9AXN | pdb_00009axn

Crystal Structure of Anti-Fentanyl Antibody HY11-6B2_Mu Fab in Complex with Fentanyl

External Resource: Annotation

Domain Annotation: ECOD Classification
SAbDab Antibody Annotation
Protein Modification Annotation

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
P [auth R]	WD40	e9axnR1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: WD40	ECOD (v294.2)
N [auth P]	WD40	e9axnP1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: WD40	ECOD (v294.2)
L [auth N]	WD40	e9axnN1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: WD40	ECOD (v294.2)
I [auth J]	WD40	e9axnJ1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: WD40	ECOD (v294.2)
H [auth F]	WD40	e9axnF1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: WD40	ECOD (v294.2)
F [auth B]	WD40	e9axnB1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: WD40	ECOD (v294.2)
E [auth D]	WD40	e9axnD1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: WD40	ECOD (v294.2)
B [auth L]	GFO_IDH_MocA	e9axnL01	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: GFO_IDH_MocA	ECOD (v294.2)
O [auth Q]	WD40	e9axnQ1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: WD40	ECOD (v294.2)
M [auth O]	WD40	e9axnO1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: WD40	ECOD (v294.2)
K [auth M]	WD40	e9axnM1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: WD40	ECOD (v294.2)
J [auth I]	WD40	e9axnI1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: WD40	ECOD (v294.2)
G [auth E]	WD40	e9axnE1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: WD40	ECOD (v294.2)
D [auth C]	WD40	e9axnC1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: WD40	ECOD (v294.2)
C [auth A]	WD40	e9axnA1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: WD40	ECOD (v294.2)
A [auth H]	GFO_IDH_MocA	e9axnH01	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: GFO_IDH_MocA	ECOD (v294.2)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
B [auth L], E [auth D], F [auth B], H [auth F], I [auth J], B [auth L], E [auth D], F [auth B], H [auth F], I [auth J], L [auth N], N [auth P], P [auth R]	Light Chain	IGKV6	Kappa	N-phenyl-N-[1-(2-phenylethyl)piperidin-4-yl]propanamide	SAbDab (2026-06-05)
A [auth H], C [auth A], D [auth C], G [auth E], J [auth I], A [auth H], C [auth A], D [auth C], G [auth E], J [auth I], K [auth M], M [auth O], O [auth Q]	Heavy Chain	IGHV1	-	N-phenyl-N-[1-(2-phenylethyl)piperidin-4-yl]propanamide	SAbDab (2026-06-05)

Protein Modification Annotation

Modified Residue(s)
Chain	Residue(s)	Description
A [auth H], C [auth A], D [auth C], G [auth E], J [auth I], A [auth H], C [auth A], D [auth C], G [auth E], J [auth I], K [auth M], M [auth O], O [auth Q]	PCA	Parent Component: GLN : AA0031 : 2-pyrrolidone-5-carboxylic acid (Gln) MOD:00040 , 2-pyrrolidone-5-carboxylic acid (Glu) MOD:00420

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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.