filopodium

I. Involved cell-cell interactions

[source]
Interactors
Protein name
Directionality
Classification
1VCAM1-ITGA4+ITGB1VCAM1_HUMAN - Ligand-ReceptorAdhesion by VCAM
2VCAM1-ITGA9+ITGB1VCAM1_HUMAN - Ligand-ReceptorAdhesion by VCAM

II. Literature review

[source]
Namefilopodium
IDGO_0030175
collection_id

Cellular component

Alternative ID

GO:0030028

Description

Thin, stiff, actin-based protrusion extended by the leading edge of a motile cell such as a crawling fibroblast or amoeba, or an axonal or dendritic growth cone, or a dendritic shaft.

Comment

A filopodium may be approximately 0.1 um wide, 5-10 um long, and up to 50 um long in axon growth cones; contain a loose bundle of about 20 actin filaments oriented with their plus ends pointing outward. Note that filopodia on dendritic shafts are distinct from other types of filopodia (even those found in dendritic growth cones) and may react differently to stimuli, as shown in PMID:12904473.

External URL
Genes