4N1H | pdb_00004n1h

Structure of a single-domain camelid antibody fragment cAb-F11N in complex with the BlaP beta-lactamase from Bacillus licheniformis

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
IMGT Antibody Annotation
SAbDab Antibody Annotation
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)
C	d4n1hc_	Multi-domain proteins (alpha and beta)	beta-lactamase/transpeptidase-like	beta-lactamase/transpeptidase-like	beta-Lactamase/D-ala carboxypeptidase	automated matches	(Bacillus licheniformis ) [TaxId: 1402 ],	SCOPe (2.08)
A	d4n1ha_	Multi-domain proteins (alpha and beta)	beta-lactamase/transpeptidase-like	beta-lactamase/transpeptidase-like	beta-Lactamase/D-ala carboxypeptidase	automated matches	(Bacillus licheniformis ) [TaxId: 1402 ],	SCOPe (2.08)
D	d4n1hd1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	V set domains (antibody variable domain-like)	automated matches	(Lama glama ) [TaxId: 9844 ],	SCOPe (2.08)
D	d4n1hd3	Artifacts	Tags	Tags	Tags	C-terminal Tags	(Lama glama ) [TaxId: 9844 ],	SCOPe (2.08)
D	d4n1hd2	Artifacts	Tags	Tags	Tags	N-terminal Tags	(Lama glama ) [TaxId: 9844 ],	SCOPe (2.08)
B	d4n1hb1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	V set domains (antibody variable domain-like)	automated matches	(Lama glama ) [TaxId: 9844 ],	SCOPe (2.08)
B	d4n1hb3	Artifacts	Tags	Tags	Tags	C-terminal Tags	(Lama glama ) [TaxId: 9844 ],	SCOPe (2.08)
B	d4n1hb2	Artifacts	Tags	Tags	Tags	N-terminal Tags	(Lama glama ) [TaxId: 9844 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
C	SCOP2B Superfamily	beta-lactamase/transpeptidase-like	8037344	3001604	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	beta-lactamase/transpeptidase-like	8037344	3001604	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)
C	Thiolase_C	e4n1hC1	A: a/b three-layered sandwiches	X: Thioredoxin-like	H: Thioredoxin-like	T: Thioredoxin-like	F: Thiolase_C	ECOD (v294.1)
A	Thiolase_C	e4n1hA1	A: a/b three-layered sandwiches	X: Thioredoxin-like	H: Thioredoxin-like	T: Thioredoxin-like	F: Thiolase_C	ECOD (v294.1)
D	Thiolase_C	e4n1hD1	A: a/b three-layered sandwiches	X: Thioredoxin-like	H: Thioredoxin-like	T: Thioredoxin-like	F: Thiolase_C	ECOD (v294.1)
B	Thiolase_C	e4n1hB1	A: a/b three-layered sandwiches	X: Thioredoxin-like	H: Thioredoxin-like	T: Thioredoxin-like	F: Thiolase_C	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
C	3.40.710.10	Alpha Beta	3-Layer(aba) Sandwich	Beta-lactamase	DD-peptidase/beta-lactamase superfamily	CATH (4.3.0)
A	3.40.710.10	Alpha Beta	3-Layer(aba) Sandwich	Beta-lactamase	DD-peptidase/beta-lactamase superfamily	CATH (4.3.0)
D	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
B	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)

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, D	cAb-F11N	VH	Lama glama (llama)	IGHV3S7201, IGHJ401	V-DOMAIN VH	IG	(VH)	IMGT (202611-0)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
B, D	Heavy Chain	IGHV1	-	beta-lactamase	SAbDab (2026-03-27)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, C	Beta-lactamase	beta-lactamase activity hydrolase activity hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds, in cyclic amides catalytic activity hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds	antibiotic metabolic process beta-lactam antibiotic catabolic process catabolic process lactam catabolic process metabolic process cellular process small molecule metabolic process antibiotic catabolic process lactam metabolic process response to stimulus response to chemical response to antibiotic	cell periphery cellular anatomical structure plasma membrane membrane
B, D	Camelid heavy-chain antibody variable fragment cAb-F11N	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, C	IPR045155	Beta-lactamase class A, catalytic domain	Domain
A, C	IPR012338	Beta-lactamase/transpeptidase-like	Homologous Superfamily
A, C	IPR000871	Beta-lactamase, class-A	Family
A, C	IPR023650	Beta-lactamase, class-A active site	Active Site
A, C	IPR058139	Beta-lactamase BlaC, bacilli	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.