Annotations: 2Q1F

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Lyase_N	e2q1fA3	A: beta sandwiches	X: jelly-roll	H: Concanavalin A-like	T: Galactose-binding domain-like	F: Lyase_N	ECOD (1.6)
A	Lyase_8_C_1	e2q1fA4	A: beta sandwiches	X: Glycosyl hydrolase domain-like	H: Hyaluronate lyase-like, C-terminal domain (From Topology)	T: Hyaluronate lyase-like, C-terminal domain	F: Lyase_8_C_1	ECOD (1.6)
A	Lyase_8	e2q1fA1	A: beta sandwiches	X: Glycosyl hydrolase domain-like	H: supersandwich (From Topology)	T: supersandwich	F: Lyase_8	ECOD (1.6)
A	Lyase_catalyt	e2q1fA2	A: alpha superhelices	X: Repetitive alpha hairpins	H: alpha/alpha toroid (From Topology)	T: alpha/alpha toroid	F: Lyase_catalyt	ECOD (1.6)
B	Lyase_N	e2q1fB7	A: beta sandwiches	X: jelly-roll	H: Concanavalin A-like	T: Galactose-binding domain-like	F: Lyase_N	ECOD (1.6)
B	Lyase_8_C_1	e2q1fB8	A: beta sandwiches	X: Glycosyl hydrolase domain-like	H: Hyaluronate lyase-like, C-terminal domain (From Topology)	T: Hyaluronate lyase-like, C-terminal domain	F: Lyase_8_C_1	ECOD (1.6)
B	Lyase_8	e2q1fB6	A: beta sandwiches	X: Glycosyl hydrolase domain-like	H: supersandwich (From Topology)	T: supersandwich	F: Lyase_8	ECOD (1.6)
B	Lyase_catalyt	e2q1fB5	A: alpha superhelices	X: Repetitive alpha hairpins	H: alpha/alpha toroid (From Topology)	T: alpha/alpha toroid	F: Lyase_catalyt	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.60.120.430	Mainly Beta	Sandwich	Jelly Rolls	Galactose-binding lectin	CATH (4.3.0)
A	1.50.10.100	Mainly Alpha	Alpha/alpha barrel	Glycosyltransferase	Chondroitin AC/alginate lyase	CATH (4.3.0)
A	2.70.98.10	Mainly Beta	Distorted Sandwich	Beta-galactosidase	Chain A, domain 5	CATH (4.3.0)
A	2.60.220.10	Mainly Beta	Sandwich	Chondroitinase Ac	Chain A, domain 3	CATH (4.3.0)
B	2.60.120.430	Mainly Beta	Sandwich	Jelly Rolls	Galactose-binding lectin	CATH (4.3.0)
B	1.50.10.100	Mainly Alpha	Alpha/alpha barrel	Glycosyltransferase	Chondroitin AC/alginate lyase	CATH (4.3.0)
B	2.70.98.10	Mainly Beta	Distorted Sandwich	Beta-galactosidase	Chain A, domain 5	CATH (4.3.0)
B	2.60.220.10	Mainly Beta	Sandwich	Chondroitinase Ac	Chain A, domain 3	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF02278	Polysaccharide lyase family 8, super-sandwich domain (Lyase_8)	Polysaccharide lyase family 8, super-sandwich domain	-	Family
A, B	PF09092	Lyase, N terminal (Lyase_N)	Lyase, N terminal	Members of this family are predominantly found in chondroitin ABC lyase I, and adopt a jelly-roll fold topology consisting of a two-layered bent beta-sheet sandwich with one short alpha-helix. The convex beta sheet is composed of five antiparallel st ...	Members of this family are predominantly found in chondroitin ABC lyase I, and adopt a jelly-roll fold topology consisting of a two-layered bent beta-sheet sandwich with one short alpha-helix. The convex beta sheet is composed of five antiparallel strands, whilst the concave beta-sheet contains five antiparallel beta-strands with a loop between two consecutive strands folding back onto the concave surface. This domain is required for binding of the protein to long glycosaminoglycan chains [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Chondroitinase	binding carbohydrate binding cation binding magnesium ion binding ion binding metal ion binding small molecule binding calcium ion binding lyase activity carbon-oxygen lyase activity, acting on polysaccharides catalytic activity carbon-oxygen lyase activity chondroitin-sulfate-ABC endolyase activity chondroitin-sulfate-ABC exolyase activity	organonitrogen compound catabolic process carbohydrate derivative catabolic process catabolic process organonitrogen compound metabolic process glycosaminoglycan metabolic process carbohydrate derivative metabolic process aminoglycan catabolic process macromolecule catabolic process glycosaminoglycan catabolic process organic substance metabolic process aminoglycan metabolic process metabolic process macromolecule metabolic process organic substance catabolic process organonitrogen compound catabolic process carbohydrate derivative catabolic process catabolic process organonitrogen compound metabolic process glycosaminoglycan metabolic process carbohydrate derivative metabolic process aminoglycan catabolic process macromolecule catabolic process glycosaminoglycan catabolic process organic substance metabolic process aminoglycan metabolic process metabolic process macromolecule metabolic process organic substance catabolic process mucopolysaccharide metabolic process dermatan sulfate proteoglycan metabolic process oxoacid metabolic process organic acid metabolic process organic acid catabolic process cellular catabolic process monocarboxylic acid catabolic process carboxylic acid catabolic process sulfur compound metabolic process small molecule metabolic process protein metabolic process cellular metabolic process carboxylic acid metabolic process primary metabolic process glycoprotein metabolic process dermatan sulfate catabolic process sulfur compound catabolic process dermatan sulfate metabolic process cellular process monocarboxylic acid metabolic process proteoglycan metabolic process small molecule catabolic process	extracellular region cellular anatomical entity periplasmic space

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR039174	Chondroitin sulfate ABC lyase	Family
A, B	IPR011071	Polysaccharide lyase family 8-like, C-terminal	Homologous Superfamily
A, B	IPR024200	Chondroitin sulfate ABC endolyase	Family
A, B	IPR008979	Galactose-binding-like domain superfamily	Homologous Superfamily
A, B	IPR015177	Lyase, catalytic	Domain
A, B	IPR003159	Polysaccharide lyase family 8, central domain	Domain
A, B	IPR008929	Chondroitin AC/alginate lyase	Homologous Superfamily
A, B	IPR014718	Glycoside hydrolase-type carbohydrate-binding	Homologous Superfamily
A, B	IPR015176	Lyase, N-terminal	Domain
A, B	IPR011013	Galactose mutarotase-like domain superfamily	Homologous Superfamily

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.