1KWS

CRYSTAL STRUCTURE OF BETA1,3-GLUCURONYLTRANSFERASE I IN COMPLEX WITH THE ACTIVE UDP-GLCUA DONOR

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations
Structure Motif: Primary M-CSA Annotation

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
B	d1kwsb1	Alpha and beta proteins (a/b)	Nucleotide-diphospho-sugar transferases	Nucleotide-diphospho-sugar transferases	1,3-glucuronyltransferase	1,3-Glucuronyltransferase I (glcAT-I)	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
B	d1kwsb2	Artifacts	Tags	Tags	Tags	N-terminal Tags	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
A	d1kwsa1	Alpha and beta proteins (a/b)	Nucleotide-diphospho-sugar transferases	Nucleotide-diphospho-sugar transferases	1,3-glucuronyltransferase	1,3-Glucuronyltransferase I (glcAT-I)	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
A	d1kwsa2	Artifacts	Tags	Tags	Tags	N-terminal Tags	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B	SCOP2B Superfamily	Nucleotide-diphospho-sugar transferases	8040311	3000077	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Nucleotide-diphospho-sugar transferases	8040311	3000077	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)
B	PF03360	e1kwsB1	A: a/b three-layered sandwiches	X: Nucleotide-diphospho-sugar transferases (From Topology)	H: Nucleotide-diphospho-sugar transferases (From Topology)	T: Nucleotide-diphospho-sugar transferases	F: PF03360	ECOD (1.6)
A	PF03360	e1kwsA1	A: a/b three-layered sandwiches	X: Nucleotide-diphospho-sugar transferases (From Topology)	H: Nucleotide-diphospho-sugar transferases (From Topology)	T: Nucleotide-diphospho-sugar transferases	F: PF03360	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	3.90.550.10	Alpha Beta	Alpha-Beta Complex	Spore Coat Polysaccharide Biosynthesis Protein SpsA	Chain A	CATH (4.3.0)
A	3.90.550.10	Alpha Beta	Alpha-Beta Complex	Spore Coat Polysaccharide Biosynthesis Protein SpsA	Chain A	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF03360	Glycosyltransferase family 43 (Glyco_transf_43)	Glycosyltransferase family 43	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	BETA-1,3-GLUCURONYLTRANSFERASE 3	UDP-glycosyltransferase activity glycosyltransferase activity glucuronosyltransferase activity transferase activity galactosylgalactosylxylosylprotein 3-beta-glucuronosyltransferase activity hexosyltransferase activity catalytic activity enzyme regulator activity protein phosphatase activator activity enzyme activator activity phosphatase activator activity molecular function activator activity phosphatase regulator activity molecular function regulator activity UDP-glycosyltransferase activity glycosyltransferase activity glucuronosyltransferase activity transferase activity galactosylgalactosylxylosylprotein 3-beta-glucuronosyltransferase activity hexosyltransferase activity catalytic activity enzyme regulator activity protein phosphatase activator activity enzyme activator activity phosphatase activator activity molecular function activator activity phosphatase regulator activity molecular function regulator activity protein phosphatase regulator activity cation binding ion binding binding metal ion binding small molecule binding	carbohydrate derivative biosynthetic process organonitrogen compound metabolic process cellular biosynthetic process cellular metabolic process organonitrogen compound biosynthetic process glycoprotein biosynthetic process carbohydrate derivative metabolic process primary metabolic process glycoprotein metabolic process protein glycosylation macromolecule biosynthetic process organic substance metabolic process biosynthetic process glycosylation macromolecule modification carbohydrate derivative biosynthetic process organonitrogen compound metabolic process cellular biosynthetic process cellular metabolic process organonitrogen compound biosynthetic process glycoprotein biosynthetic process carbohydrate derivative metabolic process primary metabolic process glycoprotein metabolic process protein glycosylation macromolecule biosynthetic process organic substance metabolic process biosynthetic process glycosylation macromolecule modification macromolecule glycosylation organic substance biosynthetic process metabolic process cellular process protein metabolic process macromolecule metabolic process protein modification process dermatan sulfate proteoglycan metabolic process proteoglycan biosynthetic process dermatan sulfate proteoglycan biosynthetic process proteoglycan metabolic process glycosaminoglycan metabolic process aminoglycan metabolic process aminoglycan biosynthetic process glycosaminoglycan biosynthetic process carbohydrate metabolic process chondroitin sulfate proteoglycan metabolic process chondroitin sulfate proteoglycan biosynthetic process positive regulation of molecular function regulation of molecular function regulation of catalytic activity biological regulation positive regulation of catalytic activity heparan sulfate proteoglycan biosynthetic process sulfur compound biosynthetic process sulfur compound metabolic process protein localization regulation of localization establishment of protein localization cellular localization nitrogen compound transport regulation of cellular process regulation of protein localization transport positive regulation of biological process positive regulation of establishment of protein localization positive regulation of protein transport localization cellular macromolecule localization establishment of localization in cell positive regulation of intracellular transport positive regulation of cellular process regulation of intracellular transport regulation of biological process regulation of transport organic substance transport regulation of establishment of protein localization intracellular transport regulation of protein transport establishment of localization positive regulation of transport protein transport regulation of cellular localization macromolecule localization positive regulation of protein localization regulation of intracellular protein transport positive regulation of intracellular protein transport intracellular protein transport	membrane-bounded organelle intracellular organelle intracellular anatomical structure Golgi apparatus cis-Golgi network organelle intracellular membrane-bounded organelle cellular anatomical entity cytoplasm endomembrane system membrane Golgi membrane bounding membrane of organelle organelle membrane membrane-bounded organelle intracellular organelle intracellular anatomical structure Golgi apparatus cis-Golgi network organelle intracellular membrane-bounded organelle cellular anatomical entity cytoplasm endomembrane system membrane Golgi membrane bounding membrane of organelle organelle membrane extracellular exosome extracellular vesicle extracellular organelle extracellular region extracellular space vesicle extracellular membrane-bounded organelle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR005027	Glycosyl transferase, family 43	Family
A, B	IPR029044	Nucleotide-diphospho-sugar transferases	Homologous Superfamily

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B	Pharos: O94766	Larsen-like syndrome, B3GAT3 type Craniofacial Abnormalities congenital disorder of glycosylation psoriasis osteogenesis imperfecta thoracic aortic aneurysm osteosarcoma

Structure Motif Annotation: Mechanism and Catalytic Site Atlas M-CSA Database Homepage

Chains	Enzyme Name	Description	Catalytic Residues
A	galactosylgalactosylxylosylprotein 3-beta-glucuronosyltransferase M-CSA #801	Beta-1,3-glucuronyltransferase (GlcAT-I) is involved in the biosynthesis of heparin sulphate and chondroitin sulphate. It catalyses the transfer of glucuronic acid (GlcUA) from UDP-GlcUA onto the terminal galactose of the linker Gal-Gal-Xyl- that is attached to a serine side chain of a core protein. GlcAT-I is an inverting glycosyltransferse, converting the alpha linkage in the UDP-GlcUA molecule to a beta linkage in the product.	Defined by 2 residues: ASP:A-122 [auth A-196]GLU:A-207 [auth A-281] \| Explore in 3D: M-CSA Motif Definition Search M-CSA Motif

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 R01GM133198.