Asymmetric Unit(hide GO term definitions)
Chain A,D ( TNNC1_HUMAN | P63316)
molecular function |
| GO:0051015 | | actin filament binding | | Interacting selectively and non-covalently with an actin filament, also known as F-actin, a helical filamentous polymer of globular G-actin subunits. |
| GO:0005509 | | calcium ion binding | | Interacting selectively and non-covalently with calcium ions (Ca2+). |
| GO:0048306 | | calcium-dependent protein binding | | Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules), in the presence of calcium. |
| GO:0046872 | | metal ion binding | | Interacting selectively and non-covalently with any metal ion. |
| GO:0005515 | | protein binding | | Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules). |
| GO:0042803 | | protein homodimerization activity | | Interacting selectively and non-covalently with an identical protein to form a homodimer. |
| GO:0031013 | | troponin I binding | | Interacting selectively and non-covalently with troponin I, the inhibitory subunit of the troponin complex. |
| GO:0031014 | | troponin T binding | | Interacting selectively and non-covalently with troponin T, the tropomyosin-binding subunit of the troponin complex. |
biological process |
| GO:0060048 | | cardiac muscle contraction | | Muscle contraction of cardiac muscle tissue. |
| GO:0002086 | | diaphragm contraction | | A process in which force is generated within involuntary skeletal muscle tissue, resulting in a change in muscle geometry. This process occurs in the diaphragm. Force generation involves a chemo-mechanical energy conversion step that is carried out by the actin/myosin complex activity, which generates force through ATP hydrolysis. The diaphragm is a striated muscle that is necessary for the process of respiratory gaseous exchange. |
| GO:0030049 | | muscle filament sliding | | The sliding of actin thin filaments and myosin thick filaments past each other in muscle contraction. This involves a process of interaction of myosin located on a thick filament with actin located on a thin filament. During this process ATP is split and forces are generated. |
| GO:0043462 | | regulation of ATPase activity | | Any process that modulates the rate of ATP hydrolysis by an ATPase. |
| GO:0006937 | | regulation of muscle contraction | | Any process that modulates the frequency, rate or extent of muscle contraction. |
| GO:0032972 | | regulation of muscle filament sliding speed | | Any process that modulates the velocity of muscle filament sliding. |
| GO:0010038 | | response to metal ion | | Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a metal ion stimulus. |
| GO:0014883 | | transition between fast and slow fiber | | The process of conversion of fast-contracting muscle fibers to a slower character. This may involve slowing of contractile rate, slow myosin gene induction, increase in oxidative metabolic properties, altered electrophysiology and altered innervation. This process also regulates skeletal muscle adapatation. |
| GO:0055010 | | ventricular cardiac muscle tissue morphogenesis | | The process in which the anatomical structures of cardiac ventricle muscle is generated and organized. |
cellular component |
| GO:0015629 | | actin cytoskeleton | | The part of the cytoskeleton (the internal framework of a cell) composed of actin and associated proteins. Includes actin cytoskeleton-associated complexes. |
| GO:0043292 | | contractile fiber | | Fibers, composed of actin, myosin, and associated proteins, found in cells of smooth or striated muscle. |
| GO:0005829 | | cytosol | | The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes. |
| GO:0005739 | | mitochondrion | | A semiautonomous, self replicating organelle that occurs in varying numbers, shapes, and sizes in the cytoplasm of virtually all eukaryotic cells. It is notably the site of tissue respiration. |
| GO:0005654 | | nucleoplasm | | That part of the nuclear content other than the chromosomes or the nucleolus. |
| GO:0005861 | | troponin complex | | A complex of accessory proteins (typically troponin T, troponin I and troponin C) found associated with actin in muscle thin filaments; involved in calcium regulation of muscle contraction. |
Chain B,E ( TNNT2_HUMAN | P45379)
molecular function |
| GO:0016887 | | ATPase activity | | Catalysis of the reaction: ATP + H2O = ADP + phosphate + 2 H+. May or may not be coupled to another reaction. |
| GO:0003779 | | actin binding | | Interacting selectively and non-covalently with monomeric or multimeric forms of actin, including actin filaments. |
| GO:0005515 | | protein binding | | Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules). |
| GO:0030674 | | protein binding, bridging | | The binding activity of a molecule that brings together two or more protein molecules, or a protein and another macromolecule or complex, through a selective, non-covalent, often stoichiometric interaction, permitting those molecules to function in a coordinated way. |
| GO:0005523 | | tropomyosin binding | | Interacting selectively and non-covalently with tropomyosin, a protein associated with actin filaments both in cytoplasm and, in association with troponin, in the thin filament of striated muscle. |
| GO:0030172 | | troponin C binding | | Interacting selectively and non-covalently with troponin C, the calcium-binding subunit of the troponin complex. |
| GO:0031013 | | troponin I binding | | Interacting selectively and non-covalently with troponin I, the inhibitory subunit of the troponin complex. |
biological process |
| GO:0051764 | | actin crosslink formation | | The process in which two or more actin filaments are connected together by proteins that act as crosslinks between the filaments. The crosslinked filaments may be on the same or differing axes. |
| GO:0060048 | | cardiac muscle contraction | | Muscle contraction of cardiac muscle tissue. |
| GO:0006936 | | muscle contraction | | A process in which force is generated within muscle tissue, resulting in a change in muscle geometry. Force generation involves a chemo-mechanical energy conversion step that is carried out by the actin/myosin complex activity, which generates force through ATP hydrolysis. |
| GO:0030049 | | muscle filament sliding | | The sliding of actin thin filaments and myosin thick filaments past each other in muscle contraction. This involves a process of interaction of myosin located on a thick filament with actin located on a thin filament. During this process ATP is split and forces are generated. |
| GO:0032780 | | negative regulation of ATPase activity | | Any process that stops or reduces the rate of ATP hydrolysis by an ATPase. |
| GO:0032781 | | positive regulation of ATPase activity | | Any process that activates or increases the rate of ATP hydrolysis by an ATPase. |
| GO:0051291 | | protein heterooligomerization | | The process of creating protein oligomers, compounds composed of a small number, usually between three and ten, of component monomers that are not all identical. Oligomers may be formed by the polymerization of a number of monomers or the depolymerization of a large protein polymer. |
| GO:0008016 | | regulation of heart contraction | | Any process that modulates the frequency, rate or extent of heart contraction. Heart contraction is the process in which the heart decreases in volume in a characteristic way to propel blood through the body. |
| GO:0006937 | | regulation of muscle contraction | | Any process that modulates the frequency, rate or extent of muscle contraction. |
| GO:0032972 | | regulation of muscle filament sliding speed | | Any process that modulates the velocity of muscle filament sliding. |
| GO:0051592 | | response to calcium ion | | Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a calcium ion stimulus. |
| GO:0055010 | | ventricular cardiac muscle tissue morphogenesis | | The process in which the anatomical structures of cardiac ventricle muscle is generated and organized. |
cellular component |
| GO:0005829 | | cytosol | | The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes. |
| GO:0030016 | | myofibril | | The contractile element of skeletal and cardiac muscle; a long, highly organized bundle of actin, myosin, and other proteins that contracts by a sliding filament mechanism. |
| GO:0030017 | | sarcomere | | The repeating unit of a myofibril in a muscle cell, composed of an array of overlapping thick and thin filaments between two adjacent Z discs. |
| GO:0005865 | | striated muscle thin filament | | Filaments formed of actin and associated proteins; attached to Z discs at either end of sarcomeres in myofibrils. |
| GO:0005861 | | troponin complex | | A complex of accessory proteins (typically troponin T, troponin I and troponin C) found associated with actin in muscle thin filaments; involved in calcium regulation of muscle contraction. |
Chain C,F ( TNNI3_HUMAN | P19429)
molecular function |
| GO:0003779 | | actin binding | | Interacting selectively and non-covalently with monomeric or multimeric forms of actin, including actin filaments. |
| GO:0019855 | | calcium channel inhibitor activity | | Stops, prevents, or reduces the activity of a calcium channel. |
| GO:0048306 | | calcium-dependent protein binding | | Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules), in the presence of calcium. |
| GO:0046872 | | metal ion binding | | Interacting selectively and non-covalently with any metal ion. |
| GO:0005515 | | protein binding | | Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules). |
| GO:0019904 | | protein domain specific binding | | Interacting selectively and non-covalently with a specific domain of a protein. |
| GO:0019901 | | protein kinase binding | | Interacting selectively and non-covalently with a protein kinase, any enzyme that catalyzes the transfer of a phosphate group, usually from ATP, to a protein substrate. |
| GO:0030172 | | troponin C binding | | Interacting selectively and non-covalently with troponin C, the calcium-binding subunit of the troponin complex. |
| GO:0031014 | | troponin T binding | | Interacting selectively and non-covalently with troponin T, the tropomyosin-binding subunit of the troponin complex. |
biological process |
| GO:0060048 | | cardiac muscle contraction | | Muscle contraction of cardiac muscle tissue. |
| GO:0006874 | | cellular calcium ion homeostasis | | Any process involved in the maintenance of an internal steady state of calcium ions at the level of a cell. |
| GO:0060047 | | heart contraction | | The multicellular organismal process in which the heart decreases in volume in a characteristic way to propel blood through the body. |
| GO:0007507 | | heart development | | The process whose specific outcome is the progression of the heart over time, from its formation to the mature structure. The heart is a hollow, muscular organ, which, by contracting rhythmically, keeps up the circulation of the blood. |
| GO:0030049 | | muscle filament sliding | | The sliding of actin thin filaments and myosin thick filaments past each other in muscle contraction. This involves a process of interaction of myosin located on a thick filament with actin located on a thin filament. During this process ATP is split and forces are generated. |
| GO:0032780 | | negative regulation of ATPase activity | | Any process that stops or reduces the rate of ATP hydrolysis by an ATPase. |
| GO:1903779 | | regulation of cardiac conduction | | Any process that modulates the frequency, rate or extent of cardiac conduction. |
| GO:0006937 | | regulation of muscle contraction | | Any process that modulates the frequency, rate or extent of muscle contraction. |
| GO:0006940 | | regulation of smooth muscle contraction | | Any process that modulates the frequency, rate or extent of smooth muscle contraction. |
| GO:0001980 | | regulation of systemic arterial blood pressure by ischemic conditions | | The process that modulates blood pressure by the detection of carbon dioxide levels in the brain stem. Increased levels activate the sympathetic vasoconstrictor mechanism increasing the force with which blood flows through the circulatory system. |
| GO:0003009 | | skeletal muscle contraction | | A process in which force is generated within skeletal muscle tissue, resulting in a change in muscle geometry. Force generation involves a chemo-mechanical energy conversion step that is carried out by the actin/myosin complex activity, which generates force through ATP hydrolysis. In the skeletal muscle, the muscle contraction takes advantage of an ordered sarcomeric structure and in most cases it is under voluntary control. |
| GO:0006941 | | striated muscle contraction | | A process in which force is generated within striated muscle tissue, resulting in the shortening of the muscle. Force generation involves a chemo-mechanical energy conversion step that is carried out by the actin/myosin complex activity, which generates force through ATP hydrolysis. Striated muscle is a type of muscle in which the repeating units (sarcomeres) of the contractile myofibrils are arranged in registry throughout the cell, resulting in transverse or oblique striations observable at the level of the light microscope. |
| GO:0001570 | | vasculogenesis | | The differentiation of endothelial cells from progenitor cells during blood vessel development, and the de novo formation of blood vessels and tubes. |
| GO:0055010 | | ventricular cardiac muscle tissue morphogenesis | | The process in which the anatomical structures of cardiac ventricle muscle is generated and organized. |
cellular component |
| GO:0043292 | | contractile fiber | | Fibers, composed of actin, myosin, and associated proteins, found in cells of smooth or striated muscle. |
| GO:0005737 | | cytoplasm | | All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures. |
| GO:0005829 | | cytosol | | The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes. |
| GO:0030016 | | myofibril | | The contractile element of skeletal and cardiac muscle; a long, highly organized bundle of actin, myosin, and other proteins that contracts by a sliding filament mechanism. |
| GO:0030017 | | sarcomere | | The repeating unit of a myofibril in a muscle cell, composed of an array of overlapping thick and thin filaments between two adjacent Z discs. |
| GO:0005861 | | troponin complex | | A complex of accessory proteins (typically troponin T, troponin I and troponin C) found associated with actin in muscle thin filaments; involved in calcium regulation of muscle contraction. |
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