Annotations: 8PE2

Crystal structure of Gel4 in complex with Nanobody 3

External Resource: Annotation

Domain Annotation: ECOD Classification
SAbDab Antibody Annotation
Protein Family 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)
A	REC lobe of CRISPR-associated endonuclease Cas9 / Bridge helix of CRISPR-associated endonuclease Cas9	e8pe2A01	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: REC lobe of CRISPR-associated endonuclease Cas9 / Bridge helix of CRISPR-associated endonuclease Cas9	ECOD (v295.2)
B	REC lobe of CRISPR-associated endonuclease Cas9 / Bridge helix of CRISPR-associated endonuclease Cas9	e8pe2B01	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: REC lobe of CRISPR-associated endonuclease Cas9 / Bridge helix of CRISPR-associated endonuclease Cas9	ECOD (v295.2)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
B	Heavy Chain	IGHV1	-	1,3-beta-glucanosyltransferase	SAbDab (2026-09-11)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF07983	X8 domain (X8)	X8 domain	The X8 domain [2] domain contains at least 6 conserved cysteine residues that presumably form three disulphide bridges. The domain is found in an Olive pollen allergen [1] as well as at the C-terminus of several families of glycosyl hydrolases [2]. T ...	The X8 domain [2] domain contains at least 6 conserved cysteine residues that presumably form three disulphide bridges. The domain is found in an Olive pollen allergen [1] as well as at the C-terminus of several families of glycosyl hydrolases [2]. This domain may be involved in carbohydrate binding. This domain is characteristic of GPI-anchored domains [4,5].	Domain
A	PF03198	Glucanosyltransferase (Glyco_hydro_72)	Glucanosyltransferase	This is a family of glycosylphosphatidylinositol-anchored beta(1-3)glucanosyltransferases. The active site residues in the Aspergillus fumigatus example Swiss:B0XT72 are the two glutamate residues at 160 and 261 [3].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	1,3-beta-glucanosyltransferase	glucanosyltransferase activity transferase activity 1,3-beta-glucanosyltransferase activity catalytic activity	fungal-type cell wall organization cellular component organization fungal-type cell wall organization or biogenesis cell wall organization or biogenesis cell wall organization cellular process cellular component organization or biogenesis external encapsulating structure organization fungal-type cell wall beta-glucan metabolic process fungal-type cell wall polysaccharide biosynthetic process glucan biosynthetic process cell wall beta-glucan metabolic process (1->3)-beta-D-glucan metabolic process cellular component biogenesis fungal-type cell wall organization cellular component organization fungal-type cell wall organization or biogenesis cell wall organization or biogenesis cell wall organization cellular process cellular component organization or biogenesis external encapsulating structure organization fungal-type cell wall beta-glucan metabolic process fungal-type cell wall polysaccharide biosynthetic process glucan biosynthetic process cell wall beta-glucan metabolic process (1->3)-beta-D-glucan metabolic process cellular component biogenesis fungal-type cell wall beta-glucan biosynthetic process beta-glucan biosynthetic process glucan metabolic process polysaccharide metabolic process fungal-type cell wall (1->3)-beta-D-glucan biosynthetic process cell wall (1->3)-beta-D-glucan metabolic process cell wall polysaccharide metabolic process carbohydrate metabolic process beta-glucan metabolic process polysaccharide biosynthetic process carbohydrate biosynthetic process primary metabolic process (1->3)-beta-D-glucan biosynthetic process macromolecule biosynthetic process cell wall beta-glucan biosynthetic process cell wall biogenesis biosynthetic process cell wall macromolecule biosynthetic process fungal-type cell wall (1->3)-beta-D-glucan metabolic process cell wall polysaccharide biosynthetic process metabolic process cell wall (1->3)-beta-D-glucan biosynthetic process macromolecule metabolic process fungal-type cell wall biogenesis fungal-type cell wall polysaccharide metabolic process cell wall macromolecule metabolic process	cell periphery cellular anatomical structure plasma membrane membrane fungal-type cell wall external encapsulating structure extracellular region cell wall membrane-bounded organelle organelle vesicle
B	Nanobody 3	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR004886	Glucanosyltransferase	Family
A	IPR017853	Glycoside hydrolase superfamily	Homologous Superfamily
A	IPR012946	X8 domain	Domain

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