3.4.21.46 C25A has increased activity compared to the native VEGF-DDELTANDELTAC. Efficiently binds to the soluble receptor VEGFR-2/IgGFc. The C25A mutant behaves mainly as a monomeric protein on SDS-PAGE under reducing conditions but as a dimeric protein under non-reducing conditions. It induces VEGFR-2 Tyr-1175 phosphorylation 698902 3.4.21.46 C25A/P43S has biological activity comparable to that of the native protein in Ba/F3-VEGFR-2 cells 698902 3.4.21.46 C25I is mainly in a presumably covalently bound dimeric form 698902 3.4.21.46 C25L has increased activity compared to the native VEGF-DDELTANDELTAC, the C25L mutant is the most active mutant and is mainly in a presumably covalently bound dimeric form, has highest affinity to bind soluble receptor VEGFR-2/IgGFc. It induces VEGFR-2 Tyr-1175 phosphorylation 698902 3.4.21.46 C25V is mainly in a presumably covalently bound dimeric form 698902 3.4.21.46 C44A does not bind to the soluble receptor VEGFR-2/IgGFc 698902 3.4.21.46 C53A does not bind the soluble receptors VEGFR-2/IgGFc and VEGFR-3/IgGFc 698902 3.4.21.46 C53A does not bind to the soluble receptor VEGFR-2/IgGFc 698902 3.4.21.46 G51C can not induce cell survival, has increased dimer to monomer ratio 698902 3.4.21.46 H133A catalytically inactive 718398