Definitions for neuropilins
neu·ropilins

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1. neuropilins

   Neuropilin is a protein receptor active in neurons. There are two forms of Neuropilins, NRP-1 and NRP-2. Neuropilins are transmembrane glycoproteins, first documented to regulate neurogenesis and angiogenesis by complexing with Plexin receptors/class-3 semaphorin ligands and Vascular Endothelial Growth Factor (VEGF) receptors/VEGF ligands, respectively. Neuropilins predominantly act as co-receptors as they have a very small cytoplasmic domain and thus rely upon other cell surface receptors to transduce their signals across a cell membrane. Recent studies have shown that Neuropilins are multifunctional and can partner with a wide variety of transmembrane receptors. Neuropilins are therefore associated with numerous signalling pathways including those activated by Epidermal Growth Factor (EGF), Fibroblast Growth Factor (FGF), Hepatocyte Growth Factor (HGF), Insulin-like Growth Factor (IGF), Platelet Derived Growth Factor (PDGF) and Transforming Growth Factor beta (TGFβ). Although Neuropilins are commonly found at the cell surface, they have also been reported within the mitochondria and nucleus. Both Neuropilin family members can also be found in soluble forms created by alternative splicing or by ectodomain shedding from the cell surface.The pleiotropic nature of the NRP receptors results in their involvement in cellular processes, such as axon guidance and angiogenesis, the immune response and remyelination. Therefore, dysregulation of NRP activity has been implicated in many pathological conditions, including many types of cancer and cardiovascular disease.

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1. Neuropilins

   Neuropilins are 140-kDa vertebrate cell surface receptors that bind neuronal guidance molecules during neural development and axonal outgrowth, and modulate VEGF-mediated angiogenesis. NEUROPILIN-1 and NEUROPILIN-2 differ in their binding specificities, and are distributed complementarily in regions of the developing nervous system. Neuropilins are receptors for secreted CLASS 3 SEMAPHORINS as well as for vascular endothelial growth factors, and may form hetero- or homodimers. They may also interact synergistically with plexins and with VEGF RECEPTORS to form receptor complexes with distinct affinities and specificities. Neuropilin binding specificity is determined by CUB and coagulation-factor-like domains in the extracellular portion of the molecule, while a MAM domain is essential for SIGNAL TRANSDUCTION.

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Numerology

1. Chaldean Numerology

   The numerical value of neuropilins in Chaldean Numerology is: 1

2. Pythagorean Numerology

   The numerical value of neuropilins in Pythagorean Numerology is: 8

References

1. ^ Wikipedia
   https://en.wikipedia.org/wiki/Neuropilins