Annotations: 9JUB

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
B	Heavy Chain	IGHV1	-	hyaluronidase ph-20	SAbDab (2025-12-19)
C	Light Chain	IGKV1	Kappa	hyaluronidase ph-20	SAbDab (2025-12-19)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF01630	Hyaluronidase (Glyco_hydro_56)	Hyaluronidase		Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Hyaluronidase PH-20	hyalurononglucosaminidase activity hydrolase activity, acting on glycosyl bonds hexosaminidase activity hydrolase activity, hydrolyzing O-glycosyl compounds hydrolase activity catalytic activity	membrane organization sexual reproduction membrane fusion reproductive process plasma membrane fusion fertilization multicellular organismal reproductive process cellular process involved in reproduction in multicellular organism cellular component organization fusion of sperm to egg plasma membrane involved in single fertilization plasma membrane organization cellular process cellular component organization or biogenesis endomembrane system organization membrane organization sexual reproduction membrane fusion reproductive process plasma membrane fusion fertilization multicellular organismal reproductive process cellular process involved in reproduction in multicellular organism cellular component organization fusion of sperm to egg plasma membrane involved in single fertilization plasma membrane organization cellular process cellular component organization or biogenesis endomembrane system organization single fertilization carbohydrate metabolic process primary metabolic process metabolic process cell adhesion sperm-egg recognition cell-cell recognition binding of sperm to zona pellucida cell recognition carbohydrate derivative catabolic process catabolic process hyaluronan catabolic process glycosaminoglycan metabolic process carbohydrate derivative metabolic process aminoglycan catabolic process macromolecule catabolic process glycosaminoglycan catabolic process hyaluronan metabolic process aminoglycan metabolic process macromolecule metabolic process	cellular anatomical structure membrane side of membrane cell periphery plasma membrane acrosomal vesicle membrane-bounded organelle intracellular anatomical structure intracellular vesicle intracellular membrane-bounded organelle endomembrane system intracellular organelle cytoplasmic vesicle organelle cellular anatomical structure membrane side of membrane cell periphery plasma membrane acrosomal vesicle membrane-bounded organelle intracellular anatomical structure intracellular vesicle intracellular membrane-bounded organelle endomembrane system intracellular organelle cytoplasmic vesicle organelle secretory granule secretory vesicle cytoplasm vesicle
B	Heavy chain of 79C11Fab	-	-	-
C	Light chain of 79C11Fab	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR018155	Hyaluronidase	Family
A	IPR001439	Hyaluronidase PH20/Hyaluronidase-5	Family
A	IPR017853	Glycoside hydrolase superfamily	Homologous Superfamily
A	IPR013785	Aldolase-type TIM barrel	Homologous Superfamily

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.