BP

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.

IDA

BP

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.

NAS

BP

GO:0007165

signal transduction

The cellular process in which a signal is conveyed to trigger a change in the activity or state of a cell. Signal transduction begins with reception of a signal (e.g. a ligand binding to a receptor or receptor activation by a stimulus such as light), or for signal transduction in the absence of ligand, signal-withdrawal or the activity of a constitutively active receptor. Signal transduction ends with regulation of a downstream cellular process, e.g. regulation of transcription or regulation of a metabolic process. Signal transduction covers signaling from receptors located on the surface of the cell and signaling via molecules located within the cell. For signaling between cells, signal transduction is restricted to events at and within the receiving cell.

NAS

BP

GO:0009791

post-embryonic development

The process whose specific outcome is the progression of the organism over time, from the completion of embryonic development to the mature structure. See embryonic development.

IEA

BP

GO:0010506

regulation of autophagy

Any process that modulates the frequency, rate or extent of autophagy. Autophagy is the process in which cells digest parts of their own cytoplasm.

TAS

BP

GO:0030168

platelet activation

A series of progressive, overlapping events triggered by exposure of the platelets to subendothelial tissue. These events include shape change, adhesiveness, aggregation, and release reactions. When carried through to completion, these events lead to the formation of a stable hemostatic plug.

TAS

BP

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.

IEA

BP

GO:0042045

epithelial fluid transport

The directed movement of fluid across epithelia.

IEA

BP

GO:0048016

inositol phosphate-mediated signaling

Any intracellular signal transduction in which the signal is passed on within the cell via an inositol phosphate. Includes production of the inositol phosphate, and downstream effectors that further transmit the signal within the cell. Inositol phosphates are a group of mono- to poly-phosphorylated inositols, and include inositol monophosphate (IP), inositol trisphosphate (IP3), inositol pentakisphosphate (IP5) and inositol hexaphosphate (IP6).

IEA

BP

GO:0050796

regulation of insulin secretion

Any process that modulates the frequency, rate or extent of the regulated release of insulin.

TAS

BP

GO:0050849

negative regulation of calcium-mediated signaling

Any process that stops, prevents, or reduces the frequency, rate or extent of calcium-mediated signaling.

IDA

BP

GO:0050882

voluntary musculoskeletal movement

The movement of an organism or part of an organism using mechanoreceptors, the nervous system, striated muscle and/or the skeletal system that can be controlled at will.

IEA

BP

GO:0051209

release of sequestered calcium ion into cytosol

The process in which calcium ions sequestered in the endoplasmic reticulum, Golgi apparatus or mitochondria are released into the cytosolic compartment.

ISS

BP

GO:0070059

intrinsic apoptotic signaling pathway in response to endoplasmic reticulum stress

A series of molecular signals in which an intracellular signal is conveyed to trigger the apoptotic death of a cell. The pathway is induced in response to a stimulus indicating endoplasmic reticulum (ER) stress, and ends when the execution phase of apoptosis is triggered. ER stress usually results from the accumulation of unfolded or misfolded proteins in the ER lumen.

ISS

BP

GO:1903779

regulation of cardiac conduction

Any process that modulates the frequency, rate or extent of cardiac conduction.

TAS

CC

GO:0005637

nuclear inner membrane

The inner, i.e. lumen-facing, lipid bilayer of the nuclear envelope.

IEA

CC

GO:0005730

nucleolus

A small, dense body one or more of which are present in the nucleus of eukaryotic cells. It is rich in RNA and protein, is not bounded by a limiting membrane, and is not seen during mitosis. Its prime function is the transcription of the nucleolar DNA into 45S ribosomal-precursor RNA, the processing of this RNA into 5.8S, 18S, and 28S components of ribosomal RNA, and the association of these components with 5S RNA and proteins synthesized outside the nucleolus. This association results in the formation of ribonucleoprotein precursors; these pass into the cytoplasm and mature into the 40S and 60S subunits of the ribosome.

IEA

CC

GO:0005783

endoplasmic reticulum

The irregular network of unit membranes, visible only by electron microscopy, that occurs in the cytoplasm of many eukaryotic cells. The membranes form a complex meshwork of tubular channels, which are often expanded into slitlike cavities called cisternae. The ER takes two forms, rough (or granular), with ribosomes adhering to the outer surface, and smooth (with no ribosomes attached).

NAS

CC

GO:0005789

endoplasmic reticulum membrane

The lipid bilayer surrounding the endoplasmic reticulum.

IBA|TAS

CC

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.

IBA

CC

GO:0005955

calcineurin complex

A heterodimeric calcium ion and calmodulin dependent protein phosphatase composed of catalytic and regulatory subunits; the regulatory subunit is very similar in sequence to calmodulin.

IEA

CC

GO:0014069

postsynaptic density

The postsynaptic density is a region that lies adjacent to the cytoplasmic face of the postsynaptic membrane at an excitatory synapse. It forms an electron-dense disc that consists of a range of proteins with different functions, some of which contact the cytoplasmic domains of ion channels in the postsynaptic membrane. The proteins making up the disc include structural proteins linked to the actin cytoskeleton and signalling machinery, such as protein kinases and phosphatases.

IEA

CC

GO:0016020

membrane

A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.

IDA

CC

GO:0016021

integral component of membrane

The component of a membrane consisting of the gene products and protein complexes having at least some part of their peptide sequence embedded in the hydrophobic region of the membrane.

IEA

CC

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.

IBA

CC

GO:0031088

platelet dense granule membrane

The lipid bilayer surrounding the platelet dense granule.

IDA

CC

GO:0031094

platelet dense tubular network

A network of membrane-bounded compartments found in blood platelets, where they regulate platelet activation by sequestering or releasing calcium. The dense tubular network exists as thin elongated membranes in resting platelets, and undergoes a major ultrastructural change, to a rounded vesicular form, upon addition of thrombin.

IDA

CC

GO:0031095

platelet dense tubular network membrane

The lipid bilayer surrounding the platelet dense tubular network.

TAS

MF

GO:0005220

inositol 1,4,5-trisphosphate-sensitive calcium-release channel activity

Enables the transmembrane transfer of a calcium ion by a channel that opens when inositol 1,4,5-trisphosphate (IP3) has been bound by the channel complex or one of its constituent parts.

ISS|TAS

MF

GO:0005509

calcium ion binding

Interacting selectively and non-covalently with calcium ions (Ca2+).

IBA

MF

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).

IPI

MF

GO:0015085

calcium ion transmembrane transporter activity

Enables the transfer of calcium (Ca) ions from one side of a membrane to the other.

TAS

MF

GO:0015278

calcium-release channel activity

Enables the transmembrane transfer of a calcium ion from intracellular stores by a channel that opens when a specific intracellular ligand has been bound by the channel complex or one of its constituent parts.

ISS

MF

GO:0019855

calcium channel inhibitor activity

Stops, prevents, or reduces the activity of a calcium channel.

IDA

MF

GO:0035091

phosphatidylinositol binding

Interacting selectively and non-covalently with any inositol-containing glycerophospholipid, i.e. phosphatidylinositol (PtdIns) and its phosphorylated derivatives.

IBA|ISS

MF

GO:0070679

inositol 1,4,5 trisphosphate binding

Interacting selectively and non-covalently with inositol 1,4,5 trisphosphate.

IBA