Annotations: 1QCQ

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1qcqa_	Alpha and beta proteins (a+b)	UBC-like	UBC-like	UBC-related	Ubiquitin conjugating enzyme, UBC	(Saccharomyces cerevisiae ) [TaxId: 4932 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	UBC-related	8022442	4001046	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	UBC-like	8034822	3000570	SCOP2 (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	UQ_con	e1qcqA1	A: a+b two layers	X: UBC-like	H: UBC-like (From Topology)	T: UBC-like	F: UQ_con	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)

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

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	PROTEIN (UBIQUITIN CONJUGATING ENZYME)	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 protein binding ubiquitin binding ubiquitin-like protein binding ubiquitin protein ligase binding ubiquitin-like protein ligase binding enzyme binding protein-containing complex binding proteasome binding protein-macromolecule adaptor activity molecular adaptor activity	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 cellular process protein metabolic process macromolecule metabolic process protein polyubiquitination 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 cellular process protein metabolic process macromolecule metabolic process protein polyubiquitination 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 proteasomal protein catabolic process mitochondria-associated ubiquitin-dependent protein catabolic process proteasome-mediated ubiquitin-dependent protein catabolic process cellular component disassembly ribosome disassembly rescue of stalled ribosome translation gene expression macromolecule biosynthetic process cellular component organization organelle organization organelle disassembly biosynthetic process translational elongation cellular component organization or biogenesis cellular response to stimulus cellular response to heat response to stimulus cellular response to stress response to stress response to heat response to abiotic stimulus response to temperature stimulus cytoplasm protein quality control cellular response to misfolded protein response to misfolded protein cellular response to topologically incorrect protein cytoplasm protein quality control by the ubiquitin-proteasome system response to topologically incorrect protein protein quality control for misfolded or incompletely synthesized proteins ubiquitin-dependent protein catabolic process via the multivesicular body sorting pathway ribosome-associated ubiquitin-dependent protein catabolic process	cellular anatomical structure intracellular anatomical structure cytoplasm protein-containing complex ubiquitin ligase complex catalytic complex transferase complex intracellular protein-containing complex membrane-bounded organelle intracellular organelle organelle nucleus intracellular membrane-bounded organelle

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

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.