Annotations: 4ALX

Crystal Structure of Ls-AChBP complexed with the potent nAChR antagonist DHbE

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
J	d4alxj_	All beta proteins	Nicotinic receptor ligand binding domain-like	Nicotinic receptor ligand binding domain-like	Nicotinic receptor ligand binding domain-like	automated matches	GREAT POND SNAIL (Lymnaea stagnalis ) [TaxId: 6523 ],	SCOPe (2.08)
I	d4alxi_	All beta proteins	Nicotinic receptor ligand binding domain-like	Nicotinic receptor ligand binding domain-like	Nicotinic receptor ligand binding domain-like	automated matches	GREAT POND SNAIL (Lymnaea stagnalis ) [TaxId: 6523 ],	SCOPe (2.08)
H	d4alxh_	All beta proteins	Nicotinic receptor ligand binding domain-like	Nicotinic receptor ligand binding domain-like	Nicotinic receptor ligand binding domain-like	automated matches	GREAT POND SNAIL (Lymnaea stagnalis ) [TaxId: 6523 ],	SCOPe (2.08)
G	d4alxg_	All beta proteins	Nicotinic receptor ligand binding domain-like	Nicotinic receptor ligand binding domain-like	Nicotinic receptor ligand binding domain-like	automated matches	GREAT POND SNAIL (Lymnaea stagnalis ) [TaxId: 6523 ],	SCOPe (2.08)
F	d4alxf_	All beta proteins	Nicotinic receptor ligand binding domain-like	Nicotinic receptor ligand binding domain-like	Nicotinic receptor ligand binding domain-like	automated matches	GREAT POND SNAIL (Lymnaea stagnalis ) [TaxId: 6523 ],	SCOPe (2.08)
E	d4alxe_	All beta proteins	Nicotinic receptor ligand binding domain-like	Nicotinic receptor ligand binding domain-like	Nicotinic receptor ligand binding domain-like	automated matches	GREAT POND SNAIL (Lymnaea stagnalis ) [TaxId: 6523 ],	SCOPe (2.08)
D	d4alxd_	All beta proteins	Nicotinic receptor ligand binding domain-like	Nicotinic receptor ligand binding domain-like	Nicotinic receptor ligand binding domain-like	automated matches	GREAT POND SNAIL (Lymnaea stagnalis ) [TaxId: 6523 ],	SCOPe (2.08)
C	d4alxc_	All beta proteins	Nicotinic receptor ligand binding domain-like	Nicotinic receptor ligand binding domain-like	Nicotinic receptor ligand binding domain-like	automated matches	GREAT POND SNAIL (Lymnaea stagnalis ) [TaxId: 6523 ],	SCOPe (2.08)
B	d4alxb_	All beta proteins	Nicotinic receptor ligand binding domain-like	Nicotinic receptor ligand binding domain-like	Nicotinic receptor ligand binding domain-like	automated matches	GREAT POND SNAIL (Lymnaea stagnalis ) [TaxId: 6523 ],	SCOPe (2.08)
A	d4alxa_	All beta proteins	Nicotinic receptor ligand binding domain-like	Nicotinic receptor ligand binding domain-like	Nicotinic receptor ligand binding domain-like	automated matches	GREAT POND SNAIL (Lymnaea stagnalis ) [TaxId: 6523 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
J	SCOP2B Superfamily	Nicotinic receptor ligand binding domain-like	8035210	3000369	SCOP2B (2022-06-29)
I	SCOP2B Superfamily	Nicotinic receptor ligand binding domain-like	8035210	3000369	SCOP2B (2022-06-29)
H	SCOP2B Superfamily	Nicotinic receptor ligand binding domain-like	8035210	3000369	SCOP2B (2022-06-29)
G	SCOP2B Superfamily	Nicotinic receptor ligand binding domain-like	8035210	3000369	SCOP2B (2022-06-29)
F	SCOP2B Superfamily	Nicotinic receptor ligand binding domain-like	8035210	3000369	SCOP2B (2022-06-29)
E	SCOP2B Superfamily	Nicotinic receptor ligand binding domain-like	8035210	3000369	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	Nicotinic receptor ligand binding domain-like	8035210	3000369	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	Nicotinic receptor ligand binding domain-like	8035210	3000369	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Nicotinic receptor ligand binding domain-like	8035210	3000369	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Nicotinic receptor ligand binding domain-like	8035210	3000369	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
J	V-set	e4alxJ1	A: beta barrels	X: beta-Grasp	H: HTH	T: winged helix domain	F: V-set	ECOD (v294.2)
I	V-set	e4alxI1	A: beta barrels	X: beta-Grasp	H: HTH	T: winged helix domain	F: V-set	ECOD (v294.2)
H	V-set	e4alxH1	A: beta barrels	X: beta-Grasp	H: HTH	T: winged helix domain	F: V-set	ECOD (v294.2)
G	V-set	e4alxG1	A: beta barrels	X: beta-Grasp	H: HTH	T: winged helix domain	F: V-set	ECOD (v294.2)
F	V-set	e4alxF1	A: beta barrels	X: beta-Grasp	H: HTH	T: winged helix domain	F: V-set	ECOD (v294.2)
E	V-set	e4alxE1	A: beta barrels	X: beta-Grasp	H: HTH	T: winged helix domain	F: V-set	ECOD (v294.2)
D	V-set	e4alxD1	A: beta barrels	X: beta-Grasp	H: HTH	T: winged helix domain	F: V-set	ECOD (v294.2)
C	V-set	e4alxC1	A: beta barrels	X: beta-Grasp	H: HTH	T: winged helix domain	F: V-set	ECOD (v294.2)
B	V-set	e4alxB1	A: beta barrels	X: beta-Grasp	H: HTH	T: winged helix domain	F: V-set	ECOD (v294.2)
A	OSCP	e4alxA1	A: beta barrels	X: Flavodoxin-like	H: SH3	T: SH3	F: OSCP	ECOD (v294.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
J	2.70.170.10	Mainly Beta	Distorted Sandwich	Acetylcholine Binding Protein	Chain: A,	CATH (4.3.0)
I	2.70.170.10	Mainly Beta	Distorted Sandwich	Acetylcholine Binding Protein	Chain: A,	CATH (4.3.0)
H	2.70.170.10	Mainly Beta	Distorted Sandwich	Acetylcholine Binding Protein	Chain: A,	CATH (4.3.0)
G	2.70.170.10	Mainly Beta	Distorted Sandwich	Acetylcholine Binding Protein	Chain: A,	CATH (4.3.0)
F	2.70.170.10	Mainly Beta	Distorted Sandwich	Acetylcholine Binding Protein	Chain: A,	CATH (4.3.0)
E	2.70.170.10	Mainly Beta	Distorted Sandwich	Acetylcholine Binding Protein	Chain: A,	CATH (4.3.0)
D	2.70.170.10	Mainly Beta	Distorted Sandwich	Acetylcholine Binding Protein	Chain: A,	CATH (4.3.0)
C	2.70.170.10	Mainly Beta	Distorted Sandwich	Acetylcholine Binding Protein	Chain: A,	CATH (4.3.0)
B	2.70.170.10	Mainly Beta	Distorted Sandwich	Acetylcholine Binding Protein	Chain: A,	CATH (4.3.0)
A	2.70.170.10	Mainly Beta	Distorted Sandwich	Acetylcholine Binding Protein	Chain: A,	CATH (4.3.0)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D, E A, B, C, D, E, F, G, H, I, J	ACETYLCHOLINE BINDING PROTEIN	ligand-gated channel activity ligand-gated monoatomic ion channel activity extracellular ligand-gated monoatomic ion channel activity passive transmembrane transporter activity gated channel activity monoatomic ion channel activity channel activity monoatomic ion transmembrane transporter activity transporter activity transmembrane transporter activity molecular transducer activity transmembrane signaling receptor activity signaling receptor activity	-	cellular anatomical structure synaptic cleft extracellular region membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D, E A, B, C, D, E, F, G, H, I, J	IPR007110	Immunoglobulin-like domain	Domain
A, B, C, D, E A, B, C, D, E, F, G, H, I, J	IPR006202	Neurotransmitter-gated ion-channel ligand-binding domain	Domain
A, B, C, D, E A, B, C, D, E, F, G, H, I, J	IPR036734	Neurotransmitter-gated ion-channel ligand-binding domain superfamily	Homologous Superfamily
A, B, C, D, E A, B, C, D, E, F, G, H, I, J	IPR006201	Neurotransmitter-gated ion-channel	Family

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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.