Annotations: 9QY8

Crystal structure of apoform human USP18

External Resource: Annotation

Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF00072	Response regulator receiver domain (Response_reg)	Response regulator receiver domain	This domain receives the signal from the sensor partner in bacterial two-component systems. It is usually found N-terminal to a DNA binding effector domain.	Domain
A, B	PF00443	Ubiquitin carboxyl-terminal hydrolase (UCH)	Ubiquitin carboxyl-terminal hydrolase	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Ubl carboxyl-terminal hydrolase 18,Response regulator FrzS	cysteine-type peptidase activity ubiquitin-like protein peptidase activity peptidase activity cysteine-type deubiquitinase activity catalytic activity, acting on a protein hydrolase activity catalytic activity deubiquitinase activity ISG15-specific peptidase activity molecular adaptor activity	response to stimulus response to chemical response to stilbenoid regulation of protein stability biological regulation regulation of biological quality biological process involved in interspecies interaction between organisms immune response response to other organism defense response defense response to symbiont response to external stimulus response to biotic stimulus defense response to virus response to stimulus response to chemical response to stilbenoid regulation of protein stability biological regulation regulation of biological quality biological process involved in interspecies interaction between organisms immune response response to other organism defense response defense response to symbiont response to external stimulus response to biotic stimulus defense response to virus immune system process defense response to other organism response to stress innate immune response antiviral innate immune response response to external biotic stimulus response to virus regulation of defense response regulation of biological process regulation of response to external stimulus regulation of inflammatory response regulation of response to stimulus regulation of response to stress inflammatory response response to bacterium cellular response to stimulus regulation of cellular process regulation of type I interferon-mediated signaling pathway negative regulation of biological process response to cytokine regulation of signal transduction cell communication interferon-mediated signaling pathway cellular response to type I interferon cellular response to cytokine stimulus regulation of immune system process signal transduction regulation of innate immune response negative regulation of immune response regulation of response to cytokine stimulus negative regulation of response to cytokine stimulus negative regulation of response to external stimulus negative regulation of defense response regulation of immune response response to type I interferon regulation of response to biotic stimulus negative regulation of response to biotic stimulus negative regulation of signaling signaling negative regulation of cell communication cytokine-mediated signaling pathway negative regulation of cellular process regulation of signaling cell surface receptor signaling pathway negative regulation of response to stimulus regulation of cytokine-mediated signaling pathway negative regulation of signal transduction response to peptide negative regulation of immune system process negative regulation of cytokine-mediated signaling pathway type I interferon-mediated signaling pathway regulation of cell communication cellular process negative regulation of type I interferon-mediated signaling pathway negative regulation of innate immune response protein deubiquitination primary metabolic process protein modification by small protein removal macromolecule modification metabolic process protein metabolic process macromolecule metabolic process post-translational protein modification protein modification process protein modification by small protein conjugation or removal proteolysis phosphorelay signal transduction system intracellular signal transduction	cellular anatomical structure intracellular anatomical structure cytoplasm cytosol membrane-bounded organelle intracellular organelle organelle nucleus intracellular membrane-bounded organelle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR050164	Ubiquitin carboxyl-terminal hydrolases	Family
A, B	IPR028889	Ubiquitin specific protease UPS, catalytic domain	Domain
A, B	IPR018200	Ubiquitin specific protease, conserved site	Conserved Site
A, B	IPR001394	Peptidase C19, ubiquitin carboxyl-terminal hydrolase	Domain
A, B	IPR038765	Papain-like cysteine peptidase superfamily	Homologous Superfamily
A, B	IPR011006	CheY-like superfamily	Homologous Superfamily
A, B	IPR001789	Signal transduction response regulator, receiver domain	Domain
A, B	IPR050595	Bacterial response regulator	Family

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B	: Q9UMW8	leiomyosarcoma epithelioid leiomyosarcoma pseudo-TORCH syndrome 2 myxoid leiomyosarcoma Aicardi-Goutieres syndrome atrial fibrillation lung benign neoplasm microcephaly Aicardi-Goutieres syndrome 1 congenital anemia intellectual disability Lung Neoplasms psoriasis Aicardi-Goutieres syndrome 2 pseudo-TORCH syndrome

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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. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.

9QY8 | pdb_00009qy8

Crystal structure of apoform human USP18

External Resource: Annotation

Protein Family Annotation Pfam Database Homepage

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

InterPro: Protein Family Classification InterPro Database Homepage

Pharos: Disease Associations Pharos Homepage Annotation