1YX4

Structure of S5a bound to monoubiquitin provides a model for polyubiquitin recognition

External Resource: Annotation

Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	PF02809	e1yx4A1	A: extended segments	X: UIM domain (From Topology)	H: UIM domain (From Topology)	T: UIM domain	F: PF02809	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.10.287.3990	Mainly Alpha	Orthogonal Bundle	Helix Hairpins		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF02809	Ubiquitin interaction motif (UIM)	Ubiquitin interaction motif	-	Motif

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	26S proteasome non-ATPase regulatory subunit 4	polyubiquitin modification-dependent protein binding protein binding binding modification-dependent protein binding molecular adaptor activity RNA binding organic cyclic compound binding nucleic acid binding identical protein binding	organonitrogen compound catabolic process organonitrogen compound metabolic process catabolic process proteolysis involved in protein catabolic process primary metabolic process proteasomal protein catabolic process protein catabolic process proteasome-mediated ubiquitin-dependent protein catabolic process macromolecule catabolic process organic substance metabolic process modification-dependent macromolecule catabolic process modification-dependent protein catabolic process proteolysis ubiquitin-dependent protein catabolic process organonitrogen compound catabolic process organonitrogen compound metabolic process catabolic process proteolysis involved in protein catabolic process primary metabolic process proteasomal protein catabolic process protein catabolic process proteasome-mediated ubiquitin-dependent protein catabolic process macromolecule catabolic process organic substance metabolic process modification-dependent macromolecule catabolic process modification-dependent protein catabolic process proteolysis ubiquitin-dependent protein catabolic process metabolic process protein metabolic process macromolecule metabolic process organic substance catabolic process	proteasome accessory complex protein-containing complex intracellular anatomical structure catalytic complex peptidase complex proteasome complex endopeptidase complex cellular anatomical entity intracellular protein-containing complex proteasome regulatory particle proteasome regulatory particle, base subcomplex cytoplasm cytosol membrane-bounded organelle proteasome accessory complex protein-containing complex intracellular anatomical structure catalytic complex peptidase complex proteasome complex endopeptidase complex cellular anatomical entity intracellular protein-containing complex proteasome regulatory particle proteasome regulatory particle, base subcomplex cytoplasm cytosol membrane-bounded organelle nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen intracellular organelle nucleoplasm organelle lumen organelle nuclear lumen

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR036465	von Willebrand factor A-like domain superfamily	Homologous Superfamily
A	IPR002035	von Willebrand factor, type A	Domain
A	IPR003903	Ubiquitin interacting motif	Conserved Site
A	IPR049590	PSMD4, RAZUL domain	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	Pharos: P55036	heart disease ovarian cancer lung cancer plasma cell myeloma myocardial infarction

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 R01GM133198.