Annotations: 1IAR

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1iara_	All alpha proteins	4-helical cytokines	4-helical cytokines	Short-chain cytokines	Interleukin-4 (IL-4)	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
B	d1iarb1	All beta proteins	Immunoglobulin-like beta-sandwich	Fibronectin type III	Fibronectin type III	Interleukin-4 receptor alpha chain	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	SCOP2B Superfamily	4-helical cytokines	8037758	3001717	SCOP2B (2022-06-29)
B	SCOP2 Family	Fibronectin type III	8055134	4007555	SCOP2 (2022-06-29)
B	SCOP2 Family	Fibronectin type III	8055518	4007555	SCOP2 (2022-06-29)
B	SCOP2 Superfamily	Fibronectin type III	8055135	3002063	SCOP2 (2022-06-29)
B	SCOP2 Superfamily	Fibronectin type III	8055519	3002063	SCOP2 (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	IL4	e1iarA1	A: alpha bundles	X: Ferritin/Heme oxygenase/4-helical cytokines	H: 4-helical cytokines (From Topology)	T: 4-helical cytokines	F: IL4	ECOD (1.6)
B	IL4Ra_N	e1iarB1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: IL4Ra_N	ECOD (1.6)
B	fn3_6	e1iarB2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: fn3_6	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.20.1250.10	Mainly Alpha	Up-down Bundle	Growth Hormone	Chain: A	CATH (4.3.0)
B	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)

IMGT Antibody Annotation IMGT Database Homepage

Chain	Protein Name	Description	Organism Name	Gene Allele Name(s)	Domain Name(s)	Receptor Type	Receptor Description	Provenance Source
A	Interleukin-4	IL4	Homo sapiens (human)	IL4*01	R-LIKE-DOMAIN IL4 (Pr25-153)	RPI	IL4	IMGT (202507-0)
B	Interleukin-4 receptor subunit alpha	2F-DOMAIN	Homo sapiens (human)	IL4R*01	F-LIKE-DOMAIN F-DOMAIN	RPI	2F-DOMAIN	IMGT (202507-0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF00727	Interleukin 4 (IL4)	Interleukin 4		Domain
B	PF09238	Interleukin-4 receptor alpha chain, N-terminal (IL4Ra_N)	Interleukin-4 receptor alpha chain, N-terminal	Members of this family are related in overall topology to fibronectin type III modules and fold into a sandwich comprising seven antiparallel beta sheets arranged in a three-strand and a four-strand beta-pleated sheet. They are required for binding o ...	Members of this family are related in overall topology to fibronectin type III modules and fold into a sandwich comprising seven antiparallel beta sheets arranged in a three-strand and a four-strand beta-pleated sheet. They are required for binding of interleukin-4 to the receptor alpha chain, which is a crucial event for the generation of a Th2-dominated early immune response [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	PROTEIN (INTERLEUKIN-4)	protein binding binding signaling receptor binding cytokine receptor binding interleukin-4 receptor binding growth factor receptor binding molecular function activator activity molecular function regulator activity signaling receptor regulator activity growth factor activity receptor ligand activity signaling receptor activator activity cytokine activity	adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains response to stimulus regulation of leukocyte activation regulation of cell activation B cell activation involved in immune response positive regulation of macromolecule biosynthetic process regulation of primary metabolic process multicellular organism development positive regulation of immune response regulation of immune system process positive regulation of macromolecule metabolic process system development positive regulation of DNA recombination positive regulation of immunoglobulin mediated immune response adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains response to stimulus regulation of leukocyte activation regulation of cell activation B cell activation involved in immune response positive regulation of macromolecule biosynthetic process regulation of primary metabolic process multicellular organism development positive regulation of immune response regulation of immune system process positive regulation of macromolecule metabolic process system development positive regulation of DNA recombination positive regulation of immunoglobulin mediated immune response immune response DNA recombination primary metabolic process DNA metabolic process immune effector process regulation of gene expression biosynthetic process positive regulation of DNA metabolic process regulation of response to stimulus B cell mediated immunity positive regulation of production of molecular mediator of immune response regulation of macromolecule biosynthetic process metabolic process regulation of DNA metabolic process immunoglobulin production regulation of developmental process positive regulation of adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains somatic cell DNA recombination somatic diversification of immunoglobulins involved in immune response positive regulation of lymphocyte activation somatic recombination of immunoglobulin gene segments positive regulation of biosynthetic process regulation of immunoglobulin mediated immune response regulation of B cell activation leukocyte activation involved in immune response positive regulation of isotype switching positive regulation of immune effector process positive regulation of cellular process production of molecular mediator of immune response positive regulation of immunoglobulin production regulation of isotype switching cell activation regulation of macromolecule metabolic process macromolecule biosynthetic process nucleic acid metabolic process positive regulation of gene expression immune system process somatic diversification of immune receptors via germline recombination within a single locus cellular process regulation of lymphocyte activation lymphocyte mediated immunity regulation of immune effector process multicellular organismal process regulation of DNA recombination positive regulation of leukocyte mediated immunity regulation of cellular process cell activation involved in immune response nucleobase-containing compound metabolic process positive regulation of developmental process positive regulation of cell activation positive regulation of metabolic process anatomical structure development positive regulation of leukocyte activation leukocyte mediated immunity somatic diversification of immune receptors regulation of nucleobase-containing compound metabolic process positive regulation of adaptive immune response positive regulation of immune system process somatic recombination of immunoglobulin genes involved in immune response developmental process regulation of biological process positive regulation of nucleobase-containing compound metabolic process regulation of adaptive immune response regulation of B cell mediated immunity somatic diversification of immunoglobulins regulation of leukocyte mediated immunity regulation of immune response positive regulation of multicellular organismal process regulation of production of molecular mediator of immune response macromolecule metabolic process regulation of metabolic process isotype switching immune system development immunoglobulin production involved in immunoglobulin-mediated immune response positive regulation of lymphocyte mediated immunity positive regulation of biological process lymphocyte activation positive regulation of B cell mediated immunity leukocyte activation positive regulation of response to stimulus regulation of adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains positive regulation of isotype switching to IgG isotypes regulation of multicellular organismal process lymphocyte activation involved in immune response regulation of biosynthetic process B cell activation biological regulation gene expression adaptive immune response immunoglobulin mediated immune response positive regulation of B cell activation regulation of isotype switching to IgG isotypes regulation of lymphocyte mediated immunity regulation of immunoglobulin production isotype switching to IgG isotypes cellular response to growth factor stimulus negative regulation of response to stimulus regulation of cellular response to transforming growth factor beta stimulus cellular response to transforming growth factor beta stimulus response to endogenous stimulus regulation of cellular response to growth factor stimulus negative regulation of biological process negative regulation of cellular response to growth factor stimulus negative regulation of cellular response to transforming growth factor beta stimulus cellular response to endogenous stimulus response to transforming growth factor beta response to growth factor phosphorylation regulation of phosphate metabolic process phosphate-containing compound metabolic process regulation of phosphorylation regulation of phosphorus metabolic process phosphorus metabolic process regulation of tumor necrosis factor production negative regulation of tumor necrosis factor production cytokine production regulation of cytokine production negative regulation of cellular process negative regulation of macromolecule metabolic process negative regulation of metabolic process tumor necrosis factor superfamily cytokine production negative regulation of cytokine production tumor necrosis factor production negative regulation of gene expression regulation of tumor necrosis factor superfamily cytokine production negative regulation of biosynthetic process negative regulation of macromolecule biosynthetic process negative regulation of tumor necrosis factor superfamily cytokine production negative regulation of multicellular organismal process interleukin-13 production positive regulation of interleukin-13 production positive regulation of cytokine production regulation of interleukin-13 production regulation of defense response regulation of response to external stimulus negative regulation of inflammatory response defense response response to external stimulus regulation of inflammatory response response to stress negative regulation of response to external stimulus regulation of response to stress regulation of neuroinflammatory response negative regulation of defense response inflammatory response negative regulation of neuroinflammatory response neuroinflammatory response myeloid leukocyte differentiation regulation of leukocyte differentiation cellular developmental process cell development regulation of cell differentiation regulation of cell development regulation of osteoclast differentiation cell differentiation osteoclast differentiation negative regulation of cell differentiation negative regulation of hemopoiesis regulation of multicellular organismal development negative regulation of leukocyte differentiation hemopoiesis regulation of myeloid cell differentiation negative regulation of developmental process regulation of myeloid leukocyte differentiation negative regulation of myeloid cell differentiation negative regulation of osteoclast differentiation negative regulation of myeloid leukocyte differentiation negative regulation of cell development myeloid cell differentiation negative regulation of immune system process regulation of hemopoiesis leukocyte differentiation cellular response to stimulus cell surface receptor signaling pathway via STAT cell surface receptor signaling pathway signaling cell communication signal transduction cell surface receptor signaling pathway via JAK-STAT regulation of complement-dependent cytotoxicity negative regulation of complement-dependent cytotoxicity regulation of cell killing complement-dependent cytotoxicity negative regulation of cell killing cell killing negative regulation of locomotion regulation of cell motility tissue migration negative regulation of epithelial cell migration ameboidal-type cell migration regulation of cell migration cell migration epithelial cell migration cell motility regulation of epithelial cell migration locomotion negative regulation of cell migration epithelium migration regulation of locomotion negative regulation of cell motility regulation of localization import into cell positive regulation of cellular component organization regulation of cellular component organization transport vesicle-mediated transport cellular component organization localization positive regulation of endocytosis cellular component organization or biogenesis positive regulation of receptor-mediated endocytosis regulation of endocytosis regulation of transport regulation of receptor-mediated endocytosis regulation of vesicle-mediated transport establishment of localization positive regulation of transport endocytosis receptor-mediated endocytosis type 2 immune response interleukin-10 production regulation of interleukin-10 production positive regulation of interleukin-10 production dendritic cell differentiation mononuclear cell differentiation macrophage activation myeloid leukocyte activation nucleotide biosynthetic process carbohydrate derivative metabolic process purine ribonucleotide biosynthetic process positive regulation of phosphate metabolic process purine ribonucleoside triphosphate biosynthetic process positive regulation of nucleotide biosynthetic process regulation of nucleotide biosynthetic process regulation of ATP metabolic process ribonucleotide biosynthetic process purine nucleoside triphosphate biosynthetic process regulation of small molecule metabolic process positive regulation of purine nucleotide biosynthetic process regulation of nucleotide metabolic process small molecule metabolic process ribose phosphate biosynthetic process nucleoside phosphate metabolic process positive regulation of phosphorus metabolic process nucleotide metabolic process regulation of purine nucleotide metabolic process ribonucleoside triphosphate biosynthetic process positive regulation of ATP metabolic process organophosphate biosynthetic process nucleoside phosphate biosynthetic process nucleoside triphosphate metabolic process purine ribonucleotide metabolic process purine nucleotide biosynthetic process ribose phosphate metabolic process ATP metabolic process ATP biosynthetic process positive regulation of nucleotide metabolic process purine nucleotide metabolic process ribonucleotide metabolic process nucleobase-containing small molecule metabolic process purine ribonucleoside triphosphate metabolic process purine-containing compound biosynthetic process ribonucleoside triphosphate metabolic process purine nucleoside triphosphate metabolic process carbohydrate derivative biosynthetic process regulation of purine nucleotide biosynthetic process nucleoside triphosphate biosynthetic process nucleobase-containing compound biosynthetic process purine-containing compound metabolic process positive regulation of purine nucleotide metabolic process positive regulation of ATP biosynthetic process regulation of ATP biosynthetic process organophosphate metabolic process positive regulation of small molecule metabolic process positive regulation of cell population proliferation positive regulation of B cell proliferation leukocyte proliferation regulation of B cell proliferation lymphocyte proliferation positive regulation of mononuclear cell proliferation regulation of lymphocyte proliferation regulation of leukocyte proliferation cell population proliferation positive regulation of lymphocyte proliferation B cell proliferation regulation of cell population proliferation mononuclear cell proliferation positive regulation of leukocyte proliferation regulation of mononuclear cell proliferation RNA metabolic process negative regulation of RNA biosynthetic process RNA biosynthetic process DNA-templated transcription nucleic acid biosynthetic process regulation of RNA metabolic process transcription by RNA polymerase II negative regulation of nucleobase-containing compound metabolic process regulation of RNA biosynthetic process regulation of transcription by RNA polymerase II negative regulation of DNA-templated transcription negative regulation of transcription by RNA polymerase II regulation of DNA-templated transcription negative regulation of RNA metabolic process T cell activation positive regulation of T cell activation positive regulation of T cell proliferation regulation of leukocyte cell-cell adhesion positive regulation of leukocyte cell-cell adhesion leukocyte cell-cell adhesion positive regulation of cell-cell adhesion cell adhesion cell-cell adhesion regulation of cell-cell adhesion T cell proliferation positive regulation of cell adhesion regulation of cell adhesion regulation of T cell activation regulation of T cell proliferation positive regulation of DNA-templated transcription positive regulation of transcription by RNA polymerase II positive regulation of RNA metabolic process positive regulation of RNA biosynthetic process T cell mediated immunity T-helper 2 cell cytokine production T cell cytokine production regulation of T-helper 2 cell cytokine production regulation of type 2 immune response positive regulation of T cell cytokine production regulation of T cell mediated immunity regulation of cytokine production involved in immune response positive regulation of T-helper 2 cell cytokine production regulation of T cell cytokine production CD4-positive, alpha-beta T cell cytokine production cytokine production involved in immune response positive regulation of type 2 immune response positive regulation of T cell mediated immunity positive regulation of cytokine production involved in immune response lymphocyte differentiation B cell differentiation myeloid dendritic cell activation myeloid dendritic cell differentiation negative regulation of programmed cell death regulation of apoptotic process regulation of programmed cell death cell death negative regulation of apoptotic process apoptotic process programmed cell death positive regulation of amyloid-beta clearance amyloid-beta clearance regulation of amyloid-beta clearance regulation of isotype switching to IgE isotypes positive regulation of isotype switching to IgE isotypes isotype switching to IgE isotypes secondary alcohol metabolic process sterol metabolic process steroid metabolic process cholesterol metabolic process alcohol metabolic process lipid metabolic process interleukin-4-mediated signaling pathway response to cytokine cytokine-mediated signaling pathway response to peptide response to interleukin-4 response to chemical cellular response to cytokine stimulus cellular response to interleukin-4 homeostatic process adaptive thermogenesis multicellular organismal-level homeostasis regulation of cold-induced thermogenesis cold-induced thermogenesis temperature homeostasis positive regulation of cold-induced thermogenesis positive regulation of autophagy catabolic process macroautophagy autophagy regulation of catabolic process regulation of autophagy positive regulation of catabolic process regulation of macroautophagy positive regulation of macroautophagy process utilizing autophagic mechanism positive regulation of locomotion positive regulation of cell migration positive regulation of cell motility regulation of MHC class II biosynthetic process MHC class II biosynthetic process positive regulation of MHC class II biosynthetic process negative regulation of endothelial cell apoptotic process endothelial cell apoptotic process regulation of endothelial cell apoptotic process cellular respiration energy derivation by oxidation of organic compounds regulation of generation of precursor metabolites and energy generation of precursor metabolites and energy regulation of cellular respiration positive regulation of cellular respiration positive regulation of T cell differentiation T cell differentiation positive regulation of cell development regulation of T cell differentiation positive regulation of hemopoiesis positive regulation of cell differentiation regulation of lymphocyte differentiation positive regulation of leukocyte differentiation positive regulation of lymphocyte differentiation	cellular anatomical structure extracellular region extracellular space
B	PROTEIN (INTERLEUKIN-4 RECEPTOR ALPHA CHAIN)	molecular transducer activity transmembrane signaling receptor activity signaling receptor activity cytokine receptor activity immune receptor activity interleukin-4 receptor activity	production of molecular mediator involved in inflammatory response multicellular organismal process response to stimulus defense response response to stress inflammatory response cellular response to stimulus regulation of biological process regulation of cellular process cell surface receptor signaling pathway signaling biological regulation response to cytokine cytokine-mediated signaling pathway production of molecular mediator involved in inflammatory response multicellular organismal process response to stimulus defense response response to stress inflammatory response cellular response to stimulus regulation of biological process regulation of cellular process cell surface receptor signaling pathway signaling biological regulation response to cytokine cytokine-mediated signaling pathway cell communication response to peptide response to chemical cellular process cellular response to cytokine stimulus signal transduction adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains lymphocyte mediated immunity immune response immune system process B cell mediated immunity leukocyte mediated immunity immunoglobulin mediated immune response adaptive immune response immune effector process regulation of macrophage activation positive regulation of macrophage activation regulation of leukocyte activation cell activation positive regulation of biological process regulation of cell activation myeloid leukocyte activation leukocyte activation macrophage activation positive regulation of cell activation positive regulation of leukocyte activation positive regulation of multicellular organismal process regulation of immune system process regulation of multicellular organismal process positive regulation of immune system process positive regulation of cellular process establishment of organelle localization regulation of immune effector process regulation of localization regulated exocytosis regulation of myeloid leukocyte mediated immunity cell activation involved in immune response leukocyte degranulation myeloid leukocyte mediated immunity vesicle-mediated transport localization positive regulation of leukocyte degranulation positive regulation of regulated secretory pathway establishment of localization in cell positive regulation of mast cell degranulation vacuolar localization mast cell degranulation establishment of localization regulation of secretion regulation of leukocyte mediated immunity exocytosis lysosome localization cellular localization transport positive regulation of secretion by cell positive regulation of exocytosis regulation of mast cell degranulation regulation of regulated secretory pathway secretion by cell regulation of secretion by cell positive regulation of secretion organelle localization leukocyte activation involved in immune response mast cell activation positive regulation of immune effector process regulation of leukocyte degranulation mast cell mediated immunity secretion regulation of transport export from cell regulation of vesicle-mediated transport myeloid cell activation involved in immune response mast cell activation involved in immune response positive regulation of transport regulation of exocytosis regulation of alpha-beta T cell activation positive regulation of T cell differentiation alpha-beta T cell differentiation involved in immune response regulation of cell development multicellular organism development type 2 immune response positive regulation of immune response T cell activation cell differentiation regulation of type 2 immune response regulation of T-helper cell differentiation alpha-beta T cell activation positive regulation of CD4-positive, alpha-beta T cell differentiation T-helper cell differentiation positive regulation of cell development regulation of response to stimulus regulation of leukocyte cell-cell adhesion positive regulation of alpha-beta T cell differentiation regulation of developmental process cell development positive regulation of leukocyte cell-cell adhesion CD4-positive, alpha-beta T cell differentiation positive regulation of T-helper cell differentiation positive regulation of cell-cell adhesion regulation of T cell differentiation positive regulation of lymphocyte activation alpha-beta T cell differentiation T cell activation involved in immune response positive regulation of cell differentiation regulation of T-helper 2 cell differentiation regulation of cell-cell adhesion hemopoiesis regulation of cell adhesion positive regulation of T-helper 2 cell differentiation regulation of CD4-positive, alpha-beta T cell activation regulation of lymphocyte activation regulation of leukocyte differentiation mononuclear cell differentiation regulation of cell differentiation lymphocyte differentiation CD4-positive, alpha-beta T cell differentiation involved in immune response positive regulation of developmental process anatomical structure development T cell differentiation developmental process positive regulation of T cell activation positive regulation of alpha-beta T cell activation regulation of immune response leukocyte differentiation cellular developmental process regulation of CD4-positive, alpha-beta T cell differentiation regulation of alpha-beta T cell differentiation lymphocyte activation leukocyte cell-cell adhesion positive regulation of response to stimulus positive regulation of CD4-positive, alpha-beta T cell activation cell adhesion cell-cell adhesion alpha-beta T cell activation involved in immune response positive regulation of hemopoiesis CD4-positive, alpha-beta T cell activation T-helper 2 cell differentiation lymphocyte activation involved in immune response regulation of lymphocyte differentiation regulation of multicellular organismal development positive regulation of cell adhesion regulation of T cell activation T cell differentiation involved in immune response positive regulation of type 2 immune response regulation of hemopoiesis positive regulation of leukocyte differentiation positive regulation of lymphocyte differentiation T-helper 1 type immune response T-helper 1 cell differentiation biological process involved in interspecies interaction between organisms response to other organism defense response to protozoan response to external stimulus response to biotic stimulus response to protozoan defense response to other organism response to external biotic stimulus interleukin-4-mediated signaling pathway response to interleukin-4 cellular response to interleukin-4 homeostatic process adaptive thermogenesis positive regulation of metabolic process multicellular organismal-level homeostasis regulation of cold-induced thermogenesis cold-induced thermogenesis temperature homeostasis positive regulation of cold-induced thermogenesis metabolic process regulation of metabolic process positive regulation of macromolecule biosynthetic process positive regulation of biosynthetic process regulation of cytokine production cytokine production positive regulation of macromolecule metabolic process regulation of biosynthetic process regulation of macromolecule metabolic process gene expression macromolecule biosynthetic process regulation of chemokine production regulation of gene expression biosynthetic process positive regulation of gene expression chemokine production positive regulation of chemokine production regulation of macromolecule biosynthetic process macromolecule metabolic process positive regulation of cytokine production immunoglobulin production positive regulation of immunoglobulin production production of molecular mediator of immune response regulation of immunoglobulin production positive regulation of production of molecular mediator of immune response regulation of production of molecular mediator of immune response negative regulation of cell adhesion negative regulation of T cell differentiation negative regulation of leukocyte differentiation negative regulation of immune effector process regulation of T-helper 1 type immune response negative regulation of adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains negative regulation of T cell activation negative regulation of leukocyte cell-cell adhesion negative regulation of cell-cell adhesion regulation of T-helper 1 cell differentiation negative regulation of multicellular organismal process negative regulation of cell differentiation negative regulation of developmental process negative regulation of cell development negative regulation of T-helper 1 cell differentiation negative regulation of alpha-beta T cell activation negative regulation of biological process negative regulation of hemopoiesis negative regulation of T-helper 1 type immune response regulation of adaptive immune response negative regulation of immune response negative regulation of adaptive immune response negative regulation of CD4-positive, alpha-beta T cell activation negative regulation of lymphocyte differentiation negative regulation of CD4-positive, alpha-beta T cell differentiation negative regulation of leukocyte activation negative regulation of alpha-beta T cell differentiation negative regulation of lymphocyte activation regulation of adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains negative regulation of cellular process negative regulation of response to stimulus negative regulation of T-helper cell differentiation negative regulation of cell activation negative regulation of immune system process positive regulation of cellular component organization regulation of cellular component organization regulation of syncytium formation by plasma membrane fusion cell-cell fusion muscle cell differentiation myotube differentiation cellular component organization muscle structure development cellular component organization or biogenesis syncytium formation positive regulation of myoblast fusion myoblast fusion regulation of myoblast fusion positive regulation of syncytium formation by plasma membrane fusion syncytium formation by plasma membrane fusion anatomical structure morphogenesis anatomical structure formation involved in morphogenesis striated muscle cell differentiation	cell periphery cellular anatomical structure cell surface membrane plasma membrane external side of plasma membrane side of membrane intracellular anatomical structure intracellular membraneless organelle intracellular organelle centrosome microtubule organizing center cytoskeleton centriolar satellite cell periphery cellular anatomical structure cell surface membrane plasma membrane external side of plasma membrane side of membrane intracellular anatomical structure intracellular membraneless organelle intracellular organelle centrosome microtubule organizing center cytoskeleton centriolar satellite organelle membraneless organelle microtubule cytoskeleton membrane-bounded organelle nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen nucleoplasm organelle lumen nuclear lumen protein-containing complex receptor complex extracellular region

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR018096	Interleukin-4/interleukin-13, conserved site	Conserved Site
A	IPR001325	Interleukin-4/interleukin-13	Family
A	IPR002354	Interleukin-4	Family
A	IPR009079	Four-helical cytokine-like, core	Homologous Superfamily
B	IPR003531	Short hematopoietin receptor, family 1, conserved site	Conserved Site
B	IPR003961	Fibronectin type III	Domain
B	IPR015319	Interleukin-4 receptor alpha, N-terminal	Domain
B	IPR013783	Immunoglobulin-like fold	Homologous Superfamily
B	IPR036116	Fibronectin type III superfamily	Homologous Superfamily

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	Pharos: P05112	psoriasis allergic disease pneumonia autoimmune hepatitis adult T-cell leukemia/lymphoma asthma rhinitis cardiomyopathy autoimmune disease Drug Eruptions pleural disease cutaneous leishmaniasis pulmonary fibrosis bagassosis colitis psoriasis allergic disease pneumonia autoimmune hepatitis adult T-cell leukemia/lymphoma asthma rhinitis cardiomyopathy autoimmune disease Drug Eruptions pleural disease cutaneous leishmaniasis pulmonary fibrosis bagassosis colitis tuberculosis, bovine drug allergy malignant mesothelioma non-alcoholic fatty liver disease allergic contact dermatitis alopecia areata pneumoconiosis atopic eczema influenza kidney disease systemic lupus erythematosus common cold dermatitis, atopic acute T cell leukemia drug-induced liver injury arthritic joint disease Hodgkins lymphoma autism pustulosis palmaris et plantaris inborn carbohydrate metabolic disorder interstitial lung disease schizophrenia leishmaniasis tuberculosis liver disease lymphatic system disease obesity disorder allergic rhinitis pneumonitis hypereosinophilic syndrome idiopathic interstitial pneumonia inflammatory bowel disease dermatitis paranoid schizophrenia helminthiasis HIV infectious disease cancer
B	Pharos: P24394	renal cell carcinoma IgE responsiveness, atopic asthma chromophobe renal cell carcinoma collecting duct carcinoma papillary renal cell carcinoma sarcomatoid renal cell carcinoma atopic eczema HIV infectious disease ovarian cancer peripheral arterial disease renal carcinoma spina bifida allergic rhinitis breast cancer renal cell carcinoma IgE responsiveness, atopic asthma chromophobe renal cell carcinoma collecting duct carcinoma papillary renal cell carcinoma sarcomatoid renal cell carcinoma atopic eczema HIV infectious disease ovarian cancer peripheral arterial disease renal carcinoma spina bifida allergic rhinitis breast cancer clear cell renal carcinoma gastric carcinoma lymphoplasmacytic lymphoma MALT lymphoma pancreatic ductal adenocarcinoma primary biliary cholangitis susceptibility to HIV infection HIV Coinfection lung cancer malignant mesothelioma osteosarcoma psoriasis lung carcinoma malignant pancreatic neoplasm

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.