3IE4

b-glucan binding domain of Drosophila GNBP3 defines a novel family of pattern recognition receptor

External Resource: Annotation

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

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Fibronectin type III	8052001	3002063	SCOP2B (2022-06-29)
B	SCOP2 Family	CBM39-like	8044695	4004084	SCOP2 (2022-06-29)
B	SCOP2 Superfamily	Fibronectin type III	8052001	3002063	SCOP2 (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	CBM39	e3ie4A1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: CBM39	ECOD (1.6)
B	CBM39	e3ie4B1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: CBM39	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.60.40.2140	Mainly Beta	Sandwich	Immunoglobulin-like	Beta-1,3-glucan-recognition protein, N-terminal domain	CATH (4.3.0)
B	2.60.40.2140	Mainly Beta	Sandwich	Immunoglobulin-like	Beta-1,3-glucan-recognition protein, N-terminal domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF15886	Carbohydrate binding domain (family 32) (CBM39)	Carbohydrate binding domain (family 32)	This domain is found at the N-terminus of beta-1,3-glucan-binding proteins involved in recognition of invading micro-organisms. It often co-occurs with Pfam:PF00722 (Glycosyl hydrolases family 16). It recognises and binds to a triple-helical beta-1,3 ...	This domain is found at the N-terminus of beta-1,3-glucan-binding proteins involved in recognition of invading micro-organisms. It often co-occurs with Pfam:PF00722 (Glycosyl hydrolases family 16). It recognises and binds to a triple-helical beta-1,3-glucan structure [1-2].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Gram-Negative Binding Protein 3	binding polysaccharide binding (1->3)-beta-D-glucan binding carbohydrate binding polysaccharide immune receptor activity (1->3)-beta-D-glucan immune receptor activity molecular transducer activity pattern recognition receptor activity signaling receptor activity lipid binding lipopolysaccharide binding carbohydrate derivative binding	biological process involved in interspecies interaction between organisms antifungal innate immune response response to stimulus immune response response to other organism defense response defense response to symbiont response to external stimulus response to biotic stimulus defense response to fungus immune system process defense response to other organism response to stress innate immune response biological process involved in interspecies interaction between organisms antifungal innate immune response response to stimulus immune response response to other organism defense response defense response to symbiont response to external stimulus response to biotic stimulus defense response to fungus immune system process defense response to other organism response to stress innate immune response response to external biotic stimulus response to fungus detection of external biotic stimulus detection of biotic stimulus detection of stimulus response to chemical detection of chemical stimulus response to molecule of fungal origin detection of molecule of fungal origin regulation of defense response regulation of response to biotic stimulus regulation of response to external stimulus regulation of response to stress regulation of immune system process regulation of biological process regulation of innate immune response biological regulation regulation of response to stimulus regulation of immune response humoral immune response antimicrobial humoral response antifungal humoral response cellular response to stimulus positive regulation of response to biotic stimulus regulation of cellular process pattern recognition receptor signaling pathway signaling positive regulation of biological process cell communication positive regulation of response to stimulus immune response-activating signaling pathway positive regulation of response to external stimulus immune response-regulating signaling pathway positive regulation of immune response signal transduction positive regulation of immune system process innate immune response-activating signaling pathway positive regulation of innate immune response positive regulation of defense response activation of innate immune response cellular process activation of immune response carbohydrate metabolic process primary metabolic process metabolic process Toll receptor ligand protein activation cascade protein activation cascade cellular biosynthetic process cellular metabolic process gene expression macromolecule biosynthetic process protein maturation biosynthetic process protein metabolic process macromolecule metabolic process pigment metabolic process organic hydroxy compound metabolic process melanin metabolic process secondary metabolic process positive regulation of metabolic process melanization defense response positive regulation of melanization defense response regulation of secondary metabolic process regulation of melanization defense response phenol-containing compound metabolic process regulation of metabolic process	extracellular region cellular anatomical entity cell surface extracellular space

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR050546	Glycosyl Hydrolase Family 16	Family
A, B	IPR043030	Beta-1,3-glucan-binding protein, N-terminal domain superfamily	Homologous Superfamily
A, B	IPR013320	Concanavalin A-like lectin/glucanase domain superfamily	Homologous Superfamily
A, B	IPR035806	Beta-1,3-glucan recognition protein, C-terminal	Domain
A, B	IPR031756	Beta-1,3-glucan-binding protein, N-terminal	Domain
A, B	IPR000757	Glycoside hydrolase family 16	Domain

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.