BP

GO:0002934

desmosome organization

A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of a desmosome. A desmosome is a patch-like intercellular junction found in vertebrate tissues, consisting of parallel zones of two cell membranes, separated by an space of 25-35 nm, and having dense fibrillar plaques in the subjacent cytoplasm.

IMP

BP

GO:0003165

Purkinje myocyte development

The process whose specific outcome is the progression of a Purkinje myocyte over time, from its formation to the mature structure. The Purkinje myocyte (also known as cardiac Purkinje fiber) is part of the cardiac conduction system that receives signals from the bundle of His and innervates the ventricular cardiac muscle.

IMP

BP

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.

IDA

BP

GO:0007156

homophilic cell adhesion via plasma membrane adhesion molecules

The attachment of a plasma membrane adhesion molecule in one cell to an identical molecule in an adjacent cell.

IDA

BP

GO:0032570

response to progesterone

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 progesterone stimulus.

IEA

BP

GO:0060135

maternal process involved in female pregnancy

A reproductive process occurring in the mother that allows an embryo or fetus to develop within it.

IEA

BP

GO:0086073

bundle of His cell-Purkinje myocyte adhesion involved in cell communication

The attachment of a bundle of His cell to a Purkinje myocyte via adhesion molecules that results in the cells being juxtaposed so that they can communicate.

IMP

BP

GO:0086091

regulation of heart rate by cardiac conduction

A cardiac conduction process that modulates the frequency or rate of heart contraction.

IMP

BP

GO:0098911

regulation of ventricular cardiac muscle cell action potential

Any process that modulates the frequency, rate or extent of action potential creation, propagation or termination in a ventricular cardiac muscle cell contributing to the regulation of its contraction. This typically occurs via modulation of the activity or expression of voltage-gated ion channels.

IMP

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.

IDA|TAS

CC

GO:0005911

cell-cell junction

A cell junction that forms a connection between two or more cells in a multicellular organism; excludes direct cytoplasmic junctions such as ring canals.

TAS

CC

GO:0009986

cell surface

The external part of the cell wall and/or plasma membrane.

IDA

CC

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.

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:0016324

apical plasma membrane

The region of the plasma membrane located at the apical end of the cell.

IEA

CC

GO:0016328

lateral plasma membrane

The portion of the plasma membrane at the lateral side of the cell. In epithelial cells, lateral plasma membranes are on the sides of cells which lie at the interface of adjacent cells.

IEA

CC

GO:0030057

desmosome

A cell-cell junction in which: on the cytoplasmic surface of each interacting plasma membrane is a dense plaque composed of a mixture of intracellular anchor proteins; a bundle of keratin intermediate filaments is attached to the surface of each plaque; transmembrane adhesion proteins of the cadherin family bind to the plaques and interact through their extracellular domains to hold the adjacent membranes together by a Ca2+-dependent mechanism.

IDA

CC

GO:0070062

extracellular exosome

A membrane-bounded vesicle that is released into the extracellular region by fusion of the limiting endosomal membrane of a multivesicular body with the plasma membrane. Extracellular exosomes, also simply called exosomes, have a diameter of about 40-100 nm.

IDA

MF

GO:0005509

calcium ion binding

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

IEA

MF

GO:0050839

cell adhesion molecule binding

Interacting selectively and non-covalently with a cell adhesion molecule.

IPI

MF

GO:0086083

cell adhesive protein binding involved in bundle of His cell-Purkinje myocyte communication

Interacting selectively and non-covalently with any protein or protein complex that results in the connection of a bundle of His cell with a Purkinje myocyte and contributes to the communication between the two cells.

IC