Annotations: 4JQU

Crystal structure of Ubc7p in complex with the U7BR of Cue1p

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	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 (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	Cue1_U7BR	e4jquB1	A: alpha arrays	X: Insertion subdomain in DsbA-like	H: Elongation factor TFIIS domain 2/ Kix domain of creb binding protein	T: Elongation factor TFIIS domain 2/ Kix domain of creb binding protein	F: Cue1_U7BR	ECOD (v295.2)
A	Peptidase_M10	e4jquA1	A: alpha arrays	X: Major vault protein (MVP) structural repeat domain	H: Major vault protein (MVP) structural repeat domain	T: Major vault protein (MVP) structural repeat domain	F: Peptidase_M10	ECOD (v295.2)

Domain Annotation: CATH CATH Database Homepage

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

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
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
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

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
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	localization establishment of protein localization cellular localization establishment of protein localization to organelle establishment of protein localization to membrane establishment of protein localization to endoplasmic reticulum membrane cellular process localization within membrane establishment of protein localization to endoplasmic reticulum establishment of localization cellular response to stimulus catabolic process response to stimulus proteasomal protein catabolic process localization establishment of protein localization cellular localization establishment of protein localization to organelle establishment of protein localization to membrane establishment of protein localization to endoplasmic reticulum membrane cellular process localization within membrane establishment of protein localization to endoplasmic reticulum establishment of localization cellular response to stimulus catabolic process response to stimulus 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 metabolic process protein metabolic process macromolecule metabolic process response to endoplasmic reticulum stress	membrane-bounded organelle intracellular organelle cellular anatomical structure intracellular anatomical structure mitochondrion organelle cytoplasm 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 cellular anatomical structure intracellular anatomical structure mitochondrion organelle cytoplasm 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
A	Ubiquitin-conjugating enzyme E2 7	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	protein polyubiquitination primary metabolic process protein ubiquitination macromolecule modification metabolic process cellular process protein metabolic process macromolecule metabolic process post-translational protein modification protein modification process protein modification by small protein conjugation protein modification by small protein conjugation or removal cellular response to stimulus catabolic process protein polyubiquitination primary metabolic process protein ubiquitination macromolecule modification metabolic process cellular process protein metabolic process macromolecule metabolic process post-translational protein modification protein modification process protein modification by small protein conjugation protein modification by small protein conjugation or removal cellular response to stimulus catabolic process response to stimulus proteasomal protein catabolic process protein catabolic process macromolecule catabolic process ERAD pathway cellular response to stress response to chemical response to stress 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 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 cellular anatomical structure nuclear outer membrane-endoplasmic reticulum membrane network endoplasmic reticulum protein-containing complex 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 cellular anatomical structure nuclear outer membrane-endoplasmic reticulum membrane network endoplasmic reticulum protein-containing complex endoplasmic reticulum membrane catalytic complex Doa10p ubiquitin ligase complex organelle subcompartment membrane intracellular membrane-bounded organelle organelle endoplasmic reticulum cytoplasm 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
B	IPR041158	Cue1, Ubc7p-binding domain	Domain
B	IPR003892	Ubiquitin system component CUE	Domain
A	IPR016135	Ubiquitin-conjugating enzyme/RWD-like	Homologous Superfamily
A	IPR000608	Ubiquitin-conjugating (UBC), catalytic core domain	Domain
A	IPR023313	Ubiquitin-conjugating enzyme, active site	Active Site
A	IPR050113	Ubiquitin-conjugating enzyme E2-like	Family