CD304 (human)-muIg Fusion Protein

Human CD304 (neuropilin, NRP, NP1, BDCA-4) is a 140 kD type I glycoprotein expressed by a variety of tissue types,including Treg, follicular TH, neurons, dendritic cells and endothelial cells. Its ligands include VEGF165 and Semaphorin family members. It is a reliable marker for human BCP-ALL. Soluble CD304 has been used to slow progression of murine AML. Protein function: Cell-surface receptor involved in the development of the cardiovascular system, in angiogenesis, in the formation of certain neuronal circuits and in organogenesis outside the nervous system. Mediates the chemorepulsant activity of semaphorins (PubMed:9288753, PubMed:9529250, PubMed:10688880). Recognizes a C-end rule (CendR) motif R/KXXR/K on its ligands which causes cellular internalization and vascular leakage (PubMed:19805273). It binds to semaphorin 3A, the PLGF-2 isoform of PGF, the VEGF165 isoform of VEGFA and VEGFB (PubMed:9288753, PubMed:9529250, PubMed:10688880, PubMed:19805273). Coexpression with KDR results in increased VEGF165 binding to KDR as well as increased chemotaxis. Regulates VEGF-induced angiogenesis. Binding to VEGFA initiates a signaling pathway needed for motor neuron axon guidance and cell body migration, including for the caudal migration of facial motor neurons from rhombomere 4 to rhombomere 6 during embryonic development. Regulates mitochondrial iron transport via interaction with ABCB8/MITOSUR (PubMed:30623799). [The UniProt Consortium]