FB2026_02 , released June 18, 2026

CV Term Report

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General Information

Term

GO:0045202

ID (Ontology)

GO:0045202 (Gene Ontology)

Definition

The junction between an axon of one neuron and a dendrite of another neuron, a muscle fiber or a glial cell. As the axon approaches the synapse it enlarges into a specialized structure, the presynaptic terminal bouton, which contains mitochondria and synaptic vesicles. At the tip of the terminal bouton is the presynaptic membrane; facing it, and separated from it by a minute cleft (the synaptic cleft) is a specialized area of membrane on the receiving cell, known as the postsynaptic membrane. In response to the arrival of nerve impulses, the presynaptic terminal bouton secretes molecules of neurotransmitters into the synaptic cleft. These diffuse across the cleft and transmit the signal to the postsynaptic membrane.[ ISBN:0198506732 PubMed:24619342 PubMed:29383328 PubMed:31998110 ]

Also Known As

"synaptic junction"

Comment

Links to External Ontologies

QuickGO data AmiGO data

Annotations

Records annotated with this term OR any of its CHILD TERMS

Full annotation statements including this term (annotations to child terms are NOT included), and relevant FlyBase records

Full annotation statements	Relevant FlyBase reports
Full annotation statements	Alleles	Genes	Constructs
GO:0045202 (all annotations which use CV term, excluding "NOT" statements)	289	105	120
GO:0045202 \| FBcv:0000061	27	--	14
GO:0045202 \| FBcv:0000061 \| FBcv:0000068	2	--	2
GO:0045202 \| FBcv:0000061 \| FBcv:0000311	3	--	--
GO:0045202 \| FBcv:0000068	7	--	6
GO:0045202 \| FBcv:0000068 \| FBdv:00005341	1	--	--
GO:0045202 \| FBcv:0000310	1	--	--
GO:0045202 \| FBcv:0000311	3	--	--
GO:0045202 \| FBcv:0000314	3	--	3
GO:0045202 \| FBcv:0000336	1	--	--
GO:0045202 \| FBcv:0000793 \| FBcv:0000336	1	--	--
GO:0045202 \| FBcv:0007048	1	--	--
GO:0045202 \| FBcv:0007048 \| FBdv:00005336	7	--	--
GO:0045202 \| FBdv:00005289	4	--	2
GO:0045202 \| FBdv:00005336	32	--	15
GO:0045202 \| FBdv:00005341	2	--	--
GO:0045202 \| FBdv:00005341 \| FBcv:0000309	2	--	--
GO:0045202 \| FBdv:00005369	44	--	28
GO:0045202 \| FBdv:00005369 \| FBcv:0000068	6	--	5
GO:0045202 \| FBdv:00005369 \| FBcv:0000068 \| FBcv:0007050	2	--	--
GO:0045202 \| FBdv:00005369 \| FBcv:0007048	7	--	5
GO:0045202 \| FBdv:00007001 \| FBcv:0000068	2	--	--
is_active_in \| GO:0045202	--	44	--
located_in \| GO:0045202	--	62	--

Spanning Tree (Parents/Children)

GO:0110165
 |__GO:0030054__
                GO:0045202  1304 rec.
                 |__GO:0031594 523 rec.
                 |   |__GO:0098520(+)
                 |   |__GO:0098521(+)
                 |   |__GO:0098523(+)
                 |   |__GO:0098527(+) 3 rec.
                 |   |__GO:0098975(+) 20 rec.
                 |__GO:0060076 1 rec.
                 |   |__GO:0098520(+)
                 |   |__GO:0098688
                 |   |__GO:0098985(+)
                 |__GO:0060077
                 |   |__GO:0098521(+)
                 |   |__GO:0098983
                 |__GO:0097060 158 rec.
                 |   |__GO:0032591(+)
                 |   |__GO:0036062 7 rec.
                 |   |__GO:0042734(+) 50 rec.
                 |   |__GO:0045211(+) 114 rec.
                 |   |__GO:0048787(+) 6 rec.
                 |   |__GO:0098835(+) 2 rec.
                 |   |__GO:0098844(+)
                 |   |__GO:0099243(+) 2 rec.
                 |   |__GO:0099634(+) 21 rec.
                 |__GO:0097470
                 |   |__GO:0098682
                 |   |__GO:0098683
                 |   |__GO:0098684
                 |__GO:0098685
                 |__GO:0098690
                 |__GO:0098691 1 rec.
                 |__GO:0098692
                 |__GO:0098793 560 rec.
                 |   |__GO:0008021(+) 219 rec.
                 |   |__GO:0042734(+) 50 rec.
                 |   |__GO:0043195(+) 240 rec.
                 |   |__GO:0043679(+) 278 rec.
                 |   |__GO:0048786(+) 107 rec.
                 |   |__GO:0098830(+) 3 rec.
                 |   |__GO:0098833(+) 3 rec.
                 |   |__GO:0099523 6 rec.
                 |   |__GO:0099569(+) 14 rec.
                 |__GO:0098794 162 rec.
                 |   |__GO:0043197(+) 5 rec.
                 |   |__GO:0045211(+) 114 rec.
                 |   |__GO:0098843(+)
                 |   |__GO:0098845(+)
                 |   |__GO:0098975(+) 20 rec.
                 |   |__GO:0099524 4 rec.
                 |   |__GO:0099571(+)
                 |   |__GO:0099572(+) 51 rec.
                 |   |__GO:0150051 4 rec.
                 |   |__GO:1990475
                 |__GO:0098978 8 rec.
                 |   |__GO:0098985(+)
                 |__GO:0098979
                 |__GO:0098981 1 rec.
                 |   |__GO:0098522
                 |__GO:0098982 2 rec.
                 |   |__GO:0098983
                 |__GO:0098984 42 rec.
                 |   |__GO:0032279(+) 42 rec.
                 |   |__GO:0032280(+)
                 |   |__GO:0098686
                 |__GO:0099154
                 |__GO:0099192
                 |__GO:0140240

Spanning Tree View Settings
Parents/Children View Depth	Show hierarchy levels: for parents, for children
Relationships
Is a	cell junction
Part of
Synonyms & Secondary IDs
Synonyms
	"electrotonic synapse" RELATED "mixed synapse" NARROW "synaptic junction" EXACT
Secondary IDs

External Crossreferences & Linkouts
	NIF_Subcellular:sao914572699 Wikipedia:Chemical_synapse