Flrt2
Developmental stage
Detected in embryonic brain at 13 dpc. Levels in brain decrease gradually after 15 dpc, but expression continues after birth (PubMed:21673655). Detected in embryonic myocardium, body wall and pro-epicardial organ at 9.5 dpc. Detected in the epicardial cell layer and throughout the myocardium at 10.5 dpc. Highly expressed in embryonic and neonate heart, but after that levels decrease strongly, and the protein is barely detectable 3 weeks after birth, with even lower levels after 7 and 15 weeks (at protein level) (PubMed:21350012). Detected in the anterior endoderm at 7.5 dpc. Detected on anterior somites, the allantois and mesenchymal tissue behind the developing heart at 8.5 dpc (PubMed:18448090). Detected in the cephalic mesenchyme and in tissue posterior to the developing heart at 9.5 and 10.5 dpc. Detected in the developing stomach and in a subset of the trunk sclerotome at 10.5 dpc. At 11 dpc, detected also in branchial arches, eyes and limbs (PubMed:16872596, PubMed:18448090).
Function
Functions in cell-cell adhesion, cell migration and axon guidance. Mediates cell-cell adhesion via its interactions with ADGRL3 and probably also other latrophilins that are expressed at the surface of adjacent cells (PubMed:21350012, PubMed:25374360, PubMed:25728924). May play a role in the migration of cortical neurons during brain development via its interaction with UNC5D (PubMed:21673655). Mediates axon growth cone collapse and plays a repulsive role in neuron guidance via its interaction with UNC5D, and possibly also other UNC-5 family members (PubMed:21673655, PubMed:25728924). Plays a role in fibroblast growth factor-mediated signaling cascades (PubMed:16872596). Required for normal organization of the cardiac basement membrane during embryogenesis, and for normal embryonic epicardium and heart morphogenesis (PubMed:21350012).
Post-translational modifications
N-glycosylated.
Proteolytic cleavage in the juxtamembrane region gives rise to a soluble ectodomain. Cleavage is probably effected by a metalloprotease.
Tissue Specificity
Detected in adult brain (at protein level).
Cellular localization
- Cell membrane
- Single-pass membrane protein
- Endoplasmic reticulum membrane
- Cell junction
- Focal adhesion
- Secreted
- Extracellular space
- Extracellular matrix
- Synapse
- Synaptosome
- Microsome membrane
- Secreted
- Proteolytic cleavage gives rise to a shedded ectodomain.
Alternative names
Kiaa0405, Flrt2, Leucine-rich repeat transmembrane protein FLRT2, Fibronectin leucine rich transmembrane protein 2