| molecular function |
| | GO:0001671 | | ATPase activator activity | | Binds to and increases the ATP hydrolysis activity of an ATPase. |
| | GO:0003779 | | actin binding | | Interacting selectively and non-covalently with monomeric or multimeric forms of actin, including actin filaments. |
| | GO:0042802 | | identical protein binding | | Interacting selectively and non-covalently with an identical protein or proteins. |
| | GO:0046872 | | metal ion binding | | Interacting selectively and non-covalently with any metal ion. |
| | GO:0017022 | | myosin binding | | Interacting selectively and non-covalently with any part of a myosin complex; myosins are any of a superfamily of molecular motor proteins that bind to actin and use the energy of ATP hydrolysis to generate force and movement along actin filaments. |
| | GO:0032036 | | myosin heavy chain binding | | Interacting selectively and non-covalently with a heavy chain of a myosin complex. |
| | 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:0008307 | | structural constituent of muscle | | The action of a molecule that contributes to the structural integrity of a muscle fiber. |
| | GO:0031432 | | titin binding | | Interacting selectively and non-covalently with titin, any of a family of giant proteins found in striated and smooth muscle. In striated muscle, single titin molecules span half the sarcomere, with their N- and C-termini in the Z-disc and M-line, respectively. |
| biological process |
| | GO:0060048 | | cardiac muscle contraction | | Muscle contraction of cardiac muscle tissue. |
| | GO:0007155 | | cell adhesion | | The attachment of a cell, either to another cell or to an underlying substrate such as the extracellular matrix, via cell adhesion molecules. |
| | GO:0003007 | | heart morphogenesis | | The developmental process in which the heart is generated and organized. 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:0032781 | | positive regulation of ATPase activity | | Any process that activates or increases the rate of ATP hydrolysis by an ATPase. |
| | GO:0032971 | | regulation of muscle filament sliding | | Any process that modulates the frequency, rate or extent of muscle filament sliding. |
| | GO:0006942 | | regulation of striated muscle contraction | | Any process that modulates the frequency, rate or extent of striated muscle contraction. |
| | 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:0031672 | | A band | | The dark-staining region of a sarcomere, in which myosin thick filaments are present; the center is traversed by the paler H zone, which in turn contains the M line. |
| | GO:0014705 | | C zone | | A region of the A band in which myosin-binding protein C is located and that can be seen by electron microscopy. This is a functional zone that also includes myosin. |
| | 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:0032982 | | myosin filament | | A protein complex containing myosin heavy chains, plus associated light chains and other proteins, in which the myosin heavy chains are arranged into a filament. |
| | 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:0005863 | | striated muscle myosin thick filament | | Bipolar filaments formed of polymers of a muscle-specific myosin II isoform, found in the middle of sarcomeres in myofibrils. |