Annotations: 4D0P

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	PCI	e4d0pA2	A: alpha arrays	X: HTH	H: HTH	T: winged	F: PCI	ECOD (1.6)
A	RPN7_1	e4d0pA1	A: alpha superhelices	X: Repetitive alpha hairpins	H: ARM repeat (From Topology)	T: ARM repeat	F: RPN7_1	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.10.10.10	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF01399	PCI domain (PCI)	PCI domain	This domain has also been called the PINT motif (Proteasome, Int-6, Nip-1 and TRIP-15) [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	COP9 SIGNALOSOME COMPLEX SUBUNIT 4	ubiquitin-like protein peptidase activity peptidase activity catalytic activity, acting on a protein hydrolase activity catalytic activity deNEDDylase activity	organonitrogen compound metabolic process primary metabolic process organic substance metabolic process macromolecule modification metabolic process protein metabolic process macromolecule metabolic process post-translational protein modification protein modification process protein neddylation protein modification by small protein conjugation protein modification by small protein conjugation or removal protein deneddylation protein modification by small protein removal organonitrogen compound metabolic process primary metabolic process organic substance metabolic process macromolecule modification metabolic process protein metabolic process macromolecule metabolic process post-translational protein modification protein modification process protein neddylation protein modification by small protein conjugation protein modification by small protein conjugation or removal protein deneddylation protein modification by small protein removal regulation of biological process regulation of protein modification process regulation of post-translational protein modification regulation of protein metabolic process biological regulation regulation of macromolecule metabolic process regulation of primary metabolic process regulation of protein neddylation regulation of protein modification by small protein conjugation or removal regulation of metabolic process	cell junction cellular anatomical entity membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen nuclear speck nuclear body intracellular organelle nucleoplasm organelle lumen organelle cell junction cellular anatomical entity membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen nuclear speck nuclear body intracellular organelle nucleoplasm organelle lumen organelle nuclear lumen cytoplasm cytosol protein-containing complex nuclear protein-containing complex COP9 signalosome transport vesicle synapse intracellular vesicle endomembrane system presynapse cytoplasmic vesicle synaptic vesicle secretory vesicle vesicle exocytic vesicle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR041406	COP9 signalosome complex subunit 4, helix turn helix domain	Domain
A	IPR036388	Winged helix-like DNA-binding domain superfamily	Homologous Superfamily
A	IPR036390	Winged helix DNA-binding domain superfamily	Homologous Superfamily
A	IPR000717	Proteasome component (PCI) domain	Domain
A	IPR040134	26S Proteasome non-ATPase regulatory subunit 12/COP9 signalosome complex subunit 4	Family

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	Pharos: Q9BT78	diabetes mellitus malignant colon neoplasm lung carcinoma ovarian cancer lymphoplasmacytic lymphoma plasma cell myeloma

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.