Annotations: 1B8M

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1b8ma_	Small proteins	Cystine-knot cytokines	Cystine-knot cytokines	Neurotrophin	Brain-derived neurotrophic factor, BDNF	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
B	d1b8mb_	Small proteins	Cystine-knot cytokines	Cystine-knot cytokines	Neurotrophin	Neurotrophin 4, NT4	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	Cystine-knot cytokines	8038793	3000846	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Cystine-knot cytokines	8036419	3000846	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		e1b8mA1	A: C-terminal subdomain in Lon-related proteases catalytic domains	X: C-terminal subdomain in Lon-related proteases catalytic domains	H: C-terminal subdomain in Lon-related proteases catalytic domains	T: EGF_CA	F:	ECOD (20:10:01)
B		e1b8mB1	A: C-terminal subdomain in Lon-related proteases catalytic domains	X: C-terminal subdomain in Lon-related proteases catalytic domains	H: C-terminal subdomain in Lon-related proteases catalytic domains	T: EGF_CA	F:	ECOD (20:10:01)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.10.90.10	Mainly Beta	Ribbon	Cystine Knot Cytokines, subunit B	Cystine-knot cytokines	CATH (4.3.0)
B	2.10.90.10	Mainly Beta	Ribbon	Cystine Knot Cytokines, subunit B	Cystine-knot cytokines	CATH (4.3.0)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	PROTEIN (BRAIN DERIVED NEUROTROPHIC FACTOR)	molecular function activator activity molecular function regulator activity signaling receptor regulator activity growth factor activity receptor ligand activity signaling receptor activator activity protein binding binding signaling receptor binding nerve growth factor receptor binding cytokine receptor binding neurotrophin receptor binding tumor necrosis factor receptor superfamily binding death receptor binding	cellular response to stimulus regulation of biological process regulation of cellular process cell surface receptor signaling pathway response to stimulus signaling biological regulation cell surface receptor protein tyrosine kinase signaling pathway cell communication brain-derived neurotrophic factor receptor signaling pathway cellular process signal transduction enzyme-linked receptor protein signaling pathway cellular response to growth factor stimulus cellular response to stimulus regulation of biological process regulation of cellular process cell surface receptor signaling pathway response to stimulus signaling biological regulation cell surface receptor protein tyrosine kinase signaling pathway cell communication brain-derived neurotrophic factor receptor signaling pathway cellular process signal transduction enzyme-linked receptor protein signaling pathway cellular response to growth factor stimulus response to endogenous stimulus cellular response to nerve growth factor stimulus cellular response to endogenous stimulus nerve growth factor signaling pathway neurotrophin signaling pathway response to nerve growth factor response to growth factor positive regulation of nervous system development multicellular organismal process positive regulation of cellular component organization regulation of cellular component organization regulation of developmental process positive regulation of biological process regulation of nervous system development positive regulation of developmental process cellular component organization cellular component biogenesis multicellular organism development cellular component assembly cell junction assembly anatomical structure development regulation of multicellular organismal process regulation of synapse structure or activity synapse organization cellular component organization or biogenesis regulation of synapse assembly regulation of biological quality positive regulation of cellular process system development developmental process regulation of multicellular organismal development positive regulation of cellular component biogenesis nervous system development regulation of cellular component biogenesis regulation of cell junction assembly positive regulation of cell junction assembly regulation of synapse organization cell junction organization positive regulation of multicellular organismal process synapse assembly positive regulation of synapse assembly positive regulation of cell communication positive regulation of signal transduction regulation of brain-derived neurotrophic factor receptor signaling pathway regulation of signal transduction positive regulation of response to stimulus regulation of signaling positive regulation of brain-derived neurotrophic factor receptor signaling pathway regulation of response to stimulus regulation of cell communication positive regulation of signaling localization regulation of localization protein localization to cell surface regulation of protein localization macromolecule localization regulation of protein localization to cell surface intracellular protein localization neuron apoptotic process negative regulation of neuron apoptotic process negative regulation of programmed cell death regulation of apoptotic process negative regulation of biological process regulation of programmed cell death cell death negative regulation of apoptotic process negative regulation of cellular process apoptotic process programmed cell death regulation of neuron apoptotic process cellular developmental process cell projection organization plasma membrane bounded cell projection morphogenesis cell development neuron projection development cell morphogenesis neurogenesis cell projection morphogenesis neuron differentiation neuron projection morphogenesis cell differentiation plasma membrane bounded cell projection organization generation of neurons anatomical structure morphogenesis neuron development negative regulation of muscle cell differentiation regulation of cell differentiation regulation of striated muscle cell differentiation muscle cell differentiation myotube differentiation muscle structure development negative regulation of myotube differentiation regulation of myotube differentiation negative regulation of cell differentiation negative regulation of developmental process negative regulation of striated muscle cell differentiation regulation of muscle cell differentiation striated muscle cell differentiation axonogenesis developmental growth cell growth collateral sprouting developmental cell growth growth axon development cell morphogenesis involved in neuron differentiation developmental growth involved in morphogenesis regulation of neuron projection development positive regulation of neuron projection development positive regulation of cell projection organization regulation of cell projection organization regulation of plasma membrane bounded cell projection organization trans-synaptic signaling modulation of chemical synaptic transmission cell-cell signaling chemical synaptic transmission synaptic signaling regulation of trans-synaptic signaling anterograde trans-synaptic signaling negative regulation of signaling negative regulation of cell communication negative regulation of apoptotic signaling pathway negative regulation of response to stimulus negative regulation of signal transduction apoptotic signaling pathway regulation of apoptotic signaling pathway axon guidance neuron projection guidance regulation of growth regulation of cellular component size regulation of neurogenesis regulation of cell development positive regulation of developmental growth positive regulation of collateral sprouting positive regulation of cell development regulation of collateral sprouting regulation of extent of cell growth positive regulation of cell differentiation regulation of axonogenesis positive regulation of neurogenesis regulation of anatomical structure morphogenesis positive regulation of axonogenesis regulation of cell size regulation of developmental growth positive regulation of cell growth regulation of cell growth positive regulation of growth regulation of anatomical structure size nerve development	somatodendritic compartment cell projection cellular anatomical structure dendrite dendritic tree neuron projection plasma membrane bounded cell projection intracellular anatomical structure cytoplasm membrane-bounded organelle membrane-enclosed lumen intracellular membrane-bounded organelle endomembrane system intracellular organelle lumen somatodendritic compartment cell projection cellular anatomical structure dendrite dendritic tree neuron projection plasma membrane bounded cell projection intracellular anatomical structure cytoplasm membrane-bounded organelle membrane-enclosed lumen intracellular membrane-bounded organelle endomembrane system intracellular organelle lumen endoplasmic reticulum lumen intracellular organelle organelle lumen organelle endoplasmic reticulum extracellular region perinuclear region of cytoplasm axon extracellular space transport vesicle synapse intracellular vesicle presynapse cytoplasmic vesicle synaptic vesicle cell junction secretory vesicle vesicle exocytic vesicle
B	PROTEIN (NEUROTROPHIN-4)	molecular function activator activity molecular function regulator activity signaling receptor regulator activity growth factor activity receptor ligand activity signaling receptor activator activity protein binding binding signaling receptor binding nerve growth factor receptor binding cytokine receptor binding neurotrophin receptor binding tumor necrosis factor receptor superfamily binding death receptor binding	cellular response to stimulus regulation of biological process cellular response to growth factor stimulus regulation of cellular process response to stimulus cell surface receptor signaling pathway signaling response to endogenous stimulus biological regulation cellular response to nerve growth factor stimulus cell communication cellular response to endogenous stimulus nerve growth factor signaling pathway neurotrophin signaling pathway cellular response to stimulus regulation of biological process cellular response to growth factor stimulus regulation of cellular process response to stimulus cell surface receptor signaling pathway signaling response to endogenous stimulus biological regulation cellular response to nerve growth factor stimulus cell communication cellular response to endogenous stimulus nerve growth factor signaling pathway neurotrophin signaling pathway response to nerve growth factor cellular process response to growth factor signal transduction developmental process multicellular organismal process sensory organ development animal organ development sensory organ boundary specification pattern specification process formation of anatomical boundary regionalization anatomical structure morphogenesis multicellular organism development anatomical structure formation involved in morphogenesis anatomical structure development formation of animal organ boundary animal organ formation animal organ morphogenesis adult locomotory behavior behavior adult behavior locomotory behavior mechanoreceptor differentiation cellular developmental process nervous system development generation of neurons neurogenesis neuron differentiation cell differentiation system development epidermis development tissue development neuron apoptotic process negative regulation of neuron apoptotic process negative regulation of programmed cell death regulation of apoptotic process negative regulation of biological process regulation of programmed cell death cell death negative regulation of apoptotic process negative regulation of cellular process apoptotic process programmed cell death regulation of neuron apoptotic process cell projection organization plasma membrane bounded cell projection morphogenesis cell development neuron projection development cell morphogenesis cellular component organization cell projection morphogenesis neuron projection morphogenesis cellular component organization or biogenesis plasma membrane bounded cell projection organization neuron development cell fate determination ganglion mother cell fate determination cell fate commitment system process learning or memory long-term memory nervous system process cognition memory trans-synaptic signaling regulation of signaling modulation of chemical synaptic transmission cell-cell signaling chemical synaptic transmission synaptic signaling regulation of trans-synaptic signaling anterograde trans-synaptic signaling regulation of cell communication cell surface receptor protein tyrosine kinase signaling pathway enzyme-linked receptor protein signaling pathway tongue development taste bud development nerve development innervation epithelium development ameloblast differentiation columnar/cuboidal epithelial cell differentiation epithelial cell differentiation	somatodendritic compartment cell projection cellular anatomical structure dendrite dendritic tree neuron projection plasma membrane bounded cell projection extracellular region axon extracellular space membrane-bounded organelle intracellular anatomical structure transport vesicle synapse somatodendritic compartment cell projection cellular anatomical structure dendrite dendritic tree neuron projection plasma membrane bounded cell projection extracellular region axon extracellular space membrane-bounded organelle intracellular anatomical structure transport vesicle synapse intracellular vesicle intracellular membrane-bounded organelle endomembrane system intracellular organelle presynapse cytoplasmic vesicle synaptic vesicle organelle cell junction secretory vesicle cytoplasm vesicle exocytic vesicle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR020408	Nerve growth factor-like	Family
A	IPR019846	Nerve growth factor conserved site	Conserved Site
A	IPR029034	Cystine-knot cytokine	Homologous Superfamily
A	IPR020430	Brain-derived neurotrophic factor	Family
A	IPR002072	Nerve growth factor-related	Domain
B	IPR020408	Nerve growth factor-like	Family
B	IPR019846	Nerve growth factor conserved site	Conserved Site
B	IPR029034	Cystine-knot cytokine	Homologous Superfamily
B	IPR002072	Nerve growth factor-related	Domain
B	IPR020432	Neurotrophin-4	Family

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	Pharos: P23560	WAGR syndrome epilepsy morbid obesity congenital central hypoventilation syndrome status epilepticus intellectual disability Alzheimer disease schizophrenia Inflammation brain ischemia amphetamine abuse heroin dependence attention deficit hyperactivity disorder, inattentive type autism bipolar disorder WAGR syndrome epilepsy morbid obesity congenital central hypoventilation syndrome status epilepticus intellectual disability Alzheimer disease schizophrenia Inflammation brain ischemia amphetamine abuse heroin dependence attention deficit hyperactivity disorder, inattentive type autism bipolar disorder Parkinson disease epilepsy with generalized tonic-clonic seizures cocaine abuse schizoaffective disorder nervous system disorder nicotine dependence substance withdrawal syndrome obsessive-compulsive disorder endogenous depression visual epilepsy bulimia nervosa melancholia cocaine dependence dementia depressive disorder interstitial cystitis large cell medulloblastoma ovarian cancer major depressive disorder malignant mesothelioma bulimia nervosa, susceptibility to, 1 gastric neoplasm cerebrovascular disorder Rett syndrome glioblastoma metabolic syndrome X schizophreniform disorder astrocytic tumor neurotic disorder substance abuse interstitial lung disease obesity disorder lung adenocarcinoma oligodendroglioma malignant ependymoma pilocytic astrocytoma medulloblastoma inborn carbohydrate metabolic disorder atypical teratoid rhabdoid tumor autism spectrum disorder lung cancer opiate dependence peripheral neuropathy toxic encephalopathy malignant glioma brain injury pituitary cancer alcohol abuse primitive neuroectodermal tumor gastric cancer mood disorder hereditary diffuse gastric adenocarcinoma anxiety disorder neurodegenerative disease
B	Pharos: P34130	glaucoma 1, open angle, O intellectual disability Nerve Degeneration autism glaucoma bipolar disorder

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.