1AYZ

CRYSTAL STRUCTURE OF THE SACCHAROMYCES CEREVISIAE UBIQUITIN-CONJUGATING ENZYME RAD6 (UBC2) AT 2.6A RESOLUTION

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)
C	d1ayzc_	Alpha and beta proteins (a+b)	UBC-like	UBC-like	UBC-related	Ubiquitin conjugating enzyme, UBC	(Saccharomyces cerevisiae ) [TaxId: 4932 ],	SCOPe (2.08)
A	d1ayza_	Alpha and beta proteins (a+b)	UBC-like	UBC-like	UBC-related	Ubiquitin conjugating enzyme, UBC	(Saccharomyces cerevisiae ) [TaxId: 4932 ],	SCOPe (2.08)
B	d1ayzb_	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)
C	SCOP2B Superfamily	UBC-like	8034819	3000570	SCOP2B (2022-06-29)
A	SCOP2 Family	UBC-related	8022439	4001046	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	UBC-like	8034819	3000570	SCOP2 (2022-06-29)
B	SCOP2B Superfamily	UBC-like	8034819	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)
C	UQ_con	e1ayzC1	A: a+b two layers	X: UBC-like	H: UBC-like (From Topology)	T: UBC-like	F: UQ_con	ECOD (1.6)
A	UQ_con	e1ayzA1	A: a+b two layers	X: UBC-like	H: UBC-like (From Topology)	T: UBC-like	F: UQ_con	ECOD (1.6)
B	UQ_con	e1ayzB1	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)
C	3.10.110.10	Alpha Beta	Roll	Ubiquitin Conjugating Enzyme	Ubiquitin Conjugating Enzyme	CATH (4.3.0)
A	3.10.110.10	Alpha Beta	Roll	Ubiquitin Conjugating Enzyme	Ubiquitin Conjugating Enzyme	CATH (4.3.0)
B	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, B, C	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, B, C	UBIQUITIN-CONJUGATING ENZYME RAD6	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 binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate 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 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 protein-containing complex binding proteasome binding	sno(s)RNA transcription cellular biosynthetic process cellular metabolic process RNA metabolic process primary metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription nucleic acid biosynthetic process biosynthetic process sno(s)RNA metabolic process sno(s)RNA transcription cellular biosynthetic process cellular metabolic process RNA metabolic process primary metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription nucleic acid biosynthetic process biosynthetic process sno(s)RNA metabolic process metabolic process cellular process macromolecule metabolic process cellular response to stimulus catabolic process response to stimulus proteolysis involved in protein catabolic process response to nitrogen compound proteasomal protein catabolic process protein catabolic process macromolecule catabolic process ERAD pathway cellular response to stress response to chemical response to stress proteolysis protein metabolic process response to endoplasmic reticulum stress postreplication repair DNA synthesis involved in DNA repair DNA repair translesion synthesis DNA metabolic process error-free translesion synthesis DNA damage response DNA biosynthetic process transcription by RNA polymerase II sporulation resulting in formation of a cellular spore developmental process anatomical structure morphogenesis anatomical structure formation involved in morphogenesis anatomical structure development sporulation cytoplasm protein quality control proteasome-mediated ubiquitin-dependent protein catabolic process cellular response to misfolded protein response to misfolded protein modification-dependent macromolecule catabolic process cellular response to topologically incorrect protein cytoplasm protein quality control by the ubiquitin-proteasome system modification-dependent protein catabolic process response to topologically incorrect protein ubiquitin-dependent protein catabolic process protein quality control for misfolded or incompletely synthesized proteins DNA recombination mitotic recombination telomere organization chromosome organization telomere maintenance cellular component organization organelle organization telomere maintenance via recombination cellular component organization or biogenesis regulation of localization regulation of biological process nitrogen compound transport regulation of dipeptide transport transport regulation of transport oligopeptide transport biological regulation establishment of localization localization dipeptide transport amide transport regulation of oligopeptide transport DNA-templated transcription termination 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 regulation of cellular process regulation of cell cycle phase transition DNA damage checkpoint signaling signaling negative regulation of biological process negative regulation of cell cycle cell cycle phase transition regulation of cell cycle G1/S phase transition cell cycle G1/S phase transition intracellular signal transduction mitotic cell cycle negative regulation of mitotic cell cycle cell communication regulation of mitotic cell cycle mitotic DNA integrity checkpoint signaling mitotic DNA damage checkpoint signaling negative regulation of cellular process negative regulation of cell cycle phase transition signal transduction cell cycle regulation of cell cycle cell cycle process negative regulation of G1/S transition of mitotic cell cycle mitotic G1/S transition checkpoint signaling negative regulation of mitotic cell cycle phase transition regulation of cell cycle process negative regulation of cell cycle G1/S phase transition DNA integrity checkpoint signaling negative regulation of cell cycle process cell cycle checkpoint signaling regulation of mitotic cell cycle phase transition mitotic cell cycle checkpoint signaling mitotic G1 DNA damage checkpoint signaling mitotic cell cycle process regulation of G1/S transition of mitotic cell cycle signal transduction in response to DNA damage G1/S transition of mitotic cell cycle mitotic cell cycle phase transition DNA duplex unwinding DNA geometric change DNA conformation change sexual reproduction reproductive process meiotic cell cycle meiotic cell cycle process meiotic DNA double-strand break formation meiosis I cell cycle process protein polyubiquitination ubiquitin-dependent protein catabolic process via the N-end rule pathway error-prone translesion synthesis double-strand break repair recombinational repair double-strand break repair via homologous recombination subtelomeric heterochromatin formation negative regulation of cellular metabolic process chromatin organization chromatin remodeling negative regulation of macromolecule metabolic process regulation of biosynthetic process heterochromatin formation epigenetic regulation of gene expression negative regulation of metabolic process regulation of cellular metabolic process regulation of macromolecule metabolic process negative regulation of cellular biosynthetic process regulation of cellular biosynthetic process regulation of gene expression negative regulation of gene expression constitutive heterochromatin formation negative regulation of biosynthetic process negative regulation of macromolecule biosynthetic process negative regulation of gene expression, epigenetic regulation of macromolecule biosynthetic process regulation of metabolic process cellular response to unfolded protein response to unfolded protein error-free postreplication DNA repair stress-induced homeostatically regulated protein degradation pathway	protein-containing complex MUB1-RAD6-UBR2 ubiquitin ligase complex catalytic complex transferase complex intracellular protein-containing complex RAD6-UBR2 ubiquitin ligase complex intracellular anatomical structure cytoplasm cellular anatomical entity intracellular organelle organelle intracellular non-membrane-bounded organelle chromatin chromosome protein-containing complex MUB1-RAD6-UBR2 ubiquitin ligase complex catalytic complex transferase complex intracellular protein-containing complex RAD6-UBR2 ubiquitin ligase complex intracellular anatomical structure cytoplasm cellular anatomical entity intracellular organelle organelle intracellular non-membrane-bounded organelle chromatin chromosome non-membrane-bounded organelle ubiquitin ligase complex HULC complex ubiquitin conjugating enzyme complex Rad6-Rad18 complex chromosome, telomeric region chromosomal region UBR1-RAD6 ubiquitin ligase complex membrane-bounded organelle nucleus intracellular membrane-bounded organelle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C	IPR050113	Ubiquitin-conjugating enzyme	Family
A, B, C	IPR016135	Ubiquitin-conjugating enzyme/RWD-like	Homologous Superfamily
A, B, C	IPR000608	Ubiquitin-conjugating enzyme E2	Domain
A, B, C	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.