1DWK

STRUCTURE OF CYANASE WITH THE DI-ANION OXALATE BOUND AT THE ENZYME ACTIVE SITE

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

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1dwka1	All alpha proteins	lambda repressor-like DNA-binding domains	lambda repressor-like DNA-binding domains	Cyanase N-terminal domain	Cyanase N-terminal domain	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)
A	d1dwka2	Alpha and beta proteins (a+b)	Cyanase C-terminal domain	Cyanase C-terminal domain	Cyanase C-terminal domain	Cyanase C-terminal domain	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)
B	d1dwkb1	All alpha proteins	lambda repressor-like DNA-binding domains	lambda repressor-like DNA-binding domains	Cyanase N-terminal domain	Cyanase N-terminal domain	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)
B	d1dwkb2	Alpha and beta proteins (a+b)	Cyanase C-terminal domain	Cyanase C-terminal domain	Cyanase C-terminal domain	Cyanase C-terminal domain	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)
C	d1dwkc1	All alpha proteins	lambda repressor-like DNA-binding domains	lambda repressor-like DNA-binding domains	Cyanase N-terminal domain	Cyanase N-terminal domain	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)
C	d1dwkc2	Alpha and beta proteins (a+b)	Cyanase C-terminal domain	Cyanase C-terminal domain	Cyanase C-terminal domain	Cyanase C-terminal domain	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)
D	d1dwkd1	All alpha proteins	lambda repressor-like DNA-binding domains	lambda repressor-like DNA-binding domains	Cyanase N-terminal domain	Cyanase N-terminal domain	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)
D	d1dwkd2	Alpha and beta proteins (a+b)	Cyanase C-terminal domain	Cyanase C-terminal domain	Cyanase C-terminal domain	Cyanase C-terminal domain	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)
E	d1dwke1	All alpha proteins	lambda repressor-like DNA-binding domains	lambda repressor-like DNA-binding domains	Cyanase N-terminal domain	Cyanase N-terminal domain	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)
E	d1dwke2	Alpha and beta proteins (a+b)	Cyanase C-terminal domain	Cyanase C-terminal domain	Cyanase C-terminal domain	Cyanase C-terminal domain	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)
F	d1dwkf1	All alpha proteins	lambda repressor-like DNA-binding domains	lambda repressor-like DNA-binding domains	Cyanase N-terminal domain	Cyanase N-terminal domain	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)
F	d1dwkf2	Alpha and beta proteins (a+b)	Cyanase C-terminal domain	Cyanase C-terminal domain	Cyanase C-terminal domain	Cyanase C-terminal domain	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)
G	d1dwkg1	All alpha proteins	lambda repressor-like DNA-binding domains	lambda repressor-like DNA-binding domains	Cyanase N-terminal domain	Cyanase N-terminal domain	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)
G	d1dwkg2	Alpha and beta proteins (a+b)	Cyanase C-terminal domain	Cyanase C-terminal domain	Cyanase C-terminal domain	Cyanase C-terminal domain	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)
H	d1dwkh1	All alpha proteins	lambda repressor-like DNA-binding domains	lambda repressor-like DNA-binding domains	Cyanase N-terminal domain	Cyanase N-terminal domain	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)
H	d1dwkh2	Alpha and beta proteins (a+b)	Cyanase C-terminal domain	Cyanase C-terminal domain	Cyanase C-terminal domain	Cyanase C-terminal domain	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)
I	d1dwki1	All alpha proteins	lambda repressor-like DNA-binding domains	lambda repressor-like DNA-binding domains	Cyanase N-terminal domain	Cyanase N-terminal domain	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)
I	d1dwki2	Alpha and beta proteins (a+b)	Cyanase C-terminal domain	Cyanase C-terminal domain	Cyanase C-terminal domain	Cyanase C-terminal domain	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)
J	d1dwkj1	All alpha proteins	lambda repressor-like DNA-binding domains	lambda repressor-like DNA-binding domains	Cyanase N-terminal domain	Cyanase N-terminal domain	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)
J	d1dwkj2	Alpha and beta proteins (a+b)	Cyanase C-terminal domain	Cyanase C-terminal domain	Cyanase C-terminal domain	Cyanase C-terminal domain	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	Cyanase N-terminal domain	8024820	4000898	SCOP2 (2022-06-29)
A	SCOP2 Family	Cyanase C-terminal domain	8023412	4001450	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	lambda C1 repressor DNA-binding domain-like	8037199	3000119	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Cyanase C-terminal domain	8035792	3001610	SCOP2 (2022-06-29)
B	SCOP2B Superfamily	Cyanase C-terminal domain	8035792	3001610	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	lambda C1 repressor DNA-binding domain-like	8037199	3000119	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	Cyanase C-terminal domain	8035792	3001610	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	lambda C1 repressor DNA-binding domain-like	8037199	3000119	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	Cyanase C-terminal domain	8035792	3001610	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	lambda C1 repressor DNA-binding domain-like	8037199	3000119	SCOP2B (2022-06-29)
E	SCOP2B Superfamily	lambda C1 repressor DNA-binding domain-like	8037199	3000119	SCOP2B (2022-06-29)
E	SCOP2B Superfamily	Cyanase C-terminal domain	8035792	3001610	SCOP2B (2022-06-29)
F	SCOP2B Superfamily	Cyanase C-terminal domain	8035792	3001610	SCOP2B (2022-06-29)
F	SCOP2B Superfamily	lambda C1 repressor DNA-binding domain-like	8037199	3000119	SCOP2B (2022-06-29)
G	SCOP2B Superfamily	lambda C1 repressor DNA-binding domain-like	8037199	3000119	SCOP2B (2022-06-29)
G	SCOP2B Superfamily	Cyanase C-terminal domain	8035792	3001610	SCOP2B (2022-06-29)
H	SCOP2B Superfamily	lambda C1 repressor DNA-binding domain-like	8037199	3000119	SCOP2B (2022-06-29)
H	SCOP2B Superfamily	Cyanase C-terminal domain	8035792	3001610	SCOP2B (2022-06-29)
I	SCOP2B Superfamily	Cyanase C-terminal domain	8035792	3001610	SCOP2B (2022-06-29)
I	SCOP2B Superfamily	lambda C1 repressor DNA-binding domain-like	8037199	3000119	SCOP2B (2022-06-29)
J	SCOP2B Superfamily	lambda C1 repressor DNA-binding domain-like	8037199	3000119	SCOP2B (2022-06-29)
J	SCOP2B Superfamily	Cyanase C-terminal domain	8035792	3001610	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	PF21291	e1dwkA1	A: alpha arrays	X: HTH	H: HTH	T: tetra-helical, lambda repressor-like	F: PF21291	ECOD (1.6)
A	PF02560	e1dwkA2	A: a+b duplicates or obligate multimers	X: MinE-like	H: Cyanase C-terminal domain (From Topology)	T: Cyanase C-terminal domain	F: PF02560	ECOD (1.6)
B	PF21291	e1dwkB1	A: alpha arrays	X: HTH	H: HTH	T: tetra-helical, lambda repressor-like	F: PF21291	ECOD (1.6)
B	PF02560	e1dwkB2	A: a+b duplicates or obligate multimers	X: MinE-like	H: Cyanase C-terminal domain (From Topology)	T: Cyanase C-terminal domain	F: PF02560	ECOD (1.6)
C	PF21291	e1dwkC1	A: alpha arrays	X: HTH	H: HTH	T: tetra-helical, lambda repressor-like	F: PF21291	ECOD (1.6)
C	PF02560	e1dwkC2	A: a+b duplicates or obligate multimers	X: MinE-like	H: Cyanase C-terminal domain (From Topology)	T: Cyanase C-terminal domain	F: PF02560	ECOD (1.6)
D	PF21291	e1dwkD1	A: alpha arrays	X: HTH	H: HTH	T: tetra-helical, lambda repressor-like	F: PF21291	ECOD (1.6)
D	PF02560	e1dwkD2	A: a+b duplicates or obligate multimers	X: MinE-like	H: Cyanase C-terminal domain (From Topology)	T: Cyanase C-terminal domain	F: PF02560	ECOD (1.6)
E	PF21291	e1dwkE1	A: alpha arrays	X: HTH	H: HTH	T: tetra-helical, lambda repressor-like	F: PF21291	ECOD (1.6)
E	PF02560	e1dwkE2	A: a+b duplicates or obligate multimers	X: MinE-like	H: Cyanase C-terminal domain (From Topology)	T: Cyanase C-terminal domain	F: PF02560	ECOD (1.6)
F	PF21291	e1dwkF1	A: alpha arrays	X: HTH	H: HTH	T: tetra-helical, lambda repressor-like	F: PF21291	ECOD (1.6)
F	PF02560	e1dwkF2	A: a+b duplicates or obligate multimers	X: MinE-like	H: Cyanase C-terminal domain (From Topology)	T: Cyanase C-terminal domain	F: PF02560	ECOD (1.6)
G	PF21291	e1dwkG1	A: alpha arrays	X: HTH	H: HTH	T: tetra-helical, lambda repressor-like	F: PF21291	ECOD (1.6)
G	PF02560	e1dwkG2	A: a+b duplicates or obligate multimers	X: MinE-like	H: Cyanase C-terminal domain (From Topology)	T: Cyanase C-terminal domain	F: PF02560	ECOD (1.6)
H	PF21291	e1dwkH1	A: alpha arrays	X: HTH	H: HTH	T: tetra-helical, lambda repressor-like	F: PF21291	ECOD (1.6)
H	PF02560	e1dwkH2	A: a+b duplicates or obligate multimers	X: MinE-like	H: Cyanase C-terminal domain (From Topology)	T: Cyanase C-terminal domain	F: PF02560	ECOD (1.6)
I	PF21291	e1dwkI1	A: alpha arrays	X: HTH	H: HTH	T: tetra-helical, lambda repressor-like	F: PF21291	ECOD (1.6)
I	PF02560	e1dwkI2	A: a+b duplicates or obligate multimers	X: MinE-like	H: Cyanase C-terminal domain (From Topology)	T: Cyanase C-terminal domain	F: PF02560	ECOD (1.6)
J	PF21291	e1dwkJ1	A: alpha arrays	X: HTH	H: HTH	T: tetra-helical, lambda repressor-like	F: PF21291	ECOD (1.6)
J	PF02560	e1dwkJ2	A: a+b duplicates or obligate multimers	X: MinE-like	H: Cyanase C-terminal domain (From Topology)	T: Cyanase C-terminal domain	F: PF02560	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.10.260.40	Mainly Alpha	Orthogonal Bundle	434 Repressor (Amino-terminal Domain)	lambda repressor-like DNA-binding domains	CATH (4.3.0)
A	3.30.1160.10	Alpha Beta	2-Layer Sandwich	Cyanate Lyase	Chain: A, domain 2	CATH (4.3.0)
B	1.10.260.40	Mainly Alpha	Orthogonal Bundle	434 Repressor (Amino-terminal Domain)	lambda repressor-like DNA-binding domains	CATH (4.3.0)
B	3.30.1160.10	Alpha Beta	2-Layer Sandwich	Cyanate Lyase	Chain: A, domain 2	CATH (4.3.0)
C	1.10.260.40	Mainly Alpha	Orthogonal Bundle	434 Repressor (Amino-terminal Domain)	lambda repressor-like DNA-binding domains	CATH (4.3.0)
C	3.30.1160.10	Alpha Beta	2-Layer Sandwich	Cyanate Lyase	Chain: A, domain 2	CATH (4.3.0)
D	1.10.260.40	Mainly Alpha	Orthogonal Bundle	434 Repressor (Amino-terminal Domain)	lambda repressor-like DNA-binding domains	CATH (4.3.0)
D	3.30.1160.10	Alpha Beta	2-Layer Sandwich	Cyanate Lyase	Chain: A, domain 2	CATH (4.3.0)
E	1.10.260.40	Mainly Alpha	Orthogonal Bundle	434 Repressor (Amino-terminal Domain)	lambda repressor-like DNA-binding domains	CATH (4.3.0)
E	3.30.1160.10	Alpha Beta	2-Layer Sandwich	Cyanate Lyase	Chain: A, domain 2	CATH (4.3.0)
F	1.10.260.40	Mainly Alpha	Orthogonal Bundle	434 Repressor (Amino-terminal Domain)	lambda repressor-like DNA-binding domains	CATH (4.3.0)
F	3.30.1160.10	Alpha Beta	2-Layer Sandwich	Cyanate Lyase	Chain: A, domain 2	CATH (4.3.0)
G	1.10.260.40	Mainly Alpha	Orthogonal Bundle	434 Repressor (Amino-terminal Domain)	lambda repressor-like DNA-binding domains	CATH (4.3.0)
G	3.30.1160.10	Alpha Beta	2-Layer Sandwich	Cyanate Lyase	Chain: A, domain 2	CATH (4.3.0)
H	1.10.260.40	Mainly Alpha	Orthogonal Bundle	434 Repressor (Amino-terminal Domain)	lambda repressor-like DNA-binding domains	CATH (4.3.0)
H	3.30.1160.10	Alpha Beta	2-Layer Sandwich	Cyanate Lyase	Chain: A, domain 2	CATH (4.3.0)
I	1.10.260.40	Mainly Alpha	Orthogonal Bundle	434 Repressor (Amino-terminal Domain)	lambda repressor-like DNA-binding domains	CATH (4.3.0)
I	3.30.1160.10	Alpha Beta	2-Layer Sandwich	Cyanate Lyase	Chain: A, domain 2	CATH (4.3.0)
J	1.10.260.40	Mainly Alpha	Orthogonal Bundle	434 Repressor (Amino-terminal Domain)	lambda repressor-like DNA-binding domains	CATH (4.3.0)
J	3.30.1160.10	Alpha Beta	2-Layer Sandwich	Cyanate Lyase	Chain: A, domain 2	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D, E A, B, C, D, E, F, G, H, I, J	PF02560	Cyanate lyase C-terminal domain (Cyanate_lyase)	Cyanate lyase C-terminal domain	Cyanate lyase (also known as cyanase) EC:4.2.1.104 is responsible for the hydrolysis of cyanate, allowing organisms that possess the enzyme to overcome the toxicity of environmental cyanate. This enzyme is composed of two domains, an N-terminal helix ...	Cyanate lyase (also known as cyanase) EC:4.2.1.104 is responsible for the hydrolysis of cyanate, allowing organisms that possess the enzyme to overcome the toxicity of environmental cyanate. This enzyme is composed of two domains, an N-terminal helix-turn-helix and this structurally unique C-terminal domain [2].	Domain
A, B, C, D, E A, B, C, D, E, F, G, H, I, J	PF21291	Cyanate hydratase, N-terminal (CYNS_N)	Cyanate hydratase, N-terminal	Cyanate hydratase (also known as cyanate lyase) catalyses the reaction of cyanate with bicarbonate to produce ammonia and carbon dioxide, allowing the host organisms to overcome the toxicity of environmental cyanate [1-4]. It consists of an N-termin ...	Cyanate hydratase (also known as cyanate lyase) catalyses the reaction of cyanate with bicarbonate to produce ammonia and carbon dioxide, allowing the host organisms to overcome the toxicity of environmental cyanate [1-4]. It consists of an N-terminal five-helix bundle domain that shows structural similarity to DNA-binding HTH domains and a C-terminal catalytic domain, which has a unique fold [4].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D, E A, B, C, D, E, F, G, H, I, J	CYANATE HYDRATASE	DNA binding binding organic cyclic compound binding nucleic acid binding lyase activity cyanate hydratase activity catalytic activity carbon-nitrogen lyase activity	organonitrogen compound catabolic process organonitrogen compound metabolic process catabolic process cellular metabolic process cyanate metabolic process organic acid metabolic process organic substance metabolic process metabolic process small molecule metabolic process cellular process cyanate catabolic process organic substance catabolic process	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D, E A, B, C, D, E, F, G, H, I, J	IPR036581	Cyanate lyase, C-terminal domain superfamily	Homologous Superfamily
A, B, C, D, E A, B, C, D, E, F, G, H, I, J	IPR008076	Cyanate hydratase	Family
A, B, C, D, E A, B, C, D, E, F, G, H, I, J	IPR003712	Cyanate lyase, C-terminal	Domain
A, B, C, D, E A, B, C, D, E, F, G, H, I, J	IPR048564	Cyanate hydratase, N-terminal domain	Domain
A, B, C, D, E A, B, C, D, E, F, G, H, I, J	IPR010982	Lambda repressor-like, DNA-binding domain superfamily	Homologous Superfamily