Annotations: 9SQ5

Cryo-EM structure of the DDB1deltaB-CRBN-Pomalidomide complex bound to IKZF1(ZF1-ZF2-Helix)

External Resource: Annotation

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

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
C	Isoform Ik7 of DNA-binding protein Ikaros	DNA binding binding nucleic acid binding protein binding protein domain specific binding sequence-specific DNA binding double-stranded DNA binding RNA polymerase II transcription regulatory region sequence-specific DNA binding cis-regulatory region sequence-specific DNA binding sequence-specific double-stranded DNA binding transcription cis-regulatory region binding transcription regulatory region nucleic acid binding RNA polymerase II cis-regulatory region sequence-specific DNA binding transcription regulator activity DNA binding binding nucleic acid binding protein binding protein domain specific binding sequence-specific DNA binding double-stranded DNA binding RNA polymerase II transcription regulatory region sequence-specific DNA binding cis-regulatory region sequence-specific DNA binding sequence-specific double-stranded DNA binding transcription cis-regulatory region binding transcription regulatory region nucleic acid binding RNA polymerase II cis-regulatory region sequence-specific DNA binding transcription regulator activity DNA-binding transcription factor activity cation binding transition metal ion binding zinc ion binding ion binding metal ion binding small molecule binding identical protein binding	regulation of cellular process negative regulation of biological process RNA metabolic process regulation of primary metabolic process negative regulation of RNA biosynthetic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription nucleic acid biosynthetic process regulation of RNA metabolic process negative regulation of cellular process negative regulation of nucleobase-containing compound metabolic process regulation of nucleobase-containing compound metabolic process regulation of RNA biosynthetic process regulation of cellular process negative regulation of biological process RNA metabolic process regulation of primary metabolic process negative regulation of RNA biosynthetic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription nucleic acid biosynthetic process regulation of RNA metabolic process negative regulation of cellular process negative regulation of nucleobase-containing compound metabolic process regulation of nucleobase-containing compound metabolic process regulation of RNA biosynthetic process negative regulation of macromolecule metabolic process regulation of biosynthetic process negative regulation of DNA-templated transcription regulation of biological process negative regulation of metabolic process biological regulation primary metabolic process regulation of macromolecule metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process regulation of gene expression biosynthetic process negative regulation of biosynthetic process negative regulation of macromolecule biosynthetic process metabolic process cellular process regulation of macromolecule biosynthetic process macromolecule metabolic process regulation of DNA-templated transcription regulation of metabolic process negative regulation of RNA metabolic process developmental process multicellular organismal process cellular developmental process hemopoiesis cell activation cell development mononuclear cell differentiation lymphocyte differentiation lymphocyte activation leukocyte activation cell differentiation immune system process anatomical structure development leukocyte differentiation tissue development mesoderm development homeostatic process erythrocyte differentiation multicellular organismal-level homeostasis myeloid cell differentiation homeostasis of number of cells myeloid cell homeostasis erythrocyte homeostasis transcription by RNA polymerase II regulation of transcription by RNA polymerase II cellular component organization chromatin organization cellular component organization or biogenesis	cellular anatomical structure intracellular anatomical structure cytoplasm membrane-bounded organelle nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen intracellular organelle nucleoplasm organelle lumen organelle nuclear lumen protein-containing complex cellular anatomical structure intracellular anatomical structure cytoplasm membrane-bounded organelle nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen intracellular organelle nucleoplasm organelle lumen organelle nuclear lumen protein-containing complex pericentric heterochromatin intracellular membraneless organelle chromatin chromosome heterochromatin chromosomal region membraneless organelle chromosome, centromeric region
B	Protein cereblon	protein binding binding transmembrane transporter binding cation binding ion binding metal ion binding small molecule binding	regulation of localization regulation of biological process regulation of cellular process transport regulation of transport negative regulation of monoatomic ion transport regulation of monoatomic ion transport monoatomic ion transmembrane transport biological regulation negative regulation of biological process negative regulation of transport regulation of monoatomic ion transmembrane transport establishment of localization negative regulation of transmembrane transport transmembrane transport regulation of localization regulation of biological process regulation of cellular process transport regulation of transport negative regulation of monoatomic ion transport regulation of monoatomic ion transport monoatomic ion transmembrane transport biological regulation negative regulation of biological process negative regulation of transport regulation of monoatomic ion transmembrane transport establishment of localization negative regulation of transmembrane transport transmembrane transport localization regulation of transmembrane transport negative regulation of monoatomic ion transmembrane transport negative regulation of cellular process monoatomic ion transport cellular process developmental process multicellular organism development multicellular organismal process limb development appendage development anatomical structure development cellular response to stimulus positive regulation of cell communication positive regulation of signal transduction response to stimulus signaling positive regulation of biological process regulation of signal transduction cell communication positive regulation of response to stimulus positive regulation of Wnt signaling pathway signal transduction Wnt signaling pathway positive regulation of cellular process regulation of signaling cell surface receptor signaling pathway regulation of Wnt signaling pathway regulation of response to stimulus regulation of cell communication positive regulation of signaling positive regulation of cellular component organization regulation of cellular component organization protein-containing complex organization positive regulation of cellular component biogenesis regulation of cellular component biogenesis cellular component organization cellular component biogenesis positive regulation of protein-containing complex assembly regulation of protein-containing complex assembly cellular component assembly protein-containing complex assembly cellular component organization or biogenesis primary metabolic process protein ubiquitination macromolecule modification metabolic 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 negative regulation of cellular component organization negative regulation of protein-containing complex assembly 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 behavior locomotory behavior exploration behavior locomotory exploration behavior	cellular anatomical structure membrane intracellular anatomical structure cytoplasm cytosol perinuclear region of cytoplasm cullin-RING ubiquitin ligase complex protein-containing complex ubiquitin ligase complex catalytic complex Cul4-RING E3 ubiquitin ligase complex transferase complex intracellular protein-containing complex Cul4A-RING E3 ubiquitin ligase complex cellular anatomical structure membrane intracellular anatomical structure cytoplasm cytosol perinuclear region of cytoplasm cullin-RING ubiquitin ligase complex protein-containing complex ubiquitin ligase complex catalytic complex Cul4-RING E3 ubiquitin ligase complex transferase complex intracellular protein-containing complex Cul4A-RING E3 ubiquitin ligase complex membrane-bounded organelle intracellular organelle organelle nucleus intracellular membrane-bounded organelle
A	DNA damage-binding protein 1	protein complex scaffold activity ubiquitin ligase complex scaffold activity structural molecule activity protein-macromolecule adaptor activity molecular adaptor activity DNA binding binding nucleic acid binding protein-containing complex binding protein binding cullin family protein binding damaged DNA binding WD40-repeat domain binding protein domain specific binding	cellular response to stimulus cellular response to stress response to stimulus DNA damage response response to stress cellular process developmental process multicellular organismal process regulation of biological process regulation of developmental process biological regulation regulation of stem cell population maintenance regulation of multicellular organismal process maintenance of cell number cellular response to stimulus cellular response to stress response to stimulus DNA damage response response to stress cellular process developmental process multicellular organismal process regulation of biological process regulation of developmental process biological regulation regulation of stem cell population maintenance regulation of multicellular organismal process maintenance of cell number stem cell population maintenance spermatogenesis sexual reproduction reproductive process multicellular organismal reproductive process developmental process involved in reproduction male gamete generation gamete generation DNA-templated DNA replication DNA-templated DNA replication maintenance of fidelity primary metabolic process DNA metabolic process nucleic acid metabolic process nucleobase-containing compound metabolic process DNA replication metabolic process macromolecule metabolic process replication fork processing catabolic process proteasomal protein catabolic process protein catabolic process protein metabolic process macromolecule catabolic process cell population proliferation regulation of biosynthetic process regulation of cellular process epigenetic regulation of gene expression regulation of macromolecule metabolic process gene expression macromolecule biosynthetic process cellular component organization regulation of gene expression biosynthetic process chromatin organization chromatin remodeling regulation of macromolecule biosynthetic process cellular component organization or biogenesis regulation of metabolic process regulation of apoptotic process apoptotic process regulation of programmed cell death cell death programmed cell death 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 modification-dependent macromolecule catabolic process modification-dependent protein catabolic process ubiquitin-dependent protein catabolic process negative regulation of adipose tissue development connective tissue development adipose tissue development negative regulation of developmental process animal organ development negative regulation of biological process tissue development regulation of adipose tissue development anatomical structure development negative regulation of multicellular organismal process epigenetic programming of gene expression epigenetic programming in the zygotic pronuclei regulation of cell cycle phase transition regulation of cell cycle process 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 mitotic cell cycle phase transition cell cycle process DNA repair positive regulation of viral genome replication positive regulation of viral process positive regulation of biological process viral life cycle regulation of viral life cycle regulation of viral process viral genome replication viral process regulation of viral genome replication regulation of miRNA-mediated gene silencing post-transcriptional regulation of gene expression regulation of gene silencing by regulatory ncRNA negative regulation of cellular process regulation of post-transcriptional gene silencing by regulatory ncRNA negative regulation of macromolecule metabolic process negative regulation of metabolic process regulatory ncRNA-mediated post-transcriptional gene silencing regulatory ncRNA-mediated gene silencing miRNA-mediated post-transcriptional gene silencing negative regulation of gene expression regulation of post-transcriptional gene silencing negative regulation of biosynthetic process negative regulation of macromolecule biosynthetic process post-transcriptional gene silencing nucleotide-excision repair response to light stimulus cellular response to environmental stimulus cellular response to light stimulus cellular response to radiation response to UV UV-damage excision repair response to radiation response to abiotic stimulus cellular response to abiotic stimulus cellular response to UV monosaccharide metabolic process gluconeogenesis regulation of primary metabolic process positive regulation of metabolic process regulation of small molecule metabolic process positive regulation of biosynthetic process small molecule metabolic process regulation of carbohydrate metabolic process regulation of glucose metabolic process positive regulation of cellular process positive regulation of gluconeogenesis carbohydrate metabolic process small molecule biosynthetic process carbohydrate biosynthetic process hexose metabolic process monosaccharide biosynthetic process hexose biosynthetic process positive regulation of glucose metabolic process regulation of gluconeogenesis positive regulation of carbohydrate metabolic process regulation of carbohydrate biosynthetic process positive regulation of small molecule metabolic process glucose metabolic process rhythmic process circadian rhythm regulation of circadian rhythm positive regulation of protein metabolic process positive regulation of macromolecule metabolic process regulation of protein metabolic process regulation of catabolic process positive regulation of protein catabolic process positive regulation of catabolic process regulation of protein catabolic process regulation of cellular response to stress regulation of response to stimulus regulation of response to stress biological process involved in interspecies interaction between organisms biological process involved in interaction with symbiont biological process involved in symbiotic interaction regulation by virus of viral protein levels in host cell positive regulation by virus of viral protein levels in host cell regulation of biological quality proteasome-mediated ubiquitin-dependent protein catabolic process regulation of DNA-templated DNA replication initiation DNA replication initiation regulation of DNA-templated DNA replication regulation of nucleobase-containing compound metabolic process regulation of DNA replication regulation of DNA metabolic process exit from host cell viral release from host cell biological process involved in interaction with host regulation of cell population proliferation meiotic chromosome segregation microtubule cytoskeleton organization membraneless organelle assembly female gamete generation meiotic cell cycle process cellular component biogenesis cellular component assembly female meiotic nuclear division meiotic nuclear division chromosome segregation spindle organization organelle assembly organelle fission meiotic cell cycle meiotic spindle organization meiotic spindle assembly spindle assembly nuclear division organelle organization nuclear chromosome segregation microtubule-based process cytoskeleton organization spindle assembly involved in female meiosis regulation of embryonic development regulation of multicellular organismal development embryo development multicellular organism development autophagy regulation of autophagy process utilizing autophagic mechanism regulation of cytokinesis cytoskeleton-dependent cytokinesis mitotic cytokinesis cytokinesis regulation of cell division regulation of mitotic cytokinesis cell division regulation of leukocyte activation cell activation regulation of cell activation natural killer cell activation lymphocyte activation leukocyte activation immune system process regulation of immune system process regulation of natural killer cell activation regulation of lymphocyte activation	extracellular exosome membrane-bounded organelle extracellular vesicle cellular anatomical structure extracellular organelle extracellular region organelle vesicle extracellular membrane-bounded organelle intracellular anatomical structure cytoplasm intracellular organelle membraneless organelle intracellular membraneless organelle extracellular exosome membrane-bounded organelle extracellular vesicle cellular anatomical structure extracellular organelle extracellular region organelle vesicle extracellular membrane-bounded organelle intracellular anatomical structure cytoplasm intracellular organelle membraneless organelle intracellular membraneless organelle chromosome chromosome, telomeric region chromosomal region nucleus membrane-enclosed lumen intracellular membrane-bounded organelle nucleolus intracellular organelle lumen organelle lumen nuclear lumen cullin-RING ubiquitin ligase complex protein-containing complex ubiquitin ligase complex catalytic complex Cul4-RING E3 ubiquitin ligase complex transferase complex intracellular protein-containing complex Cul4A-RING E3 ubiquitin ligase complex nucleoplasm site of double-strand break site of DNA damage Cul4B-RING E3 ubiquitin ligase complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
C	IPR013087	Zinc finger C2H2-type	Domain
C	IPR036236	Zinc finger C2H2 superfamily	Homologous Superfamily
C	IPR050589	Ikaros C2H2-type zinc-finger	Family
B	IPR015947	PUA-like superfamily	Homologous Superfamily
B	IPR046336	Lon protease, N-terminal domain superfamily	Homologous Superfamily
B	IPR004910	Yippee/Mis18/Cereblon	Domain
B	IPR003111	Lon protease, N-terminal domain	Domain
B	IPR034750	CULT domain	Domain
A	IPR036322	WD40-repeat-containing domain superfamily	Homologous Superfamily
A	IPR058543	RSE1/DDB1/CPSF1, second beta-propeller	Domain
A	IPR004871	RSE1/DDB1/CPSF1, C-terminal	Domain
A	IPR050358	RSE1/DDB1/CPSF1	Family
A	IPR015943	WD40/YVTN repeat-like-containing domain superfamily	Homologous Superfamily
A	IPR018846	RSE1/DDB1/CPSF1, first beta-propeller	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
C	: Q13422	Stevens-Johnson syndrome ulcerative colitis common variable immunodeficiency systemic lupus erythematosus lymphoma Precursor B-Cell Lymphoblastic Leukemia-Lymphoma childhood acute lymphoblastic leukemia rheumatoid arthritis pancytopenia due to IKZF1 mutations lung carcinoma non-small cell lung carcinoma pancreatic intraductal papillary-mucinous carcinoma periodontitis breast cancer Crohn disease Stevens-Johnson syndrome ulcerative colitis common variable immunodeficiency systemic lupus erythematosus lymphoma Precursor B-Cell Lymphoblastic Leukemia-Lymphoma childhood acute lymphoblastic leukemia rheumatoid arthritis pancytopenia due to IKZF1 mutations lung carcinoma non-small cell lung carcinoma pancreatic intraductal papillary-mucinous carcinoma periodontitis breast cancer Crohn disease subependymal giant cell astrocytoma diffuse large B-cell lymphoma hematologic disease inflammatory bowel disease malignant glioma osteosarcoma pancreatic intraductal papillary-mucinous neoplasm acute lymphoblastic leukemia pilocytic astrocytoma Burkitt lymphoma Sjogren syndrome cutaneous lupus erythematosus digestive system neuroendocrine neoplasm hepatocellular carcinoma interstitial cystitis lung cancer lymphatic system disease medulloblastoma ovarian cancer B-cell acute lymphoblastic leukemia cancer congenital anemia glioblastoma
B	: Q96SW2	intellectual disability, autosomal recessive 2 plasma cell myeloma 3p- syndrome intellectual disability toxic or drug-related embryofetopathy central nervous system malformation Erythema nodosum leprosum mantle cell lymphoma non-small cell lung carcinoma follicular lymphoma large cell medulloblastoma marginal zone lymphoma osteosarcoma POEMS syndrome attention deficit hyperactivity disorder, inattentive type intellectual disability, autosomal recessive 2 plasma cell myeloma 3p- syndrome intellectual disability toxic or drug-related embryofetopathy central nervous system malformation Erythema nodosum leprosum mantle cell lymphoma non-small cell lung carcinoma follicular lymphoma large cell medulloblastoma marginal zone lymphoma osteosarcoma POEMS syndrome attention deficit hyperactivity disorder, inattentive type lung adenocarcinoma myelodysplastic syndrome ovarian cancer
A	: Q16531	Disease Exacerbation gastric cancer lung cancer xeroderma pigmentosum gastric neoplasm drug-induced liver injury hereditary diffuse gastric adenocarcinoma psoriasis

RCSB PDB is hosted by

RCSB PDB is a member of

RCSB Partners
Nucleic Acid Knowledgebase

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.

9SQ5 | pdb_00009sq5

Cryo-EM structure of the DDB1deltaB-CRBN-Pomalidomide complex bound to IKZF1(ZF1-ZF2-Helix)

External Resource: Annotation

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

InterPro: Protein Family Classification InterPro Database Homepage

Pharos: Disease Associations Pharos Homepage Annotation