GO Term : GO:0043194 axon initial segment GO

Namespace:  cellular_component Obsolete:  false
description  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.

0 Cross References

0 Data Sets

1 Ontology

Name
GO

0 Ontology Annotations

11 Parents

Identifier Name Description
GO:0044464 cell part Any constituent part of a cell, the basic structural and functional unit of all organisms.
GO:0005575 cellular_component The part of a cell or its extracellular environment in which a gene product is located. A gene product may be located in one or more parts of a cell and its location may be as specific as a particular macromolecular complex, that is, a stable, persistent association of macromolecules that function together.
GO:0005623 cell The basic structural and functional unit of all organisms. Includes the plasma membrane and any external encapsulating structures such as the cell wall and cell envelope.
GO:0044463 cell projection part Any constituent part of a cell projection, a prolongation or process extending from a cell, e.g. a flagellum or axon.
GO:0042995 cell projection A prolongation or process extending from a cell, e.g. a flagellum or axon.
GO:0097458 neuron part Any constituent part of a neuron, the basic cellular unit of nervous tissue. A typical neuron consists of a cell body (often called the soma), an axon, and dendrites. Their purpose is to receive, conduct, and transmit impulses in the nervous system.
GO:0043005 neuron projection A prolongation or process extending from a nerve cell, e.g. an axon or dendrite.
GO:0030424 axon The long process of a neuron that conducts nerve impulses, usually away from the cell body to the terminals and varicosities, which are sites of storage and release of neurotransmitter.
GO:0033267 axon part A part of an axon, a cell projection of a neuron.
GO:0044304 main axon The main axonal trunk, as opposed to the collaterals; i.e., excluding collaterals, terminal, spines, or dendrites.
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.

15 Relations

Relationship
Parent Term . Identifier

Child Term . Identifier
part of GO:0044304 GO:0043194
is_a GO:0033267 GO:0043194
is_a GO:0044464 GO:0043194
is_a GO:0097458 GO:0043194
is_a GO:0044463 GO:0043194
part of GO:0005623 GO:0043194
part of GO:0043005 GO:0043194
part of GO:0042995 GO:0043194
part of GO:0005575 GO:0043194
part of GO:0044464 GO:0043194
part of GO:0044463 GO:0043194
part of GO:0097458 GO:0043194
is_a GO:0005575 GO:0043194
part of GO:0030424 GO:0043194
part of GO:0033267 GO:0043194

1 Synonyms

Name Type
initial segment synonym