2FCQ

X-ray Crystal Structure of a Chemically Synthesized Ubiquitin with a Cubic Space Group

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	d2fcqa1	Designed proteins	Ubiquitin	Ubiquitin	Ubiquitin	Ubiquitin	( ) [TaxId: ], (Gallus gallus ) [TaxId: 9031 ],	SCOPe (2.08)
A	d2fcqa2	Artifacts	Tags	Tags	Tags	C-terminal Tags	( ) [TaxId: ], (Gallus gallus ) [TaxId: 9031 ],	SCOPe (2.08)
B	d2fcqb1	Designed proteins	Ubiquitin	Ubiquitin	Ubiquitin	Ubiquitin	( ) [TaxId: ], (Gallus gallus ) [TaxId: 9031 ],	SCOPe (2.08)
B	d2fcqb2	Artifacts	Tags	Tags	Tags	C-terminal Tags	( ) [TaxId: ], (Gallus gallus ) [TaxId: 9031 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Ubiquitin-like	8100608	3000157	SCOP2B (2022-06-29)
B	SCOP2 Family	Ubiquitin-related	8100607	4000962	SCOP2 (2022-06-29)
B	SCOP2 Superfamily	Ubiquitin-like	8100608	3000157	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	ubiquitin	e2fcqA1	A: a+b two layers	X: beta-Grasp	H: Ubiquitin-related	T: Ubiquitin-like	F: ubiquitin	ECOD (1.6)
B	ubiquitin	e2fcqB1	A: a+b two layers	X: beta-Grasp	H: Ubiquitin-related	T: Ubiquitin-like	F: ubiquitin	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.10.20.90	Alpha Beta	Roll	Ubiquitin-like (UB roll)	Phosphatidylinositol 3-kinase Catalytic Subunit	CATH (4.3.0)
B	3.10.20.90	Alpha Beta	Roll	Ubiquitin-like (UB roll)	Phosphatidylinositol 3-kinase Catalytic Subunit	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF00240	Ubiquitin family (ubiquitin)	Ubiquitin family	This family contains a number of ubiquitin-like proteins: SUMO (smt3 homologue) (see Swiss:Q02724), Nedd8 (see Swiss:P29595), Elongin B (see Swiss:Q15370), Rub1 (see Swiss:Q9SHE7), and Parkin (see Swiss:O60260). A number of them are thought to carry ...	This family contains a number of ubiquitin-like proteins: SUMO (smt3 homologue) (see Swiss:Q02724), Nedd8 (see Swiss:P29595), Elongin B (see Swiss:Q15370), Rub1 (see Swiss:Q9SHE7), and Parkin (see Swiss:O60260). A number of them are thought to carry a distinctive five-residue motif termed the proteasome-interacting motif (PIM), which may have a biologically significant role in protein delivery to proteasomes and recruitment of proteasomes to transcription sites [5].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Ubiquitin	-	-	cellular anatomical structure intracellular anatomical structure cytoplasm membrane-bounded organelle intracellular organelle organelle nucleus intracellular membrane-bounded organelle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR019956	Ubiquitin domain	Domain
A, B	IPR019954	Ubiquitin conserved site	Conserved Site
A, B	IPR050158	Ubiquitin and ubiquitin-like	Family
A, B	IPR029071	Ubiquitin-like domain superfamily	Homologous Superfamily
A, B	IPR000626	Ubiquitin-like domain	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 R01GM157729.