Annotations: 8W41

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
C [auth A]	SCOP2B Superfamily	Myosin VI CBD-like	8094331	3002524	SCOP2B (2022-06-29)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A [auth B], B [auth I]	PF13499	EF-hand domain pair (EF-hand_7)	EF-hand domain pair	-	Domain
C [auth A]	PF21521	Myosin VI, lever arm (MYO6_lever)	Myosin VI, lever arm	This entry represents the lever arm from the unconventional myosin 6 proteins, the only class of myosin that has been shown to move toward the minus-end of actin filaments. This domain comprises an insert (Insert2) that binds the structural calmoduli ...	This entry represents the lever arm from the unconventional myosin 6 proteins, the only class of myosin that has been shown to move toward the minus-end of actin filaments. This domain comprises an insert (Insert2) that binds the structural calmodulin (CaM) followed by the IQ motif and a proximal tail domain described as the lever arm extension [1-5]. The lever arm amplifies the conformational changes in the motor into a movement on the order of nanometers known as the powerstroke.	Domain
C [auth A]	PF00063	Myosin head (motor domain) (Myosin_head)	Myosin head (motor domain)	-	Domain
C [auth A]	PF16521	Myosin VI cargo binding domain (Myosin-VI_CBD)	Myosin VI cargo binding domain	Myosin-VI_CBD is a C-terminal family that allows unconventional myosin-VI to recognise and select its binding cargoes. Several adaptor proteins have been reported to interact specifically with the CBD, thus defining the specific subcellular functions ...	Myosin-VI_CBD is a C-terminal family that allows unconventional myosin-VI to recognise and select its binding cargoes. Several adaptor proteins have been reported to interact specifically with the CBD, thus defining the specific subcellular functions of myosin VI. The crystal structure determination of the myosin VI CBD/Dab2 (an endocytic adaptor protein Disabled-2 that is a cargo) complex shows that the Myosin-VI_CBD forms a cargo-induced dimer, suggesting that the motor undergoes monomer-to-dimer conversion that is dependent upon cargo binding. In the absence of cargo myosin VI exists as a stable monomer. This cargo binding-mediated monomer-to-dimer conversion mechanism adopted by myosin VI may be shared by other unconventional myosins, such as myosin VII and myosin X [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth B], B [auth I]	Calmodulin-1	cytoskeletal protein binding titin binding protein binding binding enzyme regulator activity protein phosphatase activator activity enzyme activator activity phosphatase activator activity molecular function activator activity phosphatase regulator activity molecular function regulator activity protein phosphatase regulator activity enzyme binding adenylate cyclase binding cytoskeletal protein binding titin binding protein binding binding enzyme regulator activity protein phosphatase activator activity enzyme activator activity phosphatase activator activity molecular function activator activity phosphatase regulator activity molecular function regulator activity protein phosphatase regulator activity enzyme binding adenylate cyclase binding phosphatidylinositol 3-kinase binding nitric-oxide synthase regulator activity molecular function inhibitor activity channel regulator activity transporter inhibitor activity calcium channel inhibitor activity ion channel inhibitor activity ion channel regulator activity calcium channel regulator activity transporter regulator activity channel inhibitor activity cyclase regulator activity cyclase activator activity adenylate cyclase regulator activity adenylate cyclase activator activity protein serine/threonine kinase activator activity kinase activator activity protein kinase activator activity protein kinase regulator activity kinase regulator activity nitric-oxide synthase binding cation binding ion binding calcium ion binding metal ion binding small molecule binding protein domain specific binding signaling receptor binding type 3 metabotropic glutamate receptor binding glutamate receptor binding G protein-coupled receptor binding G protein-coupled glutamate receptor binding transmembrane transporter binding kinase binding protein kinase binding calcium-dependent protein binding	organelle localization by membrane tethering localization organelle localization cellular process membrane docking heart process multicellular organismal process system process regulation of biological process regulation of heart contraction regulation of system process biological regulation circulatory system process regulation of blood circulation organelle localization by membrane tethering localization organelle localization cellular process membrane docking heart process multicellular organismal process system process regulation of biological process regulation of heart contraction regulation of system process biological regulation circulatory system process regulation of blood circulation regulation of multicellular organismal process regulation of biological quality heart contraction blood circulation regulation of heart rate regulation of calcium ion transmembrane transporter activity regulation of calcium ion transport regulation of localization regulation of cellular process negative regulation of ion transmembrane transporter activity negative regulation of calcium ion transmembrane transporter activity intracellular calcium ion homeostasis negative regulation of biological process negative regulation of ryanodine-sensitive calcium-release channel activity negative regulation of transport calcium ion transport negative regulation of cation transmembrane transport monoatomic cation homeostasis monoatomic cation transport intracellular monoatomic ion homeostasis regulation of release of sequestered calcium ion into cytosol regulation of monoatomic ion transport inorganic ion transmembrane transport establishment of localization regulation of cation channel activity inorganic cation transmembrane transport maintenance of location transmembrane transport regulation of molecular function release of sequestered calcium ion into cytosol regulation of transmembrane transport chemical homeostasis negative regulation of calcium ion transmembrane transport cellular localization inorganic ion homeostasis transport negative regulation of cation channel activity homeostatic process monoatomic ion transmembrane transport negative regulation of monoatomic ion transport positive regulation of biological process regulation of transmembrane transporter activity calcium ion homeostasis regulation of monoatomic ion transmembrane transport negative regulation of sequestering of calcium ion metal ion transport negative regulation of transmembrane transport regulation of transporter activity maintenance of location in cell regulation of calcium ion transmembrane transport monoatomic cation transmembrane transport positive regulation of sequestering of calcium ion negative regulation of monoatomic ion transmembrane transport negative regulation of release of sequestered calcium ion into cytosol intracellular monoatomic cation homeostasis negative regulation of cellular process monoatomic ion homeostasis monoatomic ion transport intracellular chemical homeostasis regulation of metal ion transport regulation of sequestering of calcium ion positive regulation of cellular process regulation of monoatomic ion transmembrane transporter activity calcium ion transmembrane import into cytosol regulation of transport sequestering of calcium ion negative regulation of transporter activity negative regulation of molecular function negative regulation of calcium ion transport cellular homeostasis regulation of ryanodine-sensitive calcium-release channel activity regulation of monoatomic cation transmembrane transport calcium ion transmembrane transport sarcoplasmic reticulum calcium ion transport release of sequestered calcium ion into cytosol by sarcoplasmic reticulum release of sequestered calcium ion into cytosol by endoplasmic reticulum regulation of release of sequestered calcium ion into cytosol by sarcoplasmic reticulum cellular component disassembly catabolic process macroautophagy protein-containing complex organization cellular metabolic process autophagy protein-containing complex disassembly cellular catabolic process cellular component organization autophagosome maturation autophagosome membrane docking metabolic process cellular component organization or biogenesis process utilizing autophagic mechanism cellular response to interferon-beta response to peptide response to interferon-beta response to stimulus response to chemical response to cytokine cellular response to cytokine stimulus regulation of cytokinesis regulation of cell cycle process cytokinesis regulation of cell division cell division cell cycle regulation of cell cycle cell cycle process mitochondrion-endoplasmic reticulum membrane tethering import into cell presynaptic endocytosis vesicle-mediated transport vesicle-mediated transport in synapse establishment of localization in cell endocytosis cell cycle G2/M phase transition mitotic cell cycle process G2/M transition of mitotic cell cycle cell cycle phase transition mitotic cell cycle mitotic cell cycle phase transition regulation of cardiac muscle contraction cardiac muscle contraction muscle contraction muscle system process regulation of muscle system process striated muscle contraction regulation of striated muscle contraction regulation of muscle contraction biological process involved in interspecies interaction between organisms immune response response to other organism defense response response to type II interferon defense response to symbiont response to external stimulus cellular response to type II interferon response to biotic stimulus immune system process defense response to other organism response to stress innate immune response response to external biotic stimulus cellular response to stimulus positive regulation of cell communication cell surface receptor signaling pathway via STAT positive regulation of signal transduction signaling positive regulation of receptor signaling pathway via STAT regulation of signal transduction positive regulation of receptor signaling pathway via JAK-STAT cell communication positive regulation of response to stimulus regulation of receptor signaling pathway via JAK-STAT signal transduction regulation of signaling cell surface receptor signaling pathway regulation of response to stimulus regulation of cell communication regulation of receptor signaling pathway via STAT cell surface receptor signaling pathway via JAK-STAT positive regulation of signaling regulation of action potential regulation of cardiac muscle cell action potential action potential cardiac muscle cell action potential regulation of membrane potential protein dephosphorylation regulation of protein modification process positive regulation of protein metabolic process positive regulation of cellular metabolic process positive regulation of phosphate metabolic process regulation of primary metabolic process positive regulation of metabolic process positive regulation of protein modification process regulation of phosphate metabolic process phosphate-containing compound metabolic process positive regulation of macromolecule metabolic process protein metabolic process protein modification process phosphorus metabolic process organonitrogen compound metabolic process positive regulation of phosphorus metabolic process positive regulation of dephosphorylation regulation of dephosphorylation regulation of protein dephosphorylation dephosphorylation regulation of protein metabolic process primary metabolic process regulation of cellular metabolic process positive regulation of protein dephosphorylation regulation of macromolecule metabolic process macromolecule modification regulation of phosphorus metabolic process macromolecule metabolic process regulation of metabolic process detection of stimulus response to metal ion detection of chemical stimulus detection of calcium ion response to calcium ion	intracellular organelle intracellular anatomical structure cytoskeleton spindle organelle intracellular non-membrane-bounded organelle spindle pole cellular anatomical entity microtubule cytoskeleton non-membrane-bounded organelle cytoplasm cytosol membrane-bounded organelle cell projection intracellular organelle intracellular anatomical structure cytoskeleton spindle organelle intracellular non-membrane-bounded organelle spindle pole cellular anatomical entity microtubule cytoskeleton non-membrane-bounded organelle cytoplasm cytosol membrane-bounded organelle cell projection sperm midpiece cilium 9+2 motile cilium sperm flagellum motile cilium plasma membrane bounded cell projection protein-containing complex transmembrane transporter complex membrane membrane protein complex cation channel complex transporter complex calcium channel complex monoatomic ion channel complex axon synapse neuron projection axon terminus presynapse distal axon calyx of Held cell junction neuron projection terminus sarcomere contractile muscle fiber supramolecular fiber myofibril supramolecular polymer supramolecular complex myelin sheath centrosome microtubule organizing center catalytic complex growth cone site of polarized growth nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen nucleoplasm organelle lumen nuclear lumen voltage-gated potassium channel complex plasma membrane protein complex plasma membrane potassium channel complex cell periphery polymeric cytoskeletal fiber spindle microtubule microtubule
C [auth A]	Unconventional myosin-VI	cytoskeletal protein binding actin binding protein-containing complex binding protein binding binding actin filament binding cytoskeletal motor activity adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding cytoskeletal protein binding actin binding protein-containing complex binding protein binding binding actin filament binding cytoskeletal motor activity 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 ADP binding calmodulin binding identical protein binding minus-end directed microfilament motor activity microfilament motor activity ATP-dependent activity	response to stimulus response to chemical response to xenobiotic stimulus protein localization localization cellular localization cellular macromolecule localization macromolecule localization cellular process multicellular organismal process system process sensory perception nervous system process sensory perception of sound response to stimulus response to chemical response to xenobiotic stimulus protein localization localization cellular localization cellular macromolecule localization macromolecule localization cellular process multicellular organismal process system process sensory perception nervous system process sensory perception of sound sensory perception of mechanical stimulus cellular developmental process sensory organ development epidermis development epithelial cell differentiation hair cell differentiation neurogenesis multicellular organism development neuron differentiation inner ear development cell differentiation anatomical structure development system development developmental process mechanoreceptor differentiation epithelium development epidermal cell differentiation ear development animal organ development inner ear auditory receptor cell differentiation nervous system development tissue development inner ear receptor cell differentiation generation of neurons cellular component organization organelle organization actin cytoskeleton organization actin filament organization actin filament-based process cellular component organization or biogenesis supramolecular fiber organization cytoskeleton organization actin filament-based movement ear morphogenesis embryonic organ morphogenesis embryonic morphogenesis embryo development anatomical structure morphogenesis sensory organ morphogenesis inner ear morphogenesis animal organ morphogenesis embryonic organ development import into cell transport endocytosis establishment of localization vesicle-mediated transport establishment of protein localization nitrogen compound transport intracellular transport protein transport establishment of localization in cell intracellular protein transport regulation of localization regulation of biological process regulation of transport secretion biological regulation regulation of secretion cellular response to stimulus regulation of cellular process signaling signal transduction by p53 class mediator DNA damage response, signal transduction by p53 class mediator intracellular signal transduction cell communication cellular response to stress DNA damage response response to stress signal transduction in response to DNA damage signal transduction	clathrin-coated pit membrane cellular anatomical entity endomembrane system apical part of cell membrane-bounded organelle intracellular anatomical structure nuclear membrane nucleus intracellular membrane-bounded organelle intracellular organelle organelle envelope organelle nuclear envelope clathrin-coated pit membrane cellular anatomical entity endomembrane system apical part of cell membrane-bounded organelle intracellular anatomical structure nuclear membrane nucleus intracellular membrane-bounded organelle intracellular organelle organelle envelope organelle nuclear envelope organelle membrane extracellular exosome extracellular vesicle extracellular organelle extracellular region extracellular space vesicle extracellular membrane-bounded organelle cytoskeleton intracellular non-membrane-bounded organelle actin cytoskeleton non-membrane-bounded organelle cytoplasm cytosol intracellular vesicle cytoplasmic vesicle endocytic vesicle coated vesicle membrane cytoplasmic vesicle membrane bounding membrane of organelle vesicle membrane clathrin-coated vesicle coated vesicle clathrin-coated vesicle membrane protein-containing complex myosin complex unconventional myosin complex vacuole autophagosome vacuolar membrane lytic vacuole lytic vacuole membrane lysosomal membrane lysosome Golgi apparatus ruffle cell projection cell leading edge plasma membrane bounded cell projection actin-based cell projection microvillus perinuclear region of cytoplasm polymeric cytoskeletal fiber actin filament supramolecular fiber supramolecular polymer supramolecular complex filamentous actin filopodium cell periphery cell cortex plasma membrane leading edge membrane ruffle membrane plasma membrane region cell projection membrane membrane-enclosed lumen intracellular organelle lumen nucleoplasm organelle lumen nuclear lumen endosome

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth B], B [auth I]	IPR002048	EF-hand domain	Domain
A [auth B], B [auth I]	IPR018247	EF-Hand 1, calcium-binding site	Binding Site
A [auth B], B [auth I]	IPR050145	Calmodulin and Centrin Calcium-Binding Families	Family
A [auth B], B [auth I]	IPR011992	EF-hand domain pair	Homologous Superfamily
C [auth A]	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily
C [auth A]	IPR032412	Myosin VI, cargo binding domain	Domain
C [auth A]	IPR004009	Myosin, N-terminal, SH3-like	Domain
C [auth A]	IPR036961	Kinesin motor domain superfamily	Homologous Superfamily
C [auth A]	IPR049016	Myosin VI, lever arm	Domain
C [auth A]	IPR036114	Class VI myosin, motor domain	Domain
C [auth A]	IPR001609	Myosin head, motor domain	Domain
C [auth A]	IPR008989	Myosin S1 fragment, N-terminal	Homologous Superfamily

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
C [auth A]	Pharos: Q9UM54	nonsyndromic genetic deafness autosomal recessive nonsyndromic deafness 37 autosomal dominant nonsyndromic deafness 22 cardiomyopathy malignant mesothelioma Organic Mental Disorders, Substance-Induced pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia progressive supranuclear palsy spina bifida autosomal dominant nonsyndromic deafness 1 substance dependence breast cancer hypertrophic cardiomyopathy lung adenocarcinoma medulloblastoma nonsyndromic genetic deafness autosomal recessive nonsyndromic deafness 37 autosomal dominant nonsyndromic deafness 22 cardiomyopathy malignant mesothelioma Organic Mental Disorders, Substance-Induced pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia progressive supranuclear palsy spina bifida autosomal dominant nonsyndromic deafness 1 substance dependence breast cancer hypertrophic cardiomyopathy lung adenocarcinoma medulloblastoma ovarian cancer Pick disease prostate carcinoma substance abuse breast fibroadenoma tuberculosis drug dependence ductal breast carcinoma in situ interstitial cystitis lung cancer pancreatic intraductal papillary-mucinous carcinoma substance-related disorder Down syndrome gastric carcinoma invasive ductal breast carcinoma

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 R01GM133198.