Annotations: 4PD3

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Myosin_N	e4pd3A2	A: beta barrels	X: SH3	H: SH3	T: SH3	F: Myosin_N	ECOD (1.6)
A	Spectrin	e4pd3A3	A: alpha bundles	X: Spectrin repeat-like	H: Spectrin repeat (From Topology)	T: Spectrin repeat	F: Spectrin	ECOD (1.6)
A	Myosin_head	e4pd3A4	A: a/b three-layered sandwiches	X: P-loop domains-like	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: Myosin_head	ECOD (1.6)
B	Myosin_N	e4pd3B2	A: beta barrels	X: SH3	H: SH3	T: SH3	F: Myosin_N	ECOD (1.6)
B	Spectrin	e4pd3B3	A: alpha bundles	X: Spectrin repeat-like	H: Spectrin repeat (From Topology)	T: Spectrin repeat	F: Spectrin	ECOD (1.6)
B	Myosin_head	e4pd3B4	A: a/b three-layered sandwiches	X: P-loop domains-like	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: Myosin_head	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF00435	Spectrin repeat (Spectrin)	Spectrin repeat	Spectrin repeat-domains are found in several proteins involved in cytoskeletal structure. These include spectrin, alpha-actinin and dystrophin. The sequence repeat used in this family is taken from the structural repeat in reference [2]. The spectr ...	Spectrin repeat-domains are found in several proteins involved in cytoskeletal structure. These include spectrin, alpha-actinin and dystrophin. The sequence repeat used in this family is taken from the structural repeat in reference [2]. The spectrin domain- repeat forms a three helix bundle. The second helix is interrupted by proline in some sequences. The repeats are defined by a characteristic tryptophan (W) residue at position 17 in helix A and a leucine (L) at 2 residues from the carboxyl end of helix C. Although the domain occurs in multiple repeats along sequences, the domains are actually stable on their own - ie they act, biophysically, like domains rather than repeats that along function when aggregated.	Domain
A, B	PF00063	Myosin head (motor domain) (Myosin_head)	Myosin head (motor domain)	-	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Nonmuscle myosin heavy chain B, Alpha-actinin A Chimera Protein	cytoskeletal protein binding actin binding protein-containing complex binding protein binding binding actin filament 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 cytoskeletal protein binding actin binding protein-containing complex binding protein binding binding actin filament 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 ADP binding calmodulin binding RNA binding mRNA 5'-UTR binding nucleic acid binding mRNA binding RNA stem-loop binding cytoskeletal motor activity microfilament motor activity ATP-dependent activity cation binding calcium ion binding metal ion binding protein-macromolecule adaptor activity molecular adaptor activity structural constituent of cytoskeleton structural molecule activity	mitotic cell cycle process cytoskeleton-dependent cytokinesis mitotic cytokinesis cellular process cytokinesis cell division cell cycle mitotic cell cycle cell cycle process cellular component organization organelle organization actomyosin structure organization actin cytoskeleton organization actin filament-based process mitotic cell cycle process cytoskeleton-dependent cytokinesis mitotic cytokinesis cellular process cytokinesis cell division cell cycle mitotic cell cycle cell cycle process cellular component organization organelle organization actomyosin structure organization actin cytoskeleton organization actin filament-based process cellular component organization or biogenesis cytoskeleton organization developmental process regulation of biological process regulation of developmental process biological regulation regulation of cell shape cell morphogenesis regulation of cell morphogenesis anatomical structure morphogenesis anatomical structure development regulation of biological quality regulation of anatomical structure morphogenesis protein localization regulation of localization establishment of protein localization cellular localization nitrogen compound transport regulation of cellular process regulation of protein localization transport positive regulation of biological process positive regulation of establishment of protein localization positive regulation of secretion by cell protein localization to extracellular region positive regulation of protein transport localization regulation of secretion by cell secretion by cell positive regulation of secretion cellular macromolecule localization positive regulation of cellular process regulation of transport secretion organic substance transport regulation of establishment of protein localization establishment of protein localization to extracellular region export from cell regulation of protein transport protein secretion establishment of localization positive regulation of protein secretion regulation of protein secretion regulation of secretion positive regulation of transport protein transport regulation of cellular localization macromolecule localization positive regulation of protein localization cell adhesion actin filament-based movement import into cell phagocytosis endocytosis vesicle-mediated transport response to osmotic stress hyperosmotic response response to stimulus response to stress response to abiotic stimulus response to extracellular stimulus cellular response to stimulus response to nutrient levels response to external stimulus cellular response to starvation cell communication cellular response to nutrient levels cellular response to stress cellular response to extracellular stimulus response to starvation cellular response to external stimulus actin filament organization actin crosslink formation supramolecular fiber organization sorocarp development biological process involved in intraspecies interaction between organisms socially cooperative development cell motility cellular component biogenesis cellular component assembly actin filament bundle organization actin filament bundle assembly	midbody cellular anatomical entity cell projection cell leading edge plasma membrane bounded cell projection lamellipodium cell periphery cell cortex intracellular anatomical structure cytoplasm intracellular organelle cytoskeleton organelle intracellular non-membrane-bounded organelle midbody cellular anatomical entity cell projection cell leading edge plasma membrane bounded cell projection lamellipodium cell periphery cell cortex intracellular anatomical structure cytoplasm intracellular organelle cytoskeleton organelle intracellular non-membrane-bounded organelle actin cytoskeleton actomyosin non-membrane-bounded organelle extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle extracellular region extracellular space vesicle extracellular membrane-bounded organelle cytosol myosin filament supramolecular fiber supramolecular polymer supramolecular complex cell division site cleavage furrow membrane plasma membrane plasma membrane region protein-containing complex myosin complex myosin II filament myosin II complex actin filament bundle stress fiber contractile actin filament bundle nucleus intracellular membrane-bounded organelle macropinocytic cup cell junction pseudopodium intracellular vesicle phagocytic vesicle cytoplasmic vesicle endocytic vesicle extracellular matrix external encapsulating structure vacuole contractile vacuole complex contractile vacuole cortical cytoskeleton cortical actin cytoskeleton polymeric cytoskeletal fiber actin filament

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR036961	Kinesin motor domain superfamily	Homologous Superfamily
A, B	IPR000048	IQ motif, EF-hand binding site	Binding Site
A, B	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily
A, B	IPR001609	Myosin head, motor domain	Domain
A, B	IPR002928	Myosin tail	Domain
A, B	IPR004009	Myosin, N-terminal, SH3-like	Domain
A, B	IPR008989	Myosin S1 fragment, N-terminal	Homologous Superfamily
A, B	IPR001715	Calponin homology domain	Domain
A, B	IPR014837	EF-hand, Ca insensitive	Domain
A, B	IPR002048	EF-hand domain	Domain
A, B	IPR011992	EF-hand domain pair	Homologous Superfamily
A, B	IPR018247	EF-Hand 1, calcium-binding site	Binding Site
A, B	IPR001589	Actinin-type actin-binding domain, conserved site	Conserved Site
A, B	IPR036872	CH domain superfamily	Homologous Superfamily
A, B	IPR018159	Spectrin/alpha-actinin	Repeat
A, B	IPR002017	Spectrin repeat	Repeat

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B	Pharos: P35580	focal segmental glomerulosclerosis non-small cell lung carcinoma pancreatic ductal adenocarcinoma pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia thrombocytopenia due to immune destruction acute myeloid leukemia Duchenne muscular dystrophy Hyalinosis, Segmental Glomerular juvenile dermatomyositis lung cancer malignant pancreatic neoplasm osteosarcoma pancreatic intraductal papillary-mucinous carcinoma Parkinson disease ulcerative colitis focal segmental glomerulosclerosis non-small cell lung carcinoma pancreatic ductal adenocarcinoma pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia thrombocytopenia due to immune destruction acute myeloid leukemia Duchenne muscular dystrophy Hyalinosis, Segmental Glomerular juvenile dermatomyositis lung cancer malignant pancreatic neoplasm osteosarcoma pancreatic intraductal papillary-mucinous carcinoma Parkinson disease ulcerative colitis Emery-Dreifuss muscular dystrophy glioblastoma hydrolethalus syndrome large cell medulloblastoma lung carcinoma medulloblastoma ovarian cancer pancreatic intraductal papillary-mucinous neoplasm psoriasis cystic fibrosis head and neck cancer intellectual disability lung adenocarcinoma malignant glioma

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.