8Q4G | pdb_00008q4g

Thin filament from FIB milled relaxed left ventricular mouse myofibrils

External Resource: Annotation

Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
G, H	PF00261	Tropomyosin (Tropomyosin)	Tropomyosin	-	Coiled-coil
A, B, C, D, E A, B, C, D, E, F, I	PF00022	Actin (Actin)	Actin	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
G, H	Tropomyosin alpha-1 chain	cytoskeletal protein binding actin binding protein-containing complex binding protein binding binding actin filament binding identical protein binding protein homodimerization activity protein dimerization activity protein heterodimerization activity structural constituent of cytoskeleton structural molecule activity	heart process multicellular organismal process system process circulatory system process cardiac muscle contraction heart contraction muscle contraction muscle system process blood circulation striated muscle contraction ventricular cardiac muscle tissue morphogenesis heart morphogenesis striated muscle tissue development muscle structure development heart process multicellular organismal process system process circulatory system process cardiac muscle contraction heart contraction muscle contraction muscle system process blood circulation striated muscle contraction ventricular cardiac muscle tissue morphogenesis heart morphogenesis striated muscle tissue development muscle structure development multicellular organism development ventricular cardiac muscle tissue development anatomical structure development cardiac chamber development animal organ morphogenesis muscle tissue development muscle organ development system development developmental process heart development cardiac chamber morphogenesis cardiac muscle tissue development animal organ development tissue development muscle tissue morphogenesis circulatory system development anatomical structure morphogenesis tissue morphogenesis cardiac ventricle morphogenesis cardiac muscle tissue morphogenesis cardiac ventricle development muscle organ morphogenesis embryo development ending in birth or egg hatching chordate embryonic development embryo development in utero embryonic development regulation of systemic arterial blood pressure mediated by a chemical signal regulation of heart contraction regulation of system process positive regulation of biological process positive regulation of blood pressure positive regulation of blood circulation regulation of systemic arterial blood pressure by norepinephrine-epinephrine positive regulation of blood pressure by epinephrine-norepinephrine regulation of multicellular organismal process regulation of biological quality regulation of heart rate regulation of biological process regulation of heart rate by chemical signal regulation of blood pressure biological regulation positive regulation of heart rate positive regulation of heart rate by epinephrine-norepinephrine positive regulation of heart contraction regulation of blood circulation regulation of systemic arterial blood pressure positive regulation of heart rate by epinephrine positive regulation of multicellular organismal process	intracellular anatomical structure intracellular membraneless organelle intracellular organelle cellular anatomical structure organelle membraneless organelle contractile muscle fiber cytoplasm supramolecular fiber myofibril supramolecular polymer supramolecular complex cytoskeleton actin cytoskeleton intracellular anatomical structure intracellular membraneless organelle intracellular organelle cellular anatomical structure organelle membraneless organelle contractile muscle fiber cytoplasm supramolecular fiber myofibril supramolecular polymer supramolecular complex cytoskeleton actin cytoskeleton striated muscle thin filament protein-containing complex myofilament muscle thin filament tropomyosin sarcomere
A, B, C, D, E A, B, C, D, E, F, I	Actin, alpha cardiac muscle 1	hydrolase activity catalytic activity 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 hydrolase activity catalytic activity 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 cytoskeletal protein binding protein binding myosin binding polypeptide conformation or assembly isomerase activity isomerase activity cytoskeletal motor activity microfilament motor activity macromolecular conformation isomerase activity ATP-dependent activity	response to stimulus response to chemical response to xenobiotic stimulus developmental process mesenchyme migration multicellular organismal process mesenchyme morphogenesis animal organ development mesenchyme development tissue development tissue morphogenesis anatomical structure morphogenesis tissue migration anatomical structure development response to stimulus response to chemical response to xenobiotic stimulus developmental process mesenchyme migration multicellular organismal process mesenchyme morphogenesis animal organ development mesenchyme development tissue development tissue morphogenesis anatomical structure morphogenesis tissue migration anatomical structure development animal organ morphogenesis heart development cardiac muscle tissue development heart morphogenesis muscle tissue morphogenesis striated muscle tissue development circulatory system development muscle structure development multicellular organism development cardiac muscle tissue morphogenesis muscle organ development muscle tissue development muscle organ morphogenesis system development regulation of biological process regulation of cellular process negative regulation of programmed cell death regulation of apoptotic process biological regulation negative regulation of biological process regulation of programmed cell death cell death negative regulation of apoptotic process negative regulation of cellular process cellular process apoptotic process programmed cell death regulation of biosynthetic process positive regulation of biological process regulation of macromolecule metabolic process gene expression macromolecule biosynthetic process positive regulation of macromolecule biosynthetic process regulation of gene expression positive regulation of metabolic process biosynthetic process positive regulation of gene expression positive regulation of biosynthetic process regulation of macromolecule biosynthetic process metabolic process positive regulation of macromolecule metabolic process macromolecule metabolic process regulation of metabolic process positive regulation of cellular process cellular developmental process cellular component assembly involved in morphogenesis skeletal myofibril assembly cell development membraneless organelle assembly muscle cell differentiation cellular component organization cellular component biogenesis striated muscle cell development cellular anatomical entity morphogenesis cellular component assembly muscle cell development cell differentiation actin filament-based process cellular component organization or biogenesis skeletal muscle thin filament assembly actin cytoskeleton organization actomyosin structure organization organelle assembly actin filament organization organelle organization myofibril assembly anatomical structure formation involved in morphogenesis striated muscle cell differentiation supramolecular fiber organization cytoskeleton organization cytoplasmic actin-based contraction involved in cell motility cell motility actin-mediated cell contraction actin filament-based movement response to alcohol response to oxygen-containing compound response to ethanol actin-myosin filament sliding heart process system process circulatory system process cardiac muscle contraction heart contraction muscle contraction muscle system process blood circulation striated muscle contraction cardiac muscle cell development cardiac cell development cardiac muscle cell differentiation cardiocyte differentiation cardiac myofibril assembly	cell projection cellular anatomical structure cell leading edge plasma membrane bounded cell projection lamellipodium synapse cell junction glutamatergic synapse polymeric cytoskeletal fiber intracellular anatomical structure actin filament intracellular membraneless organelle actin cytoskeleton intracellular organelle cell projection cellular anatomical structure cell leading edge plasma membrane bounded cell projection lamellipodium synapse cell junction glutamatergic synapse polymeric cytoskeletal fiber intracellular anatomical structure actin filament intracellular membraneless organelle actin cytoskeleton intracellular organelle cytoskeleton organelle membraneless organelle supramolecular fiber supramolecular polymer supramolecular complex cell body sarcomere I band contractile muscle fiber cytoplasm myofibril actin-based cell projection filopodium

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
G, H	IPR000533	Tropomyosin	Family
A, B, C, D, E A, B, C, D, E, F, I	IPR020902	Actin/actin-like conserved site	Conserved Site
A, B, C, D, E A, B, C, D, E, F, I	IPR043129	ATPase, nucleotide binding domain	Homologous Superfamily
A, B, C, D, E A, B, C, D, E, F, I	IPR004001	Actin, conserved site	Conserved Site
A, B, C, D, E A, B, C, D, E, F, I	IPR004000	Actin family	Family

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.