3HU6 | pdb_00003hu6

Structures of SPOP-Substrate Complexes: Insights into Molecular Architectures of BTB-Cul3 Ubiquitin Ligases: SPOPMATHx/BTB/3-box-PucSBC1

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
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)
B	SCOP2B Superfamily	TRAF domain-like	8039223	3001027	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	TRAF domain-like	8039223	3001027	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)
B	MATH	e3hu6B3	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: TRAF domain-like (From Topology)	T: TRAF domain-like	F: MATH	ECOD (1.6)
B	BACK,BTB	e3hu6B1	A: a+b two layers	X: POZ domain (From Topology)	H: POZ domain (From Topology)	T: POZ domain	F: BACK,BTB	ECOD (1.6)
A	MATH	e3hu6A3	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: TRAF domain-like (From Topology)	T: TRAF domain-like	F: MATH	ECOD (1.6)
A	BACK,BTB	e3hu6A4	A: a+b two layers	X: POZ domain (From Topology)	H: POZ domain (From Topology)	T: POZ domain	F: BACK,BTB	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	2.60.210.10	Mainly Beta	Sandwich	Apoptosis, Tumor Necrosis Factor Receptor Associated Protein 2	Chain A	CATH (4.2.0)
B	3.30.710.10	Alpha Beta	2-Layer Sandwich	Potassium Channel Kv1.1	Chain A	CATH (4.2.0)
A	2.60.210.10	Mainly Beta	Sandwich	Apoptosis, Tumor Necrosis Factor Receptor Associated Protein 2	Chain A	CATH (4.2.0)
A	3.30.710.10	Alpha Beta	2-Layer Sandwich	Potassium Channel Kv1.1	Chain A	CATH (4.2.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF22486	MATH domain (MATH_2)	MATH domain	This motif has been called the Meprin And TRAF-Homology (MATH) domain.ED A0A835B747.1/23-123; A0A835B747.1/23-76;	Domain
A, B	PF24570	BPM/SPOP, BACK domain (BACK_BPM_SPOP)	BPM/SPOP, BACK domain	This entry represent the BACK domain present in BPM proteins from plants, SPOP from animals and related sequences. BPM proteins are part of the Cullin E3 ubiquitin ligase complexes playing a role as substrate-specific adaptors of CUL3-based E3 ligase ...	This entry represent the BACK domain present in BPM proteins from plants, SPOP from animals and related sequences. BPM proteins are part of the Cullin E3 ubiquitin ligase complexes playing a role as substrate-specific adaptors of CUL3-based E3 ligases in the ubiquitin-proteasome pathway [1,2]. They bind at least three families of transcription factors: ERF/AP2 class I, homeobox-leucine zipper and R2R3 MYB, playing an important role in plant flowering, seed development and abiotic stress response [1]. SPOP, also known as HIB homologue 1 or Roadkill homologue 1 in humans, is an adaptor protein that forms a complex with Cul3, cullin-RING-based BCR (BTB-CUL3-RBX1) E3 ubiquitin-protein ligase complex, and is involved in ubiquitination of BMI1, H2AFY, and the death-associated protein 6 (DAXX) [4-6]. This domain is involved in dimerization together with the BTB domain (Pfam:PF00651), resulting in linear higher-order oligomers [7].	Domain
A, B	PF00651	BTB/POZ domain (BTB)	BTB/POZ domain	The BTB (for BR-C, ttk and bab) [1] or POZ (for Pox virus and Zinc finger) [2] domain is present near the N-terminus of a fraction of zinc finger (Pfam:PF00096) proteins and in proteins that contain the Pfam:PF01344 motif such as Kelch and a family o ...	The BTB (for BR-C, ttk and bab) [1] or POZ (for Pox virus and Zinc finger) [2] domain is present near the N-terminus of a fraction of zinc finger (Pfam:PF00096) proteins and in proteins that contain the Pfam:PF01344 motif such as Kelch and a family of pox virus proteins. The BTB/POZ domain mediates homomeric dimerisation and in some instances heteromeric dimerisation [2]. The structure of the dimerised PLZF BTB/POZ domain has been solved and consists of a tightly intertwined homodimer. The central scaffolding of the protein is made up of a cluster of alpha-helices flanked by short beta-sheets at both the top and bottom of the molecule [3]. POZ domains from several zinc finger proteins have been shown to mediate transcriptional repression and to interact with components of histone deacetylase co-repressor complexes including N-CoR and SMRT [4,5,6]. The POZ or BTB domain is also known as BR-C/Ttk or ZiN.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
C, D	Puckered	phosphoric ester hydrolase activity phosphoprotein phosphatase activity protein serine/threonine phosphatase activity catalytic activity, acting on a protein hydrolase activity, acting on ester bonds phosphatase activity hydrolase activity catalytic activity JUN kinase phosphatase activity protein tyrosine/serine/threonine phosphatase activity protein tyrosine/threonine phosphatase activity MAP kinase tyrosine phosphatase activity MAP kinase phosphatase activity protein tyrosine phosphatase activity phosphoric ester hydrolase activity phosphoprotein phosphatase activity protein serine/threonine phosphatase activity catalytic activity, acting on a protein hydrolase activity, acting on ester bonds phosphatase activity hydrolase activity catalytic activity JUN kinase phosphatase activity protein tyrosine/serine/threonine phosphatase activity protein tyrosine/threonine phosphatase activity MAP kinase tyrosine phosphatase activity MAP kinase phosphatase activity protein tyrosine phosphatase activity MAP kinase tyrosine/serine/threonine phosphatase activity	regulation of biological process response to stimulus immune response biological regulation positive regulation of biological process positive regulation of response to stimulus positive regulation of immune response regulation of response to stimulus immune system process regulation of immune response regulation of immune system process positive regulation of immune system process developmental process multicellular organismal process regulation of biological process response to stimulus immune response biological regulation positive regulation of biological process positive regulation of response to stimulus positive regulation of immune response regulation of response to stimulus immune system process regulation of immune response regulation of immune system process positive regulation of immune system process developmental process multicellular organismal process imaginal disc morphogenesis animal organ development instar larval or pupal development metamorphosis multicellular organism development anatomical structure morphogenesis instar larval or pupal morphogenesis imaginal disc development imaginal disc fusion, thorax closure post-embryonic animal morphogenesis anatomical structure development imaginal disc fusion post-embryonic development animal organ morphogenesis embryonic ectodermal digestive tract morphogenesis embryo development ectodermal digestive tract development embryonic ectodermal digestive tract development ectodermal digestive tract morphogenesis tube morphogenesis embryonic anterior midgut (ectodermal) morphogenesis embryonic organ development system development embryonic organ morphogenesis morphogenesis of embryonic epithelium epithelium development digestive system development tube development embryonic morphogenesis morphogenesis of an epithelium anterior midgut (ectodermal) morphogenesis tissue development embryonic digestive tract morphogenesis digestive tract development tissue morphogenesis digestive tract morphogenesis embryonic digestive tract development regulation of cellular process negative regulation of programmed cell death regulation of apoptotic process negative regulation of biological process regulation of programmed cell death cell death negative regulation of apoptotic process negative regulation of cellular process cellular process apoptotic process programmed cell death regulation of biosynthetic process regulation of macromolecule metabolic process gene expression macromolecule biosynthetic process positive regulation of macromolecule biosynthetic process regulation of gene expression positive regulation of metabolic process biosynthetic process positive regulation of gene expression positive regulation of biosynthetic process regulation of macromolecule biosynthetic process metabolic process positive regulation of macromolecule metabolic process macromolecule metabolic process regulation of metabolic process positive regulation of cellular process chorion micropyle formation reproductive process cellular component assembly involved in morphogenesis multicellular organismal reproductive process cellular process involved in reproduction in multicellular organism developmental process involved in reproduction egg chorion assembly cellular component organization cellular component biogenesis cellular anatomical entity morphogenesis cellular component assembly anatomical structure formation involved in morphogenesis cellular component organization or biogenesis external encapsulating structure organization epidermis development dorsal closure embryonic development via the syncytial blastoderm embryo development ending in birth or egg hatching organelle organization actin cytoskeleton organization actin filament-based process cytoskeleton organization cellular response to stimulus signaling signal transduction cell communication response to oxidative stress cellular response to chemical stimulus cellular response to stress response to stress response to chemical cellular response to oxidative stress cellular response to chemical stress pattern specification process regionalization determination of digestive tract left/right asymmetry determination of bilateral symmetry determination of left/right symmetry left/right pattern formation specification of symmetry sexual reproduction cellular developmental process oogenesis cell development female gamete generation epithelial cell differentiation gamete generation follicle cell of egg chamber development epithelial cell development cell differentiation germ cell development positive regulation of response to biotic stimulus pattern recognition receptor signaling pathway regulation of signal transduction response to biotic stimulus immune response-activating signaling pathway peptidoglycan recognition protein signaling pathway response to bacterium innate immune response-activating signaling pathway response to other organism regulation of peptidoglycan recognition protein signaling pathway regulation of innate immune response response to external stimulus negative regulation of defense response to bacterium defense response to other organism negative regulation of response to external stimulus regulation of pattern recognition receptor signaling pathway positive regulation of defense response negative regulation of defense response activation of innate immune response activation of immune response regulation of defense response regulation of response to biotic stimulus biological process involved in interspecies interaction between organisms regulation of response to external stimulus negative regulation of response to biotic stimulus negative regulation of signaling negative regulation of cell communication defense response to bacterium positive regulation of response to external stimulus negative regulation of peptidoglycan recognition protein signaling pathway immune response-regulating signaling pathway regulation of response to stress innate immune response response to external biotic stimulus regulation of defense response to bacterium regulation of signaling positive regulation of innate immune response defense response negative regulation of response to stimulus defense response to symbiont negative regulation of signal transduction negative regulation of immune system process regulation of cell communication negative regulation of intracellular signal transduction intracellular signal transduction regulation of intracellular signal transduction intracellular signaling cassette regulation of MAPK cascade MAPK cascade negative regulation of MAPK cascade determination of adult lifespan chitin-based embryonic cuticle biosynthetic process chitin-based cuticle development cuticle development imaginal disc eversion regulation of cellular response to stress regulation of stress-activated protein kinase signaling cascade stress-activated protein kinase signaling cascade negative regulation of stress-activated protein kinase signaling cascade dorsal appendage formation JNK cascade positive regulation of locomotion regulation of cell motility positive regulation of cell migration positive regulation of epithelial cell migration tissue migration ameboidal-type cell migration positive regulation of cell motility regulation of cell migration cell migration regulation of multicellular organismal process epithelial cell migration cell motility regulation of epithelial cell migration locomotion positive regulation of border follicle cell migration regulation of border follicle cell migration follicle cell of egg chamber migration epithelium migration border follicle cell migration regulation of locomotion wound healing response to wounding cell cycle G2/M phase transition regulation of cell cycle phase transition regulation of G2/M transition of mitotic cell cycle regulation of cell cycle process G2/M transition of mitotic cell cycle regulation of cell cycle G2/M phase transition cell cycle phase transition mitotic cell cycle regulation of mitotic cell cycle phase transition regulation of mitotic cell cycle mitotic cell cycle process cell cycle regulation of cell cycle cell cycle process mitotic cell cycle phase transition establishment of protein localization nitrogen compound transport transport secretion establishment of protein localization to extracellular region export from cell protein secretion establishment of localization protein localization to extracellular region localization secretion by cell protein transport macromolecule localization intracellular protein localization sensory organ development eye development visual system development compound eye development sensory system development male genitalia morphogenesis male anatomical structure morphogenesis sex differentiation genital disc development male sex differentiation reproductive structure development male genitalia development genitalia morphogenesis genitalia development reproductive system development post-embryonic genitalia morphogenesis imaginal disc-derived male genitalia morphogenesis genital disc morphogenesis imaginal disc-derived male genitalia development imaginal disc-derived genitalia development imaginal disc-derived genitalia morphogenesis response to cytokine cytokine-mediated signaling pathway cellular response to tumor necrosis factor tumor necrosis factor-mediated signaling pathway cellular response to cytokine stimulus cell surface receptor signaling pathway regulation of tumor necrosis factor-mediated signaling pathway regulation of cytokine-mediated signaling pathway negative regulation of tumor necrosis factor-mediated signaling pathway response to peptide regulation of response to cytokine stimulus negative regulation of response to cytokine stimulus negative regulation of cytokine-mediated signaling pathway response to tumor necrosis factor	cellular anatomical structure intracellular anatomical structure cytoplasm cytosol membrane-bounded organelle intracellular organelle Golgi apparatus organelle intracellular membrane-bounded organelle endomembrane system endoplasmic reticulum
A, B	Speckle-type POZ protein	molecular function inhibitor activity molecular function regulator activity ubiquitin protein ligase binding protein binding binding ubiquitin-like protein ligase binding enzyme binding identical protein binding	protein polyubiquitination primary metabolic process protein ubiquitination macromolecule modification metabolic process cellular process protein metabolic process macromolecule metabolic process post-translational protein modification protein modification process protein modification by small protein conjugation protein modification by small protein conjugation or removal regulation of biological process regulation of cellular process protein polyubiquitination primary metabolic process protein ubiquitination macromolecule modification metabolic process cellular process protein metabolic process macromolecule metabolic process post-translational protein modification protein modification process protein modification by small protein conjugation protein modification by small protein conjugation or removal regulation of biological process regulation of cellular process regulation of protein metabolic process biological regulation regulation of macromolecule metabolic process regulation of primary metabolic process regulation of proteolysis proteolysis regulation of metabolic process catabolic process proteolysis involved in protein catabolic process proteasomal protein catabolic process protein catabolic process proteasome-mediated ubiquitin-dependent protein catabolic process macromolecule catabolic process modification-dependent macromolecule catabolic process modification-dependent protein catabolic process ubiquitin-dependent protein catabolic process	membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membraneless organelle intracellular membrane-bounded organelle intracellular organelle lumen nuclear speck ribonucleoprotein granule intracellular organelle nuclear body cellular anatomical structure nucleoplasm organelle lumen membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membraneless organelle intracellular membrane-bounded organelle intracellular organelle lumen nuclear speck ribonucleoprotein granule intracellular organelle nuclear body cellular anatomical structure nucleoplasm organelle lumen organelle membraneless organelle supramolecular complex nuclear ribonucleoprotein granule nuclear lumen cullin-RING ubiquitin ligase complex protein-containing complex ubiquitin ligase complex catalytic complex transferase complex Cul3-RING ubiquitin ligase complex intracellular protein-containing complex cytoplasm

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
C, D	IPR000340	Dual specificity phosphatase, catalytic domain	Domain
C, D	IPR016130	Protein-tyrosine phosphatase, active site	Active Site
C, D	IPR029021	Protein-tyrosine phosphatase-like	Homologous Superfamily
C, D	IPR000387	Tyrosine-specific protein phosphatases domain	Domain
C, D	IPR020422	Dual specificity protein phosphatase domain	Domain
A, B	IPR056423	BPM/SPOP, BACK domain	Domain
A, B	IPR000210	BTB/POZ domain	Domain
A, B	IPR034089	SPOP, C-terminal BACK domain	Domain
A, B	IPR008974	TRAF-like	Homologous Superfamily
A, B	IPR011333	SKP1/BTB/POZ domain superfamily	Homologous Superfamily
A, B	IPR002083	MATH/TRAF domain	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B	Pharos: O43791	endometrial carcinoma prostate cancer atypical teratoid rhabdoid tumor familial prostate carcinoma malignant colon neoplasm ovarian cancer Prostatic Neoplasms breast carcinoma glioblastoma prostate adenocarcinoma psoriasis endometrial cancer endometrium carcinoma in situ large cell medulloblastoma osteosarcoma

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.