Annotations: 4XA3

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	PCI	e4xa3A2	A: alpha bundles	X: Lipocalins/Streptavidin	H: Fibronectin type I module-like	T: Fibronectin type I module	F: PCI	ECOD (develop294)
B	Glyco_hydro_31_2nd	e4xa3B2	A: alpha bundles	X: Lipocalins/Streptavidin	H: Fibronectin type I module-like	T: Fibronectin type I module	F: Glyco_hydro_31_2nd	ECOD (develop294)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF03271	EB1-like C-terminal motif (EB1)	EB1-like C-terminal motif	-	Family
A, B	PF11418	Phi29 scaffolding protein (Scaffolding_pro)	Phi29 scaffolding protein	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Gp7-MYH7(1361-1425)-Eb1 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 anion 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 anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding calmodulin binding polypeptide conformation or assembly isomerase activity isomerase activity cytoskeletal motor activity microfilament motor activity macromolecular conformation isomerase activity catalytic activity ATP-dependent activity DNA binding nucleic acid binding RNA binding protein serine/threonine kinase binding kinase binding enzyme binding protein kinase binding cell adhesion molecule binding cadherin binding microtubule plus-end binding microtubule binding tubulin binding identical protein binding	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 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 muscle contraction muscle system process striated muscle contraction nucleoside phosphate metabolic process ribose phosphate metabolic process purine nucleoside triphosphate metabolic process ATP metabolic process carbohydrate derivative metabolic process primary metabolic process nucleotide metabolic process purine-containing compound metabolic process nucleobase-containing compound metabolic process purine nucleotide metabolic process ribonucleotide metabolic process organophosphate metabolic process nucleobase-containing small molecule metabolic process purine ribonucleoside triphosphate metabolic process phosphate-containing compound metabolic process metabolic process cellular process small molecule metabolic process nucleoside triphosphate metabolic process purine ribonucleotide metabolic process phosphorus metabolic process regulation of the force of heart contraction regulation of muscle adaptation striated muscle adaptation response to stimulus transition between fast and slow fiber regulation of skeletal muscle adaptation regulation of muscle system process muscle adaptation regulation of response to stimulus skeletal muscle adaptation slow-twitch skeletal muscle fiber contraction twitch skeletal muscle contraction multicellular organismal movement musculoskeletal movement regulation of twitch skeletal muscle contraction regulation of skeletal muscle contraction regulation of slow-twitch skeletal muscle fiber contraction nervous system process neuromuscular process skeletal muscle contraction voluntary skeletal muscle contraction regulation of striated muscle contraction regulation of muscle contraction muscle filament sliding actin filament-based process actin-mediated cell contraction actin filament-based movement actin-myosin filament sliding cardiac muscle contraction developmental process heart development multicellular organism development anatomical structure development animal organ development adult heart development circulatory system development system development ventricular cardiac muscle tissue morphogenesis heart morphogenesis striated muscle tissue development muscle structure development ventricular cardiac muscle tissue development cardiac chamber development animal organ morphogenesis muscle tissue development muscle organ development cardiac chamber morphogenesis cardiac muscle tissue development tissue development muscle tissue morphogenesis anatomical structure morphogenesis tissue morphogenesis cardiac ventricle morphogenesis cardiac muscle tissue morphogenesis cardiac ventricle development muscle organ morphogenesis regulation of the force of skeletal muscle contraction regulation of skeletal muscle contraction by chemo-mechanical energy conversion muscle hypertrophy striated muscle hypertrophy cardiac muscle adaptation response to stress cardiac muscle hypertrophy cardiac muscle hypertrophy in response to stress muscle hypertrophy in response to stress virion assembly viral process viral life cycle cellular component organization microtubule bundle formation organelle organization microtubule cytoskeleton organization microtubule-based process cellular component organization or biogenesis cytoskeleton organization protein localization to microtubule cytoskeleton localization protein localization to cytoskeleton protein localization to organelle macromolecule localization protein localization to microtubule organizing center intracellular protein localization protein localization to centrosome regulation of cytoskeleton organization regulation of microtubule polymerization or depolymerization regulation of cellular component organization regulation of cellular process negative regulation of biological process cellular component biogenesis regulation of protein-containing complex assembly cellular component assembly microtubule polymerization or depolymerization negative regulation of cellular process protein-containing complex assembly negative regulation of protein polymerization negative regulation of supramolecular fiber organization protein polymerization negative regulation of cellular component organization negative regulation of microtubule polymerization or depolymerization protein-containing complex organization negative regulation of cytoskeleton organization regulation of microtubule-based process negative regulation of microtubule polymerization microtubule polymerization regulation of cellular component biogenesis regulation of organelle organization negative regulation of protein-containing complex assembly negative regulation of organelle organization regulation of protein polymerization regulation of microtubule polymerization regulation of supramolecular fiber organization supramolecular fiber organization regulation of microtubule cytoskeleton organization mitotic metaphase chromosome alignment mitotic cell cycle metaphase chromosome alignment chromosome localization organelle localization mitotic sister chromatid segregation cell cycle chromosome segregation cell cycle process mitotic nuclear division attachment of spindle microtubules to kinetochore organelle fission attachment of mitotic spindle microtubules to kinetochore chromosome organization sister chromatid segregation nuclear division mitotic cell cycle process nuclear chromosome segregation cell division cell migration cell motility organelle assembly membraneless organelle assembly spindle assembly spindle organization plasma membrane bounded cell projection organization cell projection organization plasma membrane bounded cell projection assembly cilium assembly non-motile cilium assembly cilium organization cell projection assembly protein localization to astral microtubule protein localization to microtubule protein localization to cytoplasmic microtubule protein localization to spindle microtubule protein localization to mitotic spindle establishment of organelle localization cellular localization spindle localization establishment or maintenance of cell polarity establishment of mitotic spindle localization establishment of spindle localization establishment of spindle orientation establishment of localization in cell microtubule cytoskeleton organization involved in mitosis establishment of localization establishment of cell polarity establishment of mitotic spindle orientation positive regulation of organelle organization positive regulation of cellular component organization positive regulation of biological process positive regulation of protein-containing complex assembly positive regulation of protein polymerization positive regulation of cellular process positive regulation of microtubule polymerization or depolymerization positive regulation of cellular component biogenesis positive regulation of cytoskeleton organization positive regulation of supramolecular fiber organization positive regulation of microtubule polymerization	intracellular anatomical structure intracellular membraneless organelle Z disc sarcomere intracellular organelle I band cellular anatomical structure organelle membraneless organelle contractile muscle fiber cytoplasm supramolecular fiber myofibril supramolecular polymer intracellular anatomical structure intracellular membraneless organelle Z disc sarcomere intracellular organelle I band cellular anatomical structure organelle membraneless organelle contractile muscle fiber cytoplasm supramolecular fiber myofibril supramolecular polymer supramolecular complex protein-containing complex actin cytoskeleton myosin complex cytoskeleton myosin II complex muscle myosin complex myosin filament actin filament bundle actomyosin stress fiber contractile actin filament bundle viral capsid virion component viral scaffold anchoring junction cell junction focal adhesion cell-substrate junction spindle spindle midzone microtubule cytoskeleton centrosome microtubule organizing center polymeric cytoskeletal fiber mitotic spindle aster spindle microtubule cytoplasmic microtubule mitotic spindle astral microtubule end microtubule end mitotic spindle astral microtubule astral microtubule microtubule microtubule plus-end cytosol cell periphery cell projection membrane plasma membrane plasma membrane region cell projection membrane plasma membrane bounded cell projection membrane-bounded organelle Golgi apparatus intracellular membrane-bounded organelle endomembrane system cell cortex cortical cytoskeleton cortical microtubule cytoskeleton mitotic spindle pole spindle pole cilium ciliary basal body mitotic spindle microtubule

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR036961	Kinesin motor domain superfamily	Homologous Superfamily
A, B	IPR001609	Myosin head, motor domain-like	Domain
A, B	IPR000048	IQ motif, EF-hand binding site	Binding Site
A, B	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily
A, B	IPR004009	Myosin, SH3 domain	Domain
A, B	IPR014751	DNA repair protein XRCC4-like, C-terminal	Homologous Superfamily
A, B	IPR002928	Myosin tail	Domain
A, B	IPR008989	Myosin S1 fragment, N-terminal	Homologous Superfamily
A, B	IPR038032	Capsid assembly scaffolding protein Gp7	Homologous Superfamily
A, B	IPR024374	Bacteriophage phi-29 scaffolding protein Gp7	Family
A, B	IPR001715	Calponin homology domain	Domain
A, B	IPR004953	EB1, C-terminal	Domain
A, B	IPR027328	Microtubule-associated protein RP/EB	Family
A, B	IPR036133	EB1, C-terminal domain superfamily	Homologous Superfamily
A, B	IPR036872	CH domain superfamily	Homologous Superfamily

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B	Pharos: Q15691	myopathy, myosin storage, autosomal dominant dilated cardiomyopathy myopathy, myosin storage, autosomal recessive hypertrophic cardiomyopathy left ventricular noncompaction congenital fiber-type disproportion myopathy dilated cardiomyopathy 1S MYH7-related skeletal myopathy distal myopathy Ebstein anomaly hypertrophic cardiomyopathy 1 cardiomyopathy myocardial infarction tibial muscular dystrophy congenital structural myopathy myopathy, myosin storage, autosomal dominant dilated cardiomyopathy myopathy, myosin storage, autosomal recessive hypertrophic cardiomyopathy left ventricular noncompaction congenital fiber-type disproportion myopathy dilated cardiomyopathy 1S MYH7-related skeletal myopathy distal myopathy Ebstein anomaly hypertrophic cardiomyopathy 1 cardiomyopathy myocardial infarction tibial muscular dystrophy congenital structural myopathy atrial fibrillation MYH7-related late-onset scapuloperoneal muscular dystrophy centronuclear myopathy coronary stenosis familial dilated cardiomyopathy heart disease arthrogryposis LEFT VENTRICULAR NONCOMPACTION 5 autosomal dominant centronuclear myopathy scapuloperoneal myopathy Charcot-Marie-Tooth disease familial hypertrophic cardiomyopathy hyaline body myopathy malignant ependymoma psoriasis X-linked centronuclear myopathy dilated cardiomyopathy 1A familial isolated dilated cardiomyopathy autosomal recessive centronuclear myopathy myopathy myotonia congenita restrictive cardiomyopathy tubular aggregate myopathy X-linked Emery-Dreifuss muscular dystrophy Weight Gain primitive neuroectodermal tumor astrocytic tumor coronary artery disease inflammatory bowel disease lymphoplasmacytic lymphoma medulloblastoma oligodendroglioma plasma cell myeloma atypical teratoid rhabdoid tumor dermatomyositis juvenile dermatomyositis malignant ependymoma myocardial ischemia osteosarcoma polycystic ovary syndrome breast carcinoma glioblastoma large cell medulloblastoma malignant glioma nicotine dependence ovarian cancer

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.