Annotations: 4JQU

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d4jqua1	Alpha and beta proteins (a+b)	UBC-like	UBC-like	UBC-related	automated matches	Baker's yeast (Saccharomyces cerevisiae S288C ) [TaxId: 559292 ],	SCOPe (2.08)
A	d4jqua2	Artifacts	Tags	Tags	Tags	N-terminal Tags	Baker's yeast (Saccharomyces cerevisiae S288C ) [TaxId: 559292 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	UBC-like	8034821	3000570	SCOP2B (2021-05-27)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	PF00179	e4jquA1	A: a+b two layers	X: UBC-like	H: UBC-like (From Topology)	T: UBC-like	F: PF00179	ECOD (1.6)
B	PF18499	e4jquB1	A: extended segments	X: Ubc7p-binding domain of Cue1p (From Topology)	H: Ubc7p-binding domain of Cue1p (From Topology)	T: Ubc7p-binding domain of Cue1p	F: PF18499	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.10.110.10	Alpha Beta	Roll	Ubiquitin Conjugating Enzyme	Ubiquitin Conjugating Enzyme	CATH (4.3.0)
B	1.10.287.4310	Mainly Alpha	Orthogonal Bundle	Helix Hairpins		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF00179	Ubiquitin-conjugating enzyme (UQ_con)	Ubiquitin-conjugating enzyme	Proteins destined for proteasome-mediated degradation may be ubiquitinated. Ubiquitination follows conjugation of ubiquitin to a conserved cysteine residue of UBC homologues. TSG101 is one of several UBC homologues that lacks this active site cystein ...	Proteins destined for proteasome-mediated degradation may be ubiquitinated. Ubiquitination follows conjugation of ubiquitin to a conserved cysteine residue of UBC homologues. TSG101 is one of several UBC homologues that lacks this active site cysteine [4, 5].	Domain
B	PF18499	Ubc7p-binding region of Cue1 (Cue1_U7BR)	Ubc7p-binding region of Cue1	Cue1p (coupling of ubiquitin conjugation to ER degradation protein 1) is an integral component of yeast endoplasmic reticulum (ER)-associated degradation (ERAD) ubiquitin ligase (E3) complexes. It tethers the ERAD ubiquitin-conjugating enzyme (E2), U ...	Cue1p (coupling of ubiquitin conjugation to ER degradation protein 1) is an integral component of yeast endoplasmic reticulum (ER)-associated degradation (ERAD) ubiquitin ligase (E3) complexes. It tethers the ERAD ubiquitin-conjugating enzyme (E2), Ubc7p, to the ER and prevents its degradation, and also activates Ubc7p. This domain represents the Ubc7p-binding region (U7BR) of Cue1p with Ubc7p. The U7BR is as E2-binding domain that includes three alpha-helices that interact extensively with the 'backside' of Ubc7p. U7BR stimulates both RING-independent and RING-dependent ubiquitin transfer from Ubc7p. Moreover, the U7BR enhances ubiquitin-activating enzyme (E1)-mediated charging of Ubc7p with ubiquitin [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Ubiquitin-conjugating enzyme E2 7	binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding ubiquitin conjugating enzyme activity aminoacyltransferase activity ubiquitin-like protein transferase activity catalytic activity, acting on a protein acyltransferase activity ubiquitin-like protein conjugating enzyme activity transferase activity catalytic activity ubiquitin-protein transferase activity	organonitrogen compound catabolic process organonitrogen compound metabolic process catabolic process proteolysis involved in protein catabolic process primary metabolic process protein catabolic process macromolecule catabolic 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 organonitrogen compound catabolic process organonitrogen compound metabolic process catabolic process proteolysis involved in protein catabolic process primary metabolic process protein catabolic process macromolecule catabolic 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 cellular response to stimulus response to stimulus response to organonitrogen compound response to nitrogen compound proteasomal protein catabolic process ERAD pathway cellular response to stress response to chemical response to stress cellular process response to endoplasmic reticulum stress fungal-type cell wall organization cellular component organization fungal-type cell wall organization or biogenesis cell wall organization or biogenesis cell wall organization cellular component organization or biogenesis external encapsulating structure organization response to metal ion response to cadmium ion protein ubiquitination macromolecule modification post-translational protein modification protein modification process protein modification by small protein conjugation protein modification by small protein conjugation or removal protein-DNA complex organization protein-containing complex organization chromatin organization	membrane-bounded organelle protein-containing complex cytoplasmic ubiquitin ligase complex intracellular anatomical structure ubiquitin ligase complex membrane protein complex transferase complex endomembrane system ER ubiquitin ligase complex endoplasmic reticulum subcompartment intracellular organelle nuclear outer membrane-endoplasmic reticulum membrane network endoplasmic reticulum protein-containing complex endoplasmic reticulum membrane membrane-bounded organelle protein-containing complex cytoplasmic ubiquitin ligase complex intracellular anatomical structure ubiquitin ligase complex membrane protein complex transferase complex endomembrane system ER ubiquitin ligase complex endoplasmic reticulum subcompartment intracellular organelle nuclear outer membrane-endoplasmic reticulum membrane network endoplasmic reticulum protein-containing complex endoplasmic reticulum membrane catalytic complex Doa10p ubiquitin ligase complex organelle subcompartment membrane cellular anatomical entity intracellular membrane-bounded organelle organelle endoplasmic reticulum cytoplasm organelle membrane intracellular protein-containing complex cytosol ubiquitin conjugating enzyme complex CUE1-UBC7 ubiquitin-conjugating enzyme complex Hrd1p ubiquitin ligase ERAD-L complex Hrd1p ubiquitin ligase complex
B	Coupling of ubiquitin conjugation to ER degradation protein 1	protein binding binding ubiquitin binding ubiquitin-like protein binding enzyme regulator activity enzyme activator activity ubiquitin-protein transferase regulator activity molecular function activator activity molecular function regulator activity ubiquitin-protein transferase activator activity	protein localization establishment of protein localization cellular localization establishment of protein localization to membrane establishment of protein localization to endoplasmic reticulum membrane localization within membrane protein localization to membrane establishment of localization localization establishment of protein localization to organelle cellular macromolecule localization macromolecule localization protein localization to organelle cellular process protein localization establishment of protein localization cellular localization establishment of protein localization to membrane establishment of protein localization to endoplasmic reticulum membrane localization within membrane protein localization to membrane establishment of localization localization establishment of protein localization to organelle cellular macromolecule localization macromolecule localization protein localization to organelle cellular process establishment of protein localization to endoplasmic reticulum protein localization to endoplasmic reticulum cellular response to stimulus organonitrogen compound catabolic process organonitrogen compound metabolic process catabolic process response to stimulus response to organonitrogen compound proteolysis involved in protein catabolic process response to nitrogen compound proteasomal protein catabolic process primary metabolic process protein catabolic process macromolecule catabolic process ERAD pathway cellular response to stress response to chemical response to stress proteolysis metabolic process protein metabolic process macromolecule metabolic process response to endoplasmic reticulum stress	membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle protein-containing complex cytoplasmic ubiquitin ligase complex ubiquitin ligase complex membrane protein complex transferase complex endomembrane system membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle protein-containing complex cytoplasmic ubiquitin ligase complex ubiquitin ligase complex membrane protein complex transferase complex endomembrane system ER ubiquitin ligase complex endoplasmic reticulum subcompartment nuclear outer membrane-endoplasmic reticulum membrane network endoplasmic reticulum protein-containing complex endoplasmic reticulum membrane catalytic complex Doa10p ubiquitin ligase complex organelle subcompartment membrane endoplasmic reticulum organelle membrane intracellular protein-containing complex ubiquitin conjugating enzyme complex CUE1-UBC7 ubiquitin-conjugating enzyme complex Hrd1p ubiquitin ligase ERAD-L complex Hrd1p ubiquitin ligase complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR000608	Ubiquitin-conjugating enzyme E2	Domain
A	IPR016135	Ubiquitin-conjugating enzyme/RWD-like	Homologous Superfamily
A	IPR023313	Ubiquitin-conjugating enzyme, active site	Active Site
B	IPR041158	Cue1, Ubc7p-binding domain	Domain
B	IPR003892	Ubiquitin system component CUE	Domain

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.