8DB4 | pdb_00008db4

Crystal structure of the peanut allergen Ara h 2 bound by two neutralizing antibodies 22S1 and 13T1

External Resource: Annotation

Domain Annotation: ECOD Classification
Domain Annotation: CATH
SAbDab Antibody Annotation
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
F	Cas_Cas7	e8db4F1	A: alpha bundles	X: RNase A-like	H: Cytochrome P450	T: Cytochrome P450	F: Cas_Cas7	ECOD (develop294)
E	Cas_Cas7	e8db4E1	A: alpha bundles	X: RNase A-like	H: Cytochrome P450	T: Cytochrome P450	F: Cas_Cas7	ECOD (develop294)
J	Cas_Cas7	e8db4J1	A: alpha bundles	X: RNase A-like	H: Cytochrome P450	T: Cytochrome P450	F: Cas_Cas7	ECOD (develop294)
D	Cas_Cas7	e8db4D1	A: alpha bundles	X: RNase A-like	H: Cytochrome P450	T: Cytochrome P450	F: Cas_Cas7	ECOD (develop294)
C	Cas_Cas7	e8db4C1	A: alpha bundles	X: RNase A-like	H: Cytochrome P450	T: Cytochrome P450	F: Cas_Cas7	ECOD (develop294)
I	Cas_Cas7	e8db4I1	A: alpha bundles	X: RNase A-like	H: Cytochrome P450	T: Cytochrome P450	F: Cas_Cas7	ECOD (develop294)
H	Cas_Cas7	e8db4H1	A: alpha bundles	X: RNase A-like	H: Cytochrome P450	T: Cytochrome P450	F: Cas_Cas7	ECOD (develop294)
B	Cas_Cas7	e8db4B1	A: alpha bundles	X: RNase A-like	H: Cytochrome P450	T: Cytochrome P450	F: Cas_Cas7	ECOD (develop294)
G	Cas_Cas7	e8db4G1	A: alpha bundles	X: RNase A-like	H: Cytochrome P450	T: Cytochrome P450	F: Cas_Cas7	ECOD (develop294)
A	Cas_Cas7	e8db4A1	A: alpha bundles	X: RNase A-like	H: Cytochrome P450	T: Cytochrome P450	F: Cas_Cas7	ECOD (develop294)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
F	1.10.110.10	Mainly Alpha	Orthogonal Bundle	Hydrophobic Seed Protein	Plant lipid-transfer and hydrophobic proteins	CATH (utative)
E	1.10.110.10	Mainly Alpha	Orthogonal Bundle	Hydrophobic Seed Protein	Plant lipid-transfer and hydrophobic proteins	CATH (utative)
J	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
D	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
C	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
I	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
H	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
B	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
G	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
A	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
D, J	Light Chain	IGKV1	Kappa	ara h 2 allergen	SAbDab (2026-03-20)
C, I	Heavy Chain	IGHV3	-	ara h 2 allergen	SAbDab (2026-03-20)
B, H	Light Chain	IGKV3	Kappa	ara h 2 allergen	SAbDab (2026-03-20)
A, G	Heavy Chain	IGHV3	-	ara h 2 allergen	SAbDab (2026-03-20)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
E, F	PF00234	Protease inhibitor/seed storage/LTP family (Tryp_alpha_amyl)	Protease inhibitor/seed storage/LTP family	This family is composed of trypsin-alpha amylase inhibitors, seed storage proteins and lipid transfer proteins from plants.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
E, F	Ara h 2 allergen	nutrient reservoir activity cation binding ion binding binding metal ion binding small molecule binding	-	-
D, J	22S1 Light chain	-	-	-
C, I	22S1 Heavy chain	-	-	-
B, H	13T1 Light chain	-	-	-
A, G	13T1 Heavy chain	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
E, F	IPR036312	Bifunctional inhibitor/plant lipid transfer protein/seed storage helical domain superfamily	Homologous Superfamily
E, F	IPR016140	Bifunctional inhibitor/plant lipid transfer protein/seed storage helical domain	Domain
E, F	IPR000617	Napin/ 2S seed storage protein/Conglutin	Family

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.