4UAO | pdb_00004uao

Crystal structure of Apical Membrane Antigen 1 from Plasmodium Knowlesi in complex with an invasion inhibitory antibody

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
Protein Family 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	d4uaoc_	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	V set domains (antibody variable domain-like)	automated matches	(Rattus norvegicus ) [TaxId: 10116 ],	SCOPe (2.08)
B	d4uaob2	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	C1 set domains (antibody constant domain-like)	automated matches	(Rattus norvegicus ) [TaxId: 10116 ],	SCOPe (2.08)
B	d4uaob1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	automated matches	automated matches	(Rattus norvegicus ) [TaxId: 10116 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B	SCOP2B Superfamily	Immunoglobulin (Ig) domain-like	8070449	3000071	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	Ribosom_S12_S23	e4uaoC2	A: a/b three-layered sandwiches	X: HTH	H: HTH	T: Three-helical HTH	F: Ribosom_S12_S23	ECOD (v294.1)
C	EF-hand_1, EF-hand_6, EF-hand_7	e4uaoC3	A: a/b three-layered sandwiches	X: Lipocalins/Streptavidin	H: SAM/DNA-glycosylase	T: SAM domain-like	F: EF-hand_1, EF-hand_6, EF-hand_7	ECOD (v294.1)
B	Ribosom_S12_S23	e4uaoB1	A: a/b three-layered sandwiches	X: HTH	H: HTH	T: Three-helical HTH	F: Ribosom_S12_S23	ECOD (v294.1)
A	Sema	e4uaoA1	A: a/b three-layered sandwiches	X: MocoBD/DmpA-related	H: MocoBD/DmpA-related	T: Retrovirus capsid protein-C	F: Sema	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
C	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)
A	3.50.4.10	Alpha Beta	3-Layer(bba) Sandwich	Hepatocyte Growth Factor	Hepatocyte Growth Factor	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
C	R31C2 Fab	VH-CH1	Rattus norvegicus (Norway rat)	IGHV5S1001, IGHJ201, IGHG2A*01	V-DOMAIN VH, C-DOMAIN CH1	IG	FAB-GAMMA-2A_KAPPA	IMGT (202613-0)
B	R31C2 Fab	L-KAPPA	Rattus norvegicus (Norway rat)	IGKV14S101, IGKJ501, IGKC*01	V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA	IG	FAB-GAMMA-2A_KAPPA	IMGT (202613-0)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
C	Heavy Chain	IGHV5	-	apical merozoite antigen 1	SAbDab (2026-04-10)
B	Light Chain	IGKV14	Kappa	apical merozoite antigen 1	SAbDab (2026-04-10)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
C	PF07654	Immunoglobulin C1-set domain (C1-set)	Immunoglobulin C1-set domain		Domain
B	PF07654	Immunoglobulin C1-set domain (C1-set)	Immunoglobulin C1-set domain		Domain
A	PF02430	Apical membrane antigen 1 (AMA-1)	Apical membrane antigen 1	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
C	immunoglobulin R31C2 VH and CH1 regions	protein binding binding signaling receptor binding immunoglobulin receptor binding antigen binding	humoral immune response biological process involved in interspecies interaction between organisms response to stimulus response to other organism defense response immune response antibacterial humoral response defense response to symbiont response to external stimulus antimicrobial humoral response response to biotic stimulus defense response to bacterium defense response to other organism response to stress immune system process humoral immune response biological process involved in interspecies interaction between organisms response to stimulus response to other organism defense response immune response antibacterial humoral response defense response to symbiont response to external stimulus antimicrobial humoral response response to biotic stimulus defense response to bacterium defense response to other organism response to stress immune system process response to bacterium response to external biotic stimulus adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains lymphocyte mediated immunity positive regulation of biological process positive regulation of response to stimulus complement activation humoral immune response mediated by circulating immunoglobulin positive regulation of immune response leukocyte mediated immunity regulation of immune system process positive regulation of immune system process complement activation, classical pathway regulation of biological process biological regulation immunoglobulin mediated immune response adaptive immune response immune effector process regulation of response to stimulus B cell mediated immunity regulation of immune response activation of immune response	protein-containing complex cellular anatomical structure extracellular region extracellular protein-containing complex immunoglobulin complex, circulating immunoglobulin complex
B	immunoglobulin R31C2 light chain	-	-	protein-containing complex plasma membrane protein complex membrane plasma membrane membrane protein complex alpha-beta T cell receptor complex cell periphery cellular anatomical structure plasma membrane signaling receptor complex signaling receptor complex T cell receptor complex
A	Apical merozoite antigen 1	-	-	cellular anatomical structure membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
C	IPR003597	Immunoglobulin C1-set	Domain
C	IPR013783	Immunoglobulin-like fold	Homologous Superfamily
C	IPR036179	Immunoglobulin-like domain superfamily	Homologous Superfamily
C	IPR007110	Immunoglobulin-like domain	Domain
C	IPR050380	Immune Recognition and Response Modulators	Family
B	IPR003597	Immunoglobulin C1-set	Domain
B	IPR013783	Immunoglobulin-like fold	Homologous Superfamily
B	IPR036179	Immunoglobulin-like domain superfamily	Homologous Superfamily
B	IPR007110	Immunoglobulin-like domain	Domain
B	IPR050380	Immune Recognition and Response Modulators	Family
B	IPR003006	Immunoglobulin/major histocompatibility complex, conserved site	Conserved Site
A	IPR024056	Apical membrane antigen 1 domain superfamily	Homologous Superfamily
A	IPR003298	Apical membrane antigen 1	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.