4UOM | pdb_00004uom

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B [auth L]	RAMPs	e4uomL1	A: a/b three-layered sandwiches	X: Insertion subdomain in DsbA-like	H: Insertion subdomain in DsbA-like	T: Insertion subdomain in DsbA-like	F: RAMPs	ECOD (v294.1)
A [auth H]	RAMPs	e4uomH1	A: a/b three-layered sandwiches	X: Insertion subdomain in DsbA-like	H: Insertion subdomain in DsbA-like	T: Insertion subdomain in DsbA-like	F: RAMPs	ECOD (v294.1)

Chain	Protein Name	Description	Organism Name	Gene Allele Name(s)	Domain Name(s)	Receptor Type	Receptor Description	Provenance Source
B [auth L]	Fab F5	V-LAMBDA-C-KAPPA	Homo sapiens (human)	IGLV1-4401, IGLJ302, IGKC01, IGKC04	V-DOMAIN V-LAMBDA, C-DOMAIN C-KAPPA	IG	FAB-GAMMA-2_V-LAMBDA-C-KAPPA	IMGT (202611-0)
A [auth H]	Fab F5	VH-CH1	Homo sapiens (human)	IGHV1-301, IGHJ603, IGHG201, IGHG401, IGHG404, IGHG206, IGHG205, IGHG203, IGHG2*04	V-DOMAIN VH, C-DOMAIN CH1	IG	FAB-GAMMA-2_V-LAMBDA-C-KAPPA	IMGT (202611-0)

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
B [auth L]	Light Chain	IGLV1	Lambda	-	SAbDab (2026-03-27)
A [auth H]	Heavy Chain	IGHV1	-	-	SAbDab (2026-03-27)

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.

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