Annotations: 6A3W

Complex structure of 4-1BB and utomilumab

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
IMGT Antibody Annotation
SAbDab Antibody Annotation
Thera-SAbDab Antibody Annotation
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
K	d6a3wk_	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	V set domains (antibody variable domain-like)	automated matches	Human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
H	d6a3wh_	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	V set domains (antibody variable domain-like)	automated matches	Human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
E	d6a3we_	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	V set domains (antibody variable domain-like)	automated matches	Human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
B	d6a3wb_	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	V set domains (antibody variable domain-like)	automated matches	Human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
J	d6a3wj_	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	automated matches	automated matches	Human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
G	d6a3wg_	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	automated matches	automated matches	Human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
D	d6a3wd_	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	automated matches	automated matches	Human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
A	d6a3wa_	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	automated matches	automated matches	Human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
L	Cadherin	e6a3wL1	A: alpha arrays	X: fingers domain in bacteriophage RB69-like DNA polymerase I	H: fingers domain in bacteriophage RB69-like DNA polymerase I	T: fingers domain in bacteriophage RB69-like DNA polymerase I	F: Cadherin	ECOD (v295.2)
I	Cadherin	e6a3wI1	A: alpha arrays	X: fingers domain in bacteriophage RB69-like DNA polymerase I	H: fingers domain in bacteriophage RB69-like DNA polymerase I	T: fingers domain in bacteriophage RB69-like DNA polymerase I	F: Cadherin	ECOD (v295.2)
F	Cadherin	e6a3wF1	A: alpha arrays	X: fingers domain in bacteriophage RB69-like DNA polymerase I	H: fingers domain in bacteriophage RB69-like DNA polymerase I	T: fingers domain in bacteriophage RB69-like DNA polymerase I	F: Cadherin	ECOD (v295.2)
C	Cadherin	e6a3wC1	A: alpha arrays	X: fingers domain in bacteriophage RB69-like DNA polymerase I	H: fingers domain in bacteriophage RB69-like DNA polymerase I	T: fingers domain in bacteriophage RB69-like DNA polymerase I	F: Cadherin	ECOD (v295.2)
K	Cadherin	e6a3wK1	A: alpha arrays	X: fingers domain in bacteriophage RB69-like DNA polymerase I	H: fingers domain in bacteriophage RB69-like DNA polymerase I	T: fingers domain in bacteriophage RB69-like DNA polymerase I	F: Cadherin	ECOD (v295.2)
H	Cadherin	e6a3wH1	A: alpha arrays	X: fingers domain in bacteriophage RB69-like DNA polymerase I	H: fingers domain in bacteriophage RB69-like DNA polymerase I	T: fingers domain in bacteriophage RB69-like DNA polymerase I	F: Cadherin	ECOD (v295.2)
E	PIN	e6a3wE1	A: alpha arrays	X: fingers domain in bacteriophage RB69-like DNA polymerase I	H: fingers domain in bacteriophage RB69-like DNA polymerase I	T: fingers domain in bacteriophage RB69-like DNA polymerase I	F: PIN	ECOD (v295.2)
B	Cadherin	e6a3wB1	A: alpha arrays	X: fingers domain in bacteriophage RB69-like DNA polymerase I	H: fingers domain in bacteriophage RB69-like DNA polymerase I	T: fingers domain in bacteriophage RB69-like DNA polymerase I	F: Cadherin	ECOD (v295.2)
J	Cadherin	e6a3wJ1	A: alpha arrays	X: fingers domain in bacteriophage RB69-like DNA polymerase I	H: fingers domain in bacteriophage RB69-like DNA polymerase I	T: fingers domain in bacteriophage RB69-like DNA polymerase I	F: Cadherin	ECOD (v295.2)
G	Cadherin	e6a3wG1	A: alpha arrays	X: fingers domain in bacteriophage RB69-like DNA polymerase I	H: fingers domain in bacteriophage RB69-like DNA polymerase I	T: fingers domain in bacteriophage RB69-like DNA polymerase I	F: Cadherin	ECOD (v295.2)
D	Cadherin	e6a3wD1	A: alpha arrays	X: fingers domain in bacteriophage RB69-like DNA polymerase I	H: fingers domain in bacteriophage RB69-like DNA polymerase I	T: fingers domain in bacteriophage RB69-like DNA polymerase I	F: Cadherin	ECOD (v295.2)
A	PIN	e6a3wA1	A: alpha arrays	X: fingers domain in bacteriophage RB69-like DNA polymerase I	H: fingers domain in bacteriophage RB69-like DNA polymerase I	T: fingers domain in bacteriophage RB69-like DNA polymerase I	F: PIN	ECOD (v295.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
I	2.10.50.10	Mainly Beta	Ribbon	Tumor Necrosis Factor Receptor, subunit A	domain 2	CATH (utative)
C	2.10.50.10	Mainly Beta	Ribbon	Tumor Necrosis Factor Receptor, subunit A	domain 2	CATH (utative)

IMGT Antibody Annotation IMGT Database Homepage

Chain	Protein Name	Description	Organism Name	Gene Allele Name(s)	Domain Name(s)	Receptor Type	Receptor Description	Provenance Source
B, E, H, K	mAb utomilumab	V-LAMBDA	Homo sapiens (human)	IGLV3-101, IGLJ201, IGLJ302, IGLJ101, IGLJ3*01	V-DOMAIN V-LAMBDA	IG	FV-HEAVY_LAMBDA	IMGT (202636-0)
A, D, G, J	mAb utomilumab	VH	Homo sapiens (human)	IGHV5-10-104, IGHJ401, IGHJ402, IGHJ403	V-DOMAIN VH	IG	FV-HEAVY_LAMBDA	IMGT (202636-0)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
B, E, H, K	Light Chain	IGLV3	Lambda	tumor necrosis factor receptor superfamily member 9	SAbDab (2026-09-18)
A, D, G, J	Heavy Chain	IGHV5	-	tumor necrosis factor receptor superfamily member 9	SAbDab (2026-09-18)

Thera-SAbDab Antibody Annotation Thera-SAbDab Database Homepage

Chain	Name	Target	Provenance Source
B, E, H, K	Utomilumab	TNFRSF9/CD137/4-1BB	Therapeutic SAbDab (2026-09-18)
A, D, G, J	Utomilumab	TNFRSF9/CD137/4-1BB	Therapeutic SAbDab (2026-09-18)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
C, F, I, L	PF00020	TNFR/NGFR cysteine-rich region (TNFR_c6)	TNFR/NGFR cysteine-rich region		Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
C, F, I, L	Tumor necrosis factor receptor superfamily member 9	molecular transducer activity signaling receptor activity	cellular process apoptotic process cell death programmed cell death negative regulation of cell population proliferation regulation of biological process cell population proliferation regulation of cellular process regulation of cell population proliferation negative regulation of cellular process biological regulation negative regulation of biological process	cell periphery cellular anatomical structure plasma membrane membrane cell surface external side of plasma membrane side of membrane
B, E, H, K	utomilumab VL	-	-	-
A, D, G, J	utomilumab VH	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
C, F, I, L	IPR009030	Growth factor receptor cysteine-rich domain superfamily	Homologous Superfamily
C, F, I, L	IPR001368	TNFR/NGFR cysteine-rich region	Domain
C, F, I, L	IPR020413	Tumour necrosis factor receptor 9	Family
C, F, I, L	IPR034020	Tumour necrosis factor receptor 9, N-terminal	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
C, F, I, L	: Q07011	ulcerative colitis malignant colon neoplasm medulloblastoma tuberculosis benign colon neoplasm colorectal cancer gastric cancer hereditary diffuse gastric adenocarcinoma kidney cancer lung cancer Malignant neoplasm of kidney psoriasis cancer Crohn disease gastric neoplasm ulcerative colitis malignant colon neoplasm medulloblastoma tuberculosis benign colon neoplasm colorectal cancer gastric cancer hereditary diffuse gastric adenocarcinoma kidney cancer lung cancer Malignant neoplasm of kidney psoriasis cancer Crohn disease gastric neoplasm inflammatory bowel disease kidney neoplasm lymphatic system disease rheumatoid arthritis colonic neoplasm cutaneous lupus erythematosus hematologic disease interstitial cystitis lung adenocarcinoma