of virus membrane with host plasma membrane viral process cellular process cellular component organization or biogenesis membrane fusion involved in viral entry into host cell biological process involved in interspecies interaction between organisms symbiont entry into host cell symbiont entry into host viral life cycle biological process involved in interaction with host biological process involved in symbiotic interaction	virion component viral membrane viral envelope host cell plasma membrane host cellular component cellular anatomical structure host cell part host cell membrane other organism part virion membrane