2QT6

Crystal Structure Determination of a Blue Laccase from Lentinus Tigrinus

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
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)
A	d2qt6a1	All beta proteins	Cupredoxin-like	Cupredoxins	automated matches	automated matches	(Lentinus tigrinus ) [TaxId: 5365 ],	SCOPe (2.08)
B	d2qt6b1	All beta proteins	Cupredoxin-like	Cupredoxins	automated matches	automated matches	(Lentinus tigrinus ) [TaxId: 5365 ],	SCOPe (2.08)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Cu-oxidase_2	e2qt6A9	A: beta sandwiches	X: Cupredoxin-like	H: Cupredoxin-related (From Topology)	T: Cupredoxin-related	F: Cu-oxidase_2	ECOD (1.6)
A	Cu-oxidase_3	e2qt6A1	A: beta sandwiches	X: Cupredoxin-like	H: Cupredoxin-related (From Topology)	T: Cupredoxin-related	F: Cu-oxidase_3	ECOD (1.6)
A	Cu-oxidase	e2qt6A8	A: beta sandwiches	X: Cupredoxin-like	H: Cupredoxin-related (From Topology)	T: Cupredoxin-related	F: Cu-oxidase	ECOD (1.6)
B	Cu-oxidase_2	e2qt6B9	A: beta sandwiches	X: Cupredoxin-like	H: Cupredoxin-related (From Topology)	T: Cupredoxin-related	F: Cu-oxidase_2	ECOD (1.6)
B	Cu-oxidase_3	e2qt6B1	A: beta sandwiches	X: Cupredoxin-like	H: Cupredoxin-related (From Topology)	T: Cupredoxin-related	F: Cu-oxidase_3	ECOD (1.6)
B	Cu-oxidase	e2qt6B8	A: beta sandwiches	X: Cupredoxin-like	H: Cupredoxin-related (From Topology)	T: Cupredoxin-related	F: Cu-oxidase	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.60.40.420	Mainly Beta	Sandwich	Immunoglobulin-like	Cupredoxins - blue copper proteins	CATH (4.3.0)
B	2.60.40.420	Mainly Beta	Sandwich	Immunoglobulin-like	Cupredoxins - blue copper proteins	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF00394	Multicopper oxidase (Cu-oxidase)	Multicopper oxidase	Many of the proteins in this family contain multiple similar copies of this plastocyanin-like domain.	Domain
A, B	PF07732	Multicopper oxidase (Cu-oxidase_3)	Multicopper oxidase	This entry contains many divergent copper oxidase-like domains that are not recognised by the Pfam:PF00394 model.	Domain
A, B	PF07731	Multicopper oxidase (Cu-oxidase_2)	Multicopper oxidase	This entry contains many divergent copper oxidase-like domains that are not recognised by the Pfam:PF00394 model.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Laccase	cation binding transition metal ion binding copper ion binding ion binding binding metal ion binding small molecule binding oxidoreductase activity, acting on diphenols and related substances as donors, oxygen as acceptor oxidoreductase activity oxidoreductase activity, acting on diphenols and related substances as donors hydroquinone:oxygen oxidoreductase activity catalytic activity	-	extracellular region cellular anatomical entity

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR008972	Cupredoxin	Homologous Superfamily
A, B	IPR001117	Multicopper oxidase, second cupredoxin domain	Domain
A, B	IPR011706	Multicopper oxidase, C-terminal	Domain
A, B	IPR045087	Multicopper oxidase	Family
A, B	IPR033138	Multicopper oxidases, conserved site	Conserved Site
A, B	IPR011707	Multicopper oxidase-like, N-terminal	Domain

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

Chains	Enzyme Name	Description	Catalytic Residues
A	laccase M-CSA #390	Laccase catalyses the oxidation of a variety of organic substrates coupled to the reduction of oxygen to water, using three precisely positioned copper ions. It is widely believed to be the simplest representative of the ubiquitous blue multi-copper oxidase family. Laccase is implicated in a wide spectrum of biological activities and, in particular, plays a key role in morphogenesis, development and lignin metabolism in fungi and plants.	Defined by 13 residues: HIS:A-64HIS:A-66HIS:A-109HIS:A-111HIS:A-394HIS:A-397HIS:A-399HIS:A-451CYS:A-452HIS:A-453ILE:A-454HIS:A-457PHE:A-462 \| Explore in 3D: M-CSA Motif Definition Up to 10 residues are supported for Structure Motif searching, this motif has 13 residues. EC: 1.10.3.2 (PDB Primary Data)

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.