Annotations: 9ISH

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A [auth C]	Coronavirus replicase NSP15, middle domain / Coronavirus replicase NSP15, N-terminal oligomerisation	e9ishC1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: Coronavirus replicase NSP15, middle domain / Coronavirus replicase NSP15, N-terminal oligomerisation	ECOD (v295.2)

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
B [auth D], D [auth B]	Heavy Chain	IGHV1	-	glycoprotein d	SAbDab (2026-08-21)

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
B [auth D], D [auth B]	Nanobody 32	-	-	-
A [auth C], C [auth A]	Glycoprotein D	molecular function activator activity molecular function regulator activity signaling receptor regulator activity receptor ligand activity signaling receptor activator activity cation binding ion binding binding metal ion binding small molecule binding	virion attachment to host cell biological process involved in interspecies interaction between organisms receptor-mediated virion attachment to host cell adhesion of symbiont to host cell entry receptor-mediated virion attachment to host cell viral process viral life cycle adhesion of symbiont to host biological process involved in interaction with host biological process involved in symbiotic interaction symbiont entry into host cell symbiont entry into host	virion component viral membrane viral envelope cellular anatomical structure membrane virion membrane host cellular component host intracellular part host cell cytoplasm host cell part host cell Golgi apparatus host intracellular region other organism part host cell cytoplasm part

Chains	Accession	Name	Type
A [auth C], C [auth A]	IPR036179	Immunoglobulin-like domain superfamily	Homologous Superfamily
A [auth C], C [auth A]	IPR002896	Herpesvirus glycoprotein D/GG/GX domain	Domain

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.

9ISH | pdb_00009ish