Annotations: 1N8Y

Domain Annotation: SCOP/SCOPe Classification SCOP Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A [auth C]	d1n8yc1	Alpha and beta proteins (a/b)	Leucine-rich repeat, LRR (right-handed beta-alpha superhelix)	L domain-like	L domain	Protooncoprotein Her2 extracellular domain	Norway rat (Rattus norvegicus ) [TaxId: 10116 ],	SCOPe (2.08)
A [auth C]	d1n8yc3	Small proteins	Knottins (small inhibitors, toxins, lectins)	Growth factor receptor domain	Growth factor receptor domain	Protooncoprotein Her2 extracellular domain	Norway rat (Rattus norvegicus ) [TaxId: 10116 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A [auth C]	SCOP2 Family	Growth factor receptor domain	8031308	4003193	SCOP2 (2022-06-29)
A [auth C]	SCOP2 Family	Growth factor receptor domain	8031309	4003193	SCOP2 (2022-06-29)
A [auth C]	SCOP2 Family	L domain	8031305	4003546	SCOP2 (2022-06-29)
A [auth C]	SCOP2 Family	L domain	8031307	4003546	SCOP2 (2022-06-29)
A [auth C]	SCOP2 Superfamily	Growth factor receptor domain-like	8043686	3000398	SCOP2 (2022-06-29)
A [auth C]	SCOP2 Superfamily	Growth factor receptor domain-like	8043687	3000398	SCOP2 (2022-06-29)
A [auth C]	SCOP2 Superfamily	L domain-like	8043683	3001010	SCOP2 (2022-06-29)
A [auth C]	SCOP2 Superfamily	L domain-like	8043685	3001010	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 [auth C]	Recep_L_domain	e1n8yC1	A: beta duplicates or obligate multimers	X: Single-stranded right-handed beta-helix	H: Leucine-rich repeats (From Topology)	T: Leucine-rich repeats	F: Recep_L_domain	ECOD (1.6)
A [auth C]	GF_recep_IV	e1n8yC4	A: few secondary structure elements	X: EGF-like	H: Growth factor receptor domain (From Topology)	T: Growth factor receptor domain	F: GF_recep_IV	ECOD (1.6)
A [auth C]	Furin-like	e1n8yC3	A: few secondary structure elements	X: EGF-like	H: Growth factor receptor domain (From Topology)	T: Growth factor receptor domain	F: Furin-like	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A [auth C]	3.80.20.20	Alpha Beta	Alpha-Beta Horseshoe	24 nucleotide stem-loop, u2 snrnp hairpin iv. U2 a'	Chain A	CATH (4.3.0)
A [auth C]	2.10.220.10	Mainly Beta	Ribbon	Hormone Receptor, Insulin-like Growth Factor Receptor 1	Chain A domain 2	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A [auth C]	PF00757	Furin-like cysteine rich region (Furin-like)	Furin-like cysteine rich region	-	Domain
A [auth C]	PF01030	Receptor L domain (Recep_L_domain)	Receptor L domain	-	Repeat
A [auth C]	PF14843	Growth factor receptor domain IV (GF_recep_IV)	Growth factor receptor domain IV	This is the fourth extracellular domain of receptor tyrosine protein kinases. Interaction between this domain and the furin-like domain (Pfam:PF00757) regulates the binding of ligands to the receptor L domains (Pfam:PF01030) [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth C]	protooncoprotein	protein tyrosine kinase activity catalytic activity, acting on a protein kinase activity protein kinase activity transferase activity catalytic activity phosphotransferase activity, alcohol group as acceptor transferase activity, transferring phosphorus-containing groups binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding protein tyrosine kinase activity catalytic activity, acting on a protein kinase activity protein kinase activity transferase activity catalytic activity phosphotransferase activity, alcohol group as acceptor transferase activity, transferring phosphorus-containing groups binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding DNA binding nucleic acid binding protein-containing complex binding ubiquitin protein ligase binding protein binding ubiquitin-like protein ligase binding enzyme binding molecular transducer activity transmembrane signaling receptor activity signaling receptor activity signaling receptor binding ErbB-3 class receptor binding coreceptor activity RNA polymerase I core binding RNA polymerase binding RNA polymerase core enzyme binding transmembrane receptor protein tyrosine kinase activity transmembrane receptor protein kinase activity protein tyrosine kinase binding kinase binding receptor tyrosine kinase binding protein kinase binding identical protein binding Hsp90 protein binding heat shock protein binding protein heterodimerization activity protein dimerization activity	response to stimulus response to chemical response to xenobiotic stimulus developmental process heart development multicellular organism development multicellular organismal process anatomical structure development animal organ development circulatory system development system development tongue development sensory organ development cellular developmental process response to stimulus response to chemical response to xenobiotic stimulus developmental process heart development multicellular organism development multicellular organismal process anatomical structure development animal organ development circulatory system development system development tongue development sensory organ development cellular developmental process immature T cell proliferation in thymus cell development mononuclear cell differentiation lymphocyte activation lymphocyte differentiation leukocyte proliferation leukocyte activation T cell differentiation in thymus T cell activation cell differentiation lymphocyte proliferation T cell differentiation T cell proliferation cell population proliferation hemopoiesis cell activation immature T cell proliferation immune system process mononuclear cell proliferation cellular process leukocyte differentiation cellular response to stimulus ERBB2 signaling pathway regulation of biological process regulation of cellular process cell surface receptor signaling pathway signaling ERBB2-ERBB3 signaling pathway biological regulation cell surface receptor protein tyrosine kinase signaling pathway cell communication ERBB signaling pathway ERBB3 signaling pathway signal transduction enzyme-linked receptor protein signaling pathway negative regulation of lymphocyte proliferation regulation of leukocyte differentiation regulation of leukocyte activation negative regulation of biological process regulation of cell activation negative regulation of T cell differentiation in thymus regulation of cell differentiation negative regulation of T cell proliferation regulation of cell development negative regulation of cell adhesion negative regulation of T cell differentiation negative regulation of leukocyte proliferation regulation of immune system process regulation of immature T cell proliferation negative regulation of hemopoiesis regulation of leukocyte proliferation negative regulation of immature T cell proliferation negative regulation of leukocyte differentiation regulation of immature T cell proliferation in thymus negative regulation of T cell activation negative regulation of leukocyte cell-cell adhesion regulation of cell population proliferation negative regulation of cell-cell adhesion regulation of leukocyte cell-cell adhesion negative regulation of lymphocyte differentiation negative regulation of multicellular organismal process negative regulation of leukocyte activation regulation of developmental process regulation of T cell differentiation in thymus negative regulation of lymphocyte activation leukocyte cell-cell adhesion regulation of T cell differentiation negative regulation of mononuclear cell proliferation cell adhesion cell-cell adhesion negative regulation of cellular process regulation of multicellular organismal process regulation of cell-cell adhesion negative regulation of cell differentiation negative regulation of immature T cell proliferation in thymus regulation of lymphocyte proliferation regulation of lymphocyte differentiation regulation of multicellular organismal development negative regulation of cell population proliferation negative regulation of developmental process regulation of cell adhesion regulation of T cell activation negative regulation of cell activation negative regulation of cell development regulation of T cell proliferation negative regulation of immune system process regulation of hemopoiesis regulation of mononuclear cell proliferation regulation of lymphocyte activation nervous system development epidermal growth factor receptor signaling pathway ERBB2-EGFR signaling pathway regulation of growth regulation of cellular component organization positive regulation of biological process growth positive regulation of cell growth regulation of cell growth cell growth cellular component organization positive regulation of growth cellular component organization or biogenesis positive regulation of cellular process neurogenesis 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 cell communication small GTPase-mediated signal transduction positive regulation of signal transduction regulation of small GTPase mediated signal transduction regulation of signal transduction intracellular signal transduction Rho protein signal transduction positive regulation of response to stimulus regulation of intracellular signal transduction intracellular signaling cassette regulation of signaling positive regulation of intracellular signal transduction regulation of Rho protein signal transduction positive regulation of Rho protein signal transduction regulation of response to stimulus regulation of cell communication positive regulation of small GTPase mediated signal transduction positive regulation of signaling generation of neurons neuron differentiation positive regulation of cell adhesion positive regulation of cell population proliferation cellular response to endogenous stimulus cellular response to growth factor stimulus response to endogenous stimulus response to growth factor peripheral nervous system development wound healing response to stress response to wounding positive regulation of macromolecule biosynthetic process regulation of primary metabolic process nucleobase-containing compound metabolic process positive regulation of metabolic process DNA-templated transcription regulation of RNA metabolic process transcription by RNA polymerase I organic substance biosynthetic process positive regulation of macromolecule metabolic process regulation of nucleobase-containing compound metabolic process positive regulation of nucleobase-containing compound metabolic process regulation of transcription by RNA polymerase I cellular metabolic process primary metabolic process regulation of cellular metabolic process positive regulation of RNA metabolic process organic cyclic compound metabolic process regulation of gene expression biosynthetic process organic cyclic compound biosynthetic process metabolic process regulation of macromolecule biosynthetic process macromolecule metabolic process regulation of DNA-templated transcription regulation of metabolic process positive regulation of DNA-templated transcription cellular biosynthetic process RNA metabolic process positive regulation of cellular metabolic process RNA biosynthetic process nucleic acid biosynthetic process organic substance metabolic process positive regulation of biosynthetic process positive regulation of transcription by RNA polymerase I regulation of RNA biosynthetic process regulation of biosynthetic process regulation of macromolecule metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process regulation of cellular biosynthetic process positive regulation of RNA biosynthetic process positive regulation of cellular biosynthetic process cellular response to epidermal growth factor stimulus response to epidermal growth factor protein localization protein localization to postsynaptic specialization membrane cellular localization protein localization to postsynaptic membrane protein localization to cell periphery protein localization to synapse localization within membrane protein localization to membrane protein-containing complex localization neurotransmitter receptor localization to postsynaptic specialization membrane localization regulation of postsynaptic membrane neurotransmitter receptor levels protein localization to organelle cellular macromolecule localization macromolecule localization protein localization to postsynapse regulation of biological quality protein localization to cell junction receptor localization to synapse response to axon injury ERBB4 signaling pathway ERBB2-ERBB4 signaling pathway ovulation cycle rhythmic process estrous cycle reproductive process multicellular organismal reproductive process response to organic substance response to ketone response to lipid response to progesterone response to oxygen-containing compound response to hormone response to steroid hormone response to organic cyclic compound positive regulation of gene expression mammary gland morphogenesis mammary gland development gland development anatomical structure morphogenesis gland morphogenesis tissue remodeling mammary gland involution animal organ morphogenesis sympathetic nervous system development autonomic nervous system development regulation of MAPK cascade MAPK cascade ERK1 and ERK2 cascade regulation of ERK1 and ERK2 cascade phosphorylation phosphate-containing compound metabolic process phosphorus metabolic process gliogenesis glial cell differentiation regulation of localization establishment of protein localization regulation of protein localization protein targeting positive regulation of establishment of protein localization regulation of protein targeting to membrane regulation of protein localization to membrane establishment of protein localization to membrane regulation of establishment of protein localization positive regulation of protein localization to membrane establishment of localization protein targeting to membrane regulation of cellular localization regulation of protein targeting positive regulation of protein localization positive regulation of protein targeting to membrane hepaticobiliary system development liver development central nervous system development oligodendrocyte differentiation phosphatidylinositol 3-kinase/protein kinase B signal transduction glial cell development Schwann cell development Schwann cell differentiation cell junction organization neuromuscular junction development synapse organization axonogenesis cell projection organization motor neuron axon guidance plasma membrane bounded cell projection morphogenesis neuron projection development cell morphogenesis cell projection morphogenesis neuron projection morphogenesis plasma membrane bounded cell projection organization axon guidance axon development cell morphogenesis involved in neuron differentiation neuron projection guidance neuron development muscle structure development skeletal muscle organ development skeletal muscle tissue development muscle tissue development muscle organ development tissue development positive regulation of epithelial cell proliferation regulation of epithelial cell proliferation epithelial cell proliferation regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction positive regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction positive regulation of protein metabolic process organonitrogen compound biosynthetic process positive regulation of translation post-transcriptional regulation of gene expression protein metabolic process organonitrogen compound metabolic process regulation of protein metabolic process translation regulation of translation positive regulation of MAPK cascade semaphorin-plexin signaling pathway positive regulation of phosphorylation regulation of protein modification process regulation of protein phosphorylation positive regulation of phosphate metabolic process positive regulation of protein modification process regulation of phosphate metabolic process positive regulation of protein phosphorylation protein modification process protein phosphorylation positive regulation of phosphorus metabolic process macromolecule modification regulation of phosphorus metabolic process regulation of phosphorylation myelination axon ensheathment ensheathment of neurons regulation of microtubule-based process microtubule-based process regulation of Ras protein signal transduction positive regulation of Ras protein signal transduction Ras protein signal transduction	protein-containing complex receptor complex neuromuscular junction synapse cell junction cellular anatomical entity endosome membrane membrane-bounded organelle intracellular anatomical structure membrane endosome intracellular vesicle intracellular membrane-bounded organelle endomembrane system protein-containing complex receptor complex neuromuscular junction synapse cell junction cellular anatomical entity endosome membrane membrane-bounded organelle intracellular anatomical structure membrane endosome intracellular vesicle intracellular membrane-bounded organelle endomembrane system intracellular organelle cytoplasmic vesicle membrane bounding membrane of organelle vesicle membrane cytoplasmic vesicle organelle cytoplasm vesicle organelle membrane cell periphery apical part of cell plasma membrane plasma membrane region apical plasma membrane ruffle cell leading edge leading edge membrane plasma membrane bounded cell projection cell projection ruffle membrane cell projection membrane basal part of cell basal plasma membrane lateral loop myelin sheath postsynapse postsynaptic membrane synaptic membrane plasma membrane protein complex plasma membrane signaling receptor complex membrane protein complex ERBB3:ERBB2 complex presynapse presynaptic membrane basolateral plasma membrane semaphorin receptor complex actin-based cell projection microvillus perinuclear region of cytoplasm early endosome nucleus

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth C]	IPR016245	Tyrosine protein kinase, EGF/ERB/XmrK receptor	Family
A [auth C]	IPR020635	Tyrosine-protein kinase, catalytic domain	Domain
A [auth C]	IPR000719	Protein kinase domain	Domain
A [auth C]	IPR032778	Growth factor receptor domain 4	Domain
A [auth C]	IPR006212	Furin-like repeat	Repeat
A [auth C]	IPR017441	Protein kinase, ATP binding site	Binding Site
A [auth C]	IPR001245	Serine-threonine/tyrosine-protein kinase, catalytic domain	Domain
A [auth C]	IPR009030	Growth factor receptor cysteine-rich domain superfamily	Homologous Superfamily
A [auth C]	IPR008266	Tyrosine-protein kinase, active site	Active Site
A [auth C]	IPR036941	Receptor L-domain superfamily	Homologous Superfamily
A [auth C]	IPR049328	Epidermal growth factor receptor-like, transmembrane-juxtamembrane segment	Domain
A [auth C]	IPR000494	Receptor L-domain	Domain
A [auth C]	IPR011009	Protein kinase-like domain superfamily	Homologous Superfamily
A [auth C]	IPR006211	Furin-like cysteine-rich domain	Domain

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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 R01GM133198.