Annotations: 9H1F

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Actin depolymerizing proteins	8038510	3000430	SCOP2B (2022-06-29)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
B	Heavy Chain	IGHV1	-	cofilin-1	SAbDab (2025-12-19)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF00241	Cofilin/tropomyosin-type actin-binding protein (Cofilin_ADF)	Cofilin/tropomyosin-type actin-binding protein	Severs actin filaments and binds to actin monomers.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
B	SybodyB12	-	-	-
A	Cofilin-1	cytoskeletal protein binding actin binding protein-containing complex binding protein binding binding actin filament binding protein phosphatase binding phosphatase binding enzyme binding phosphatidylinositol bisphosphate binding phospholipid binding lipid binding phosphatidylinositol phosphate binding phosphatidylinositol binding cytoskeletal protein binding actin binding protein-containing complex binding protein binding binding actin filament binding protein phosphatase binding phosphatase binding enzyme binding phosphatidylinositol bisphosphate binding phospholipid binding lipid binding phosphatidylinositol phosphate binding phosphatidylinositol binding signaling receptor binding	cellular response to stimulus cellular response to nitrogen compound response to stimulus response to endogenous stimulus response to peptide hormone cellular response to peptide hormone stimulus response to oxygen-containing compound response to nitrogen compound cellular response to oxygen-containing compound cellular response to endogenous stimulus cellular response to chemical stimulus response to hormone response to chemical cellular process cellular response to stimulus cellular response to nitrogen compound response to stimulus response to endogenous stimulus response to peptide hormone cellular response to peptide hormone stimulus response to oxygen-containing compound response to nitrogen compound cellular response to oxygen-containing compound cellular response to endogenous stimulus cellular response to chemical stimulus response to hormone response to chemical cellular process cellular response to insulin-like growth factor stimulus cellular response to hormone stimulus regulation of cytoskeleton organization regulation of cellular component organization regulation of cellular process regulation of actin filament-based process negative regulation of biological process regulation of actin filament bundle assembly cellular component organization cellular component biogenesis cellular component assembly actin filament bundle organization negative regulation of cellular process actin filament-based process negative regulation of supramolecular fiber organization cellular component organization or biogenesis regulation of biological process regulation of actin filament organization negative regulation of cellular component organization actin cytoskeleton organization negative regulation of cytoskeleton organization biological regulation actin filament organization negative regulation of actin filament bundle assembly regulation of cellular component biogenesis regulation of organelle organization organelle organization negative regulation of organelle organization regulation of actin cytoskeleton organization actin filament bundle assembly regulation of supramolecular fiber organization supramolecular fiber organization cytoskeleton organization regulation of growth negative regulation of unidimensional cell growth regulation of developmental process cellular developmental process developmental growth unidimensional cell growth cell development regulation of cell differentiation cell morphogenesis cell growth regulation of cell morphogenesis regulation of cell development negative regulation of growth cell differentiation anatomical structure development negative regulation of cell differentiation regulation of anatomical structure morphogenesis developmental process regulation of developmental growth negative regulation of developmental process growth negative regulation of cell growth regulation of cell growth negative regulation of cell morphogenesis developmental growth involved in morphogenesis regulation of unidimensional cell growth anatomical structure morphogenesis negative regulation of developmental growth negative regulation of cell development actin filament severing postsynaptic density organization regulation of synapse structure or activity synapse organization regulation of biological quality regulation of postsynaptic density organization postsynapse organization regulation of postsynapse organization regulation of synapse organization negative regulation of postsynaptic density organization cell junction organization postsynaptic specialization organization regulation of localization regulation of protein localization to cell leading edge regulation of protein localization protein localization to cell leading edge positive regulation of biological process localization positive regulation of protein localization to cell leading edge macromolecule localization positive regulation of protein localization intracellular protein localization cellular component disassembly actin polymerization or depolymerization protein-containing complex organization protein-containing complex disassembly actin filament depolymerization protein depolymerization regulation of synaptic plasticity trans-synaptic signaling regulation of signaling modulation of chemical synaptic transmission signaling cell-cell signaling chemical synaptic transmission cell communication positive regulation of synaptic plasticity synaptic signaling regulation of trans-synaptic signaling anterograde trans-synaptic signaling regulation of cell communication establishment of protein localization cellular localization nitrogen compound transport nucleocytoplasmic transport transport nuclear transport intracellular transport protein localization to nucleus establishment of localization import into nucleus establishment of protein localization to organelle protein transport establishment of localization in cell protein localization to organelle protein import into nucleus intracellular protein transport establishment of cell polarity establishment or maintenance of cell polarity multicellular organismal process cell projection organization positive regulation of dendritic spine development regulation of dendritic spine development neuron projection development positive regulation of developmental process neurogenesis multicellular organism development neuron differentiation dendrite development system development dendritic spine development plasma membrane bounded cell projection organization nervous system development generation of neurons neuron development positive regulation of cellular component organization cell-substrate junction assembly positive regulation of cell-substrate junction organization cell adhesion cell junction assembly positive regulation of cell-substrate adhesion regulation of cell-substrate junction organization positive regulation of cellular process focal adhesion assembly positive regulation of focal adhesion assembly positive regulation of cellular component biogenesis regulation of cell-substrate adhesion positive regulation of cell adhesion regulation of cell adhesion cell-substrate adhesion positive regulation of cell-matrix adhesion regulation of cell junction assembly positive regulation of cell junction assembly cell-matrix adhesion regulation of cell-matrix adhesion cell-substrate junction organization regulation of focal adhesion assembly regulation of cell-substrate junction assembly positive regulation of protein metabolic process regulation of protein metabolic process primary metabolic process regulation of macromolecule metabolic process regulation of primary metabolic process positive regulation of metabolic process regulation of proteolysis proteolysis positive regulation of proteolysis metabolic process positive regulation of macromolecule metabolic process protein metabolic process macromolecule metabolic process regulation of metabolic process embryonic epithelial tube formation chordate embryonic development neural fold formation tube formation embryo development epithelial tube formation primary neural tube formation tube morphogenesis embryo development ending in birth or egg hatching epithelial tube morphogenesis morphogenesis of an epithelial fold morphogenesis of embryonic epithelium epithelium development neural tube development tube development embryonic morphogenesis morphogenesis of an epithelium tissue development tissue morphogenesis neural tube formation anatomical structure formation involved in morphogenesis response to peptide response to interleukin-6 cellular response to interleukin-6 response to cytokine cellular response to cytokine stimulus biological process involved in interspecies interaction between organisms host-mediated perturbation of viral process modulation of process of another organism host-mediated activation of viral process host-mediated perturbation of symbiont process establishment of organelle localization microtubule cytoskeleton organization spindle localization establishment of spindle localization organelle localization microtubule-based process cell cycle cell cycle process dendritic spine maintenance cellular component maintenance regulation of dendritic spine maintenance negative regulation of cell projection organization negative regulation of dendritic spine maintenance dendritic spine organization regulation of cell projection organization neuron projection organization regulation of plasma membrane bounded cell projection organization positive regulation of locomotion regulation of cell motility regulation of locomotion positive regulation of cell motility cell motility locomotion actin filament fragmentation small GTPase-mediated signal transduction Rho protein signal transduction intracellular signal transduction intracellular signaling cassette signal transduction cellular response to interleukin-1 response to interleukin-1 negative regulation of cell adhesion response to acid chemical response to amino acid positive regulation of cell growth positive regulation of growth head development forebrain development animal organ development brain development pallium development central nervous system development telencephalon development hippocampus development limbic system development mitotic cell cycle process cytoskeleton-dependent cytokinesis mitotic cytokinesis cytokinesis cell division mitotic cell cycle response to ether cellular response to ether cell projection morphogenesis neuron projection morphogenesis dendritic spine morphogenesis regulation of neuron projection development plasma membrane bounded cell projection morphogenesis dendrite morphogenesis cell morphogenesis involved in neuron differentiation regulation of dendritic spine morphogenesis regulation of cellular component size regulation of protein-containing complex disassembly regulation of actin filament depolymerization actin filament capping negative regulation of actin filament polymerization positive regulation of barbed-end actin filament capping barbed-end actin filament capping negative regulation of protein depolymerization negative regulation of protein-containing complex assembly regulation of protein polymerization regulation of barbed-end actin filament capping regulation of protein-containing complex assembly negative regulation of protein-containing complex disassembly protein-containing complex assembly negative regulation of protein polymerization regulation of actin filament polymerization protein polymerization actin filament polymerization regulation of protein depolymerization regulation of actin polymerization or depolymerization regulation of actin filament length negative regulation of actin filament depolymerization regulation of anatomical structure size 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 organelle organization positive regulation of actin filament depolymerization positive regulation of protein-containing complex disassembly positive regulation of protein depolymerization positive regulation of cytoskeleton organization positive regulation of supramolecular fiber organization response to activity stem cell development neural crest cell differentiation neural crest cell development mesenchyme development mesenchymal cell migration stem cell differentiation ameboidal-type cell migration cell migration mesenchymal cell differentiation neural crest cell migration negative regulation of locomotion negative regulation of cell motility modification of postsynaptic actin cytoskeleton modification of postsynaptic structure modification of synaptic structure cellular response to oxidative stress cellular response to chemical stress cellular response to hydrogen peroxide response to reactive oxygen species response to hydrogen peroxide response to oxidative stress cellular response to reactive oxygen species cellular response to stress response to stress cellular response to tumor necrosis factor response to tumor necrosis factor plasma membrane bounded cell projection assembly negative regulation of plasma membrane bounded cell projection assembly regulation of lamellipodium assembly regulation of lamellipodium organization negative regulation of lamellipodium assembly lamellipodium assembly regulation of cell projection assembly regulation of plasma membrane bounded cell projection assembly negative regulation of lamellipodium organization lamellipodium organization cell projection assembly response to other organism response to external stimulus response to external biotic stimulus response to virus response to biotic stimulus regulation of embryonic development regulation of multicellular organismal development positive regulation of embryonic development positive regulation of multicellular organismal process regulation of multicellular organismal process cellular response to growth factor stimulus cellular response to epidermal growth factor stimulus response to epidermal growth factor response to growth factor regulation of establishment or maintenance of cell polarity regulation of establishment of cell polarity regulating cell shape positive regulation of establishment of cell polarity regulating cell shape regulation of cell shape regulation of establishment or maintenance of cell polarity regulating cell shape positive regulation of establishment or maintenance of cell polarity regulating cell shape establishment or maintenance of cell polarity regulating cell shape regulation of establishment of cell polarity establishment of cell polarity regulating cell shape positive regulation of cell projection organization positive regulation of lamellipodium assembly positive regulation of lamellipodium organization positive regulation of plasma membrane bounded cell projection assembly negative regulation of cell size regulation of cell size	cell projection cellular anatomical structure cell leading edge plasma membrane bounded cell projection lamellipodium membrane cell-cell junction anchoring junction cell junction extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle extracellular region cell projection cellular anatomical structure cell leading edge plasma membrane bounded cell projection lamellipodium membrane cell-cell junction anchoring junction cell junction extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle extracellular region organelle extracellular space vesicle extracellular membrane-bounded organelle intracellular organelle intracellular anatomical structure cytoskeleton membraneless organelle intracellular membraneless organelle actin cytoskeleton mitochondrial membrane mitochondrion intracellular membrane-bounded organelle organelle envelope mitochondrial envelope cytoplasm organelle membrane cytosol synapse glutamatergic synapse neuron spine neuron projection dendritic spine somatodendritic compartment postsynapse dendrite dendritic tree cell body neuronal cell body postsynaptic density, intracellular component postsynaptic specialization postsynaptic specialization, intracellular component postsynaptic density neuron to neuron synapse asymmetric synapse actin-based cell projection filopodium nucleus membrane-enclosed lumen intracellular organelle lumen organelle lumen nuclear lumen nuclear matrix focal adhesion cell-substrate junction cell periphery plasma membrane plasma membrane region synaptic membrane ruffle leading edge membrane ruffle membrane cell projection membrane growth cone axon distal axon site of polarized growth actin rod actin filament bundle cofilin-actin rod lamellipodium membrane cell cortex cortical cytoskeleton cortical actin cytoskeleton

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR017904	ADF/Cofilin	Family
A	IPR029006	ADF-H/Gelsolin-like domain superfamily	Homologous Superfamily
A	IPR002108	Actin-depolymerising factor homology domain	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	Pharos: P23528	breast carcinoma esophageal squamous cell carcinoma Neoplasm Metastasis spina bifida breast cancer pancreatic ductal adenocarcinoma precancerous condition acne atypical teratoid rhabdoid tumor chronic kidney disease tethered spinal cord syndrome diabetes mellitus inflammatory bowel disease large cell medulloblastoma malignant pancreatic neoplasm breast carcinoma esophageal squamous cell carcinoma Neoplasm Metastasis spina bifida breast cancer pancreatic ductal adenocarcinoma precancerous condition acne atypical teratoid rhabdoid tumor chronic kidney disease tethered spinal cord syndrome diabetes mellitus inflammatory bowel disease large cell medulloblastoma malignant pancreatic neoplasm medulloblastoma osteosarcoma pancreatic intraductal papillary-mucinous carcinoma allergic rhinitis rheumatoid arthritis invasive ductal breast carcinoma malignant glioma ovarian cancer pancreatic intraductal papillary-mucinous neoplasm psoriasis atopic eczema skin basal cell carcinoma systemic lupus erythematosus Crohn disease glioblastoma juvenile dermatomyositis

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.