4WTH

Ataxin-3 Carboxy Terminal Region - Crystal C2 (triclinic)

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Type 2 solute binding protein-like	8058187	3000083	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Type 2 solute binding protein-like	8058187	3000083	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)
A	SBP_bac_1_C	e4wthA1	A: a/b three-layered sandwiches	X: Periplasmic binding protein-like II (From Topology)	H: Periplasmic binding protein-like II (From Topology)	T: Periplasmic binding protein-like II	F: SBP_bac_1_C	ECOD (1.6)
A	SBP_bac_1_N_1	e4wthA2	A: a/b three-layered sandwiches	X: Periplasmic binding protein-like II (From Topology)	H: Periplasmic binding protein-like II (From Topology)	T: Periplasmic binding protein-like II	F: SBP_bac_1_N_1	ECOD (1.6)
B	SBP_bac_1_C	e4wthB1	A: a/b three-layered sandwiches	X: Periplasmic binding protein-like II (From Topology)	H: Periplasmic binding protein-like II (From Topology)	T: Periplasmic binding protein-like II	F: SBP_bac_1_C	ECOD (1.6)
B	SBP_bac_1_N_1	e4wthB2	A: a/b three-layered sandwiches	X: Periplasmic binding protein-like II (From Topology)	H: Periplasmic binding protein-like II (From Topology)	T: Periplasmic binding protein-like II	F: SBP_bac_1_N_1	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF01547	Bacterial extracellular solute-binding protein (SBP_bac_1)	Bacterial extracellular solute-binding protein	-	Family
A, B	PF16619	Unstructured region C-term to UIM in Ataxin3 (SUIM_assoc)	Unstructured region C-term to UIM in Ataxin3	-	Disordered

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Maltose-binding periplasmic protein, Ataxin-3 chimera	transporter activity carbohydrate transmembrane transporter activity transmembrane transporter activity oligosaccharide binding binding disaccharide binding carbohydrate binding maltose binding ubiquitin-like protein peptidase activity peptidase activity catalytic activity, acting on a protein hydrolase activity K48-linked deubiquitinase activity catalytic activity transporter activity carbohydrate transmembrane transporter activity transmembrane transporter activity oligosaccharide binding binding disaccharide binding carbohydrate binding maltose binding ubiquitin-like protein peptidase activity peptidase activity catalytic activity, acting on a protein hydrolase activity K48-linked deubiquitinase activity catalytic activity deubiquitinase activity K63-linked deubiquitinase activity cysteine-type peptidase activity cysteine-type deubiquitinase activity ubiquitin protein ligase binding protein binding ubiquitin-like protein ligase binding enzyme binding ATPase binding identical protein binding	cellular response to stimulus cellular response to stress response to stimulus DNA damage response response to stress cellular process cell chemotaxis chemotaxis response to external stimulus cellular response to chemical stimulus taxis response to chemical cell migration cell motility cellular response to stimulus cellular response to stress response to stimulus DNA damage response response to stress cellular process cell chemotaxis chemotaxis response to external stimulus cellular response to chemical stimulus taxis response to chemical cell migration cell motility locomotion localization transport carbohydrate transport oligosaccharide transport disaccharide transport establishment of localization maltose transport polysaccharide localization dextrin transport macromolecule localization maltodextrin transmembrane transport polysaccharide transport response to disaccharide response to oxygen-containing compound detection of maltose stimulus detection of stimulus response to carbohydrate detection of chemical stimulus detection of disaccharide stimulus response to maltose detection of carbohydrate stimulus catabolic process positive regulation of protein metabolic process proteolysis involved in protein catabolic process positive regulation of biological process macromolecule catabolic process regulation of ubiquitin-dependent protein catabolic process regulation of primary metabolic process positive regulation of metabolic process positive regulation of ubiquitin-dependent protein catabolic process regulation of proteolysis regulation of proteolysis involved in protein catabolic process modification-dependent macromolecule catabolic process proteolysis positive regulation of macromolecule metabolic process protein metabolic process regulation of biological process regulation of protein metabolic process biological regulation primary metabolic process regulation of macromolecule metabolic process protein catabolic process regulation of catabolic process positive regulation of proteolysis involved in protein catabolic process positive regulation of catabolic process modification-dependent protein catabolic process positive regulation of proteolysis metabolic process ubiquitin-dependent protein catabolic process macromolecule metabolic process regulation of metabolic process cellular response to heat response to heat response to abiotic stimulus response to temperature stimulus protein deubiquitination monoubiquitinated protein deubiquitination protein modification by small protein removal macromolecule modification post-translational protein modification protein modification process protein modification by small protein conjugation or removal cellular component organization organelle organization actin cytoskeleton organization actin filament-based process cellular component organization or biogenesis cytoskeleton organization protein K63-linked deubiquitination proteasomal protein catabolic process proteasome-mediated ubiquitin-dependent protein catabolic process protein localization to cytosolic proteasome complex protein localization cellular localization cellular macromolecule localization developmental process multicellular organism development multicellular organismal process anatomical structure development nervous system development system development protein K48-linked deubiquitination trans-synaptic signaling synaptic signaling signaling anterograde trans-synaptic signaling cell-cell signaling chemical synaptic transmission cell communication microtubule cytoskeleton organization microtubule-based process regulation of cellular process negative regulation of signaling negative regulation of intracellular signal transduction negative regulation of biological process regulation of signal transduction intracellular signal transduction negative regulation of cell communication negative regulation of TORC1 signaling regulation of intracellular signal transduction negative regulation of TOR signaling negative regulation of cellular process signal transduction regulation of TORC1 signaling TOR signaling regulation of signaling regulation of TOR signaling negative regulation of response to stimulus negative regulation of signal transduction regulation of response to stimulus regulation of cell communication TORC1 signaling intermediate filament-based process intermediate filament cytoskeleton organization DNA metabolic process nucleic acid metabolic process nucleobase-containing compound metabolic process nucleotide-excision repair DNA repair response to nutrient levels cellular response to amino acid starvation cellular response to starvation cellular response to nutrient levels response to amino acid starvation response to starvation cellular response to misfolded protein response to misfolded protein cellular response to topologically incorrect protein response to topologically incorrect protein protein quality control for misfolded or incompletely synthesized proteins positive regulation of proteasomal protein catabolic process regulation of cellular response to stress ERAD pathway response to endoplasmic reticulum stress regulation of ERAD pathway response to nitrogen compound positive regulation of protein catabolic process regulation of proteasomal protein catabolic process positive regulation of ERAD pathway regulation of response to endoplasmic reticulum stress positive regulation of response to stimulus positive regulation of response to endoplasmic reticulum stress regulation of response to stress positive regulation of cellular process regulation of protein catabolic process cell adhesion regulation of cell-substrate adhesion regulation of cell adhesion cell-substrate adhesion	ATPase dependent transmembrane transport complex protein-containing complex plasma membrane protein complex membrane plasma membrane membrane protein complex cellular anatomical entity transporter complex ATP-binding cassette (ABC) transporter complex cell periphery transmembrane transporter complex ATP-binding cassette (ABC) transporter complex, substrate-binding subunit-containing maltose transport complex periplasmic space ATPase dependent transmembrane transport complex protein-containing complex plasma membrane protein complex membrane plasma membrane membrane protein complex cellular anatomical entity transporter complex ATP-binding cassette (ABC) transporter complex cell periphery transmembrane transporter complex ATP-binding cassette (ABC) transporter complex, substrate-binding subunit-containing maltose transport complex periplasmic space outer membrane-bounded periplasmic space cell envelope membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen intracellular organelle organelle lumen organelle nuclear periphery nuclear lumen nuclear matrix nucleolus intracellular non-membrane-bounded organelle non-membrane-bounded organelle mitochondrial membrane mitochondrion organelle envelope mitochondrial envelope cytoplasm organelle membrane cytosol nucleoplasm vacuolar membrane lytic vacuole vacuole lytic vacuole membrane bounding membrane of organelle lysosomal membrane lysosome synapse cell junction inclusion body nuclear inclusion body mitochondrial matrix

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR006061	Solute-binding family 1, conserved site	Conserved Site
A, B	IPR006060	Maltose/Cyclodextrin ABC transporter, substrate-binding protein	Family
A, B	IPR006059	Bacterial-type extracellular solute-binding protein	Family
A, B	IPR033865	Machado-Joseph disease protein	Family
A, B	IPR006155	Josephin domain	Domain
A, B	IPR003903	Ubiquitin interacting motif	Conserved Site

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B	Pharos: P54252	Machado-Joseph disease Nerve Degeneration autosomal dominant cerebellar ataxia depressive disorder intellectual disability psoriasis hereditary ataxia Kennedy disease neurodegenerative disease dentatorubral-pallidoluysian atrophy Huntington disease late-onset Parkinson disease Parkinson disease

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.