molecular function |
| GO:0005524 | | ATP binding | | Interacting selectively and non-covalently with ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator. |
| GO:0005088 | | Ras guanyl-nucleotide exchange factor activity | | Stimulates the exchange of guanyl nucleotides associated with a GTPase of the Ras superfamily. Under normal cellular physiological conditions, the concentration of GTP is higher than that of GDP, favoring the replacement of GDP by GTP in association with the GTPase. |
| GO:0005516 | | calmodulin binding | | Interacting selectively and non-covalently with calmodulin, a calcium-binding protein with many roles, both in the calcium-bound and calcium-free states. |
| GO:0004683 | | calmodulin-dependent protein kinase activity | | Catalysis of the reactions: ATP + a protein serine = ADP + protein serine phosphate; and ATP + a protein threonine = ADP + protein threonine phosphate. These reactions require the presence of calcium-bound calmodulin. |
| GO:0044325 | | ion channel binding | | Interacting selectively and non-covalently with one or more specific sites on an ion channel, a protein complex that spans a membrane and forms a water-filled channel across the phospholipid bilayer allowing selective ion transport down its electrochemical gradient. |
| GO:0016301 | | kinase activity | | Catalysis of the transfer of a phosphate group, usually from ATP, to a substrate molecule. |
| GO:0050998 | | nitric-oxide synthase binding | | Interacting selectively and non-covalently with the enzyme nitric-oxide synthase. |
| GO:0000166 | | nucleotide binding | | Interacting selectively and non-covalently with a nucleotide, any compound consisting of a nucleoside that is esterified with (ortho)phosphate or an oligophosphate at any hydroxyl group on the ribose or deoxyribose. |
| 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:0004672 | | protein kinase activity | | Catalysis of the phosphorylation of an amino acid residue in a protein, usually according to the reaction: a protein + ATP = a phosphoprotein + ADP. |
| GO:0004674 | | protein serine/threonine kinase activity | | Catalysis of the reactions: ATP + protein serine = ADP + protein serine phosphate, and ATP + protein threonine = ADP + protein threonine phosphate. |
| GO:0019871 | | sodium channel inhibitor activity | | Stops, prevents, or reduces the activity of a sodium channel. |
| 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. |
| GO:0016740 | | transferase activity | | Catalysis of the transfer of a group, e.g. a methyl group, glycosyl group, acyl group, phosphorus-containing, or other groups, from one compound (generally regarded as the donor) to another compound (generally regarded as the acceptor). Transferase is the systematic name for any enzyme of EC class 2. |
biological process |
| GO:0000082 | | G1/S transition of mitotic cell cycle | | The mitotic cell cycle transition by which a cell in G1 commits to S phase. The process begins with the build up of G1 cyclin-dependent kinase (G1 CDK), resulting in the activation of transcription of G1 cyclins. The process ends with the positive feedback of the G1 cyclins on the G1 CDK which commits the cell to S phase, in which DNA replication is initiated. |
| GO:0000165 | | MAPK cascade | | An intracellular protein kinase cascade containing at least a MAPK, a MAPKK and a MAP3K. The cascade can also contain two additional tiers: the upstream MAP4K and the downstream MAP Kinase-activated kinase (MAPKAPK). The kinases in each tier phosphorylate and activate the kinases in the downstream tier to transmit a signal within a cell. |
| GO:0006816 | | calcium ion transport | | The directed movement of calcium (Ca) ions into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore. |
| GO:0086003 | | cardiac muscle cell contraction | | The actin filament-based process in which cytoplasmic actin filaments slide past one another resulting in contraction of a cardiac muscle cell. |
| GO:0060048 | | cardiac muscle contraction | | Muscle contraction of cardiac muscle tissue. |
| GO:0061049 | | cell growth involved in cardiac muscle cell development | | The growth of a cardiac muscle cell, where growth contributes to the progression of the cell over time from its initial formation to its mature state. |
| GO:0030007 | | cellular potassium ion homeostasis | | Any process involved in the maintenance of an internal steady state of potassium ions at the level of a cell. |
| GO:0071277 | | cellular response to calcium ion | | Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a calcium ion stimulus. |
| GO:0032469 | | endoplasmic reticulum calcium ion homeostasis | | Any process involved in the maintenance of an internal steady state of calcium ions within the endoplasmic reticulum of a cell or between the endoplasmic reticulum and its surroundings. |
| GO:0060333 | | interferon-gamma-mediated signaling pathway | | A series of molecular signals initiated by the binding of interferon-gamma to a receptor on the surface of a cell, and ending with regulation of a downstream cellular process, e.g. transcription. Interferon gamma is the only member of the type II interferon found so far. |
| GO:1902306 | | negative regulation of sodium ion transmembrane transport | | Any process that stops, prevents or reduces the frequency, rate or extent of sodium ion transmembrane transport. |
| GO:2000650 | | negative regulation of sodium ion transmembrane transporter activity | | Any process that stops, prevents or reduces the frequency, rate or extent of sodium ion transmembrane transporter activity. |
| GO:0018105 | | peptidyl-serine phosphorylation | | The phosphorylation of peptidyl-serine to form peptidyl-O-phospho-L-serine. |
| GO:0018107 | | peptidyl-threonine phosphorylation | | The phosphorylation of peptidyl-threonine to form peptidyl-O-phospho-L-threonine. |
| GO:0016310 | | phosphorylation | | The process of introducing a phosphate group into a molecule, usually with the formation of a phosphoric ester, a phosphoric anhydride or a phosphoric amide. |
| GO:0070374 | | positive regulation of ERK1 and ERK2 cascade | | Any process that activates or increases the frequency, rate or extent of signal transduction mediated by the ERK1 and ERK2 cascade. |
| GO:0043547 | | positive regulation of GTPase activity | | Any process that activates or increases the activity of a GTPase. |
| GO:0035022 | | positive regulation of Rac protein signal transduction | | Any process that activates or increases the frequency, rate or extent of Rac protein signal transduction. |
| GO:0010666 | | positive regulation of cardiac muscle cell apoptotic process | | Any process that increases the rate or extent of cardiac cell apoptotic process, a form of programmed cell death induced by external or internal signals that trigger the activity of proteolytic caspases whose actions dismantle a cardiac muscle cell and result in its death. |
| GO:0010613 | | positive regulation of cardiac muscle hypertrophy | | Any process that increases the rate, frequency or extent of the enlargement or overgrowth of all or part of the heart due to an increase in size (not length) of individual cardiac muscle fibers, without cell division. |
| GO:0014911 | | positive regulation of smooth muscle cell migration | | Any process that activates, maintains or increases the frequency, rate or extent of smooth muscle cell migration. |
| GO:0048661 | | positive regulation of smooth muscle cell proliferation | | Any process that activates or increases the rate or extent of smooth muscle cell proliferation. |
| GO:0046777 | | protein autophosphorylation | | The phosphorylation by a protein of one or more of its own amino acid residues (cis-autophosphorylation), or residues on an identical protein (trans-autophosphorylation). |
| GO:0051259 | | protein oligomerization | | The process of creating protein oligomers, compounds composed of a small number, usually between three and ten, of component monomers; protein oligomers may be composed of different or identical monomers. Oligomers may be formed by the polymerization of a number of monomers or the depolymerization of a large protein polymer. |
| GO:0006468 | | protein phosphorylation | | The process of introducing a phosphate group on to a protein. |
| GO:0010389 | | regulation of G2/M transition of mitotic cell cycle | | Any process that modulates the rate or extent of progression from G2 phase to M phase of the mitotic cell cycle. |
| GO:1902514 | | regulation of calcium ion transmembrane transport via high voltage-gated calcium channel | | Any process that modulates the frequency, rate or extent of generation of calcium ion transmembrane transport via high voltage-gated calcium channel. |
| GO:0098901 | | regulation of cardiac muscle cell action potential | | Any process that modulates the frequency, rate or extent of action potential creation, propagation or termination in a cardiac muscle cell. This typically occurs via modulation of the activity or expression of voltage-gated ion channels. |
| GO:0098909 | | regulation of cardiac muscle cell action potential involved in regulation of contraction | | Any process that modulates the frequency, rate or extent of action potential creation, propagation or termination in a cardiac muscle cell contributing to the regulation of its contraction. |
| GO:0010881 | | regulation of cardiac muscle contraction by regulation of the release of sequestered calcium ion | | Any process that modulates the frequency, rate or extent of cardiac muscle contraction via the regulation of the release of sequestered calcium ion by sarcoplasmic reticulum into cytosol. The sarcoplasmic reticulum is the endoplasmic reticulum of striated muscle, specialised for the sequestration of calcium ions that are released upon receipt of a signal relayed by the T tubules from the neuromuscular junction. |
| GO:0010649 | | regulation of cell communication by electrical coupling | | Any process that modulates the frequency, rate or extent of cell communication via electrical coupling. Cell communication via electrical coupling is the process that mediates signaling interactions between one cell and another cell by transfer of current between their adjacent cytoplasms via intercellular protein channels. |
| GO:1901844 | | regulation of cell communication by electrical coupling involved in cardiac conduction | | Any process that modulates the frequency, rate or extent of cell communication by electrical coupling involved in cardiac conduction. |
| GO:0001558 | | regulation of cell growth | | Any process that modulates the frequency, rate, extent or direction of cell growth. |
| GO:0060341 | | regulation of cellular localization | | Any process that modulates the frequency, rate or extent of a process in which a cell, a substance, or a cellular entity is transported to, or maintained in a specific location within or in the membrane of a cell. |
| GO:1900034 | | regulation of cellular response to heat | | Any process that modulates the frequency, rate or extent of cellular response to heat. |
| 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:0086091 | | regulation of heart rate by cardiac conduction | | A cardiac conduction process that modulates the frequency or rate of heart contraction. |
| GO:1901725 | | regulation of histone deacetylase activity | | Any process that modulates the frequency, rate or extent of histone deacetylase activity. |
| GO:0003254 | | regulation of membrane depolarization | | Any process that modulates the rate, frequency or extent of membrane depolarization. Membrane depolarization is the process in which membrane potential changes in the depolarizing direction from the resting potential, usually from negative to positive. |
| GO:1901897 | | regulation of relaxation of cardiac muscle | | Any process that modulates the frequency, rate or extent of relaxation of cardiac muscle. |
| GO:0010880 | | regulation of release of sequestered calcium ion into cytosol by sarcoplasmic reticulum | | Any process that modulates the rate, frequency or extent of release of sequestered calcium ion into cytosol by the sarcoplasmic reticulum, the process in which the release of sequestered calcium ion by sarcoplasmic reticulum into cytosol occurs via calcium release channels. |
| GO:0060314 | | regulation of ryanodine-sensitive calcium-release channel activity | | Any process that modulates the activity of a ryanodine-sensitive calcium-release channel. The ryanodine-sensitive calcium-release channel catalyzes the transmembrane transfer of a calcium ion by a channel that opens when a ryanodine class ligand has been bound by the channel complex or one of its constituent parts. |
| GO:0002028 | | regulation of sodium ion transport | | Any process that modulates the frequency, rate or extent of the directed movement of sodium ions (Na+) into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore. |
| GO:0002026 | | regulation of the force of heart contraction | | Any process that modulates the extent of heart contraction, changing the force with which blood is propelled. |
| GO:0006357 | | regulation of transcription from RNA polymerase II promoter | | Any process that modulates the frequency, rate or extent of transcription from an RNA polymerase II promoter. |
| GO:0055119 | | relaxation of cardiac muscle | | The process in which the extent of cardiac muscle contraction is reduced. |
| GO:0001666 | | response to hypoxia | | 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 stimulus indicating lowered oxygen tension. Hypoxia, defined as a decline in O2 levels below normoxic levels of 20.8 - 20.95%, results in metabolic adaptation at both the cellular and organismal level. |
cellular component |
| GO:0030315 | | T-tubule | | Invagination of the plasma membrane of a muscle cell that extends inward from the cell surface around each myofibril. The ends of T-tubules make contact with the sarcoplasmic reticulum membrane. |
| GO:0043194 | | axon initial segment | | Portion of the axon proximal to the neuronal cell body, at the level of the axon hillock. The action potentials that propagate along the axon are generated at the level of this initial segment. |
| GO:0034704 | | calcium channel complex | | An ion channel complex through which calcium ions pass. |
| 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:0030666 | | endocytic vesicle membrane | | The lipid bilayer surrounding an endocytic vesicle. |
| GO:0014704 | | intercalated disc | | A complex cell-cell junction at which myofibrils terminate in cardiomyocytes; mediates mechanical and electrochemical integration between individual cardiomyocytes. The intercalated disc contains regions of tight mechanical attachment (fasciae adherentes and desmosomes) and electrical coupling (gap junctions) between adjacent cells. |
| GO:0016020 | | membrane | | A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it. |
| GO:0031594 | | neuromuscular junction | | The junction between the axon of a motor neuron and a muscle fiber. In response to the arrival of action potentials, the presynaptic button releases molecules of neurotransmitters into the synaptic cleft. These diffuse across the cleft and transmit the signal to the postsynaptic membrane of the muscle fiber, leading to a change in post-synaptic potential. |
| GO:0043025 | | neuronal cell body | | The portion of a neuron that includes the nucleus, but excludes cell projections such as axons and dendrites. |
| GO:0005654 | | nucleoplasm | | That part of the nuclear content other than the chromosomes or the nucleolus. |
| GO:0005634 | | nucleus | | A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent. |
| GO:0048471 | | perinuclear region of cytoplasm | | Cytoplasm situated near, or occurring around, the nucleus. |
| GO:0005886 | | plasma membrane | | The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins. |
| GO:0043234 | | protein complex | | A stable macromolecular complex composed (only) of two or more polypeptide subunits along with any covalently attached molecules (such as lipid anchors or oligosaccharide) or non-protein prosthetic groups (such as nucleotides or metal ions). Prosthetic group in this context refers to a tightly bound cofactor. The component polypeptide subunits may be identical. |
| GO:0042383 | | sarcolemma | | The outer membrane of a muscle cell, consisting of the plasma membrane, a covering basement membrane (about 100 nm thick and sometimes common to more than one fiber), and the associated loose network of collagen fibers. |
| GO:0016529 | | sarcoplasmic reticulum | | A fine reticular network of membrane-limited elements that pervades the sarcoplasm of a muscle cell; continuous over large portions of the cell and with the nuclear envelope; that part of the endoplasmic reticulum specialized for calcium release, uptake and storage. |
| GO:0033017 | | sarcoplasmic reticulum membrane | | The lipid bilayer surrounding the sarcoplasmic reticulum. |