Annotations: 2QUN

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
D	Proteasome	e2qunD1	A: beta barrels	X: HTH	H: Nudix	T: Nudix	F: Proteasome	ECOD (v294.2)
C	Proteasome	e2qunC1	A: beta barrels	X: HTH	H: Nudix	T: Nudix	F: Proteasome	ECOD (v294.2)
B	Proteasome	e2qunB1	A: beta barrels	X: HTH	H: Nudix	T: Nudix	F: Proteasome	ECOD (v294.2)
A	Proteasome	e2qunA1	A: beta barrels	X: HTH	H: Nudix	T: Nudix	F: Proteasome	ECOD (v294.2)

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
D	3.20.20.150	Alpha Beta	Alpha-Beta Barrel	TIM Barrel	Divalent-metal-dependent TIM barrel enzymes	CATH (4.3.0)
C	3.20.20.150	Alpha Beta	Alpha-Beta Barrel	TIM Barrel	Divalent-metal-dependent TIM barrel enzymes	CATH (4.3.0)
B	3.20.20.150	Alpha Beta	Alpha-Beta Barrel	TIM Barrel	Divalent-metal-dependent TIM barrel enzymes	CATH (4.3.0)
A	3.20.20.150	Alpha Beta	Alpha-Beta Barrel	TIM Barrel	Divalent-metal-dependent TIM barrel enzymes	CATH (4.3.0)

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D	D-tagatose 3-epimerase	isomerase activity catalytic activity cation binding ion binding binding metal ion binding small molecule binding	-	-

Chains	Accession	Name	Type
A, B, C, D	IPR013022	Xylose isomerase-like, TIM barrel domain	Domain
A, B, C, D	IPR036237	Xylose isomerase-like superfamily	Homologous Superfamily
A, B, C, D	IPR050312	IolE/XylA/MocC-like	Family

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. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.

2QUN | pdb_00002qun