5ANY | pdb_00005any

Electron cryo-microscopy of chikungunya virus in complex with neutralizing antibody Fab CHK265

External Resource: Annotation

Domain Annotation: ECOD Classification
IMGT Antibody Annotation
SAbDab Antibody 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)
J		e5anyJ2	A: a/b three-layered sandwiches	X: CBS-domain	H: Porins	T: Invertebrate chitin-binding proteins	F:	ECOD (v294.1)
J	EF-hand_1, EF-hand_6, EF-hand_7	e5anyJ1	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)
L		e5anyL2	A: a/b three-layered sandwiches	X: CBS-domain	H: Porins	T: Invertebrate chitin-binding proteins	F:	ECOD (v294.1)
L	EF-hand_1, EF-hand_6, EF-hand_7	e5anyL1	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)
K		e5anyK2	A: a/b three-layered sandwiches	X: CBS-domain	H: Porins	T: Invertebrate chitin-binding proteins	F:	ECOD (v294.1)
K	EF-hand_1, EF-hand_6, EF-hand_7	e5anyK1	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)
I		e5anyI1	A: a/b three-layered sandwiches	X: CBS-domain	H: Porins	T: Invertebrate chitin-binding proteins	F:	ECOD (v294.1)
I	EF-hand_1, EF-hand_6, EF-hand_7	e5anyI2	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)
M		e5anyM1	A: a/b three-layered sandwiches	X: CBS-domain	H: Porins	T: Invertebrate chitin-binding proteins	F:	ECOD (v294.1)
O		e5anyO1	A: a/b three-layered sandwiches	X: CBS-domain	H: Porins	T: Invertebrate chitin-binding proteins	F:	ECOD (v294.1)
P		e5anyP1	A: a/b three-layered sandwiches	X: CBS-domain	H: Porins	T: Invertebrate chitin-binding proteins	F:	ECOD (v294.1)
N		e5anyN1	A: a/b three-layered sandwiches	X: CBS-domain	H: Porins	T: Invertebrate chitin-binding proteins	F:	ECOD (v294.1)
H		e5anyH1	A: a/b three-layered sandwiches	X: CBS-domain	H: Porins	T: Invertebrate chitin-binding proteins	F:	ECOD (v294.1)
F		e5anyF1	A: a/b three-layered sandwiches	X: CBS-domain	H: Porins	T: Invertebrate chitin-binding proteins	F:	ECOD (v294.1)
D		e5anyD1	A: a/b three-layered sandwiches	X: CBS-domain	H: Porins	T: Invertebrate chitin-binding proteins	F:	ECOD (v294.1)
B		e5anyB1	A: a/b three-layered sandwiches	X: CBS-domain	H: Porins	T: Invertebrate chitin-binding proteins	F:	ECOD (v294.1)
G		e5anyG1	A: a/b three-layered sandwiches	X: CBS-domain	H: Porins	T: Invertebrate chitin-binding proteins	F:	ECOD (v294.1)
E		e5anyE1	A: a/b three-layered sandwiches	X: CBS-domain	H: Porins	T: Invertebrate chitin-binding proteins	F:	ECOD (v294.1)
C		e5anyC1	A: a/b three-layered sandwiches	X: CBS-domain	H: Porins	T: Invertebrate chitin-binding proteins	F:	ECOD (v294.1)
A		e5anyA1	A: a/b three-layered sandwiches	X: CBS-domain	H: Porins	T: Invertebrate chitin-binding proteins	F:	ECOD (v294.1)

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
I, J, K, L	Fab CHK265	VH-CH1	Mus musculus (house mouse)	IGHV9-101, IGHJ201, IGHG2C01, IGHG2C02, IGHG2C*03	V-DOMAIN VH, C-DOMAIN CH1	IG	FAB-GAMMA-2C_LAMBDA	IMGT (202611-0)
M, N, O, P	Fab CHK265	L-LAMBDA	Mus musculus (house mouse)	IGLV101, IGLJ101, IGLC1*01	V-DOMAIN V-LAMBDA, C-DOMAIN C-LAMBDA	IG	FAB-GAMMA-2C_LAMBDA	IMGT (202611-0)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
I, J, K, L	Heavy Chain	IGHV9	-	e2 \| e1	SAbDab (2026-03-27)
M, N, O, P	Light Chain	IGLV1	Lambda	e2 \| e1	SAbDab (2026-03-27)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
I, J, K, L	FAB CHK265	-	-	-
M, N, O, P	FAB	-	-	-
B, D, F, H	E2	peptidase activity catalytic activity, acting on a protein serine hydrolase activity serine-type peptidase activity hydrolase activity serine-type endopeptidase activity catalytic activity endopeptidase activity RNA binding binding nucleic acid binding passive transmembrane transporter activity channel activity transporter activity peptidase activity catalytic activity, acting on a protein serine hydrolase activity serine-type peptidase activity hydrolase activity serine-type endopeptidase activity catalytic activity endopeptidase activity RNA binding binding nucleic acid binding passive transmembrane transporter activity channel activity transporter activity transmembrane transporter activity structural molecule activity identical protein binding protein binding	viral process fusion of virus membrane with host endosome membrane membrane fusion involved in viral entry into host cell biological process involved in interspecies interaction between organisms symbiont entry into host cell symbiont entry into host viral life cycle biological process involved in interaction with host biological process involved in symbiotic interaction transmembrane transport localization transport monoatomic ion transmembrane transport monoatomic ion transport viral process fusion of virus membrane with host endosome membrane membrane fusion involved in viral entry into host cell biological process involved in interspecies interaction between organisms symbiont entry into host cell symbiont entry into host viral life cycle biological process involved in interaction with host biological process involved in symbiotic interaction transmembrane transport localization transport monoatomic ion transmembrane transport monoatomic ion transport cellular process establishment of localization proteolysis metabolic process primary metabolic process protein metabolic process macromolecule metabolic process virion attachment to host cell receptor-mediated virion attachment to host cell adhesion of symbiont to host cell entry receptor-mediated virion attachment to host cell adhesion of symbiont to host	host intracellular membrane-bounded organelle host cellular component host intracellular part host cell endoplasmic reticulum other organism part host cell cytoplasm part host intracellular organelle cellular anatomical structure host cell cytoplasm host cell part host intracellular region host cell plasma membrane host cell membrane virion component host intracellular membrane-bounded organelle host cellular component host intracellular part host cell endoplasmic reticulum other organism part host cell cytoplasm part host intracellular organelle cellular anatomical structure host cell cytoplasm host cell part host intracellular region host cell plasma membrane host cell membrane virion component virion membrane viral capsid icosahedral viral capsid T=4 icosahedral viral capsid host cell Golgi apparatus host cell nucleus
A, C, E, G	E1	peptidase activity catalytic activity, acting on a protein serine hydrolase activity serine-type peptidase activity hydrolase activity serine-type endopeptidase activity catalytic activity endopeptidase activity RNA binding binding nucleic acid binding passive transmembrane transporter activity channel activity transporter activity peptidase activity catalytic activity, acting on a protein serine hydrolase activity serine-type peptidase activity hydrolase activity serine-type endopeptidase activity catalytic activity endopeptidase activity RNA binding binding nucleic acid binding passive transmembrane transporter activity channel activity transporter activity transmembrane transporter activity structural molecule activity identical protein binding protein binding	viral process fusion of virus membrane with host endosome membrane membrane fusion involved in viral entry into host cell biological process involved in interspecies interaction between organisms symbiont entry into host cell symbiont entry into host viral life cycle biological process involved in interaction with host biological process involved in symbiotic interaction transmembrane transport localization transport monoatomic ion transmembrane transport monoatomic ion transport viral process fusion of virus membrane with host endosome membrane membrane fusion involved in viral entry into host cell biological process involved in interspecies interaction between organisms symbiont entry into host cell symbiont entry into host viral life cycle biological process involved in interaction with host biological process involved in symbiotic interaction transmembrane transport localization transport monoatomic ion transmembrane transport monoatomic ion transport cellular process establishment of localization proteolysis metabolic process primary metabolic process protein metabolic process macromolecule metabolic process virion attachment to host cell receptor-mediated virion attachment to host cell adhesion of symbiont to host cell entry receptor-mediated virion attachment to host cell adhesion of symbiont to host	host intracellular membrane-bounded organelle host cellular component host intracellular part host cell endoplasmic reticulum other organism part host cell cytoplasm part host intracellular organelle cellular anatomical structure host cell cytoplasm host cell part host intracellular region host cell plasma membrane host cell membrane virion component host intracellular membrane-bounded organelle host cellular component host intracellular part host cell endoplasmic reticulum other organism part host cell cytoplasm part host intracellular organelle cellular anatomical structure host cell cytoplasm host cell part host intracellular region host cell plasma membrane host cell membrane virion component virion membrane viral capsid icosahedral viral capsid T=4 icosahedral viral capsid host cell Golgi apparatus host cell nucleus

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
B, D, F, H	IPR002533	Alphavirus E3 spike glycoprotein	Domain
B, D, F, H	IPR038055	Flaviviral glycoprotein E, dimerisation domain	Homologous Superfamily
B, D, F, H	IPR014756	Immunoglobulin E-set	Homologous Superfamily
B, D, F, H	IPR042304	Alphavirus E2 glycoprotein, domain A	Homologous Superfamily
B, D, F, H	IPR036253	Flavivirus glycoprotein, central and dimerisation domain superfamily	Homologous Superfamily
B, D, F, H	IPR043504	Peptidase_S1_PA_chymotrypsin	Unknown
B, D, F, H	IPR009003	Peptidase S1, PA clan	Homologous Superfamily
B, D, F, H	IPR042305	Alphavirus E2 glycoprotein, domain B	Homologous Superfamily
B, D, F, H	IPR042306	Alphavirus E2 glycoprotein, domain C	Homologous Superfamily
B, D, F, H	IPR000936	Alphavirus E2 glycoprotein	Family
B, D, F, H	IPR000930	Peptidase S3, togavirin	Domain
B, D, F, H	IPR002548	Alphavirus E1 glycoprotein	Domain
B, D, F, H	IPR000336	Flavivirus/Alphavirus glycoprotein, immunoglobulin-like domain superfamily	Homologous Superfamily
A, C, E, G	IPR002533	Alphavirus E3 spike glycoprotein	Domain
A, C, E, G	IPR038055	Flaviviral glycoprotein E, dimerisation domain	Homologous Superfamily
A, C, E, G	IPR014756	Immunoglobulin E-set	Homologous Superfamily
A, C, E, G	IPR042304	Alphavirus E2 glycoprotein, domain A	Homologous Superfamily
A, C, E, G	IPR036253	Flavivirus glycoprotein, central and dimerisation domain superfamily	Homologous Superfamily
A, C, E, G	IPR043504	Peptidase_S1_PA_chymotrypsin	Unknown
A, C, E, G	IPR009003	Peptidase S1, PA clan	Homologous Superfamily
A, C, E, G	IPR042305	Alphavirus E2 glycoprotein, domain B	Homologous Superfamily
A, C, E, G	IPR042306	Alphavirus E2 glycoprotein, domain C	Homologous Superfamily
A, C, E, G	IPR000936	Alphavirus E2 glycoprotein	Family
A, C, E, G	IPR000930	Peptidase S3, togavirin	Domain
A, C, E, G	IPR002548	Alphavirus E1 glycoprotein	Domain
A, C, E, G	IPR000336	Flavivirus/Alphavirus glycoprotein, immunoglobulin-like domain superfamily	Homologous Superfamily