Annotations: 4FDI

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Sulfatase	e4fdiA1	A: a/b three-layered sandwiches	X: Alkaline phosphatase-like (From Topology)	H: Alkaline phosphatase-like (From Topology)	T: Alkaline phosphatase-like	F: Sulfatase	ECOD (1.6)
B	Sulfatase	e4fdiB1	A: a/b three-layered sandwiches	X: Alkaline phosphatase-like (From Topology)	H: Alkaline phosphatase-like (From Topology)	T: Alkaline phosphatase-like	F: Sulfatase	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.40.720.10	Alpha Beta	3-Layer(aba) Sandwich	Alkaline Phosphatase, subunit A	Alkaline Phosphatase, subunit A	CATH (4.3.0)
A	3.30.1120.10	Alpha Beta	2-Layer Sandwich	Arylsulfatase, C-terminal domain		CATH (4.3.0)
B	3.40.720.10	Alpha Beta	3-Layer(aba) Sandwich	Alkaline Phosphatase, subunit A	Alkaline Phosphatase, subunit A	CATH (4.3.0)
B	3.30.1120.10	Alpha Beta	2-Layer Sandwich	Arylsulfatase, C-terminal domain		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF14707	C-terminal region of aryl-sulfatase (Sulfatase_C)	C-terminal region of aryl-sulfatase	-	Domain
A, B	PF00884	Sulfatase (Sulfatase)	Sulfatase	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	N-acetylgalactosamine-6-sulfatase	N-acetylgalactosamine-4-sulfatase activity hydrolase activity, acting on ester bonds hydrolase activity catalytic activity sulfuric ester hydrolase activity arylsulfatase activity N-acetylgalactosamine-6-sulfatase activity cation binding ion binding binding metal ion binding small molecule binding	-	extracellular region cellular anatomical entity membrane-bounded organelle intracellular anatomical structure lytic vacuole membrane-enclosed lumen vacuolar lumen vacuole intracellular membrane-bounded organelle lysosomal lumen intracellular organelle lumen intracellular organelle organelle lumen organelle extracellular region cellular anatomical entity membrane-bounded organelle intracellular anatomical structure lytic vacuole membrane-enclosed lumen vacuolar lumen vacuole intracellular membrane-bounded organelle lysosomal lumen intracellular organelle lumen intracellular organelle organelle lumen organelle cytoplasm lysosome extracellular exosome extracellular vesicle extracellular organelle extracellular space vesicle extracellular membrane-bounded organelle intracellular vesicle cytoplasmic vesicle lumen endomembrane system cytoplasmic vesicle vesicle lumen azurophil granule secretory granule lumen azurophil granule lumen secretory granule primary lysosome secretory vesicle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR035626	N-acetylgalactosamine-6-sulfatase	Family
A, B	IPR024607	Sulfatase, conserved site	Conserved Site
A, B	IPR000917	Sulfatase, N-terminal	Domain
A, B	IPR017850	Alkaline-phosphatase-like, core domain superfamily	Homologous Superfamily

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B	Pharos: P34059	mucopolysaccharidosis type 4 mucopolysaccharidosis type 4A mucopolysaccharidosis mucopolysaccharidosis type 4B Inflammation colorectal cancer intellectual disability osteosarcoma inborn errors of metabolism lysosomal storage disease psoriasis hydrops fetalis malignant ependymoma osteochondrodysplasia tuberculosis

Protein Modification Annotation

Modified Residue(s)
Chain	Residue(s)	Description
A, B	DDZ	Parent Component: ALA RESID: AA0492 PSI-MOD : L-3,3-dihydroxyoalanine (Cys) MOD:01444 , L-3,3-dihydroxyoalanine (Ser) MOD:01445 , L-3,3-dihydroxyoalanine MOD:01448

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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 R01GM133198.