2IZV

CRYSTAL STRUCTURE OF SOCS-4 IN COMPLEX WITH ELONGIN-B AND ELONGIN-C AT 2.55A 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
Pharos: Disease Associations

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d2izva1	All alpha proteins	SOCS box-like	SOCS box-like	SOCS box-like	Suppressor of cytokine signaling 4, SOCS-4	HUMAN (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
A	d2izva2	Alpha and beta proteins (a+b)	SH2-like	SH2 domain	SH2 domain	Suppressor of cytokine signaling 4, SOCS-4	HUMAN (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
A	d2izva3	Artifacts	Tags	Tags	Tags	N-terminal Tags	HUMAN (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
B	d2izvb_	Alpha and beta proteins (a+b)	beta-Grasp (ubiquitin-like)	Ubiquitin-like	Ubiquitin-related	automated matches	HUMAN (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
C	d2izvc_	Alpha and beta proteins (a+b)	POZ domain	POZ domain	BTB/POZ domain	Elongin C	HUMAN (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	SOCS box-like	8020805	4001182	SCOP2 (2022-06-29)
A	SCOP2 Family	SH2 domain	8020807	4001650	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	SOCS box-like	8033185	3001002	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	SH2 domain	8033187	3000197	SCOP2 (2022-06-29)
B	SCOP2B Superfamily	Ubiquitin-like	8038575	3000157	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	SOCS_box	e2izvA1	A: alpha arrays	X: SOCS box-like (From Topology)	H: SOCS box-like (From Topology)	T: SOCS box-like	F: SOCS_box	ECOD (1.6)
A	SH2	e2izvA2	A: a+b two layers	X: SH2 (From Topology)	H: SH2 (From Topology)	T: SH2	F: SH2	ECOD (1.6)
B	ubiquitin_2	e2izvB1	A: a+b two layers	X: beta-Grasp	H: Ubiquitin-related	T: Ubiquitin-like	F: ubiquitin_2	ECOD (1.6)
C	Skp1_POZ_1	e2izvC1	A: a+b two layers	X: POZ domain (From Topology)	H: POZ domain (From Topology)	T: POZ domain	F: Skp1_POZ_1	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.30.505.10	Alpha Beta	2-Layer Sandwich	SHC Adaptor Protein	SH2 domain	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)
C	3.30.710.10	Alpha Beta	2-Layer Sandwich	Potassium Channel Kv1.1	Chain A	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF00017	SH2 domain (SH2)	SH2 domain	-	Domain
A	PF07525	SOCS box (SOCS_box)	SOCS box	The SOCS box acts as a bridge between specific substrate- binding domains and more generic proteins that comprise a large family of E3 ubiquitin protein ligases.	Domain
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
C	PF03931	Skp1 family, tetramerisation domain (Skp1_POZ)	Skp1 family, tetramerisation domain	-	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	SUPPRESSOR OF CYTOKINE SIGNALING 4	enzyme regulator activity molecular function regulator activity 1-phosphatidylinositol-3-kinase regulator activity kinase regulator activity	cellular response to stimulus regulation of cellular process response to stimulus negative regulation of protein tyrosine kinase activity regulation of catalytic activity negative regulation of biological process negative regulation of catalytic activity regulation of signal transduction regulation of transferase activity negative regulation of cellular metabolic process cell surface receptor protein tyrosine kinase signaling pathway regulation of primary metabolic process cell communication negative regulation of kinase activity negative regulation of transferase activity cellular response to stimulus regulation of cellular process response to stimulus negative regulation of protein tyrosine kinase activity regulation of catalytic activity negative regulation of biological process negative regulation of catalytic activity regulation of signal transduction regulation of transferase activity negative regulation of cellular metabolic process cell surface receptor protein tyrosine kinase signaling pathway regulation of primary metabolic process cell communication negative regulation of kinase activity negative regulation of transferase activity regulation of phosphate metabolic process peptidyl-amino acid modification phosphate-containing compound metabolic process negative regulation of protein modification process epidermal growth factor receptor signaling pathway signal transduction protein modification process phosphorus metabolic process negative regulation of protein metabolic process regulation of biological process regulation of ERBB signaling pathway protein phosphorylation phosphorylation cellular metabolic process regulation of protein metabolic process negative regulation of metabolic process primary metabolic process regulation of cellular metabolic process regulation of molecular function regulation of protein tyrosine kinase activity regulation of kinase activity regulation of response to stimulus negative regulation of protein phosphorylation negative regulation of epidermal growth factor receptor signaling pathway ERBB signaling pathway macromolecule modification metabolic process regulation of phosphorus metabolic process macromolecule metabolic process regulation of metabolic process regulation of protein modification process regulation of protein phosphorylation signaling negative regulation of signaling regulation of epidermal growth factor-activated receptor activity regulation of signaling receptor activity negative regulation of ERBB signaling pathway negative regulation of phosphate metabolic process peptidyl-tyrosine modification negative regulation of cell communication regulation of epidermal growth factor receptor signaling pathway negative regulation of cellular process protein metabolic process enzyme-linked receptor protein signaling pathway negative regulation of macromolecule metabolic process negative regulation of peptidyl-tyrosine phosphorylation regulation of signaling cell surface receptor signaling pathway negative regulation of response to stimulus regulation of peptidyl-tyrosine phosphorylation biological regulation negative regulation of molecular function regulation of macromolecule metabolic process regulation of protein kinase activity negative regulation of protein kinase activity negative regulation of epidermal growth factor-activated receptor activity negative regulation of signal transduction negative regulation of phosphorus metabolic process regulation of cell communication cellular process regulation of phosphorylation negative regulation of phosphorylation peptidyl-tyrosine phosphorylation negative regulation of signaling receptor activity phosphatidylinositol metabolic process glycerophospholipid biosynthetic process cellular biosynthetic process glycerophospholipid metabolic process lipid biosynthetic process phosphatidylinositol phosphate biosynthetic process phospholipid biosynthetic process phosphatidylinositol biosynthetic process phospholipid metabolic process biosynthetic process glycerolipid biosynthetic process organophosphate metabolic process organophosphate biosynthetic process cellular lipid metabolic process glycerolipid metabolic process lipid metabolic process intracellular signal transduction positive regulation of proteasomal protein catabolic process catabolic process positive regulation of protein metabolic process proteolysis involved in protein catabolic process positive regulation of biological process proteasome-mediated ubiquitin-dependent protein catabolic process macromolecule catabolic process regulation of ubiquitin-dependent protein catabolic 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 proteasomal protein catabolic process protein catabolic process regulation of catabolic process positive regulation of protein catabolic process positive regulation of proteolysis involved in protein catabolic process positive regulation of catabolic process regulation of proteasomal ubiquitin-dependent protein catabolic process modification-dependent protein catabolic process positive regulation of proteolysis regulation of proteasomal protein catabolic process positive regulation of proteasomal ubiquitin-dependent protein catabolic process ubiquitin-dependent protein catabolic process regulation of protein catabolic process protein ubiquitination post-translational protein modification protein modification by small protein conjugation protein modification by small protein conjugation or removal	phosphatidylinositol 3-kinase complex transferase complex, transferring phosphorus-containing groups protein-containing complex catalytic complex membrane membrane protein complex cellular anatomical entity transferase complex extrinsic component of membrane
B	TRANSCRIPTION ELONGATION FACTOR B POLYPEPTIDE 2	transcription factor binding transcription coregulator binding transcription corepressor binding protein binding binding ubiquitin protein ligase binding ubiquitin-like protein ligase binding enzyme binding	cellular component organization cellular component biogenesis cellular component assembly protein-containing complex organization protein-containing complex assembly cellular process cellular component organization or biogenesis regulation of cellular process negative regulation of biological process positive regulation of macromolecule biosynthetic process negative regulation of cellular metabolic process nucleobase-containing compound metabolic process post-transcriptional regulation of gene expression positive regulation of metabolic process cellular component organization cellular component biogenesis cellular component assembly protein-containing complex organization protein-containing complex assembly cellular process cellular component organization or biogenesis regulation of cellular process negative regulation of biological process positive regulation of macromolecule biosynthetic process negative regulation of cellular metabolic process nucleobase-containing compound metabolic process post-transcriptional regulation of gene expression positive regulation of metabolic process positive regulation of macromolecule metabolic process miRNA metabolic process RNA catabolic process regulation of biological process cellular metabolic process negative regulation of metabolic process regulation of cellular metabolic process primary metabolic process negative regulation of cellular biosynthetic process nucleobase-containing compound catabolic process miRNA-mediated post-transcriptional gene silencing regulation of gene expression negative regulation of gene expression biosynthetic process negative regulation of miRNA-mediated gene silencing negative regulation of macromolecule biosynthetic process post-transcriptional gene silencing nucleic acid catabolic process regulation of macromolecule biosynthetic process metabolic process macromolecule metabolic process negative regulation of post-transcriptional gene silencing regulation of metabolic process catabolic process cellular biosynthetic process positive regulation of biological process RNA metabolic process positive regulation of cellular metabolic process regulation of miRNA-mediated gene silencing macromolecule catabolic process negative regulation of post-transcriptional gene silencing by regulatory ncRNA regulation of gene silencing by regulatory ncRNA positive regulation of biosynthetic process negative regulation of cellular process regulation of post-transcriptional gene silencing by regulatory ncRNA positive regulation of cellular process negative regulation of macromolecule metabolic process regulation of biosynthetic process negative regulation of gene silencing by regulatory ncRNA biological regulation regulation of macromolecule metabolic process miRNA catabolic process gene expression macromolecule biosynthetic process regulatory ncRNA-mediated post-transcriptional gene silencing nucleic acid metabolic process target-directed miRNA degradation regulatory ncRNA-mediated gene silencing regulation of cellular biosynthetic process regulation of post-transcriptional gene silencing negative regulation of biosynthetic process positive regulation of gene expression positive regulation of cellular biosynthetic process nucleobase-containing compound biosynthetic process DNA-templated transcription initiation RNA biosynthetic process DNA-templated transcription nucleic acid biosynthetic process transcription by RNA polymerase II transcription initiation at RNA polymerase II promoter transcription elongation by RNA polymerase II DNA-templated transcription elongation positive regulation of proteasomal protein catabolic process positive regulation of protein metabolic process proteolysis involved in protein catabolic process proteasome-mediated ubiquitin-dependent protein catabolic process regulation of ubiquitin-dependent protein catabolic process regulation of primary 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 protein metabolic process regulation of protein metabolic process proteasomal protein catabolic process protein catabolic process regulation of catabolic process positive regulation of protein catabolic process positive regulation of proteolysis involved in protein catabolic process positive regulation of catabolic process regulation of proteasomal ubiquitin-dependent protein catabolic process modification-dependent protein catabolic process positive regulation of proteolysis regulation of proteasomal protein catabolic process positive regulation of proteasomal ubiquitin-dependent protein catabolic process ubiquitin-dependent protein catabolic process regulation of protein catabolic process 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	membrane-bounded organelle protein-containing complex intracellular anatomical structure transcription elongation factor complex nucleus membrane-enclosed lumen nuclear protein-containing complex intracellular membrane-bounded organelle cellular anatomical entity elongin complex intracellular organelle lumen intracellular organelle nucleoplasm organelle lumen membrane-bounded organelle protein-containing complex intracellular anatomical structure transcription elongation factor complex nucleus membrane-enclosed lumen nuclear protein-containing complex intracellular membrane-bounded organelle cellular anatomical entity elongin complex intracellular organelle lumen intracellular organelle nucleoplasm organelle lumen organelle nuclear lumen cytoplasm cytosol cytoplasmic ubiquitin ligase complex ubiquitin ligase complex catalytic complex transferase complex intracellular protein-containing complex VCB complex cullin-RING ubiquitin ligase complex Cul5-RING ubiquitin ligase complex Cul2-RING ubiquitin ligase complex
C	TRANSCRIPTION ELONGATION FACTOR B POLYPEPTIDE 1	transcription factor binding transcription coregulator binding transcription corepressor binding protein binding binding protein-macromolecule adaptor activity molecular adaptor activity	catabolic process proteolysis involved in protein catabolic process primary metabolic process protein catabolic process macromolecule catabolic process modification-dependent macromolecule catabolic process modification-dependent protein catabolic process proteolysis ubiquitin-dependent protein catabolic process metabolic process protein metabolic process macromolecule metabolic process regulation of cellular process negative regulation of biological process catabolic process proteolysis involved in protein catabolic process primary metabolic process protein catabolic process macromolecule catabolic process modification-dependent macromolecule catabolic process modification-dependent protein catabolic process proteolysis ubiquitin-dependent protein catabolic process metabolic process protein metabolic process macromolecule metabolic process regulation of cellular process negative regulation of biological process positive regulation of macromolecule biosynthetic process negative regulation of cellular metabolic process nucleobase-containing compound metabolic process post-transcriptional regulation of gene expression positive regulation of metabolic process positive regulation of macromolecule metabolic process miRNA metabolic process RNA catabolic process regulation of biological process cellular metabolic process negative regulation of metabolic process regulation of cellular metabolic process negative regulation of cellular biosynthetic process nucleobase-containing compound catabolic process miRNA-mediated post-transcriptional gene silencing regulation of gene expression negative regulation of gene expression biosynthetic process negative regulation of miRNA-mediated gene silencing negative regulation of macromolecule biosynthetic process post-transcriptional gene silencing nucleic acid catabolic process regulation of macromolecule biosynthetic process negative regulation of post-transcriptional gene silencing regulation of metabolic process cellular biosynthetic process positive regulation of biological process RNA metabolic process positive regulation of cellular metabolic process regulation of miRNA-mediated gene silencing negative regulation of post-transcriptional gene silencing by regulatory ncRNA regulation of gene silencing by regulatory ncRNA positive regulation of biosynthetic process negative regulation of cellular process regulation of post-transcriptional gene silencing by regulatory ncRNA positive regulation of cellular process negative regulation of macromolecule metabolic process regulation of biosynthetic process negative regulation of gene silencing by regulatory ncRNA biological regulation regulation of macromolecule metabolic process miRNA catabolic process gene expression macromolecule biosynthetic process regulatory ncRNA-mediated post-transcriptional gene silencing nucleic acid metabolic process target-directed miRNA degradation regulatory ncRNA-mediated gene silencing regulation of cellular biosynthetic process regulation of post-transcriptional gene silencing negative regulation of biosynthetic process positive regulation of gene expression cellular process positive regulation of cellular biosynthetic process nucleobase-containing compound biosynthetic process DNA-templated transcription initiation RNA biosynthetic process DNA-templated transcription nucleic acid biosynthetic process transcription by RNA polymerase II transcription initiation at RNA polymerase II promoter regulation of primary metabolic process regulation of RNA metabolic process regulation of nucleobase-containing compound metabolic process regulation of RNA biosynthetic process regulation of transcription by RNA polymerase II regulation of DNA-templated transcription 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	membrane-bounded organelle protein-containing complex intracellular anatomical structure transcription elongation factor complex nucleus membrane-enclosed lumen nuclear protein-containing complex intracellular membrane-bounded organelle cellular anatomical entity elongin complex intracellular organelle lumen intracellular organelle nucleoplasm organelle lumen membrane-bounded organelle protein-containing complex intracellular anatomical structure transcription elongation factor complex nucleus membrane-enclosed lumen nuclear protein-containing complex intracellular membrane-bounded organelle cellular anatomical entity elongin complex intracellular organelle lumen intracellular organelle nucleoplasm organelle lumen organelle nuclear lumen cytoplasm cytosol cullin-RING ubiquitin ligase complex ubiquitin ligase complex catalytic complex transferase complex intracellular protein-containing complex Cul5-RING ubiquitin ligase complex Cul2-RING ubiquitin ligase complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR036860	SH2 domain superfamily	Homologous Superfamily
A	IPR037342	SOCS4, SOCS box domain	Domain
A	IPR036036	SOCS box-like domain superfamily	Homologous Superfamily
A	IPR000980	SH2 domain	Domain
A	IPR001496	SOCS box domain	Domain
A	IPR022252	SOCS4/SOCS5 domain	Domain
A	IPR035864	SOCS4, SH2 domain	Domain
B	IPR000626	Ubiquitin-like domain	Domain
B	IPR039049	Elongin B	Family
B	IPR029071	Ubiquitin-like domain superfamily	Homologous Superfamily
C	IPR016073	SKP1 component, POZ domain	Domain
C	IPR001232	S-phase kinase-associated protein 1-like	Family
C	IPR039948	Elongin-C	Family
C	IPR011333	SKP1/BTB/POZ domain superfamily	Homologous Superfamily

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	Pharos: Q8WXH5	atypical teratoid rhabdoid tumor juvenile dermatomyositis ovarian cancer Condition, Preneoplastic large cell medulloblastoma precancerous condition glioblastoma medulloblastoma
B	Pharos: Q15370	acute myeloid leukemia ovarian cancer diabetes mellitus plasma cell myeloma lymphoplasmacytic lymphoma
C	Pharos: Q15369	papillary renal cell carcinoma sarcomatoid renal cell carcinoma collecting duct carcinoma chromophobe renal cell carcinoma renal cell carcinoma astrocytic tumor clear cell renal carcinoma dermatomyositis breast cancer invasive ductal breast carcinoma plasma cell myeloma Conventional (Clear Cell) Renal Cell Carcinoma ovarian cancer

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.