4DOI

Crystal structure of Arabidopsis thaliana chalcone isomerase At3g55120 (AtCHI)

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	d4doia_	Alpha and beta proteins (a+b)	Chalcone isomerase	Chalcone isomerase	automated matches	automated matches	mouse-ear cress,thale-cress (Arabidopsis thaliana ) [TaxId: 3702 ],	SCOPe (2.08)
B	d4doib_	Alpha and beta proteins (a+b)	Chalcone isomerase	Chalcone isomerase	automated matches	automated matches	mouse-ear cress,thale-cress (Arabidopsis thaliana ) [TaxId: 3702 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Cytochrome P460/chalcone isomerase-like	8079484	3000788	SCOP2B (2022-06-29)
B	SCOP2 Family	Chalcone isomerase-like	8079483	4001110	SCOP2 (2022-06-29)
B	SCOP2 Superfamily	Cytochrome P460/chalcone isomerase-like	8079484	3000788	SCOP2 (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	Chalcone	e4doiA1	A: a+b two layers	X: Chalcone isomerase (From Topology)	H: Chalcone isomerase (From Topology)	T: Chalcone isomerase	F: Chalcone	ECOD (1.6)
B	Chalcone	e4doiB1	A: a+b two layers	X: Chalcone isomerase (From Topology)	H: Chalcone isomerase (From Topology)	T: Chalcone isomerase	F: Chalcone	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.50.70.10	Alpha Beta	3-Layer(bba) Sandwich	Chalcone isomerase		CATH (4.3.0)
A	1.10.890.20	Mainly Alpha	Orthogonal Bundle	10k-s Protein, Hypothetical Protein A	Chain A	CATH (4.3.0)
B	3.50.70.10	Alpha Beta	3-Layer(bba) Sandwich	Chalcone isomerase		CATH (4.3.0)
B	1.10.890.20	Mainly Alpha	Orthogonal Bundle	10k-s Protein, Hypothetical Protein A	Chain A	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF02431	Chalcone-flavanone isomerase (Chalcone)	Chalcone-flavanone isomerase	Chalcone-flavanone isomerase is a plant enzyme responsible for the isomerisation of chalcone to naringenin, 4',5,7-trihydroxyflavanone, a key step in the biosynthesis of flavonoids.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Chalcone--flavonone isomerase 1	intramolecular lyase activity isomerase activity chalcone isomerase activity catalytic activity	flavonoid metabolic process flavonoid biosynthetic process biosynthetic process metabolic process response to light stimulus response to stimulus response to radiation response to abiotic stimulus response to UV response to auxin response to hormone response to endogenous stimulus response to chemical response to UV-B	intracellular anatomical structure cytoplasm cellular anatomical entity cytosol membrane-bounded organelle organelle subcompartment membrane extrinsic component of organelle membrane intracellular membrane-bounded organelle endomembrane system endoplasmic reticulum subcompartment intracellular organelle extrinsic component of endoplasmic reticulum membrane organelle intracellular anatomical structure cytoplasm cellular anatomical entity cytosol membrane-bounded organelle organelle subcompartment membrane extrinsic component of organelle membrane intracellular membrane-bounded organelle endomembrane system endoplasmic reticulum subcompartment intracellular organelle extrinsic component of endoplasmic reticulum membrane organelle nuclear outer membrane-endoplasmic reticulum membrane network endoplasmic reticulum organelle membrane extrinsic component of membrane endoplasmic reticulum membrane vacuolar membrane plant-type vacuole membrane vacuole bounding membrane of organelle plant-type vacuole plastid chloroplast nucleus

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR016087	Chalcone isomerase	Domain
A, B	IPR016088	Chalcone isomerase, 3-layer sandwich	Homologous Superfamily
A, B	IPR016089	Chalcone isomerase, orthogonal bundle domain superfamily	Homologous Superfamily
A, B	IPR044164	Chalcone--flavonone isomerase	Family
A, B	IPR036298	Chalcone isomerase superfamily	Homologous Superfamily

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.