3EKA

Crystal structure of the complex of hyaluranidase trimer with ascorbic acid at 3.1 A resolution reveals the locations of three binding sites

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
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)
A	d3ekaa2	All beta proteins	Triple-stranded beta-helix	Phage fibre proteins	HylP-like	Phage-associated hyaluronidase, HylP1	(Streptococcus pyogenes ) [TaxId: 1314 ],	SCOPe (2.08)
A	d3ekaa3	Artifacts	Tags	Tags	Tags	C-terminal Tags	(Streptococcus pyogenes ) [TaxId: 1314 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Phage fibre proteins	8033666	3000351	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)
A	Hyaluronidase_1	e3ekaA1	A: beta duplicates or obligate multimers	X: Phage tail fiber protein trimerization domain (From Topology)	H: Phage tail fiber protein trimerization domain (From Topology)	T: Phage tail fiber protein trimerization domain	F: Hyaluronidase_1	ECOD (1.6)
A	EUF07876	e3ekaA2	A: beta duplicates or obligate multimers	X: Major tropism determinant (Mtd) trimerization domain-related (From Topology)	H: Major tropism determinant (Mtd) trimerization domain-related (From Topology)	T: Major tropism determinant (Mtd) trimerization domain-related	F: EUF07876	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF18454	Major tropism determinant N-terminal domain (Mtd_N)	Major tropism determinant N-terminal domain	This is the N-terminal domain of major tropism determinant (Mtd), a retroelement-encoded receptor-binding protein. Mtd-N forms a three-fold symmetric beta-prism. This resembles the pseudo three-fold-symmetric beta-prisms of monocot lectins, but lacks ...	This is the N-terminal domain of major tropism determinant (Mtd), a retroelement-encoded receptor-binding protein. Mtd-N forms a three-fold symmetric beta-prism. This resembles the pseudo three-fold-symmetric beta-prisms of monocot lectins, but lacks residues in these lectins identified as binding carbohydrates. The beta-prism and beta-sandwich domains reinforce overall trimeric assembly and therefore may have indirect roles in stabilizing the backbone of the variable region [1].	Domain
A	PF07212	Hyaluronidase protein (HylP) (Hyaluronidase_1)	Hyaluronidase protein (HylP)	-	Repeat

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Hyaluronidase, phage associated	hyalurononglucosaminidase activity hydrolase activity, acting on glycosyl bonds hexosaminidase activity hydrolase activity, hydrolyzing O-glycosyl compounds hydrolase activity catalytic activity	carbohydrate metabolic process polysaccharide biosynthetic process carbohydrate biosynthetic process primary metabolic process macromolecule biosynthetic process cellular component organization capsule organization polysaccharide metabolic process biosynthetic process metabolic process cellular process macromolecule metabolic process cellular component organization or biogenesis capsule polysaccharide biosynthetic process carbohydrate metabolic process polysaccharide biosynthetic process carbohydrate biosynthetic process primary metabolic process macromolecule biosynthetic process cellular component organization capsule organization polysaccharide metabolic process biosynthetic process metabolic process cellular process macromolecule metabolic process cellular component organization or biogenesis capsule polysaccharide biosynthetic process external encapsulating structure organization	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR009860	Hyaluronidase, bacterial	Family
A	IPR041352	Major tropism determinant, N-terminal domain	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.