Annotations: 9NSD

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B [auth E]	Neur_chan_memb	e9nsdE1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: Neur_chan_memb	ECOD (v295.2)
G [auth B]	Neur_chan_memb	e9nsdB1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: Neur_chan_memb	ECOD (v295.2)

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
B [auth E], C, D [auth F]	Heavy Chain	IGHV3	-	cysteine-rich small secreted protein css, putative	SAbDab (2026-08-21)

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
E [auth G], F [auth H], I	Thrombospondin-related apical membrane protein	-	-	cell periphery cellular anatomical structure plasma membrane membrane
B [auth E], C, D [auth F]	Nanobody D7	-	-	-
A, G [auth B], H [auth D]	Cysteine-rich small secreted protein CSS, putative	-	-	-

Chains	Accession	Name	Type
E [auth G], F [auth H], I	IPR000884	Thrombospondin type-1 (TSP1) repeat	Repeat
E [auth G], F [auth H], I	IPR036383	Thrombospondin type-1 repeat superfamily	Homologous Superfamily

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.

9NSD | pdb_00009nsd